introduce booking module, HsBookingItemControllerAcceptanceTest still failing

2024-04-12 16:09:43 +02:00 · 2024-04-12 16:09:43 +02:00 · 85f2a19eaf
commit 85f2a19eaf
parent f0eb76ee61
22 changed files with 2150 additions and 3 deletions
--- a/build.gradle
+++ b/build.gradle
@ -140,7 +140,7 @@ openapiProcessor {
        showWarnings true
        openApiNullable true
    }
-    springHs {
+    springHsOffice {
        processorName 'spring'
        processor 'io.openapiprocessor:openapi-processor-spring:2024.2'
        apiPath "$projectDir/src/main/resources/api-definition/hs-office/hs-office.yaml"
@ -149,11 +149,25 @@ openapiProcessor {
        showWarnings true
        openApiNullable true
    }
+    springHsBooking {
+        processorName 'spring'
+        processor 'io.openapiprocessor:openapi-processor-spring:2022.5'
+        apiPath "$projectDir/src/main/resources/api-definition/hs-booking/hs-booking.yaml"
+        mapping "$projectDir/src/main/resources/api-definition/hs-booking/api-mappings.yaml"
+        targetDir "$buildDir/generated/sources/openapi-javax"
+        showWarnings true
+        openApiNullable true
+    }
 }
 sourceSets.main.java.srcDir 'build/generated/sources/openapi'
 abstract class ProcessSpring extends DefaultTask {}
 tasks.register('processSpring', ProcessSpring)
-['processSpringRoot', 'processSpringRbac', 'processSpringTest', 'processSpringHs'].each {
+['processSpringRoot',
+ 'processSpringRbac',
+ 'processSpringTest',
+ 'processSpringHsOffice',
+ 'processSpringHsBooking'
+].each {
    project.tasks.processSpring.dependsOn it
 }
 project.tasks.processResources.dependsOn processSpring
--- a/src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemController.java
+++ b/src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemController.java
@ -0,0 +1,131 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.api.HsBookingItemsApi;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.HsBookingItemInsertResource;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.HsBookingItemPatchResource;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.HsBookingItemResource;
+import net.hostsharing.hsadminng.mapper.Mapper;
+import net.hostsharing.hsadminng.context.Context;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder;
+
+import java.util.List;
+import java.util.UUID;
+import java.util.function.BiConsumer;
+
+import static net.hostsharing.hsadminng.mapper.PostgresDateRange.toPostgresDateRange;
+
+@RestController
+public class HsBookingItemController implements HsBookingItemsApi {
+
+    @Autowired
+    private Context context;
+
+    @Autowired
+    private Mapper mapper;
+
+    @Autowired
+    private HsBookingItemRepository bookingItemRepo;
+
+    @Override
+    @Transactional(readOnly = true)
+    public ResponseEntity<List<HsBookingItemResource>> listBookingItemsByDebitorUuid(
+            final String currentUser,
+            final String assumedRoles,
+            final UUID debitorUuid) {
+        context.define(currentUser, assumedRoles);
+
+        final var entities = bookingItemRepo.findAllByDebitorUuid(debitorUuid);
+
+        final var resources = mapper.mapList(entities, HsBookingItemResource.class, ENTITY_TO_RESOURCE_POSTMAPPER);
+        return ResponseEntity.ok(resources);
+    }
+
+    @Override
+    @Transactional
+    public ResponseEntity<HsBookingItemResource> addBookingItem(
+            final String currentUser,
+            final String assumedRoles,
+            final HsBookingItemInsertResource body) {
+
+        context.define(currentUser, assumedRoles);
+
+        final var entityToSave = mapper.map(body, HsBookingItemEntity.class, RESOURCE_TO_ENTITY_POSTMAPPER);
+
+        final var saved = bookingItemRepo.save(entityToSave);
+
+        final var uri =
+                MvcUriComponentsBuilder.fromController(getClass())
+                        .path("/api/hs/office/bookingItems/{id}")
+                        .buildAndExpand(saved.getUuid())
+                        .toUri();
+        final var mapped = mapper.map(saved, HsBookingItemResource.class, ENTITY_TO_RESOURCE_POSTMAPPER);
+        return ResponseEntity.created(uri).body(mapped);
+    }
+
+    @Override
+    @Transactional(readOnly = true)
+    public ResponseEntity<HsBookingItemResource> getBookingItemByUuid(
+            final String currentUser,
+            final String assumedRoles,
+            final UUID bookingItemUuid) {
+
+        context.define(currentUser, assumedRoles);
+
+        final var result = bookingItemRepo.findByUuid(bookingItemUuid);
+        if (result.isEmpty()) {
+            return ResponseEntity.notFound().build();
+        }
+        return ResponseEntity.ok(mapper.map(result.get(), HsBookingItemResource.class, ENTITY_TO_RESOURCE_POSTMAPPER));
+    }
+
+    @Override
+    @Transactional
+    public ResponseEntity<Void> deleteBookingIemByUuid(
+            final String currentUser,
+            final String assumedRoles,
+            final UUID bookingItemUuid) {
+        context.define(currentUser, assumedRoles);
+
+        final var result = bookingItemRepo.deleteByUuid(bookingItemUuid);
+        if (result == 0) {
+            return ResponseEntity.notFound().build();
+        }
+
+        return ResponseEntity.noContent().build();
+    }
+
+    @Override
+    @Transactional
+    public ResponseEntity<HsBookingItemResource> patchBookingItem(
+            final String currentUser,
+            final String assumedRoles,
+            final UUID bookingItemUuid,
+            final HsBookingItemPatchResource body) {
+
+        context.define(currentUser, assumedRoles);
+
+        final var current = bookingItemRepo.findByUuid(bookingItemUuid).orElseThrow();
+
+        new HsBookingItemEntityPatcher(current).apply(body);
+
+        final var saved = bookingItemRepo.save(current);
+        final var mapped = mapper.map(saved, HsBookingItemResource.class, ENTITY_TO_RESOURCE_POSTMAPPER);
+        return ResponseEntity.ok(mapped);
+    }
+
+    final BiConsumer<HsBookingItemEntity, HsBookingItemResource> ENTITY_TO_RESOURCE_POSTMAPPER = (entity, resource) -> {
+        resource.setValidFrom(entity.getValidity().lower());
+        if (entity.getValidity().hasUpperBound()) {
+            resource.setValidTo(entity.getValidity().upper().minusDays(1));
+        }
+        resource.getDebitor().setDebitorNumber(entity.getDebitor().getDebitorNumber());
+    };
+
+    final BiConsumer<HsBookingItemInsertResource, HsBookingItemEntity> RESOURCE_TO_ENTITY_POSTMAPPER = (resource, entity) -> {
+        entity.setValidity(toPostgresDateRange(resource.getValidFrom(), resource.getValidTo()));
+    };
+}
--- a/src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntity.java
+++ b/src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntity.java
@ -0,0 +1,154 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import io.hypersistence.utils.hibernate.type.json.JsonType;
+import io.hypersistence.utils.hibernate.type.range.PostgreSQLRangeType;
+import io.hypersistence.utils.hibernate.type.range.Range;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import net.hostsharing.hsadminng.hs.office.debitor.HsOfficeDebitorEntity;
+import net.hostsharing.hsadminng.hs.office.relation.HsOfficeRelationEntity;
+import net.hostsharing.hsadminng.rbac.rbacobject.RbacObject;
+import net.hostsharing.hsadminng.rbac.rbacdef.RbacView;
+import net.hostsharing.hsadminng.rbac.rbacdef.RbacView.SQL;
+import net.hostsharing.hsadminng.stringify.Stringify;
+import net.hostsharing.hsadminng.stringify.Stringifyable;
+import org.hibernate.annotations.Type;
+
+import jakarta.persistence.*;
+import java.io.IOException;
+import java.time.LocalDate;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.UUID;
+import java.util.function.BinaryOperator;
+
+import static java.util.Optional.ofNullable;
+import static java.util.stream.Collectors.toMap;
+import static net.hostsharing.hsadminng.mapper.PostgresDateRange.lowerInclusiveFromPostgresDateRange;
+import static net.hostsharing.hsadminng.mapper.PostgresDateRange.toPostgresDateRange;
+import static net.hostsharing.hsadminng.mapper.PostgresDateRange.upperInclusiveFromPostgresDateRange;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Column.dependsOnColumn;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Nullable.NOT_NULL;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Permission.*;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Role.*;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.SQL.*;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.rbacViewFor;
+import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
+
+@Builder
+@Entity
+@Table(name = "hs_booking_item_rv")
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class HsBookingItemEntity implements Stringifyable, RbacObject {
+
+    private static Stringify<HsBookingItemEntity> stringify = stringify(HsBookingItemEntity.class)
+            .withProp(e -> e.getDebitor().toShortString())
+            .withProp(HsBookingItemEntity::getCaption)
+            .withProp(e -> e.getValidity().asString())
+            .withProp(HsBookingItemEntity::getResources)
+            .quotedValues(false);
+
+    @Id
+    @GeneratedValue
+    private UUID uuid;
+
+    @Version
+    private int version;
+
+    @Column(name = "caption")
+    private String caption;
+
+    @ManyToOne(optional = false)
+    @JoinColumn(name = "debitoruuid")
+    private HsOfficeDebitorEntity debitor;
+
+    @Builder.Default
+    @Type(PostgreSQLRangeType.class)
+    @Column(name = "validity", columnDefinition = "daterange")
+    private Range<LocalDate> validity = Range.emptyRange(LocalDate.class);
+
+    @Builder.Default
+    @Type(JsonType.class)
+    @Column(columnDefinition = "resources")
+    private Map<String, Object> resources = new TreeMap<>();
+
+    public Map<String, Object> getResources() {
+        return resources.entrySet().stream()
+                .collect(toMap(Map.Entry::getKey, Map.Entry::getValue, HsBookingItemEntity::thereIsOnlyOneValuePerKey, TreeMap::new));
+    }
+
+    public void setValidFrom(final LocalDate validFrom) {
+        setValidity(toPostgresDateRange(validFrom, getValidTo()));
+    }
+
+    public void setValidTo(final LocalDate validTo) {
+        setValidity(toPostgresDateRange(getValidFrom(), validTo));
+    }
+
+    public LocalDate getValidFrom() {
+        return lowerInclusiveFromPostgresDateRange(getValidity());
+    }
+
+    public LocalDate getValidTo() {
+        return upperInclusiveFromPostgresDateRange(getValidity());
+    }
+
+
+    @Override
+    public String toString() {
+        return stringify.apply(this);
+    }
+
+    @Override
+    public String toShortString() {
+        return ofNullable(debitor).map(HsOfficeDebitorEntity::toShortString).orElse("D-???????") +
+                ":" + caption;
+    }
+
+    private static BinaryOperator<Object> thereIsOnlyOneValuePerKey(Object o, Object o1) {
+        return (a, b) -> a;
+    }
+
+    public static RbacView rbac() {
+        return rbacViewFor("bookingItem", HsBookingItemEntity.class)
+                .withIdentityView(SQL.projection("caption")) // FIXME: use memberNumber:caption
+                .withUpdatableColumns("version", "validity", "resources")
+
+                .importEntityAlias("debitor", HsOfficeDebitorEntity.class,
+                        dependsOnColumn("debitorUuid"),
+                        directlyFetchedByDependsOnColumn(),
+                        NOT_NULL)
+
+                .importEntityAlias("debitorRel", HsOfficeRelationEntity.class,
+                        dependsOnColumn("debitorUuid"),
+                        fetchedBySql("""
+                                SELECT ${columns}
+                                    FROM hs_office_relation debitorRel
+                                    JOIN hs_office_debitor debitor ON debitor.debitorRelUuid = debitorRel.uuid
