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Restrict disabling foreign keys to MySQL when dropping objects. See http://www.heidisql.com/forum.php?t=7025#p16142

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This commit is contained in:
Ansgar Becker
2014-08-17 10:00:46 +00:00
parent be988526bd
commit 2a4a23a19b
1 changed files with 4 additions and 2 deletions
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6
source/main.pas
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@ -3004,6 +3004,7 @@ var
ObjectList: TDBObjectList; ObjectList: TDBObjectList;
Editor: TDBObjectEditor; Editor: TDBObjectEditor;
Conn: TDBConnection; Conn: TDBConnection;
DisableForeignKeys: Boolean;
begin begin
Conn := ActiveConnection; Conn := ActiveConnection;
@ -3058,7 +3059,8 @@ begin
if MessageDialog(f_('Drop %d object(s) in database "%s"?', [ObjectList.Count, Conn.Database]), msg, mtCriticalConfirmation, [mbok,mbcancel]) = mrOk then begin if MessageDialog(f_('Drop %d object(s) in database "%s"?', [ObjectList.Count, Conn.Database]), msg, mtCriticalConfirmation, [mbok,mbcancel]) = mrOk then begin
try try
// Disable foreign key checks to avoid SQL errors // Disable foreign key checks to avoid SQL errors
if Conn.ServerVersionInt >= 40014 then DisableForeignKeys := (Conn.Parameters.NetTypeGroup = ngMySQL) and (Conn.ServerVersionInt >= 40014);
if DisableForeignKeys then
Conn.Query('SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0'); Conn.Query('SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0');
// Compose and run DROP [TABLE|VIEW|...] queries // Compose and run DROP [TABLE|VIEW|...] queries
Editor := ActiveObjectEditor; Editor := ActiveObjectEditor;
@ -3067,7 +3069,7 @@ begin
if Assigned(Editor) and Editor.Modified and Editor.DBObject.IsSameAs(DBObject) then if Assigned(Editor) and Editor.Modified and Editor.DBObject.IsSameAs(DBObject) then
Editor.Modified := False; Editor.Modified := False;
end; end;
if Conn.ServerVersionInt >= 40014 then if DisableForeignKeys then
Conn.Query('SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS'); Conn.Query('SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS');
// Refresh ListTables + dbtree so the dropped tables are gone: // Refresh ListTables + dbtree so the dropped tables are gone:
Conn.ClearDbObjects(ActiveDatabase); Conn.ClearDbObjects(ActiveDatabase);