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+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+# May you do good and not evil.
+# May you find forgiveness for yourself and forgive others.
+# May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests creating and dropping triggers, and interaction thereof
+# with the database COMMIT/ROLLBACK logic.
+#
+# 1. CREATE and DROP TRIGGER tests
+# trig-1.1: Error if table does not exist
+# trig-1.2: Error if trigger already exists
+# trig-1.3: Created triggers are deleted if the transaction is rolled back
+# trig-1.4: DROP TRIGGER removes trigger
+# trig-1.5: Dropped triggers are restored if the transaction is rolled back
+# trig-1.6: Error if dropped trigger doesn't exist
+# trig-1.7: Dropping the table automatically drops all triggers
+# trig-1.8: A trigger created on a TEMP table is not inserted into sqlite_master
+# trig-1.9: Ensure that we cannot create a trigger on sqlite_master
+# trig-1.10:
+# trig-1.11:
+# trig-1.12: Ensure that INSTEAD OF triggers cannot be created on tables
+# trig-1.13: Ensure that AFTER triggers cannot be created on views
+# trig-1.14: Ensure that BEFORE triggers cannot be created on views
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_test trigger1-1.1.2 {
+ catchsql {
+ CREATE TRIGGER trig UPDATE ON no_such_table BEGIN
+ SELECT * from sqlite_master;
+ END;
+ }
+} {1 {no such table: no_such_table}}
+do_test trigger1-1.1.2 {
+ catchsql {
+ CREATE TEMP TRIGGER trig UPDATE ON no_such_table BEGIN
+ SELECT * from sqlite_master;
+ END;
+ }
+} {1 {no such table: no_such_table}}
+
+execsql {
+ CREATE TABLE t1(a);
+}
+execsql {
+ CREATE TRIGGER tr1 INSERT ON t1 BEGIN
+ INSERT INTO t1 values(1);
+ END;
+}
+do_test trigger1-1.2 {
+ catchsql {
+ CREATE TRIGGER tr1 DELETE ON t1 BEGIN
+ SELECT * FROM sqlite_master;
+ END
+ }
+} {1 {trigger tr1 already exists}}
+
+do_test trigger1-1.3 {
+ catchsql {
+ BEGIN;
+ CREATE TRIGGER tr2 INSERT ON t1 BEGIN
+ SELECT * from sqlite_master; END;
+ ROLLBACK;
+ CREATE TRIGGER tr2 INSERT ON t1 BEGIN
+ SELECT * from sqlite_master; END;
+ }
+} {0 {}}
+
+do_test trigger1-1.4 {
+ catchsql {
+ DROP TRIGGER tr1;
+ CREATE TRIGGER tr1 DELETE ON t1 BEGIN
+ SELECT * FROM sqlite_master;
+ END
+ }
+} {0 {}}
+
+do_test trigger1-1.5 {
+ execsql {
+ BEGIN;
+ DROP TRIGGER tr2;
+ ROLLBACK;
+ DROP TRIGGER tr2;
+ }
+} {}
+
+do_test trigger1-1.6 {
+ catchsql {
+ DROP TRIGGER biggles;
+ }
+} {1 {no such trigger: biggles}}
+
+do_test trigger1-1.7 {
+ catchsql {
+ DROP TABLE t1;
+ DROP TRIGGER tr1;
+ }
+} {1 {no such trigger: tr1}}
+
+execsql {
+ CREATE TEMP TABLE temp_table(a);
+}
+do_test trigger1-1.8 {
+ execsql {
+ CREATE TRIGGER temp_trig UPDATE ON temp_table BEGIN
+ SELECT * from sqlite_master;
+ END;
+ SELECT count(*) FROM sqlite_master WHERE name = 'temp_trig';
+ }
+} {0}
+
+do_test trigger1-1.9 {
+ catchsql {
+ CREATE TRIGGER tr1 AFTER UPDATE ON sqlite_master BEGIN
+ SELECT * FROM sqlite_master;
+ END;
+ }
+} {1 {cannot create trigger on system table}}
+
+# Check to make sure that a DELETE statement within the body of
+# a trigger does not mess up the DELETE that caused the trigger to
+# run in the first place.