+                                    WHERE debitor.uuid = ${REF}.debitorUuid
+                                """),
+                        NOT_NULL)
+                .toRole("debitorRel", ADMIN).grantPermission(INSERT)
+                .toRole("global", ADMIN).grantPermission(DELETE)
+
+                .createRole(OWNER, (with) -> {
+                    with.incomingSuperRole("debitorRel", AGENT);
+                    with.permission(UPDATE);
+                })
+                .createSubRole(ADMIN)
+                .createSubRole(TENANT, (with) -> {
+                    with.outgoingSubRole("debitorRel", TENANT);
+                    with.permission(SELECT);
+                });
+    }
+
+    public static void main(String[] args) throws IOException {
+        rbac().generateWithBaseFileName("6-hs-booking/601-booking-item/6013-hs-booking-item-rbac");
+    }
+}
--- a/src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntityPatcher.java
+++ b/src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntityPatcher.java
@ -0,0 +1,53 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.ArbitraryBookingResourcesJsonResource;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.HsBookingItemPatchResource;
+import net.hostsharing.hsadminng.mapper.EntityPatcher;
+import net.hostsharing.hsadminng.mapper.OptionalFromJson;
+
+import java.util.Map;
+import java.util.Optional;
+import java.util.stream.Collectors;
+
+import static java.util.Arrays.stream;
+
+public class HsBookingItemEntityPatcher implements EntityPatcher<HsBookingItemPatchResource> {
+
+    private final HsBookingItemEntity entity;
+
+    public HsBookingItemEntityPatcher(final HsBookingItemEntity entity) {
+        this.entity = entity;
+    }
+
+    @Override
+    public void apply(final HsBookingItemPatchResource resource) {
+        OptionalFromJson.of(resource.getCaption())
+                .ifPresent(entity::setCaption);
+        Optional.ofNullable(resource.getResources())
+                .ifPresent(r -> setResources(entity, r));
+        OptionalFromJson.of(resource.getValidFrom())
+                .ifPresent(entity::setValidFrom);
+        OptionalFromJson.of(resource.getValidTo())
+                .ifPresent(entity::setValidTo);
+    }
+
+    private static void setResources(
+            final HsBookingItemEntity entity,
+            final ArbitraryBookingResourcesJsonResource arbitraryBookingResourcesJsonResource) {
+        entity.getResources().putAll(objectToMap(arbitraryBookingResourcesJsonResource));
+    }
+
+    static Map<String, Object> objectToMap(final Object obj) {
+        final var map = stream(obj.getClass().getDeclaredFields())
+                .map(field -> {
+                    try {
+                        field.setAccessible(true);
+                        return Map.entry(field.getName(), field.get(obj));
+                    } catch (final IllegalAccessException exc) {
+                        throw new RuntimeException(exc);
+                    }
+                })
+                .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
+        return map;
+    }
+}
--- a/src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemRepository.java
+++ b/src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemRepository.java
@ -0,0 +1,21 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import org.springframework.data.repository.Repository;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+public interface HsBookingItemRepository extends Repository<HsBookingItemEntity, UUID> {
+
+    List<HsBookingItemEntity> findAll();
+    Optional<HsBookingItemEntity> findByUuid(final UUID bookingItemUuid);
+
+    List<HsBookingItemEntity> findAllByDebitorUuid(final UUID bookingItemUuid);
+
+    HsBookingItemEntity save(HsBookingItemEntity current);
+
+    int deleteByUuid(final UUID uuid);
+
+    long count();
+}
--- a/src/main/resources/api-definition/hs-booking/api-mappings.yaml
+++ b/src/main/resources/api-definition/hs-booking/api-mappings.yaml
@ -0,0 +1,18 @@
+openapi-processor-mapping: v2
+
+options:
+    package-name: net.hostsharing.hsadminng.hs.booking.generated.api.v1
+    model-name-suffix: Resource
+    bean-validation: true
+
+map:
+    result: org.springframework.http.ResponseEntity
+
+    types:
+        - type: array => java.util.List
+        - type: string:uuid => java.util.UUID
+        - type: string:format => java.lang.String
+
+    paths:
+        /api/hs/booking/items/{itemUUID}:
+            null: org.openapitools.jackson.nullable.JsonNullable
--- a/src/main/resources/api-definition/hs-booking/auth.yaml
+++ b/src/main/resources/api-definition/hs-booking/auth.yaml
@ -0,0 +1,20 @@
+
+components:
+
+    parameters:
+
+        currentUser:
+            name: current-user
+            in: header
+            required: true
+            schema:
+                type: string
+            description: Identifying name of the currently logged in user.
+
+        assumedRoles:
+            name: assumed-roles
+            in: header
+            required: false
+            schema:
+                type: string
+            description: Semicolon-separated list of roles to assume. The current user needs to have the right to assume these roles.
--- a/src/main/resources/api-definition/hs-booking/error-responses.yaml
+++ b/src/main/resources/api-definition/hs-booking/error-responses.yaml
@ -0,0 +1,40 @@
+components:
+
+    responses:
+        NotFound:
+            description: The specified  was not found.
+            content:
+                application/json:
+                    schema:
+                        $ref: '#/components/schemas/Error'
+        Unauthorized:
+            description: The current user is unknown or not authorized.
+            content:
+                application/json:
+                    schema:
+                        $ref: '#/components/schemas/Error'
+        Forbidden:
+            description: The current user or none of the assumed or roles is granted access to the resource.
+            content:
+                application/json:
+                    schema:
+                        $ref: '#/components/schemas/Error'
+        Conflict:
+            description: The request could not be completed due to a conflict with the current state of the target resource.
+            content:
+                application/json:
+                    schema:
+                        $ref: '#/components/schemas/Error'
+
+    schemas:
+
+        Error:
+            type: object
+            properties:
+                code:
+                    type: string
+                message:
+                    type: string
+            required:
+                - code
+                - message
--- a/src/main/resources/api-definition/hs-booking/hs-booking-item-schemas.yaml
+++ b/src/main/resources/api-definition/hs-booking/hs-booking-item-schemas.yaml
@ -0,0 +1,81 @@
+
+components:
+
+    schemas:
+
+        HsBookingItem:
+            type: object
+            properties:
+                uuid:
+                    type: string
+                    format: uuid
+                debitor:
+                    $ref: '../hs-office/hs-office-debitor-schemas.yaml#/components/schemas/HsOfficeDebitor'
+                caption:
+                    type: string
+                validFrom:
+                   type: string
+                   format: date
+                validTo:
+                   type: string
+                   format: date
+                resources:
+                    $ref: '#/components/schemas/ArbitraryBookingResourcesJson'
+            required:
+                - uuid
+                - debitor
+                - validFrom
+                - validTo
+                - resources
+
+        HsBookingItemPatch:
+            type: object
+            properties:
+                caption:
+                    type: string
+                    nullable: true
+                validFrom:
+                    type: string
+                    format: date
+                    nullable: true
+                validTo:
+                    type: string
+                    format: date
+                    nullable: true
+                resources:
+                    $ref: '#/components/schemas/ArbitraryBookingResourcesJson'
+            additionalProperties: false
+
+        HsBookingItemInsert:
+            type: object
+            properties:
+                debitorUuid:
+                    type: string
+                    format: uuid
+                    nullable: false
+                caption:
+                    type: string
+                    minLength: 3
+                    maxLength:
+                    nullable: false
+                validFrom:
+                    type: string
+                    format: date
+                    nullable: false
+                validTo:
+                    type: string
+                    format: date
+                    nullable: true
+                resources:
+                    $ref: '#/components/schemas/ArbitraryBookingResourcesJson'
+            required:
+                - caption
+                - debitorUuid
+                - validFrom
+                - resources
+            additionalProperties: false
+
+        ArbitraryBookingResourcesJson:
+            type: object
+            description: An object containing arbitrary JSON
+            additionalProperties: true
--- a/src/main/resources/api-definition/hs-booking/hs-booking-items-with-uuid.yaml
+++ b/src/main/resources/api-definition/hs-booking/hs-booking-items-with-uuid.yaml
@ -0,0 +1,83 @@
+get:
+    tags:
+        - hs-booking-items
+    description: 'Fetch a single booking item its uuid, if visible for the current subject.'
+    operationId: getBookingItemByUuid
+    parameters:
+        - $ref: './auth.yaml#/components/parameters/currentUser'
+        - $ref: './auth.yaml#/components/parameters/assumedRoles'
+        - name: bookingItemUUID
+          in: path
+          required: true
+          schema:
+              type: string
+              format: uuid
+          description: UUID of the booking item to fetch.
+    responses:
+        "200":
+            description: OK
+            content:
+                'application/json':
+                    schema:
+                        $ref: './hs-booking-item-schemas.yaml#/components/schemas/HsBookingItem'
+
+        "401":
+            $ref: './error-responses.yaml#/components/responses/Unauthorized'
+        "403":
+            $ref: './error-responses.yaml#/components/responses/Forbidden'
+
+patch:
+    tags:
+        - hs-booking-items
+    description: 'Updates a single booking item identified by its uuid, if permitted for the current subject.'
+    operationId: patchBookingItem
+    parameters:
+        -   $ref: './auth.yaml#/components/parameters/currentUser'
+        -   $ref: './auth.yaml#/components/parameters/assumedRoles'
+        -   name: bookingItemUUID
+            in: path
+            required: true
+            schema:
+                type: string
+                format: uuid
+    requestBody:
+        content:
+            'application/json':
+                schema:
+                    $ref: './hs-booking-item-schemas.yaml#/components/schemas/HsBookingItemPatch'
+    responses:
+        "200":
+            description: OK
+            content:
+                'application/json':
+                    schema:
+                        $ref: './hs-booking-item-schemas.yaml#/components/schemas/HsBookingItem'
+        "401":
+            $ref: './error-responses.yaml#/components/responses/Unauthorized'
+        "403":
+            $ref: './error-responses.yaml#/components/responses/Forbidden'
+
+delete:
+    tags:
+        - hs-booking-items
+    description: 'Delete a single booking item identified by its uuid, if permitted for the current subject.'
