src/main/java/net/hostsharing/hsadminng/hs/office/debitor/HsOfficeDebitorEntity.java

@@ -15,9 +15,6 @@ import net.hostsharing.hsadminng.rbac.rbacdef.RbacView.SQL;
 import net.hostsharing.hsadminng.stringify.Stringify;
 import net.hostsharing.hsadminng.stringify.Stringifyable;
 import org.hibernate.annotations.GenericGenerator;
-import org.hibernate.annotations.JoinFormula;
-import org.hibernate.annotations.NotFound;
-import org.hibernate.annotations.NotFoundAction;
 
 import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
@@ -77,22 +74,8 @@ public class HsOfficeDebitorEntity implements RbacObject, Stringifyable {
     @Version
     private int version;
 
-    @ManyToOne
-    @JoinFormula(
-        referencedColumnName = "uuid",
-        value = """
-            (
-                SELECT DISTINCT partner.uuid
-                FROM hs_office_partner_rv partner
-                JOIN hs_office_relation_rv dRel
-                    ON dRel.uuid = debitorreluuid AND dRel.type = 'DEBITOR'
-                JOIN hs_office_relation_rv pRel
-                    ON pRel.uuid = partner.partnerRelUuid AND pRel.type = 'PARTNER'
-                WHERE pRel.holderUuid = dRel.anchorUuid
-            )
-            """)
-    @NotFound(action = NotFoundAction.IGNORE)
-    private HsOfficePartnerEntity partner;
+    @Column(name = "partnernumber", columnDefinition = "numeric(5) not null")
+    private Integer partnerNumber; // redundant to HsOfficePartnerEntity.partnerNumber for performance reasons
 
     @Column(name = "debitornumbersuffix", length = 2)
     @Pattern(regexp = TWO_DECIMAL_DIGITS)
@@ -125,9 +108,8 @@ public class HsOfficeDebitorEntity implements RbacObject, Stringifyable {
     private String defaultPrefix;
 
     private String getDebitorNumberString() {
-        return ofNullable(partner)
+        return ofNullable(partnerNumber)
                 .filter(partner -> debitorNumberSuffix != null)
-                .map(HsOfficePartnerEntity::getPartnerNumber)
                 .map(Object::toString)
                 .map(partnerNumber -> partnerNumber + debitorNumberSuffix)
                 .orElse(null);

src/main/java/net/hostsharing/hsadminng/hs/office/partner/HsOfficePartnerRepository.java

@@ -28,6 +28,17 @@ public interface HsOfficePartnerRepository extends Repository<HsOfficePartnerEnt
     List<HsOfficePartnerEntity> findPartnerByOptionalNameLike(String name);
     HsOfficePartnerEntity findPartnerByPartnerNumber(Integer partnerNumber);
 
+    @Query("""
+        SELECT DISTINCT partner
+            FROM HsOfficePartnerEntity partner
+            JOIN HsOfficeRelationEntity dRel
+                ON dRel.uuid = :debitorUuid AND dRel.type = 'DEBITOR'
+            JOIN HsOfficeRelationEntity pRel
+                ON pRel.uuid = partner.partnerRel.uuid AND pRel.type = 'PARTNER'
+            WHERE pRel.holder.uuid = dRel.anchor.uuid
+    """)
+    HsOfficePartnerEntity findPartnerByDebitorUuid(UUID debitorUuid);
+
     HsOfficePartnerEntity save(final HsOfficePartnerEntity entity);
 
     long count();

src/main/java/net/hostsharing/hsadminng/hs/office/relation/HsOfficeRelationEntity.java

@@ -56,15 +56,15 @@ public class HsOfficeRelationEntity implements RbacObject, Stringifyable {
     @Version
     private int version;
 
-    @ManyToOne
+    @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "anchoruuid")
     private HsOfficePersonEntity anchor;
 
-    @ManyToOne
+    @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "holderuuid")
     private HsOfficePersonEntity holder;
 
-    @ManyToOne
+    @ManyToOne(fetch = FetchType.LAZY)
     @JoinColumn(name = "contactuuid")
     private HsOfficeContactEntity contact;
 

src/main/resources/db/changelog/5-hs-office/506-debitor/5060-hs-office-debitor.sql

