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174 lines
4.2 KiB
Plaintext
174 lines
4.2 KiB
Plaintext
# 2020 July 14
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set testprefix triggerupfrom
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do_execsql_test 1.0 {
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CREATE TABLE map(k, v);
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INSERT INTO map VALUES(1, 'one'), (2, 'two'), (3, 'three'), (4, 'four');
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CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
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CREATE TRIGGER tr AFTER INSERT ON t1 BEGIN
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UPDATE t1 SET c = v FROM map WHERE k=new.a AND a=new.a;
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END;
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}
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do_execsql_test 1.1 {
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INSERT INTO t1(a) VALUES(1);
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}
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do_execsql_test 1.2 {
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SELECT a, c FROM t1 ORDER BY a;
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} {1 one}
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do_execsql_test 1.3 {
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INSERT INTO t1(a) VALUES(2), (3), (4), (5);
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SELECT a, c FROM t1 ORDER BY a;
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} {1 one 2 two 3 three 4 four 5 {}}
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forcedelete test.db2
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do_execsql_test 2.0 {
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ATTACH 'test.db2' AS aux;
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CREATE TABLE aux.t3(x, y);
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INSERT INTO aux.t3 VALUES('x', 'y');
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}
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do_catchsql_test 2.1 {
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CREATE TRIGGER tr2 AFTER INSERT ON t1 BEGIN
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UPDATE t1 SET b = y FROM aux.t3 WHERE k=new.a;
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END;
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} {1 {trigger tr2 cannot reference objects in database aux}}
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do_execsql_test 2.2 {
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CREATE TEMP TRIGGER tr2 AFTER INSERT ON t1 BEGIN
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UPDATE t1 SET b = y FROM aux.t3 WHERE a=new.a;
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END;
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INSERT INTO t1(a) VALUES(10), (20);
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SELECT * FROM t1;
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} {
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1 {} one
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2 {} two
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3 {} three
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4 {} four
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5 {} {}
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10 y {}
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20 y {}
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}
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do_execsql_test 2.3 {
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CREATE TABLE link(f, t);
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INSERT INTO link VALUES(5, 2), (20, 10), (2, 1);
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CREATE TRIGGER tr3 BEFORE DELETE ON t1 BEGIN
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UPDATE t1 SET b=coalesce(old.b,old.c) FROM main.link WHERE a=t AND old.a=f;
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END;
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DELETE FROM t1 WHERE a=2;
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SELECT * FROM t1;
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} {
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1 two one
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3 {} three
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4 {} four
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5 {} {}
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10 y {}
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20 y {}
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}
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db close
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sqlite3 db ""
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do_catchsql_test 2.4 {
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ATTACH 'test.db' AS yyy;
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SELECT * FROM t1;
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} {1 {malformed database schema (tr3) - trigger tr3 cannot reference objects in database main}}
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#-------------------------------------------------------------------------
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reset_db
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forcedelete test.db2
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do_execsql_test 3.0 {
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CREATE TABLE mmm(x, y);
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INSERT INTO mmm VALUES(1, 'one');
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INSERT INTO mmm VALUES(2, 'two');
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INSERT INTO mmm VALUES(3, 'three');
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ATTACH 'test.db2' AS aux;
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CREATE TABLE aux.t1(a, b);
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CREATE TABLE aux.mmm(x, y);
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INSERT INTO aux.mmm VALUES(1, 'ONE');
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INSERT INTO aux.mmm VALUES(2, 'TWO');
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INSERT INTO aux.mmm VALUES(3, 'THREE');
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CREATE TRIGGER aux.ttt AFTER INSERT ON t1 BEGIN
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UPDATE t1 SET b=y FROM mmm WHERE x=new.a AND a=new.a;
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END;
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INSERT INTO t1(a) VALUES (2);
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SELECT * FROM t1;
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} {2 TWO}
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#-------------------------------------------------------------------------
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# Test that INSTEAD OF UPDATE triggers on views work with UPDATE...FROM
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# statements. Including, if the library is built with ENABLE_HIDDEN_COLUMNS,
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# that they work correctly on views with hidden columns.
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#
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reset_db
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do_execsql_test 4.0 {
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CREATE TABLE t1(k, a, b);
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INSERT INTO t1 VALUES('a', 1, 'one');
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INSERT INTO t1 VALUES('b', 2, 'two');
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INSERT INTO t1 VALUES('c', 3, 'three');
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INSERT INTO t1 VALUES('d', 4, 'four');
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CREATE TABLE log(x);
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CREATE VIEW v1 AS SELECT k, a, b AS __hidden__b FROM t1;
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CREATE TRIGGER tr1 INSTEAD OF UPDATE ON v1 BEGIN
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INSERT INTO log VALUES(
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'('||old.a||','||old.__hidden__b||')->('||new.a||','||new.__hidden__b||')'
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);
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END;
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}
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ifcapable hiddencolumns {
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do_execsql_test 4.1-hc-enabled {
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SELECT * FROM v1
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} {a 1 b 2 c 3 d 4}
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} else {
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do_execsql_test 4.1-hc-disabled {
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SELECT * FROM v1
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} {a 1 one b 2 two c 3 three d 4 four}
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}
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do_execsql_test 4.2 {
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UPDATE v1 SET a='xyz' WHERE k IN ('a', 'c');
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SELECT * FROM log;
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DELETE FROM log;
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} {
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(1,one)->(xyz,one)
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(3,three)->(xyz,three)
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}
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do_execsql_test 4.3 {
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CREATE TABLE map(k, v);
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INSERT INTO map VALUES('b', 'twelve');
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INSERT INTO map VALUES('d', 'fourteen');
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UPDATE v1 SET a=map.v FROM map WHERE v1.k=map.k;
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SELECT * FROM log;
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DELETE FROM log;
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} {
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(2,two)->(twelve,two)
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(4,four)->(fourteen,four)
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}
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finish_test
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