+    operationId: deleteBookingIemByUuid
+    parameters:
+        - $ref: './auth.yaml#/components/parameters/currentUser'
+        - $ref: './auth.yaml#/components/parameters/assumedRoles'
+        - name: bookingItemUUID
+          in: path
+          required: true
+          schema:
+              type: string
+              format: uuid
+          description: UUID of the booking item to delete.
+    responses:
+        "204":
+            description: No Content
+        "401":
+            $ref: './error-responses.yaml#/components/responses/Unauthorized'
+        "403":
+            $ref: './error-responses.yaml#/components/responses/Forbidden'
+        "404":
+            $ref: './error-responses.yaml#/components/responses/NotFound'
--- a/src/main/resources/api-definition/hs-booking/hs-booking-items.yaml
+++ b/src/main/resources/api-definition/hs-booking/hs-booking-items.yaml
@ -0,0 +1,58 @@
+get:
+    summary: Returns a list of (optionally filtered) booking items.
+    description: Returns the list of (optionally filtered) booking items which are visible to the current user or any of it's assumed roles.
+    tags:
+        - hs-booking-items
+    operationId: listBookingItemsByDebitorUuid
+    parameters:
+        - $ref: './auth.yaml#/components/parameters/currentUser'
+        - $ref: './auth.yaml#/components/parameters/assumedRoles'
+        - name: debitorUuid
+          in: query
+          required: false
+          schema:
+              type: string
+              format: uuid
+          description: The UUID of the debitor, whose booking items are to be listed.
+    responses:
+        "200":
+            description: OK
+            content:
+                'application/json':
+                    schema:
+                        type: array
+                        items:
+                            $ref: './hs-booking-item-schemas.yaml#/components/schemas/HsBookingItem'
+        "401":
+            $ref: './error-responses.yaml#/components/responses/Unauthorized'
+        "403":
+            $ref: './error-responses.yaml#/components/responses/Forbidden'
+
+post:
+    summary: Adds a new booking item.
+    tags:
+        - hs-booking-items
+    operationId: addBookingItem
+    parameters:
+        - $ref: './auth.yaml#/components/parameters/currentUser'
+        - $ref: './auth.yaml#/components/parameters/assumedRoles'
+    requestBody:
+        description: A JSON object describing the new booking item.
+        required: true
+        content:
+            application/json:
+                schema:
+                    $ref: '/hs-booking-item-schemas.yaml#/components/schemas/HsBookingItemInsert'
+    responses:
+        "201":
+            description: Created
+            content:
+                'application/json':
+                    schema:
+                        $ref: './hs-booking-item-schemas.yaml#/components/schemas/HsBookingItem'
+        "401":
+            $ref: './error-responses.yaml#/components/responses/Unauthorized'
+        "403":
+            $ref: './error-responses.yaml#/components/responses/Forbidden'
+        "409":
+            $ref: './error-responses.yaml#/components/responses/Conflict'
--- a/src/main/resources/api-definition/hs-booking/hs-booking.yaml
+++ b/src/main/resources/api-definition/hs-booking/hs-booking.yaml
@ -0,0 +1,17 @@
+openapi: 3.0.3
+info:
+  title: Hostsharing hsadmin-ng API
+  version: v0
+servers:
+  - url: http://localhost:8080
+    description: Local development default URL.
+
+paths:
+
+  # Items
+
+  /api/hs/booking/items:
+    $ref: "./hs-booking-items.yaml"
+
+  /api/hs/booking/items/{itemUUID}:
+    $ref: "./hs-booking-items-with-uuid.yaml"
--- a/src/main/resources/db/changelog/5-hs-office/507-sepamandate/5070-hs-office-sepamandate.sql
+++ b/src/main/resources/db/changelog/5-hs-office/507-sepamandate/5070-hs-office-sepamandate.sql
@ -7,7 +7,7 @@
 create table if not exists hs_office_sepamandate
 (
    uuid                uuid unique references RbacObject (uuid) initially deferred,
-    version      int not null default 0,
+    version             int not null default 0,
    debitorUuid         uuid not null references hs_office_debitor(uuid),
    bankAccountUuid     uuid not null references hs_office_bankaccount(uuid),
    reference           varchar(96) not null,
--- a/src/main/resources/db/changelog/6-hs-booking/601-booking-item/6010-hs-booking-item.sql
+++ b/src/main/resources/db/changelog/6-hs-booking/601-booking-item/6010-hs-booking-item.sql
@ -0,0 +1,24 @@
+--liquibase formatted sql
+
+-- ============================================================================
+--changeset booking-item-MAIN-TABLE:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+create table if not exists hs_booking_item
+(
+    uuid                uuid unique references RbacObject (uuid),
+    version             int not null default 0,
+    debitorUuid         uuid not null references hs_office_debitor(uuid),
+    caption             varchar(80) not null,
+    validity            daterange not null,
+    resources           jsonb not null
+);
+--//
+
+
+-- ============================================================================
+--changeset hs-booking-item-MAIN-TABLE-JOURNAL:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+call create_journal('hs_booking_item');
+--//
--- a/src/main/resources/db/changelog/6-hs-booking/601-booking-item/6013-hs-booking-item-rbac.md
+++ b/src/main/resources/db/changelog/6-hs-booking/601-booking-item/6013-hs-booking-item-rbac.md
@ -0,0 +1,285 @@
+### rbac bookingItem
+
+This code generated was by RbacViewMermaidFlowchartGenerator, do not amend manually.
+
+```mermaid
+%%{init:{'flowchart':{'htmlLabels':false}}}%%
+flowchart TB
+
+subgraph debitor.debitorRel.anchorPerson["`**debitor.debitorRel.anchorPerson**`"]
+    direction TB
+    style debitor.debitorRel.anchorPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.debitorRel.anchorPerson:roles[ ]
+        style debitor.debitorRel.anchorPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitor.debitorRel.anchorPerson:OWNER[[debitor.debitorRel.anchorPerson:OWNER]]
+        role:debitor.debitorRel.anchorPerson:ADMIN[[debitor.debitorRel.anchorPerson:ADMIN]]
+        role:debitor.debitorRel.anchorPerson:REFERRER[[debitor.debitorRel.anchorPerson:REFERRER]]
+    end
+end
+
+subgraph debitor.debitorRel.holderPerson["`**debitor.debitorRel.holderPerson**`"]
+    direction TB
+    style debitor.debitorRel.holderPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.debitorRel.holderPerson:roles[ ]
+        style debitor.debitorRel.holderPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitor.debitorRel.holderPerson:OWNER[[debitor.debitorRel.holderPerson:OWNER]]
+        role:debitor.debitorRel.holderPerson:ADMIN[[debitor.debitorRel.holderPerson:ADMIN]]
+        role:debitor.debitorRel.holderPerson:REFERRER[[debitor.debitorRel.holderPerson:REFERRER]]
+    end
+end
+
+subgraph debitorRel.anchorPerson["`**debitorRel.anchorPerson**`"]
+    direction TB
+    style debitorRel.anchorPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitorRel.anchorPerson:roles[ ]
+        style debitorRel.anchorPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitorRel.anchorPerson:OWNER[[debitorRel.anchorPerson:OWNER]]
+        role:debitorRel.anchorPerson:ADMIN[[debitorRel.anchorPerson:ADMIN]]
+        role:debitorRel.anchorPerson:REFERRER[[debitorRel.anchorPerson:REFERRER]]
+    end
+end
+
+subgraph debitorRel.holderPerson["`**debitorRel.holderPerson**`"]
+    direction TB
+    style debitorRel.holderPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitorRel.holderPerson:roles[ ]
+        style debitorRel.holderPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitorRel.holderPerson:OWNER[[debitorRel.holderPerson:OWNER]]
+        role:debitorRel.holderPerson:ADMIN[[debitorRel.holderPerson:ADMIN]]
+        role:debitorRel.holderPerson:REFERRER[[debitorRel.holderPerson:REFERRER]]
+    end
+end
+
+subgraph debitor.debitorRel["`**debitor.debitorRel**`"]
+    direction TB
+    style debitor.debitorRel fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.debitorRel:roles[ ]
+        style debitor.debitorRel:roles fill:#99bcdb,stroke:white
+
+        role:debitor.debitorRel:OWNER[[debitor.debitorRel:OWNER]]
+        role:debitor.debitorRel:ADMIN[[debitor.debitorRel:ADMIN]]
+        role:debitor.debitorRel:AGENT[[debitor.debitorRel:AGENT]]
+        role:debitor.debitorRel:TENANT[[debitor.debitorRel:TENANT]]
+    end
+end
+
+subgraph debitor.partnerRel["`**debitor.partnerRel**`"]
+    direction TB
+    style debitor.partnerRel fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.partnerRel:roles[ ]
+        style debitor.partnerRel:roles fill:#99bcdb,stroke:white
+
+        role:debitor.partnerRel:OWNER[[debitor.partnerRel:OWNER]]
+        role:debitor.partnerRel:ADMIN[[debitor.partnerRel:ADMIN]]
+        role:debitor.partnerRel:AGENT[[debitor.partnerRel:AGENT]]
+        role:debitor.partnerRel:TENANT[[debitor.partnerRel:TENANT]]
+    end
+end
+
+subgraph bookingItem["`**bookingItem**`"]
+    direction TB
+    style bookingItem fill:#dd4901,stroke:#274d6e,stroke-width:8px
+
+    subgraph bookingItem:roles[ ]
+        style bookingItem:roles fill:#dd4901,stroke:white
+
+        role:bookingItem:OWNER[[bookingItem:OWNER]]
+        role:bookingItem:ADMIN[[bookingItem:ADMIN]]
+        role:bookingItem:TENANT[[bookingItem:TENANT]]
+    end
+
+    subgraph bookingItem:permissions[ ]
+        style bookingItem:permissions fill:#dd4901,stroke:white
+
+        perm:bookingItem:INSERT{{bookingItem:INSERT}}
