# 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