For add/rename/duplicate DB: check new name input for an existing db name and disable OK button if it does.

1 files changed, 3 insertions, 3 deletions

diff --git a/Source/TableDocument.m b/Source/TableDocument.m
index a5dc87b4..49d931c3 100644
--- a/Source/TableDocument.m
+++ b/Source/TableDocument.m
@@ -3940,13 +3940,13 @@
 	id object = [notification object];
 
 	if (object == databaseNameField) {
-		[addDatabaseButton setEnabled:([[databaseNameField stringValue] length] > 0)]; 
+		[addDatabaseButton setEnabled:([[databaseNameField stringValue] length] > 0 && ![allDatabases containsObject: [databaseNameField stringValue]])]; 
 	}
 	else if (object == databaseCopyNameField) {
-		[copyDatabaseButton setEnabled:([[databaseCopyNameField stringValue] length] > 0)]; 
+		[copyDatabaseButton setEnabled:([[databaseCopyNameField stringValue] length] > 0 && ![allDatabases containsObject: [databaseCopyNameField stringValue]])]; 
 	}
 	else if (object == databaseRenameNameField) {
-		[renameDatabaseButton setEnabled:([[databaseRenameNameField stringValue] length] > 0)]; 
+		[renameDatabaseButton setEnabled:([[databaseRenameNameField stringValue] length] > 0 && ![allDatabases containsObject: [databaseRenameNameField stringValue]])]; 
 	}
 	else if (object == saveConnectionEncryptString) {
 		[saveConnectionEncryptString setStringValue:[saveConnectionEncryptString stringValue]];