+        perm:bookingItem:DELETE{{bookingItem:DELETE}}
+        perm:bookingItem:UPDATE{{bookingItem:UPDATE}}
+        perm:bookingItem:SELECT{{bookingItem:SELECT}}
+    end
+end
+
+subgraph debitor.partnerRel.contact["`**debitor.partnerRel.contact**`"]
+    direction TB
+    style debitor.partnerRel.contact fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.partnerRel.contact:roles[ ]
+        style debitor.partnerRel.contact:roles fill:#99bcdb,stroke:white
+
+        role:debitor.partnerRel.contact:OWNER[[debitor.partnerRel.contact:OWNER]]
+        role:debitor.partnerRel.contact:ADMIN[[debitor.partnerRel.contact:ADMIN]]
+        role:debitor.partnerRel.contact:REFERRER[[debitor.partnerRel.contact:REFERRER]]
+    end
+end
+
+subgraph debitor.partnerRel.holderPerson["`**debitor.partnerRel.holderPerson**`"]
+    direction TB
+    style debitor.partnerRel.holderPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.partnerRel.holderPerson:roles[ ]
+        style debitor.partnerRel.holderPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitor.partnerRel.holderPerson:OWNER[[debitor.partnerRel.holderPerson:OWNER]]
+        role:debitor.partnerRel.holderPerson:ADMIN[[debitor.partnerRel.holderPerson:ADMIN]]
+        role:debitor.partnerRel.holderPerson:REFERRER[[debitor.partnerRel.holderPerson:REFERRER]]
+    end
+end
+
+subgraph debitor["`**debitor**`"]
+    direction TB
+    style debitor fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+end
+
+subgraph debitor.refundBankAccount["`**debitor.refundBankAccount**`"]
+    direction TB
+    style debitor.refundBankAccount fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.refundBankAccount:roles[ ]
+        style debitor.refundBankAccount:roles fill:#99bcdb,stroke:white
+
+        role:debitor.refundBankAccount:OWNER[[debitor.refundBankAccount:OWNER]]
+        role:debitor.refundBankAccount:ADMIN[[debitor.refundBankAccount:ADMIN]]
+        role:debitor.refundBankAccount:REFERRER[[debitor.refundBankAccount:REFERRER]]
+    end
+end
+
+subgraph debitor.partnerRel.anchorPerson["`**debitor.partnerRel.anchorPerson**`"]
+    direction TB
+    style debitor.partnerRel.anchorPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.partnerRel.anchorPerson:roles[ ]
+        style debitor.partnerRel.anchorPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitor.partnerRel.anchorPerson:OWNER[[debitor.partnerRel.anchorPerson:OWNER]]
+        role:debitor.partnerRel.anchorPerson:ADMIN[[debitor.partnerRel.anchorPerson:ADMIN]]
+        role:debitor.partnerRel.anchorPerson:REFERRER[[debitor.partnerRel.anchorPerson:REFERRER]]
+    end
+end
+
+subgraph debitorRel.contact["`**debitorRel.contact**`"]
+    direction TB
+    style debitorRel.contact fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitorRel.contact:roles[ ]
+        style debitorRel.contact:roles fill:#99bcdb,stroke:white
+
+        role:debitorRel.contact:OWNER[[debitorRel.contact:OWNER]]
+        role:debitorRel.contact:ADMIN[[debitorRel.contact:ADMIN]]
+        role:debitorRel.contact:REFERRER[[debitorRel.contact:REFERRER]]
+    end
+end
+
+subgraph debitor.debitorRel.contact["`**debitor.debitorRel.contact**`"]
+    direction TB
+    style debitor.debitorRel.contact fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.debitorRel.contact:roles[ ]
+        style debitor.debitorRel.contact:roles fill:#99bcdb,stroke:white
+
+        role:debitor.debitorRel.contact:OWNER[[debitor.debitorRel.contact:OWNER]]
+        role:debitor.debitorRel.contact:ADMIN[[debitor.debitorRel.contact:ADMIN]]
+        role:debitor.debitorRel.contact:REFERRER[[debitor.debitorRel.contact:REFERRER]]
+    end
+end
+
+subgraph debitorRel["`**debitorRel**`"]
+    direction TB
+    style debitorRel fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitorRel:roles[ ]
+        style debitorRel:roles fill:#99bcdb,stroke:white
+
+        role:debitorRel:OWNER[[debitorRel:OWNER]]
+        role:debitorRel:ADMIN[[debitorRel:ADMIN]]
+        role:debitorRel:AGENT[[debitorRel:AGENT]]
+        role:debitorRel:TENANT[[debitorRel:TENANT]]
+    end
+end
+
+%% granting roles to roles
+role:global:ADMIN -.-> role:debitor.debitorRel.anchorPerson:OWNER
+role:debitor.debitorRel.anchorPerson:OWNER -.-> role:debitor.debitorRel.anchorPerson:ADMIN
+role:debitor.debitorRel.anchorPerson:ADMIN -.-> role:debitor.debitorRel.anchorPerson:REFERRER
+role:global:ADMIN -.-> role:debitor.debitorRel.holderPerson:OWNER
+role:debitor.debitorRel.holderPerson:OWNER -.-> role:debitor.debitorRel.holderPerson:ADMIN
+role:debitor.debitorRel.holderPerson:ADMIN -.-> role:debitor.debitorRel.holderPerson:REFERRER
+role:global:ADMIN -.-> role:debitor.debitorRel.contact:OWNER
+role:debitor.debitorRel.contact:OWNER -.-> role:debitor.debitorRel.contact:ADMIN
+role:debitor.debitorRel.contact:ADMIN -.-> role:debitor.debitorRel.contact:REFERRER
+role:global:ADMIN -.-> role:debitor.debitorRel:OWNER
+role:debitor.debitorRel:OWNER -.-> role:debitor.debitorRel:ADMIN
+role:debitor.debitorRel:ADMIN -.-> role:debitor.debitorRel:AGENT
+role:debitor.debitorRel:AGENT -.-> role:debitor.debitorRel:TENANT
+role:debitor.debitorRel.contact:ADMIN -.-> role:debitor.debitorRel:TENANT
+role:debitor.debitorRel:TENANT -.-> role:debitor.debitorRel.anchorPerson:REFERRER
+role:debitor.debitorRel:TENANT -.-> role:debitor.debitorRel.holderPerson:REFERRER
+role:debitor.debitorRel:TENANT -.-> role:debitor.debitorRel.contact:REFERRER
+role:debitor.debitorRel.anchorPerson:ADMIN -.-> role:debitor.debitorRel:OWNER
+role:debitor.debitorRel.holderPerson:ADMIN -.-> role:debitor.debitorRel:AGENT
+role:global:ADMIN -.-> role:debitor.refundBankAccount:OWNER
+role:debitor.refundBankAccount:OWNER -.-> role:debitor.refundBankAccount:ADMIN
+role:debitor.refundBankAccount:ADMIN -.-> role:debitor.refundBankAccount:REFERRER
+role:debitor.refundBankAccount:ADMIN -.-> role:debitor.debitorRel:AGENT
+role:debitor.debitorRel:AGENT -.-> role:debitor.refundBankAccount:REFERRER
+role:global:ADMIN -.-> role:debitor.partnerRel.anchorPerson:OWNER
+role:debitor.partnerRel.anchorPerson:OWNER -.-> role:debitor.partnerRel.anchorPerson:ADMIN
+role:debitor.partnerRel.anchorPerson:ADMIN -.-> role:debitor.partnerRel.anchorPerson:REFERRER
+role:global:ADMIN -.-> role:debitor.partnerRel.holderPerson:OWNER
+role:debitor.partnerRel.holderPerson:OWNER -.-> role:debitor.partnerRel.holderPerson:ADMIN
+role:debitor.partnerRel.holderPerson:ADMIN -.-> role:debitor.partnerRel.holderPerson:REFERRER
+role:global:ADMIN -.-> role:debitor.partnerRel.contact:OWNER
+role:debitor.partnerRel.contact:OWNER -.-> role:debitor.partnerRel.contact:ADMIN
+role:debitor.partnerRel.contact:ADMIN -.-> role:debitor.partnerRel.contact:REFERRER
+role:global:ADMIN -.-> role:debitor.partnerRel:OWNER
+role:debitor.partnerRel:OWNER -.-> role:debitor.partnerRel:ADMIN
+role:debitor.partnerRel:ADMIN -.-> role:debitor.partnerRel:AGENT
+role:debitor.partnerRel:AGENT -.-> role:debitor.partnerRel:TENANT
+role:debitor.partnerRel.contact:ADMIN -.-> role:debitor.partnerRel:TENANT
+role:debitor.partnerRel:TENANT -.-> role:debitor.partnerRel.anchorPerson:REFERRER
+role:debitor.partnerRel:TENANT -.-> role:debitor.partnerRel.holderPerson:REFERRER
+role:debitor.partnerRel:TENANT -.-> role:debitor.partnerRel.contact:REFERRER
+role:debitor.partnerRel.anchorPerson:ADMIN -.-> role:debitor.partnerRel:OWNER
+role:debitor.partnerRel.holderPerson:ADMIN -.-> role:debitor.partnerRel:AGENT
+role:debitor.partnerRel:ADMIN -.-> role:debitor.debitorRel:ADMIN
+role:debitor.partnerRel:AGENT -.-> role:debitor.debitorRel:AGENT
+role:debitor.debitorRel:AGENT -.-> role:debitor.partnerRel:TENANT
+role:global:ADMIN -.-> role:debitorRel.anchorPerson:OWNER
+role:debitorRel.anchorPerson:OWNER -.-> role:debitorRel.anchorPerson:ADMIN
+role:debitorRel.anchorPerson:ADMIN -.-> role:debitorRel.anchorPerson:REFERRER
+role:global:ADMIN -.-> role:debitorRel.holderPerson:OWNER
+role:debitorRel.holderPerson:OWNER -.-> role:debitorRel.holderPerson:ADMIN
+role:debitorRel.holderPerson:ADMIN -.-> role:debitorRel.holderPerson:REFERRER
+role:global:ADMIN -.-> role:debitorRel.contact:OWNER
+role:debitorRel.contact:OWNER -.-> role:debitorRel.contact:ADMIN
+role:debitorRel.contact:ADMIN -.-> role:debitorRel.contact:REFERRER
+role:global:ADMIN -.-> role:debitorRel:OWNER
+role:debitorRel:OWNER -.-> role:debitorRel:ADMIN
+role:debitorRel:ADMIN -.-> role:debitorRel:AGENT
+role:debitorRel:AGENT -.-> role:debitorRel:TENANT
+role:debitorRel.contact:ADMIN -.-> role:debitorRel:TENANT
+role:debitorRel:TENANT -.-> role:debitorRel.anchorPerson:REFERRER
+role:debitorRel:TENANT -.-> role:debitorRel.holderPerson:REFERRER
+role:debitorRel:TENANT -.-> role:debitorRel.contact:REFERRER
+role:debitorRel.anchorPerson:ADMIN -.-> role:debitorRel:OWNER
+role:debitorRel.holderPerson:ADMIN -.-> role:debitorRel:AGENT
+role:debitorRel:AGENT ==> role:bookingItem:OWNER
+role:bookingItem:OWNER ==> role:bookingItem:ADMIN
+role:bookingItem:ADMIN ==> role:bookingItem:TENANT
+role:bookingItem:TENANT ==> role:debitorRel:TENANT
+
+%% granting permissions to roles
+role:debitorRel:ADMIN ==> perm:bookingItem:INSERT
+role:global:ADMIN ==> perm:bookingItem:DELETE
+role:bookingItem:OWNER ==> perm:bookingItem:UPDATE
+role:bookingItem:TENANT ==> perm:bookingItem:SELECT
+
+```
--- a/src/main/resources/db/changelog/6-hs-booking/601-booking-item/6013-hs-booking-item-rbac.sql
+++ b/src/main/resources/db/changelog/6-hs-booking/601-booking-item/6013-hs-booking-item-rbac.sql
@ -0,0 +1,194 @@
+--liquibase formatted sql
+-- This code generated was by RbacViewPostgresGenerator, do not amend manually.