@@ -8,6 +8,7 @@ create table hs_office_debitor
 (
     uuid                    uuid unique references RbacObject (uuid) initially deferred,
     version                 int not null default 0,
+    partnerNumber           numeric(5) not null, -- redundant to hs_office_partner.partnerNumber for performance reasons
     debitorNumberSuffix     char(2) not null check (debitorNumberSuffix::text ~ '^[0-9][0-9]$'),
     debitorRelUuid          uuid not null references hs_office_relation(uuid),
     billable                boolean not null default true,

src/main/resources/db/changelog/5-hs-office/506-debitor/5068-hs-office-debitor-test-data.sql

@@ -9,7 +9,8 @@
     Creates a single debitor test record.
  */
 create or replace procedure createHsOfficeDebitorTestData(
-        withDebitorNumberSuffix numeric(5),
+        forPartnerNumber numeric(5),
+        withDebitorNumberSuffix numeric(2),
         forPartnerPersonName varchar,
         forBillingContactCaption varchar,
         withDefaultPrefix varchar
@@ -42,8 +43,8 @@ begin
     -- raise exception 'creating test debitor: (uuid=%, debitorRelUuid=%, debitornumbersuffix=%, billable=%, vatbusiness=%, vatreversecharge=%, refundbankaccountuuid=%, defaultprefix=%)',
     --    uuid_generate_v4(), relatedDebitorRelUuid, withDebitorNumberSuffix, true,     true,        false,            relatedBankAccountUuid, withDefaultPrefix;
     insert
-        into hs_office_debitor (uuid,   debitorRelUuid,        debitornumbersuffix,     billable, vatbusiness, vatreversecharge, refundbankaccountuuid,  defaultprefix)
-            values (uuid_generate_v4(), relatedDebitorRelUuid, withDebitorNumberSuffix, true,     true,        false,            relatedBankAccountUuid, withDefaultPrefix);
+        into hs_office_debitor (uuid,   debitorRelUuid,        partnerNumber,    debitornumbersuffix,     billable, vatbusiness, vatreversecharge, refundbankaccountuuid,  defaultprefix)
+            values (uuid_generate_v4(), relatedDebitorRelUuid, forPartnerNumber, withDebitorNumberSuffix, true,     true,        false,            relatedBankAccountUuid, withDefaultPrefix);
 end; $$;
 --//
 
@@ -54,9 +55,9 @@ end; $$;
 
 do language plpgsql $$
     begin
-        call createHsOfficeDebitorTestData(11, 'First GmbH', 'first contact', 'fir');
-        call createHsOfficeDebitorTestData(12, 'Second e.K.', 'second contact', 'sec');
-        call createHsOfficeDebitorTestData(13, 'Third OHG', 'third contact', 'thi');
+        call createHsOfficeDebitorTestData( 10001, 11, 'First GmbH', 'first contact', 'fir');
+        call createHsOfficeDebitorTestData( 10002, 12, 'Second e.K.', 'second contact', 'sec');
+        call createHsOfficeDebitorTestData( 10003, 13, 'Third OHG', 'third contact', 'thi');
     end;
 $$;
 --//

src/main/resources/db/changelog/6-hs-booking/610-booking-debitor/6100-hs-booking-debitor.sql

@@ -1,17 +1,13 @@
 --liquibase formatted sql
 
 -- ============================================================================
---changeset hs-booking-debitor-RESTRICTED-VIEW:1 endDelimiter:--//
+--changeset hs-booking-debitor-EXTRACTED-VIEW:1 endDelimiter:--//
 -- ----------------------------------------------------------------------------
 
 create view hs_booking_debitor_xv as
     select debitor.uuid,
            debitor.version,
-           (partner.partnerNumber::varchar || debitor.debitorNumberSuffix)::numeric as debitorNumber,
+           (debitor.partnerNumber::varchar || debitor.debitorNumberSuffix)::numeric as debitorNumber,
            debitor.defaultPrefix
-    from hs_office_debitor debitor
-     -- RBAC for debitor is sufficient, for faster access we are bypassing RBAC for the join tables
-    join hs_office_relation debitorRel on debitor.debitorReluUid=debitorRel.uuid
-    join hs_office_relation partnerRel on partnerRel.holderUuid=debitorRel.anchorUuid
-    join hs_office_partner partner on partner.partnerReluUid=partnerRel.uuid;
+    from hs_office_debitor debitor -- not from _rv for performance, nothing really secret here
 --//

src/test/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetRepositoryIntegrationTest.java

