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94 lines
2.7 KiB
Python
94 lines
2.7 KiB
Python
#coding:utf-8
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#
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# id: functional.arno.derived_tables.derived_tables_22
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# title: Derived table outer reference (triggers)
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# decription: NEW/OLD context variables should be available inside the derived table.
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# tracker_id:
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# min_versions: []
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# versions: 2.0
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# qmid: functional.arno.derived_tables.derived_tables_22
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import pytest
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from firebird.qa import db_factory, isql_act, Action
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# version: 2.0
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# resources: None
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substitutions_1 = []
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init_script_1 = """CREATE TABLE TABLEA
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(
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ID INTEGER NOT NULL,
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DESCRIPTION VARCHAR(50),
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PARENTID INTEGER,
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CONSTRAINT PK_TABLEA PRIMARY KEY (ID),
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CONSTRAINT FK_TABLEA_TABLEA
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FOREIGN KEY (PARENTID) REFERENCES TABLEA (ID)
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ON DELETE NO ACTION ON UPDATE CASCADE
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);
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COMMIT;
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SET TERM ^^ ;
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CREATE TRIGGER TABLEA_BI FOR TABLEA ACTIVE BEFORE INSERT POSITION 0 AS
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DECLARE PREV_ID INTEGER;
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BEGIN
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PREV_ID = NULL;
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SELECT ID FROM (SELECT MAX(a.ID) AS ID FROM TABLEA a WHERE a.ID < NEW.ID) INTO :PREV_ID;
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NEW.PARENTID = PREV_ID;
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END
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^^
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SET TERM ; ^^
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SET TERM ^^ ;
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CREATE TRIGGER TABLEA_BU FOR TABLEA ACTIVE BEFORE UPDATE POSITION 0 AS
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DECLARE PREV_ID INTEGER;
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BEGIN
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PREV_ID = NULL;
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SELECT ID FROM (SELECT MAX(a.ID) AS ID FROM TABLEA a WHERE a.ID < OLD.ID) INTO :PREV_ID;
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SELECT ID FROM (SELECT MAX(a.ID) AS ID FROM TABLEA a WHERE a.ID < NEW.ID) INTO :PREV_ID;
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NEW.PARENTID = PREV_ID;
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END
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^^
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SET TERM ; ^^
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SET TERM ^^ ;
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CREATE TRIGGER TABLEA_BD FOR TABLEA ACTIVE BEFORE DELETE POSITION 0 AS
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DECLARE PREV_ID INTEGER;
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BEGIN
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PREV_ID = NULL;
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SELECT ID FROM (SELECT MAX(a.ID) AS ID FROM TABLEA a WHERE a.ID < OLD.ID) INTO :PREV_ID;
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END
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^^
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SET TERM ; ^^
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COMMIT;"""
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db_1 = db_factory(sql_dialect=3, init=init_script_1)
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test_script_1 = """INSERT INTO TABLEA (ID, DESCRIPTION) VALUES (1, 'Blue');
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INSERT INTO TABLEA (ID, DESCRIPTION) VALUES (2, 'Red');
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INSERT INTO TABLEA (ID, DESCRIPTION) VALUES (4, 'Green');
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INSERT INTO TABLEA (ID, DESCRIPTION) VALUES (8, 'Yellow');
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COMMIT;
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SELECT * FROM TABLEA;
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"""
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act_1 = isql_act('db_1', test_script_1, substitutions=substitutions_1)
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expected_stdout_1 = """ ID DESCRIPTION PARENTID
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============ ================================================== ============
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1 Blue <null>
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2 Red 1
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4 Green 2
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8 Yellow 4"""
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@pytest.mark.version('>=2.0')
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def test_derived_tables_22_1(act_1: Action):
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act_1.expected_stdout = expected_stdout_1
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act_1.execute()
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assert act_1.clean_expected_stdout == act_1.clean_stdout
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