+
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-OBJECT:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+call generateRelatedRbacObject('hs_booking_item');
+--//
+
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-ROLE-DESCRIPTORS:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+call generateRbacRoleDescriptors('hsBookingItem', 'hs_booking_item');
+--//
+
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-insert-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+/*
+    Creates the roles, grants and permission for the AFTER INSERT TRIGGER.
+ */
+
+create or replace procedure buildRbacSystemForHsBookingItem(
+    NEW hs_booking_item
+)
+    language plpgsql as $$
+
+declare
+    newDebitor hs_office_debitor;
+    newDebitorRel hs_office_relation;
+
+begin
+    call enterTriggerForObjectUuid(NEW.uuid);
+
+    SELECT * FROM hs_office_debitor WHERE uuid = NEW.debitorUuid    INTO newDebitor;
+    assert newDebitor.uuid is not null, format('newDebitor must not be null for NEW.debitorUuid = %s', NEW.debitorUuid);
+
+    SELECT debitorRel.*
+        FROM hs_office_relation debitorRel
+        JOIN hs_office_debitor debitor ON debitor.debitorRelUuid = debitorRel.uuid
+        WHERE debitor.uuid = NEW.debitorUuid
+        INTO newDebitorRel;
+    assert newDebitorRel.uuid is not null, format('newDebitorRel must not be null for NEW.debitorUuid = %s', NEW.debitorUuid);
+
+
+    perform createRoleWithGrants(
+        hsBookingItemOWNER(NEW),
+            permissions => array['UPDATE'],
+            incomingSuperRoles => array[hsOfficeRelationAGENT(newDebitorRel)]
+    );
+
+    perform createRoleWithGrants(
+        hsBookingItemADMIN(NEW),
+            incomingSuperRoles => array[hsBookingItemOWNER(NEW)]
+    );
+
+    perform createRoleWithGrants(
+        hsBookingItemTENANT(NEW),
+            permissions => array['SELECT'],
+            incomingSuperRoles => array[hsBookingItemADMIN(NEW)],
+            outgoingSubRoles => array[hsOfficeRelationTENANT(newDebitorRel)]
+    );
+
+    call grantPermissionToRole(createPermission(NEW.uuid, 'DELETE'), globalAdmin());
+
+    call leaveTriggerForObjectUuid(NEW.uuid);
+end; $$;
+
+/*
+    AFTER INSERT TRIGGER to create the role+grant structure for a new hs_booking_item row.
+ */
+
+create or replace function insertTriggerForHsBookingItem_tf()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    call buildRbacSystemForHsBookingItem(NEW);
+    return NEW;
+end; $$;
+
+create trigger insertTriggerForHsBookingItem_tg
+    after insert on hs_booking_item
+    for each row
+execute procedure insertTriggerForHsBookingItem_tf();
+--//
+
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-INSERT:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+/*
+    Creates INSERT INTO hs_booking_item permissions for the related hs_office_relation rows.
+ */
+do language plpgsql $$
+    declare
+        row hs_office_relation;
+    begin
+        call defineContext('create INSERT INTO hs_booking_item permissions for the related hs_office_relation rows');
+
+        FOR row IN SELECT * FROM hs_office_relation
+            LOOP
+                call grantPermissionToRole(
+                    createPermission(row.uuid, 'INSERT', 'hs_booking_item'),
+                    hsOfficeRelationADMIN(row));
+            END LOOP;
+    END;
+$$;
+
+/**
+    Adds hs_booking_item INSERT permission to specified role of new hs_office_relation rows.
+*/
+create or replace function hs_booking_item_hs_office_relation_insert_tf()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    call grantPermissionToRole(
+            createPermission(NEW.uuid, 'INSERT', 'hs_booking_item'),
+            hsOfficeRelationADMIN(NEW));
+    return NEW;
+end; $$;
+
+-- z_... is to put it at the end of after insert triggers, to make sure the roles exist
+create trigger z_hs_booking_item_hs_office_relation_insert_tg
+    after insert on hs_office_relation
+    for each row
+execute procedure hs_booking_item_hs_office_relation_insert_tf();
+
+/**
+    Checks if the user or assumed roles are allowed to insert a row to hs_booking_item,
+    where the check is performed by an indirect role.
+
+    An indirect role is a role which depends on an object uuid which is not a direct foreign key
+    of the source entity, but needs to be fetched via joined tables.
+*/
+create or replace function hs_booking_item_insert_permission_check_tf()
+    returns trigger
+    language plpgsql as $$
+
+declare
+    superRoleObjectUuid uuid;
+
+begin
+        superRoleObjectUuid := (SELECT debitorRel.uuid
+            FROM hs_office_relation debitorRel
+            JOIN hs_office_debitor debitor ON debitor.debitorRelUuid = debitorRel.uuid
+            WHERE debitor.uuid = NEW.debitorUuid
+        );
+        assert superRoleObjectUuid is not null, 'superRoleObjectUuid must not be null';
+
+        if ( not hasInsertPermission(superRoleObjectUuid, 'INSERT', 'hs_booking_item') ) then
+            raise exception
+                '[403] insert into hs_booking_item not allowed for current subjects % (%)',
+                currentSubjects(), currentSubjectsUuids();
+    end if;
+    return NEW;
+end; $$;
+
+create trigger hs_booking_item_insert_permission_check_tg
+    before insert on hs_booking_item
+    for each row
+        execute procedure hs_booking_item_insert_permission_check_tf();
+--//
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-IDENTITY-VIEW:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+call generateRbacIdentityViewFromProjection('hs_booking_item',
+    $idName$
+        caption
+    $idName$);
+--//
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-RESTRICTED-VIEW:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+call generateRbacRestrictedView('hs_booking_item',
+    $orderBy$
+        caption
+    $orderBy$,
+    $updates$
+        version = new.version,
+        validity = new.validity,
+        resources = new.resources
+    $updates$);
+--//
+
--- a/src/main/resources/db/changelog/6-hs-booking/601-booking-item/6018-hs-booking-item-test-data.sql
+++ b/src/main/resources/db/changelog/6-hs-booking/601-booking-item/6018-hs-booking-item-test-data.sql
@ -0,0 +1,51 @@
+--liquibase formatted sql
+
+
+-- ============================================================================
+--changeset hs-booking-item-TEST-DATA-GENERATOR:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+/*
+    Creates a single hs_booking_item test record.
+ */
+create or replace procedure createHsBookingItemTransactionTestData(
+    givenPartnerNumber numeric,
+    givenDebitorSuffix char(2),
+    givenCaption varchar
+    )
+    language plpgsql as $$
+declare
+    currentTask         varchar;
+    relatedDebitor      hs_office_debitor;
+begin
+    currentTask := 'creating booking-item test-data ' || givenPartnerNumber::text || givenDebitorSuffix;
+    call defineContext(currentTask, null, 'superuser-alex@hostsharing.net', 'global#global:ADMIN');
+    execute format('set local hsadminng.currentTask to %L', currentTask);
+
+    select debitor.* into relatedDebitor
+                     from hs_office_debitor debitor
+                              join hs_office_relation debitorRel on debitorRel.uuid = debitor.debitorRelUuid
+                              join hs_office_relation partnerRel on partnerRel.holderUuid = debitorRel.anchorUuid
+                              join hs_office_partner partner on partner.partnerRelUuid = partnerRel.uuid
+                     where partner.partnerNumber = givenPartnerNumber and debitor.debitorNumberSuffix = givenDebitorSuffix;
+
+    raise notice 'creating test booking-item: %', givenPartnerNumber::text || givenDebitorSuffix::text;
+    raise notice '- using debitor (%): %', relatedDebitor.uuid, relatedDebitor;
+    insert
+        into hs_booking_item (uuid, debitoruuid, caption, validity, resources)
+        values (uuid_generate_v4(), relatedDebitor.uuid, givenCaption, daterange('20221001' , null, '[]'), '{ "CPUs": 2, "HDD-storage": 512 }'::jsonb);
+end; $$;
+--//
+
+
+-- ============================================================================
+--changeset hs-booking-item-TEST-DATA-GENERATION:1 –context=dev,tc endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+do language plpgsql $$
+    begin
+        call createHsBookingItemTransactionTestData(10001, '11', 'some booking 1');
+        call createHsBookingItemTransactionTestData(10002, '12', 'some booking 2');
+        call createHsBookingItemTransactionTestData(10003, '13', 'some booking 3');
+    end;
+$$;
--- a/src/main/resources/db/changelog/db.changelog-master.yaml
+++ b/src/main/resources/db/changelog/db.changelog-master.yaml
@ -127,3 +127,9 @@ databaseChangeLog:
        file: db/changelog/5-hs-office/512-coopassets/5126-hs-office-coopassets-migration.sql
    - include:
        file: db/changelog/5-hs-office/512-coopassets/5128-hs-office-coopassets-test-data.sql
+    - include:
+        file: db/changelog/6-hs-booking/601-booking-item/6010-hs-booking-item.sql
+    - include:
+        file: db/changelog/6-hs-booking/601-booking-item/6013-hs-booking-item-rbac.sql
+    - include:
+        file: db/changelog/6-hs-booking/601-booking-item/6018-hs-booking-item-test-data.sql
--- a/src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemControllerAcceptanceTest.java
+++ b/src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemControllerAcceptanceTest.java
@ -0,0 +1,396 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import io.hypersistence.utils.hibernate.type.range.Range;
+import io.restassured.RestAssured;
+import io.restassured.http.ContentType;
+import net.hostsharing.hsadminng.HsadminNgApplication;
+import net.hostsharing.hsadminng.hs.office.debitor.HsOfficeDebitorRepository;
+import net.hostsharing.hsadminng.hs.office.test.ContextBasedTestWithCleanup;
+import net.hostsharing.test.Accepts;
+import net.hostsharing.test.JpaAttempt;
+import org.json.JSONException;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.web.server.LocalServerPort;
+import org.springframework.transaction.annotation.Transactional;
+
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.PersistenceContext;
+import java.time.LocalDate;
+import java.util.UUID;
+
+import static net.hostsharing.test.JsonMatcher.lenientlyEquals;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.hamcrest.Matchers.startsWith;
+
+@SpringBootTest(
+        webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
+        classes = { HsadminNgApplication.class, JpaAttempt.class }
+)
+@Transactional
+class HsBookingItemControllerAcceptanceTest extends ContextBasedTestWithCleanup {
+
+    @LocalServerPort
+    private Integer port;
+
+    @Autowired
+    HsBookingItemRepository bookingItemRepo;
+
+    @Autowired
+    HsOfficeDebitorRepository debitorRepo;
+
+    @Autowired
+    JpaAttempt jpaAttempt;
+
+    @PersistenceContext
+    EntityManager em;
+
+    @Nested
+    class ListBookingItems {
+
+        @Test
+        void globalAdmin_canViewAllBookingItemsOfArbitraryDebitor() throws JSONException {
+
+            // given
+            context("superuser-alex@hostsharing.net");
+            final var givenDebitor = debitorRepo.findDebitorByDebitorNumber(1000111).get(0);
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "superuser-alex@hostsharing.net")
+                    .port(port)
+                .when()
+                    .get("http://localhost/api/hs/booking/items?debitorUuid" + givenDebitor.getUuid())
+                .then().log().all().assertThat()
+                    .statusCode(200)
+                    .contentType("application/json")
+                    .log().all()
+                    .body("", lenientlyEquals("""
+                    [
+                         {
