Marc Sandlus
b0a28200f9
Co-authored-by: Marc O. Sandlus <marc.o.sandlus@hostsharing.net> Reviewed-on: #40 Reviewed-by: Timotheus Pokorra <timotheus.pokorra@hostsharing.net>
69 lines
2.8 KiB
PL/PgSQL
69 lines
2.8 KiB
PL/PgSQL
--liquibase formatted sql
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-- ============================================================================
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--changeset hs-office-coopshares-MAIN-TABLE:1 endDelimiter:--//
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-- ----------------------------------------------------------------------------
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CREATE TYPE HsOfficeCoopSharesTransactionType AS ENUM ('ADJUSTMENT', 'SUBSCRIPTION', 'CANCELLATION');
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CREATE CAST (character varying as HsOfficeCoopSharesTransactionType) WITH INOUT AS IMPLICIT;
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create table if not exists hs_office_coopsharestransaction
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(
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uuid uuid unique references RbacObject (uuid) initially deferred,
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version int not null default 0,
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membershipUuid uuid not null references hs_office_membership(uuid),
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transactionType HsOfficeCoopSharesTransactionType not null,
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valueDate date not null,
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shareCount integer not null,
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reference varchar(48) not null,
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adjustedShareTxUuid uuid unique REFERENCES hs_office_coopsharestransaction(uuid) DEFERRABLE INITIALLY DEFERRED,
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comment varchar(512)
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);
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--//
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-- ============================================================================
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--changeset hs-office-coopshares-BUSINESS-RULES:1 endDelimiter:--//
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-- ----------------------------------------------------------------------------
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alter table hs_office_coopsharestransaction
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add constraint hs_office_coopsharestransaction_reverse_entry_missing
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check ( transactionType = 'ADJUSTMENT' and adjustedShareTxUuid is not null
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or transactionType <> 'ADJUSTMENT' and adjustedShareTxUuid is null);
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--//
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-- ============================================================================
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--changeset hs-office-coopshares-SHARE-COUNT-CONSTRAINT:1 endDelimiter:--//
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-- ----------------------------------------------------------------------------
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create or replace function checkSharesByMembershipUuid(forMembershipUuid UUID, newShareCount integer)
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returns boolean
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language plpgsql as $$
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declare
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currentShareCount integer;
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totalShareCount integer;
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begin
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select sum(cst.shareCount)
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from hs_office_coopsharestransaction cst
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where cst.membershipUuid = forMembershipUuid
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into currentShareCount;
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totalShareCount := currentShareCount + newShareCount;
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if totalShareCount < 0 then
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raise exception '[400] coop shares transaction would result in a negative number of shares';
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end if;
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return true;
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end; $$;
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alter table hs_office_coopsharestransaction
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add constraint hs_office_coopshares_positive
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check ( checkSharesByMembershipUuid(membershipUuid, shareCount) );
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--//
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-- ============================================================================
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--changeset hs-office-coopshares-MAIN-TABLE-JOURNAL:1 endDelimiter:--//
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-- ----------------------------------------------------------------------------
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call create_journal('hs_office_coopsharestransaction');
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--//
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