@@ -208,8 +208,8 @@ class HsHostingAssetRepositoryIntegrationTest extends ContextBasedTestWithCleanu
             // then
             exactlyTheseAssetsAreReturned(
                     result,
-                    "HsHostingAssetEntity(MANAGED_WEBSPACE, sec01, some Webspace, MANAGED_SERVER:vm1012, D-1000212:D-1000212 default project:separate ManagedWebspace)",
                     "HsHostingAssetEntity(MANAGED_WEBSPACE, fir01, some Webspace, MANAGED_SERVER:vm1011, D-1000111:D-1000111 default project:separate ManagedWebspace)",
+                    "HsHostingAssetEntity(MANAGED_WEBSPACE, sec01, some Webspace, MANAGED_SERVER:vm1012, D-1000212:D-1000212 default project:separate ManagedWebspace)",
                     "HsHostingAssetEntity(MANAGED_WEBSPACE, thi01, some Webspace, MANAGED_SERVER:vm1013, D-1000313:D-1000313 default project:separate ManagedWebspace)");
         }
 

src/test/java/net/hostsharing/hsadminng/hs/migration/ImportOfficeData.java

@@ -759,7 +759,7 @@ public class ImportOfficeData extends CsvDataImport {
 
                     final var debitor = HsOfficeDebitorEntity.builder()
                             .debitorNumberSuffix("00")
-                            .partner(partner)
+                            .partnerNumber(partner.getPartnerNumber())
                             .debitorRel(debitorRel)
                             .defaultPrefix(rec.getString("member_code").replace("hsh00-", ""))
                             .billable(rec.isEmpty("free") || rec.getString("free").equals("f"))

src/test/java/net/hostsharing/hsadminng/hs/office/debitor/HsOfficeDebitorEntityUnitTest.java

@@ -29,9 +29,7 @@ class HsOfficeDebitorEntityUnitTest {
                 .debitorNumberSuffix("67")
                 .debitorRel(givenDebitorRel)
                 .defaultPrefix("som")
-                .partner(HsOfficePartnerEntity.builder()
-                        .partnerNumber(12345)
-                        .build())
+                .partnerNumber(12345)
                 .build();
 
         final var result = given.toString();
@@ -44,9 +42,7 @@ class HsOfficeDebitorEntityUnitTest {
         final var given = HsOfficeDebitorEntity.builder()
                 .debitorRel(givenDebitorRel)
                 .debitorNumberSuffix("67")
-                .partner(HsOfficePartnerEntity.builder()
-                        .partnerNumber(12345)
-                        .build())
+                .partnerNumber(12345)
                 .build();
 
         final var result = given.toShortString();
@@ -59,9 +55,7 @@ class HsOfficeDebitorEntityUnitTest {
         final var given = HsOfficeDebitorEntity.builder()
                 .debitorRel(givenDebitorRel)
                 .debitorNumberSuffix("67")
-                .partner(HsOfficePartnerEntity.builder()
-                        .partnerNumber(12345)
-                        .build())
+                .partnerNumber(12345)
                 .build();
 
         final var result = given.getDebitorNumber();
@@ -69,25 +63,12 @@ class HsOfficeDebitorEntityUnitTest {
         assertThat(result).isEqualTo(1234567);
     }
 