+#
+do_test trigger1-1.10 {
+ execsql {
+ create table t1(a,b);
+ insert into t1 values(1,'a');
+ insert into t1 values(2,'b');
+ insert into t1 values(3,'c');
+ insert into t1 values(4,'d');
+ create trigger r1 after delete on t1 for each row begin
+ delete from t1 WHERE a=old.a+2;
+ end;
+ delete from t1 where a in (1,3);
+ select * from t1;
+ drop table t1;
+ }
+} {2 b 4 d}
+do_test trigger1-1.11 {
+ execsql {
+ create table t1(a,b);
+ insert into t1 values(1,'a');
+ insert into t1 values(2,'b');
+ insert into t1 values(3,'c');
+ insert into t1 values(4,'d');
+ create trigger r1 after update on t1 for each row begin
+ delete from t1 WHERE a=old.a+2;
+ end;
+ update t1 set b='x-' || b where a in (1,3);
+ select * from t1;
+ drop table t1;
+ }
+} {1 x-a 2 b 4 d}
+
+# Ensure that we cannot create INSTEAD OF triggers on tables
+do_test trigger1-1.12 {
+ catchsql {
+ create table t1(a,b);
+ create trigger t1t instead of update on t1 for each row begin
+ delete from t1 WHERE a=old.a+2;
+ end;
+ }
+} {1 {cannot create INSTEAD OF trigger on table: t1}}
+# Ensure that we cannot create BEFORE triggers on views
+do_test trigger1-1.13 {
+ catchsql {
+ create view v1 as select * from t1;
+ create trigger v1t before update on v1 for each row begin
+ delete from t1 WHERE a=old.a+2;
+ end;
+ }
+} {1 {cannot create BEFORE trigger on view: v1}}
+# Ensure that we cannot create AFTER triggers on views
+do_test trigger1-1.14 {
+ catchsql {
+ drop view v1;
+ create view v1 as select * from t1;
+ create trigger v1t AFTER update on v1 for each row begin
+ delete from t1 WHERE a=old.a+2;
+ end;
+ }
+} {1 {cannot create AFTER trigger on view: v1}}
+
+# Check for memory leaks in the trigger parser
+#
+do_test trigger1-2.1 {
+ catchsql {
+ CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+ SELECT * FROM; -- Syntax error
+ END;
+ }
+} {1 {near ";": syntax error}}
+do_test trigger1-2.2 {
+ catchsql {
+ CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+ SELECT * FROM t1;
+ SELECT * FROM; -- Syntax error
+ END;
+ }
+} {1 {near ";": syntax error}}
+
+# Create a trigger that refers to a table that might not exist.
+#
+do_test trigger1-3.1 {
+ execsql {
+ CREATE TEMP TABLE t2(x,y);
+ }
+ catchsql {
+ CREATE TRIGGER r1 AFTER INSERT ON t1 BEGIN
+ INSERT INTO t2 VALUES(NEW.a,NEW.b);
+ END;
+ }
+} {0 {}}
+do_test trigger-3.2 {
+ catchsql {
+ INSERT INTO t1 VALUES(1,2);
+ SELECT * FROM t2;
+ }
+} {1 {no such table: main.t2}}
+do_test trigger-3.3 {
+ db close
+ set rc [catch {sqlite db test.db} err]
+ if {$rc} {lappend rc $err}
+ set rc
+} {0}
+do_test trigger-3.4 {
+ catchsql {
+ INSERT INTO t1 VALUES(1,2);
+ SELECT * FROM t2;
+ }
+} {1 {no such table: main.t2}}
+do_test trigger-3.5 {
+ catchsql {
+ CREATE TEMP TABLE t2(x,y);
+ INSERT INTO t1 VALUES(1,2);
+ SELECT * FROM t2;
+ }
+} {1 {no such table: main.t2}}
+do_test trigger-3.6 {
+ catchsql {
+ DROP TRIGGER r1;
+ CREATE TEMP TRIGGER r1 AFTER INSERT ON t1 BEGIN
+ INSERT INTO t2 VALUES(NEW.a,NEW.b);
+ END;
+ INSERT INTO t1 VALUES(1,2);
+ SELECT * FROM t2;
+ }
+} {0 {1 2}}
+do_test trigger-3.7 {
+ execsql {
+ DROP TABLE t2;
+ CREATE TABLE t2(x,y);
+ SELECT * FROM t2;
+ }
+} {}
+do_test trigger-3.8 {
+ execsql {
+ INSERT INTO t1 VALUES(3,4);
+ SELECT * FROM t1 UNION ALL SELECT * FROM t2;
+ }
+} {1 2 3 4 3 4}
+do_test trigger-3.9 {
+ db close
+ sqlite db test.db
+ execsql {
+ INSERT INTO t1 VALUES(5,6);
+ SELECT * FROM t1 UNION ALL SELECT * FROM t2;
+ }
+} {1 2 3 4 5 6 3 4}
+
+do_test trigger-4.1 {
+ execsql {
+ CREATE TEMP TRIGGER r1 BEFORE INSERT ON t1 BEGIN
+ INSERT INTO t2 VALUES(NEW.a,NEW.b);
+ END;
+ INSERT INTO t1 VALUES(7,8);
+ SELECT * FROM t2;
+ }
+} {3 4 7 8}
+do_test trigger-4.2 {
+ sqlite db2 test.db
+ execsql {
+ INSERT INTO t1 VALUES(9,10);
+ } db2;
+ db2 close
+ execsql {
+ SELECT * FROM t2;
+ }
+} {3 4 7 8}
+do_test trigger-4.3 {
+ execsql {
+ DROP TABLE t1;
+ SELECT * FROM t2;
+ };
+} {3 4 7 8}
+do_test trigger-4.4 {
+ db close
+ sqlite db test.db
+ execsql {
+ SELECT * FROM t2;
+ };
+} {3 4 7 8}
+
+integrity_check trigger-5.1
+
+# Create a trigger with the same name as a table. Make sure the
+# trigger works. Then drop the trigger. Make sure the table is
+# still there.
