# 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 the triggers of views.

 #

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 # If either views or triggers are disabled in this build, omit this file.

 ifcapable {!trigger || !view} {

   finish_test

   return

 }

 do_test trigger4-1.1 {

   execsql {

     create table test1(id integer primary key,a);

     create table test2(id integer,b);

     create view test as

       select test1.id as id,a as a,b as b

       from test1 join test2 on test2.id =  test1.id;

     create trigger I_test instead of insert on test

       begin

         insert into test1 (id,a) values (NEW.id,NEW.a);

         insert into test2 (id,b) values (NEW.id,NEW.b);

       end;

     insert into test values(1,2,3);

     select * from test1;

   }

 } {1 2}

 do_test trigger4-1.2 {

   execsql {

     select * from test2;

   }

 } {1 3}

 do_test trigger4-1.3 {

   db close

   sqlite3 db test.db

   execsql {

     insert into test values(4,5,6);

     select * from test1;

   }

 } {1 2 4 5}

 do_test trigger4-1.4 {

   execsql {

     select * from test2;

   }

 } {1 3 4 6}

 do_test trigger4-2.1 {

   execsql {

     create trigger U_test instead of update on test

       begin

         update test1 set a=NEW.a where id=NEW.id;

         update test2 set b=NEW.b where id=NEW.id;

       end;

     update test set a=22 where id=1;

     select * from test1;

   }

 } {1 22 4 5}

 do_test trigger4-2.2 {

   execsql {

     select * from test2;

   }

 } {1 3 4 6}

 do_test trigger4-2.3 {

   db close

   sqlite3 db test.db

   execsql {

     update test set b=66 where id=4;

     select * from test1;

   }

 } {1 22 4 5}

 do_test trigger4-2.4 {

   execsql {

     select * from test2;

   }

 } {1 3 4 66}

 do_test trigger4-3.1 {

   catchsql {

     drop table test2;

     insert into test values(7,8,9);

   }

 } {1 {no such table: main.test2}}

 do_test trigger4-3.2 {

   db close

   sqlite3 db test.db

   catchsql {

     insert into test values(7,8,9);

   }

 } {1 {no such table: main.test2}}

 do_test trigger4-3.3 {

   catchsql {

     update test set a=222 where id=1;

   }

 } {1 {no such table: main.test2}}

 do_test trigger4-3.4 {

   execsql {

     select * from test1;

   }

 } {1 22 4 5}

 do_test trigger4-3.5 {

   execsql {

     create table test2(id,b);

     insert into test values(7,8,9);

     select * from test1;

   }

 } {1 22 4 5 7 8}

 do_test trigger4-3.6 {

   execsql {

     select * from test2;

   }

 } {7 9}

 do_test trigger4-3.7 {

   db close

   sqlite3 db test.db

   execsql {

     update test set b=99 where id=7;

     select * from test2;

   }

 } {7 99}

 do_test trigger4-4.1 {

     db close

     file delete -force trigtest.db

     file delete -force trigtest.db-journal

     sqlite3 db trigtest.db

     catchsql {drop table tbl; drop view vw}

     execsql {

 	create table tbl(a integer primary key, b integer);

 	create view vw as select * from tbl;

 	create trigger t_del_tbl instead of delete on vw for each row begin

 	  delete from tbl where a = old.a;

 	end;

 	create trigger t_upd_tbl instead of update on vw for each row begin

 	  update tbl set a=new.a, b=new.b where a = old.a;

 	end;

 	create trigger t_ins_tbl instead of insert on vw for each row begin

 	  insert into tbl values (new.a,new.b);

 	end;

 	insert into tbl values(101,1001);

 	insert into tbl values(102,1002);

 	insert into tbl select a+2, b+2 from tbl;

 	insert into tbl select a+4, b+4 from tbl;

 	insert into tbl select a+8, b+8 from tbl;

 	insert into tbl select a+16, b+16 from tbl;

 	insert into tbl select a+32, b+32 from tbl;

 	insert into tbl select a+64, b+64 from tbl;

 	select count(*) from vw;

     }

 } {128}

 do_test trigger4-4.2 {

     execsql {select a, b from vw where a<103 or a>226 order by a}

 } {101 1001 102 1002 227 1127 228 1128}

 #test delete from view

 do_test trigger4-5.1 {

     catchsql {delete from vw where a>101 and a<2000}

 } {0 {}}

 do_test trigger4-5.2 {

     execsql {select * from vw}

 } {101 1001}

 #test insert into view

 do_test trigger4-6.1 {

     catchsql {

 	insert into vw values(102,1002);

 	insert into vw select a+2, b+2 from vw;

 	insert into vw select a+4, b+4 from vw;

 	insert into vw select a+8, b+8 from vw;

 	insert into vw select a+16, b+16 from vw;

 	insert into vw select a+32, b+32 from vw;

 	insert into vw select a+64, b+64 from vw;

     }

 } {0 {}}

 do_test trigger4-6.2 {

     execsql {select count(*) from vw}

 } {128}

 #test update of view

 do_test trigger4-7.1 {

     catchsql {update vw set b=b+1000 where a>101 and a<2000}

 } {0 {}}

 do_test trigger4-7.2 {

     execsql {select a, b from vw where a<=102 or a>=227 order by a}

 } {101 1001 102 2002 227 2127 228 2128}

 integrity_check trigger4-99.9

 db close

 file delete -force trigtest.db trigtest.db-journal

 finish_test