+                             "debitor": { "debitorNumber": 1000111 },
+                             "validFrom": "2022-10-01",
+                             "validTo": "2026-12-31"
+                         },
+                         {
+                             "debitor": { "debitorNumber": 1000212 },
+                             "validFrom": "2022-10-01",
+                             "validTo": "2026-12-31"
+                         },
+                         {
+                             "debitor": { "debitorNumber": 1000313 },
+                             "validFrom": "2022-10-01",
+                             "validTo": "2026-12-31"
+                         }
+                     ]
+                    """));
+                // @formatter:on
+        }
+    }
+
+    @Nested
+    class AddBookingItem {
+
+        @Test
+        void globalAdmin_canAddBookingItem() {
+
+            context.define("superuser-alex@hostsharing.net");
+            final var givenDebitor = debitorRepo.findDebitorByOptionalNameLike("Third").get(0);
+
+            final var location = RestAssured // @formatter:off
+                    .given()
+                        .header("current-user", "superuser-alex@hostsharing.net")
+                        .contentType(ContentType.JSON)
+                        .body("""
+                               {
+                                   "debitorUuid": "%s",
+                                   "validFrom": "2022-10-13"
+                                 }
+                            """.formatted(givenDebitor.getUuid()))
+                        .port(port)
+                    .when()
+                        .post("http://localhost/api/hs/office/BookingItems")
+                    .then().log().all().assertThat()
+                        .statusCode(201)
+                        .contentType(ContentType.JSON)
+                        .body("", lenientlyEquals("""
+                            {
+                                 "debitor": { "debitorNumber": 1000111 },
+                                 "validFrom": "2022-10-01",
+                                 "validTo": "2026-12-31"
+                            }
+                            """))
+                        .header("Location", startsWith("http://localhost"))
+                    .extract().header("Location");  // @formatter:on
+
+            // finally, the new bookingItem can be accessed under the generated UUID
+            final var newUserUuid = UUID.fromString(
+                    location.substring(location.lastIndexOf('/') + 1));
+            assertThat(newUserUuid).isNotNull();
+        }
+    }
+
+    @Nested
+    class GetBookingItem {
+
+        @Test
+        void globalAdmin_canGetArbitraryBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItemUuid = bookingItemRepo.findAll().stream()
+                            .filter(bi -> bi.getDebitor().getDebitorNumber() == 1000101)
+                            .findAny().orElseThrow().getUuid();
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "superuser-alex@hostsharing.net")
+                    .port(port)
+                .when()
+                    .get("http://localhost/api/hs/booking/items/" + givenBookingItemUuid)
+                .then().log().body().assertThat()
+                    .statusCode(200)
+                    .contentType("application/json")
+                    .body("", lenientlyEquals("""
+                        {
+                            "debitor": { "debitorNumber": 1000111 },
+                            "validFrom": "2022-10-01",
+                            "validTo": "2026-12-31"
+                         }
+                    """)); // @formatter:on
+        }
+
+        @Test
+        void normalUser_canNotGetUnrelatedBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItemUuid = bookingItemRepo.findAll().stream()
+                    .filter(bi -> bi.getDebitor().getDebitorNumber() == 1000101)
+                    .findAny().orElseThrow().getUuid();
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "selfregistered-user-drew@hostsharing.org")
+                    .port(port)
+                .when()
+                    .get("http://localhost/api/hs/booking/items/" + givenBookingItemUuid)
+                .then().log().body().assertThat()
+                    .statusCode(404); // @formatter:on
+        }
+
+        @Test
+        void debitorAgentUser_canGetRelatedBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItemUuid = bookingItemRepo.findAll().stream()
+                    .filter(bi -> bi.getDebitor().getDebitorNumber() == 1000101)
+                    .findAny().orElseThrow().getUuid();
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "person-FirbySusan@example.com")
+                    .port(port)
+                .when()
+                    .get("http://localhost/api/hs/booking/items/" + givenBookingItemUuid)
+                .then().log().body().assertThat()
+                    .statusCode(200)
+                    .contentType("application/json")
+                    .body("", lenientlyEquals("""
+                        {
+                            "debitor": { "debitorNumber": 1000111 },
+                            "validFrom": "2022-10-01",
+                            "validTo": "2026-12-31"
+                        }
+                    """)); // @formatter:on
+        }
+    }
+
+    @Nested
+    class PatchBookingItem {
+
+        @Test
+        void globalAdmin_canPatchAllUpdatablePropertiesOfBookingItem() {
+
+            final var givenBookingItem = givenSomeTemporaryBookingItemForDebitorNumber(1000111);
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "superuser-alex@hostsharing.net")
+                    .contentType(ContentType.JSON)
+                    .body("""
+                        {
+                            "validFrom": "2020-06-05",
+                            "validTo": "2022-12-31",
+                            "resources": {
+                                "CPUs": "2",
+                                "SSD-storage": "512"
+                            }
+                        }
+                        """)
+                    .port(port)
+                .when()
+                    .patch("http://localhost/api/hs/office/BookingItems/" + givenBookingItem.getUuid())
+                .then().log().all().assertThat()
+                    .statusCode(200)
+                    .contentType(ContentType.JSON)
+                    .body("", lenientlyEquals("""
+                        {
+                            "debitor": { "debitorNumber": 1000111 },
+                            "validFrom": "2022-10-01",
+                            "validTo": "2026-12-31"
+                        }
+                    """)); // @formatter:on
+
+            // finally, the bookingItem is actually updated
+            context.define("superuser-alex@hostsharing.net");
+            assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isPresent().get()
+                    .matches(mandate -> {
+                        assertThat(mandate.getDebitor().toString()).isEqualTo("debitor(D-1000111: rel(anchor='LP First GmbH', type='DEBITOR', holder='LP First GmbH'), fir)");
+                        assertThat(mandate.getValidFrom()).isEqualTo("2020-06-05");
+                        assertThat(mandate.getValidTo()).isEqualTo("2022-12-31");
+                        return true;
+                    });
+        }
+
+        @Test
+        void globalAdmin_canPatchJustValidToOfArbitraryBookingItem() {
+
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItem = givenSomeTemporaryBookingItemForDebitorNumber(1000111);
+
+            final var location = RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "superuser-alex@hostsharing.net")
+                    .contentType(ContentType.JSON)
+                    .body("""
+                           {
+                               "validTo": "2022-12-31"
+                           }
+                          """)
+                    .port(port)
+                .when()
+                    .patch("http://localhost/api/hs/office/BookingItems/" + givenBookingItem.getUuid())
+                .then().log().all().assertThat()
+                    .statusCode(200)
+                    .contentType(ContentType.JSON)
+                    .body("", lenientlyEquals("""
+                        {
+                            "debitor": { "debitorNumber": 1000111 },
+                            "validFrom": "2022-10-01",
+                            "validTo": "2026-12-31"
+                        }
+                    """)); // @formatter:on
+
+            // finally, the bookingItem is actually updated
+            assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isPresent().get()
+                    .matches(mandate -> {
+                        assertThat(mandate.getDebitor().toString()).isEqualTo("debitor(D-1000111: rel(anchor='LP First GmbH', type='DEBITOR', holder='LP First GmbH'), fir)");
+                        assertThat(mandate.getValidity().asString()).isEqualTo("[2022-11-01,2023-01-01)");
+                        return true;
+                    });
+        }
+
+        @Test
+        void globalAdmin_canNotPatchReferenceOfArbitraryBookingItem() {
+
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItem = givenSomeTemporaryBookingItemForDebitorNumber(1000111);
+
+            final var location = RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "superuser-alex@hostsharing.net")
+                    .contentType(ContentType.JSON)
+                    .body("""
+                           {
+                               "reference": "temp ref CAT new"
+                           }
+                           """)
+                    .port(port)
+                .when()
+                    .patch("http://localhost/api/hs/office/BookingItems/" + givenBookingItem.getUuid())
+                .then().assertThat()
+                    // TODO.impl: I'd prefer a 400,
+                    //      but OpenApi Spring Code Gen does not convert additonalProperties=false into a validation
+                    .statusCode(200); // @formatter:on
+
+            // finally, the bookingItem is actually updated
+            assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isPresent().get()
+                    .matches(mandate -> {
+                        assertThat(mandate.getValidity().asString()).isEqualTo("[2022-11-01,2023-03-31)");
+                        return true;
+                    });
+        }
+    }
+
+    @Nested
+    class DeleteBookingItem {
+
+        @Test
+        void globalAdmin_canDeleteArbitraryBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItem = givenSomeTemporaryBookingItemForDebitorNumber(1000111);
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "superuser-alex@hostsharing.net")
+                    .port(port)
+                .when()
+                    .delete("http://localhost/api/hs/office/BookingItems/" + givenBookingItem.getUuid())
+                .then().log().body().assertThat()
+                    .statusCode(204); // @formatter:on
+
+            // then the given bookingItem is gone
+            assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isEmpty();
+        }
+
+        @Test
+        void bankAccountAdminUser_canNotDeleteRelatedBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItem = givenSomeTemporaryBookingItemForDebitorNumber(1000111);
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "bankaccount-admin@FirstGmbH.example.com")
+                    .port(port)
+                .when()