+#
+do_test trigger-6.1 {
+ execsql {SELECT type, name FROM sqlite_master}
+} {view v1 table t2}
+do_test trigger-6.2 {
+ execsql {
+ CREATE TRIGGER t2 BEFORE DELETE ON t2 BEGIN
+ SELECT RAISE(ABORT,'deletes are not allows');
+ END;
+ SELECT type, name FROM sqlite_master;
+ }
+} {view v1 table t2 trigger t2}
+do_test trigger-6.3 {
+ catchsql {DELETE FROM t2}
+} {1 {deletes are not allows}}
+do_test trigger-6.4 {
+ execsql {SELECT * FROM t2}
+} {3 4 7 8}
+do_test trigger-6.5 {
+ db close
+ sqlite db test.db
+ execsql {SELECT type, name FROM sqlite_master}
+} {view v1 table t2 trigger t2}
+do_test trigger-6.6 {
+ execsql {
+ DROP TRIGGER t2;
+ SELECT type, name FROM sqlite_master;
+ }
+} {view v1 table t2}
+do_test trigger-6.7 {
+ execsql {SELECT * FROM t2}
+} {3 4 7 8}
+do_test trigger-6.8 {
+ db close
+ sqlite db test.db
+ execsql {SELECT * FROM t2}
+} {3 4 7 8}
+
+integrity_check trigger-7.1
+
+# Check to make sure the name of a trigger can be quoted so that keywords
+# can be used as trigger names. Ticket #468
+#
+do_test trigger-8.1 {
+ execsql {
+ CREATE TRIGGER 'trigger' AFTER INSERT ON t2 BEGIN SELECT 1; END;
+ SELECT name FROM sqlite_master WHERE type='trigger';
+ }
+} {trigger}
+do_test trigger-8.2 {
+ execsql {
+ DROP TRIGGER 'trigger';
+ SELECT name FROM sqlite_master WHERE type='trigger';
+ }
+} {}
+do_test trigger-8.3 {
+ execsql {
+ CREATE TRIGGER "trigger" AFTER INSERT ON t2 BEGIN SELECT 1; END;
+ SELECT name FROM sqlite_master WHERE type='trigger';
+ }
+} {trigger}
+do_test trigger-8.4 {
+ execsql {
+ DROP TRIGGER "trigger";
+ SELECT name FROM sqlite_master WHERE type='trigger';
+ }
+} {}
+do_test trigger-8.5 {
+ execsql {
+ CREATE TRIGGER [trigger] AFTER INSERT ON t2 BEGIN SELECT 1; END;
+ SELECT name FROM sqlite_master WHERE type='trigger';
+ }
+} {trigger}
+do_test trigger-8.6 {
+ execsql {
+ DROP TRIGGER [trigger];
+ SELECT name FROM sqlite_master WHERE type='trigger';
+ }
+} {}
+
+# Make sure REPLACE works inside of triggers.