-    @Test
-    void getDebitorNumberWithoutPartnerReturnsNull() {
-        final var given = HsOfficeDebitorEntity.builder()
-                .debitorRel(givenDebitorRel)
-                .debitorNumberSuffix("67")
-                .partner(null)
-                .build();
-
-        final var result = given.getDebitorNumber();
-
-        assertThat(result).isNull();
-    }
-
     @Test
     void getDebitorNumberWithoutPartnerNumberReturnsNull() {
         final var given = HsOfficeDebitorEntity.builder()
                 .debitorRel(givenDebitorRel)
                 .debitorNumberSuffix("67")
-                .partner(HsOfficePartnerEntity.builder().build())
+                .partnerNumber(null)
                 .build();
 
         final var result = given.getDebitorNumber();
@@ -100,9 +81,7 @@ class HsOfficeDebitorEntityUnitTest {
         final var given = HsOfficeDebitorEntity.builder()
                 .debitorRel(givenDebitorRel)
                 .debitorNumberSuffix(null)
-                .partner(HsOfficePartnerEntity.builder()
-                        .partnerNumber(12345)
-                        .build())
+                .partnerNumber(12345)
                 .build();
 
         final var result = given.getDebitorNumber();

src/test/java/net/hostsharing/hsadminng/hs/office/debitor/HsOfficeDebitorRepositoryIntegrationTest.java

@@ -485,9 +485,6 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
                 em.refresh(foundEntity);
                 Hibernate.initialize(foundEntity);
                 assertThat(foundEntity).isNotSameAs(saved);
-                if (withPartner) {
-                    assertThat(foundEntity.getPartner()).isNotNull();
-                }
                 assertThat(foundEntity.getDebitorRel()).extracting(HsOfficeRelationEntity::toString)
                         .isEqualTo(saved.getDebitorRel().toString());
             });

src/test/java/net/hostsharing/hsadminng/hs/office/debitor/TestHsOfficeDebitor.java

@@ -19,7 +19,7 @@ public class TestHsOfficeDebitor {
                     .anchor(HsOfficePersonEntity.builder().build())
                     .contact(TEST_CONTACT)
                     .build())
-            .partner(TEST_PARTNER)
+            .partnerNumber(TEST_PARTNER.getPartnerNumber())
             .defaultPrefix("abc")
             .build();
 }

src/test/java/net/hostsharing/hsadminng/hs/office/sepamandate/HsOfficeSepaMandateControllerAcceptanceTest.java

@@ -6,6 +6,7 @@ import io.restassured.http.ContentType;
 import net.hostsharing.hsadminng.HsadminNgApplication;
 import net.hostsharing.hsadminng.hs.office.bankaccount.HsOfficeBankAccountRepository;
 import net.hostsharing.hsadminng.hs.office.debitor.HsOfficeDebitorRepository;
+import net.hostsharing.hsadminng.hs.office.partner.HsOfficePartnerRepository;
 import net.hostsharing.hsadminng.rbac.test.ContextBasedTestWithCleanup;
 import net.hostsharing.hsadminng.rbac.test.JpaAttempt;
 import org.json.JSONException;
@@ -42,6 +43,9 @@ class HsOfficeSepaMandateControllerAcceptanceTest extends ContextBasedTestWithCl
     @Autowired
     HsOfficeSepaMandateRepository sepaMandateRepo;
 
+    @Autowired
+    HsOfficePartnerRepository partnerRepo;
+
     @Autowired
     HsOfficeDebitorRepository debitorRepo;
 
@@ -493,8 +497,9 @@ class HsOfficeSepaMandateControllerAcceptanceTest extends ContextBasedTestWithCl
         return jpaAttempt.transacted(() -> {
             context.define("superuser-alex@hostsharing.net");
             final var givenDebitor = debitorRepo.findDebitorByDebitorNumber(debitorNumber).get(0);
-            final var bankAccountHolder = ofNullable(givenDebitor.getPartner().getPartnerRel().getHolder().getTradeName())
-                    .orElse(givenDebitor.getPartner().getPartnerRel().getHolder().getFamilyName());
+            final var givenPartner = partnerRepo.findPartnerByDebitorUuid(givenDebitor.getUuid());
+            final var bankAccountHolder = ofNullable(givenPartner.getPartnerRel().getHolder().getTradeName())
+                    .orElse(givenPartner.getPartnerRel().getHolder().getFamilyName());
             final var givenBankAccount = bankAccountRepo.findByOptionalHolderLike(bankAccountHolder).get(0);
             final var newSepaMandate = HsOfficeSepaMandateEntity.builder()
                     .uuid(UUID.randomUUID())