+                    .delete("http://localhost/api/hs/office/BookingItems/" + givenBookingItem.getUuid())
+                .then().log().body().assertThat()
+                    .statusCode(403); // @formatter:on
+
+            // then the given bookingItem is still there
+            assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isNotEmpty();
+        }
+
+        @Test
+        @Accepts({ "BookingItem:X(Access Control)" })
+        void normalUser_canNotDeleteUnrelatedBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItem = givenSomeTemporaryBookingItemForDebitorNumber(1000111);
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "selfregistered-user-drew@hostsharing.org")
+                    .port(port)
+                .when()
+                    .delete("http://localhost/api/hs/office/BookingItems/" + givenBookingItem.getUuid())
+                .then().log().body().assertThat()
+                    .statusCode(404); // @formatter:on
+
+            // then the given bookingItem is still there
+            assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isNotEmpty();
+        }
+    }
+
+    private HsBookingItemEntity givenSomeTemporaryBookingItemForDebitorNumber(final int debitorNumber) {
+        return jpaAttempt.transacted(() -> {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenDebitor = debitorRepo.findDebitorByDebitorNumber(debitorNumber).get(0);
+            final var newBookingItem = HsBookingItemEntity.builder()
+                    .uuid(UUID.randomUUID())
+                    .debitor(givenDebitor)
+                    .validity(Range.closedOpen(
+                            LocalDate.parse("2022-11-01"), LocalDate.parse("2023-03-31")))
+                    .build();
+
+            return bookingItemRepo.save(newBookingItem);
+        }).assertSuccessful().returnedValue();
+    }
+}
--- a/src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntityPatcherUnitTest.java
+++ b/src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntityPatcherUnitTest.java
@ -0,0 +1,104 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import io.hypersistence.utils.hibernate.type.range.Range;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.ArbitraryBookingResourcesJsonResource;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.HsBookingItemPatchResource;
+import net.hostsharing.hsadminng.hs.office.debitor.HsOfficeDebitorEntity;
+import net.hostsharing.test.PatchUnitTestBase;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import jakarta.persistence.EntityManager;
+import java.time.LocalDate;
+import java.util.UUID;
+import java.util.stream.Stream;
+
+import static net.hostsharing.hsadminng.hs.booking.item.HsBookingItemEntityPatcher.objectToMap;
+import static net.hostsharing.hsadminng.hs.office.debitor.TestHsOfficeDebitor.TEST_DEBITOR;
+import static org.junit.jupiter.api.TestInstance.Lifecycle.PER_CLASS;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.lenient;
+
+@TestInstance(PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class HsBookingItemEntityPatcherUnitTest extends PatchUnitTestBase<
+        HsBookingItemPatchResource,
+        HsBookingItemEntity
+        > {
+
+    private static final UUID INITIAL_BOOKING_ITEM_UUID = UUID.randomUUID();
+    private static final LocalDate GIVEN_VALID_FROM = LocalDate.parse("2020-04-15");
+    private static final LocalDate PATCHED_VALID_FROM = LocalDate.parse("2022-10-30");
+    private static final LocalDate PATCHED_VALID_TO = LocalDate.parse("2022-12-31");
+
+    private static final ArbitraryBookingResourcesJsonResource PATCHED_RESOURCES = new ArbitraryBookingResourcesJsonResource() {
+        int cpus = 2;
+        int sddStorage = 256;
+        int hddStorage = 2048;
+    };
+    private static final String PATCHED_CAPTION = "caption-patched";
+
+    @Mock
+    private EntityManager em;
+
+    @BeforeEach
+    void initMocks() {
+        lenient().when(em.getReference(eq(HsOfficeDebitorEntity.class), any())).thenAnswer(invocation ->
+                HsOfficeDebitorEntity.builder().uuid(invocation.getArgument(1)).build());
+        lenient().when(em.getReference(eq(HsBookingItemEntity.class), any())).thenAnswer(invocation ->
+                HsBookingItemEntity.builder().uuid(invocation.getArgument(1)).build());
+    }
+
+    @Override
+    protected HsBookingItemEntity newInitialEntity() {
+        final var entity = new HsBookingItemEntity();
+        entity.setUuid(INITIAL_BOOKING_ITEM_UUID);
+        entity.setDebitor(TEST_DEBITOR);
+        entity.setResources(objectToMap(PATCHED_RESOURCES));
+        entity.setCaption(PATCHED_CAPTION);
+        entity.setValidity(Range.closedInfinite(GIVEN_VALID_FROM));
+        return entity;
+    }
+
+    @Override
+    protected HsBookingItemPatchResource newPatchResource() {
+        return new HsBookingItemPatchResource();
+    }
+
+    @Override
+    protected HsBookingItemEntityPatcher createPatcher(final HsBookingItemEntity sepaMandate) {
+        return new HsBookingItemEntityPatcher(sepaMandate);
+    }
+
+    @Override
+    protected Stream<Property> propertyTestDescriptors() {
+        return Stream.of(
+                new JsonNullableProperty<>(
+                        "caption",
+                        HsBookingItemPatchResource::setCaption,
+                        PATCHED_CAPTION,
+                        HsBookingItemEntity::setCaption),
+// FIXME
+//                new JsonNullableProperty<>(
+//                        "resources",
+//                        HsBookingItemPatchResource::setResources,
+//                        PATCHED_RESOURCES,
+//                        HsBookingItemEntity::setResources,
+//                        objectToMap(PATCHED_RESOURCES)),
+                new JsonNullableProperty<>(
+                        "validfrom",
+                        HsBookingItemPatchResource::setValidFrom,
+                        PATCHED_VALID_FROM,
+                        HsBookingItemEntity::setValidFrom),
+                new JsonNullableProperty<>(
+                        "validto",
+                        HsBookingItemPatchResource::setValidTo,
+                        PATCHED_VALID_TO,
+                        HsBookingItemEntity::setValidTo)
+        );
+    }
+}
--- a/src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntityUnitTest.java
+++ b/src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntityUnitTest.java
@ -0,0 +1,56 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDate;
+import java.util.Map;
+
+import static java.util.Map.entry;
+import static net.hostsharing.hsadminng.hs.office.debitor.TestHsOfficeDebitor.TEST_DEBITOR;
+import static net.hostsharing.hsadminng.mapper.PostgresDateRange.toPostgresDateRange;
+import static org.assertj.core.api.Assertions.assertThat;
+
+class HsBookingItemEntityUnitTest {
+    public static final LocalDate GIVEN_VALID_FROM = LocalDate.parse("2020-01-01");
+    public static final LocalDate GIVEN_VALID_TO = LocalDate.parse("2030-12-31");
+
+    final HsBookingItemEntity givenBookingItem = HsBookingItemEntity.builder()
+            .debitor(TEST_DEBITOR)
+            .caption("some caption")
+            .resources(Map.ofEntries(
+                    entry("CPUs", 2),
+                    entry("SSD-storage", 512),
+                    entry("HDD-storage", 2048)))
+            .validity(toPostgresDateRange(GIVEN_VALID_FROM, GIVEN_VALID_TO))
+            .build();
+
+    @Test
+    void toStringContainsAllPropertiesAndResourcesSortedByKey() {
+        final var result = givenBookingItem.toString();
+
+        assertThat(result).isEqualTo("HsBookingItemEntity(D-1000100, some caption, [2020-01-01,2031-01-01), {CPUs=2, HDD-storage=2048, SSD-storage=512})");
+    }
+
+    @Test
+    void toShortStringContainsOnlyMemberNumberAndCaption() {
+        final var result = givenBookingItem.toShortString();
+
+        assertThat(result).isEqualTo("D-1000100:some caption");
+    }
+
+    @Test
+    void settingValidFromKeepsValidTo() {
+        givenBookingItem.setValidFrom(LocalDate.parse("2023-12-31"));
+        assertThat(givenBookingItem.getValidFrom()).isEqualTo(LocalDate.parse("2023-12-31"));
+        assertThat(givenBookingItem.getValidTo()).isEqualTo(GIVEN_VALID_TO);
+
+    }
+
+    @Test
+    void settingValidToKeepsValidFrom() {
+        givenBookingItem.setValidTo(LocalDate.parse("2024-12-31"));
+        assertThat(givenBookingItem.getValidFrom()).isEqualTo(GIVEN_VALID_FROM);
+        assertThat(givenBookingItem.getValidTo()).isEqualTo(LocalDate.parse("2024-12-31"));
+    }
+
+}
--- a/src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemRepositoryIntegrationTest.java
+++ b/src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemRepositoryIntegrationTest.java
@ -0,0 +1,341 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import io.hypersistence.utils.hibernate.type.range.Range;
+import net.hostsharing.hsadminng.context.Context;
+import net.hostsharing.hsadminng.hs.office.debitor.HsOfficeDebitorRepository;
+import net.hostsharing.hsadminng.hs.office.test.ContextBasedTestWithCleanup;
+import net.hostsharing.hsadminng.rbac.rbacgrant.RawRbacGrantRepository;
+import net.hostsharing.hsadminng.rbac.rbacrole.RawRbacRoleRepository;
+import net.hostsharing.test.Array;
+import net.hostsharing.test.JpaAttempt;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.context.annotation.Import;
+import org.springframework.orm.jpa.JpaSystemException;
+
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.PersistenceContext;
+import jakarta.servlet.http.HttpServletRequest;
+import java.time.LocalDate;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+
+import static java.util.Map.entry;
+import static net.hostsharing.hsadminng.rbac.rbacgrant.RawRbacGrantEntity.distinctGrantDisplaysOf;
+import static net.hostsharing.hsadminng.rbac.rbacrole.RawRbacRoleEntity.distinctRoleNamesOf;
+import static net.hostsharing.test.Array.fromFormatted;
+import static net.hostsharing.test.JpaAttempt.attempt;
+import static org.assertj.core.api.Assertions.assertThat;
+
+@DataJpaTest
+@Import({ Context.class, JpaAttempt.class })
+class HsBookingItemRepositoryIntegrationTest extends ContextBasedTestWithCleanup {
+
+    @Autowired
+    HsBookingItemRepository bookingItemRepo;
+
+    @Autowired
+    HsOfficeDebitorRepository debitorRepo;
+
+    @Autowired
+    RawRbacRoleRepository rawRoleRepo;
+
+    @Autowired
+    RawRbacGrantRepository rawGrantRepo;
+
+    @Autowired
+    JpaAttempt jpaAttempt;
+
+    @PersistenceContext
+    EntityManager em;
+
+    @MockBean
+    HttpServletRequest request;
+
+    @Nested
+    class CreateBookingItem {
+
+        @Test
+        public void testHostsharingAdmin_withoutAssumedRole_canCreateNewBookingItem() {
+            // given
+            context("superuser-alex@hostsharing.net");
+            final var count = bookingItemRepo.count();
+            final var givenDebitor = debitorRepo.findDebitorByOptionalNameLike("First").get(0);
+
+            // when
+            final var result = attempt(em, () -> {
+                final var newBookingItem = HsBookingItemEntity.builder()
+                        .debitor(givenDebitor)
+                        .caption("some new booking item")
+                        .validity(Range.closedOpen(
+                                LocalDate.parse("2020-01-01"), LocalDate.parse("2023-01-01")))
+                        .build();
+                return toCleanup(bookingItemRepo.save(newBookingItem));
+            });
+
+            // then
+            result.assertSuccessful();
+            assertThat(result.returnedValue()).isNotNull().extracting(HsBookingItemEntity::getUuid).isNotNull();
+            assertThatBookingItemIsPersisted(result.returnedValue());
+            assertThat(bookingItemRepo.count()).isEqualTo(count + 1);