+#
+do_test trigger-9.1 {
+ execsql {
+ CREATE TABLE t3(a,b);
+ CREATE TABLE t4(x UNIQUE, b);
+ CREATE TRIGGER r34 AFTER INSERT ON t3 BEGIN
+ REPLACE INTO t4 VALUES(new.a,new.b);
+ END;
+ INSERT INTO t3 VALUES(1,2);
+ SELECT * FROM t3 UNION ALL SELECT 99, 99 UNION ALL SELECT * FROM t4;
+ }
+} {1 2 99 99 1 2}
+do_test trigger-9.2 {
+ execsql {
+ INSERT INTO t3 VALUES(1,3);
+ SELECT * FROM t3 UNION ALL SELECT 99, 99 UNION ALL SELECT * FROM t4;
+ }
+} {1 2 1 3 99 99 1 3}
+
+execsql {
+ DROP TABLE t2;
+ DROP TABLE t3;
+ DROP TABLE t4;
+}
+
+# Ticket #764. At one stage TEMP triggers would fail to re-install when the
+# schema was reloaded. The following tests ensure that TEMP triggers are
+# correctly re-installed.
+#
+# Also verify that references within trigger programs are resolved at
+# statement compile time, not trigger installation time. This means, for
+# example, that you can drop and re-create tables referenced by triggers.
+do_test trigger-10.0 {
+ file delete -force test2.db
+ file delete -force test2.db-journal
+ sqlite db2 test2.db
+ execsql {CREATE TABLE t3(a, b, c);} db2
+ db2 close
+ execsql {
+ ATTACH 'test2.db' AS aux;
+ }
+} {}
+do_test trigger-10.1 {
+ execsql {
+ CREATE TABLE t1(a, b, c);
+ CREATE temp TABLE t2(a, b, c);
+ CREATE TABLE insert_log(db, a, b, c);
+ }
+} {}
+do_test trigger-10.2 {
+ execsql {
+ CREATE TEMP TRIGGER trig1 AFTER INSERT ON t1 BEGIN
+ INSERT INTO insert_log VALUES('main', new.a, new.b, new.c);
+ END;
+ CREATE TEMP TRIGGER trig2 AFTER INSERT ON t2 BEGIN
+ INSERT INTO insert_log VALUES('temp', new.a, new.b, new.c);
+ END;
+ CREATE TEMP TRIGGER trig3 AFTER INSERT ON t3 BEGIN
+ INSERT INTO insert_log VALUES('aux', new.a, new.b, new.c);
+ END;
+ }
+} {}
+do_test trigger-10.3 {
+ execsql {
+ INSERT INTO t1 VALUES(1, 2, 3);
+ INSERT INTO t2 VALUES(4, 5, 6);
+ INSERT INTO t3 VALUES(7, 8, 9);
+ }
+} {}
+do_test trigger-10.4 {
+ execsql {
+ SELECT * FROM insert_log;
+ }
+} {main 1 2 3 temp 4 5 6 aux 7 8 9}
+do_test trigger-10.5 {
+ execsql {
+ BEGIN;
+ INSERT INTO t1 VALUES(1, 2, 3);
+ INSERT INTO t2 VALUES(4, 5, 6);
+ INSERT INTO t3 VALUES(7, 8, 9);
+ ROLLBACK;
+ }
+} {}
+do_test trigger-10.6 {
+ execsql {
+ SELECT * FROM insert_log;
+ }
+} {main 1 2 3 temp 4 5 6 aux 7 8 9}
+do_test trigger-10.7 {
+ execsql {
+ DELETE FROM insert_log;
+ INSERT INTO t1 VALUES(11, 12, 13);
+ INSERT INTO t2 VALUES(14, 15, 16);
+ INSERT INTO t3 VALUES(17, 18, 19);
+ }
+} {}
+do_test trigger-10.8 {
+ execsql {
+ SELECT * FROM insert_log;
+ }
+} {main 11 12 13 temp 14 15 16 aux 17 18 19}
+do_test trigger-10.8 {
+# Drop and re-create the insert_log table in a different database. Note
+# that we can change the column names because the trigger programs don't
+# use them explicitly.
+ execsql {
+ DROP TABLE insert_log;
+ CREATE temp TABLE insert_log(db, d, e, f);
+ }
+} {}
+do_test trigger-10.10 {
+ execsql {
+ INSERT INTO t1 VALUES(21, 22, 23);
+ INSERT INTO t2 VALUES(24, 25, 26);
+ INSERT INTO t3 VALUES(27, 28, 29);
+ }
+} {}
+do_test trigger-10.11 {
+ execsql {
+ SELECT * FROM insert_log;
+ }
+} {main 21 22 23 temp 24 25 26 aux 27 28 29}
+
+finish_test
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-12 06:26:43 +0000