+        }
+
+        @Test
+        public void createsAndGrantsRoles() {
+            // given
+            context("superuser-alex@hostsharing.net");
+            final var initialRoleNames = distinctRoleNamesOf(rawRoleRepo.findAll());
+            final var initialGrantNames = distinctGrantDisplaysOf(rawGrantRepo.findAll()).stream()
+                    .map(s -> s.replace("hs_office_", ""))
+                    .toList();
+
+            // when
+            attempt(em, () -> {
+                final var givenDebitor = debitorRepo.findDebitorByOptionalNameLike("First").get(0);
+                final var newBookingItem = HsBookingItemEntity.builder()
+                        .debitor(givenDebitor)
+                        .caption("some new booking item")
+                        .validity(Range.closedOpen(
+                                LocalDate.parse("2020-01-01"), LocalDate.parse("2023-01-01")))
+                        .build();
+                return toCleanup(bookingItemRepo.save(newBookingItem));
+            });
+
+            // then
+            final var all = rawRoleRepo.findAll();
+            assertThat(distinctRoleNamesOf(all)).containsExactlyInAnyOrder(Array.from(
+                    initialRoleNames,
+                    "hs_booking_item#somenewbookingitem:ADMIN",
+                    "hs_booking_item#somenewbookingitem:OWNER",
+                    "hs_booking_item#somenewbookingitem:TENANT"));
+            assertThat(distinctGrantDisplaysOf(rawGrantRepo.findAll()))
+                    .map(s -> s.replace("hs_office_", ""))
+                    .containsExactlyInAnyOrder(fromFormatted(
+                            initialGrantNames,
+
+                            // insert+delete
+                            "{ grant perm:hs_booking_item#somenewbookingitem:DELETE to role:global#global:ADMIN by system and assume }",
+
+                            // owner
+
+                            // admin
+
+                            // tenant
+
+                            "{ grant perm:hs_booking_item#somenewbookingitem:SELECT to role:hs_booking_item#somenewbookingitem:TENANT by system and assume }",
+                            "{ grant perm:hs_booking_item#somenewbookingitem:UPDATE to role:hs_booking_item#somenewbookingitem:OWNER by system and assume }",
+                            "{ grant role:hs_booking_item#somenewbookingitem:ADMIN to role:hs_booking_item#somenewbookingitem:OWNER by system and assume }",
+                            "{ grant role:hs_booking_item#somenewbookingitem:OWNER to role:relation#FirstGmbH-with-DEBITOR-FirstGmbH:AGENT by system and assume }",
+                            "{ grant role:hs_booking_item#somenewbookingitem:TENANT to role:hs_booking_item#somenewbookingitem:ADMIN by system and assume }",
+                            "{ grant role:relation#FirstGmbH-with-DEBITOR-FirstGmbH:TENANT to role:hs_booking_item#somenewbookingitem:TENANT by system and assume }",
+                            null));
+        }
+
+        private void assertThatBookingItemIsPersisted(final HsBookingItemEntity saved) {
+            final var found = bookingItemRepo.findByUuid(saved.getUuid());
+            assertThat(found).isNotEmpty().map(HsBookingItemEntity::toString).get().isEqualTo(saved.toString());
+        }
+    }
+
+    @Nested
+    class FindByDebitorUuid {
+
+        @Test
+        public void globalAdmin_withoutAssumedRole_canViewAllBookingItemsOfArbitraryDebitor() {
+            // given
+            context("superuser-alex@hostsharing.net");
+            final var debitorUuid = debitorRepo.findDebitorByDebitorNumber(1000111).stream().findAny().orElseThrow().getUuid();
+
+            // when
+            final var result = bookingItemRepo.findAllByDebitorUuid(debitorUuid);
+
+            // then
+            allTheseBookingItemsAreReturned(
+                    result,
+                    "HsBookingItemEntity(D-1000111, some booking 1, [2022-10-01,), {CPUs=2, HDD-storage=512})");
+        }
+
+        @Test
+        public void normalUser_canViewOnlyRelatedBookingItems() {
+            // given:
+            context("bankaccount-admin@FirstGmbH.example.com");
+            final var debitorUuid = debitorRepo.findDebitorByDebitorNumber(1000111).stream().findAny().orElseThrow().getUuid();
+
+            // when:
+            final var result = bookingItemRepo.findAllByDebitorUuid(debitorUuid);
+
+            // then:
+            exactlyTheseBookingItemsAreReturned(
+                    result,
+                    "HsBookingItemEntity(D-1000111, some booking 1, [2022-10-01,), {CPUs=2, HDD-storage=512})");
+        }
+    }
+
+    @Nested
+    class UpdateBookingItem {
+
+        @Test
+        public void hostsharingAdmin_canUpdateArbitraryBookingItem() {
+            // given
+            final var givenBookingItem = givenSomeTemporaryBookingItem(1000111);
+
+            // when
+            final var result = jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net");
+                givenBookingItem.setResources(Map.ofEntries(
+                        entry("CPUs", 2),
+                        entry("SSD-storage", 512),
+                        entry("HDD-storage", 2048)));
+                givenBookingItem.setValidity(Range.closedOpen(
+                        LocalDate.parse("2019-05-17"), LocalDate.parse("2023-01-01")));
+                return toCleanup(bookingItemRepo.save(givenBookingItem));
+            });
+
+            // then
+            result.assertSuccessful();
+            jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net");
+                assertThatBookingItemActuallyInDatabase(result.returnedValue());
+            }).assertSuccessful();
+        }
+
+        private void assertThatBookingItemActuallyInDatabase(final HsBookingItemEntity saved) {
+            final var found = bookingItemRepo.findByUuid(saved.getUuid());
+            assertThat(found).isNotEmpty().get().isNotSameAs(saved)
+                    .extracting(Object::toString).isEqualTo(saved.toString());
+        }
+
+        private void assertThatBookingItemIsVisibleForUserWithRole(
+                final HsBookingItemEntity entity,
+                final String assumedRoles) {
+            jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net", assumedRoles);
+                assertThatBookingItemActuallyInDatabase(entity);
+            }).assertSuccessful();
+        }
+    }
+
+    @Nested
+    class DeleteByUuid {
+
+        @Test
+        public void globalAdmin_withoutAssumedRole_canDeleteAnyBookingItem() {
+            // given
+            context("superuser-alex@hostsharing.net", null);
+            final var givenBookingItem = givenSomeTemporaryBookingItem(1000111);
+
+            // when
+            final var result = jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net");
+                bookingItemRepo.deleteByUuid(givenBookingItem.getUuid());
+            });
+
+            // then
+            result.assertSuccessful();
+            assertThat(jpaAttempt.transacted(() -> {
+                context("superuser-fran@hostsharing.net", null);
+                return bookingItemRepo.findByUuid(givenBookingItem.getUuid());
+            }).assertSuccessful().returnedValue()).isEmpty();
+        }
+
+        @Test
+        public void nonGlobalAdmin_canNotDeleteTheirRelatedBookingItem() {
+            // given
+            context("superuser-alex@hostsharing.net", null);
+            final var givenBookingItem = givenSomeTemporaryBookingItem(1000111);
+
+            // when
+            final var result = jpaAttempt.transacted(() -> {
+                context("person-FirbySusan@example.com");
+                assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isPresent();
+
+                bookingItemRepo.deleteByUuid(givenBookingItem.getUuid());
+            });
+
+            // then
+            result.assertExceptionWithRootCauseMessage(
+                    JpaSystemException.class,
+                    "[403] Subject ", " is not allowed to delete hs_booking_item");
+            assertThat(jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net");
+                return bookingItemRepo.findByUuid(givenBookingItem.getUuid());
+            }).assertSuccessful().returnedValue()).isPresent(); // still there
+        }
+
+        @Test
+        public void deletingABookingItemAlsoDeletesRelatedRolesAndGrants() {
+            // given
+            context("superuser-alex@hostsharing.net");
+            final var initialRoleNames = Array.from(distinctRoleNamesOf(rawRoleRepo.findAll()));
+            final var initialGrantNames = Array.from(distinctGrantDisplaysOf(rawGrantRepo.findAll()));
+            final var givenBookingItem = givenSomeTemporaryBookingItem(1000111);
+
+            // when
+            final var result = jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net");
+                return bookingItemRepo.deleteByUuid(givenBookingItem.getUuid());
+            });
+
+            // then
+            result.assertSuccessful();
+            assertThat(result.returnedValue()).isEqualTo(1);
+            assertThat(distinctRoleNamesOf(rawRoleRepo.findAll())).containsExactlyInAnyOrder(initialRoleNames);
+            assertThat(distinctGrantDisplaysOf(rawGrantRepo.findAll())).containsExactlyInAnyOrder(initialGrantNames);
+        }
+    }
+
+    @Test
+    public void auditJournalLogIsAvailable() {
+        // given
+        final var query = em.createNativeQuery("""
+                select currentTask, targetTable, targetOp
+                    from tx_journal_v
+                    where targettable = 'hs_booking_item';
+                    """);
+
+        // when
+        @SuppressWarnings("unchecked") final List<Object[]> customerLogEntries = query.getResultList();
+
+        // then
+        assertThat(customerLogEntries).map(Arrays::toString).contains(
+                "[creating booking-item test-data 1000111, hs_booking_item, INSERT]",
+                "[creating booking-item test-data 1000111, hs_booking_item, INSERT]",
+                "[creating booking-item test-data 1000111, hs_booking_item, INSERT]");
+    }
+
+    private HsBookingItemEntity givenSomeTemporaryBookingItem(final int debitorNumber) {
+        return jpaAttempt.transacted(() -> {
+            context("superuser-alex@hostsharing.net");
+            final var givenDebitor = debitorRepo.findDebitorByDebitorNumber(debitorNumber).get(0);
+            final var newBookingItem = HsBookingItemEntity.builder()
+                    .debitor(givenDebitor)
+                    .caption("some temp booking item")
+                    .validity(Range.closedOpen(
+                            LocalDate.parse("2020-01-01"), LocalDate.parse("2023-01-01")))
+                    .resources(Map.ofEntries(
+                            entry("CPUs", 1),
+                            entry("SSD-storage", 256)))
+                    .build();
+
+            return toCleanup(bookingItemRepo.save(newBookingItem));
+        }).assertSuccessful().returnedValue();
+    }
+
+    void exactlyTheseBookingItemsAreReturned(
+            final List<HsBookingItemEntity> actualResult,
+            final String... bookingItemNames) {
+        assertThat(actualResult)
+                .extracting(bookingItemEntity -> bookingItemEntity.toString())
+                .containsExactlyInAnyOrder(bookingItemNames);
+    }
+
+    void allTheseBookingItemsAreReturned(final List<HsBookingItemEntity> actualResult, final String... bookingItemNames) {
+        assertThat(actualResult)
+                .extracting(bookingItemEntity -> bookingItemEntity.toString())
+                .contains(bookingItemNames);
+    }
+}