From f0830d96692e40eaa45bd5b9ae1322a391d905a7 Mon Sep 17 00:00:00 2001 From: rowanbeentje Date: Thu, 5 Mar 2009 01:02:53 +0000 Subject: Improves the table structure view to only save a row when properly deselected, and automatically reselecting the row for re-edit on error - resolves Issue #74. --- Source/TableSource.m | 107 +++++++++++++++++++++++++++++++++------------------ 1 file changed, 69 insertions(+), 38 deletions(-) (limited to 'Source/TableSource.m') diff --git a/Source/TableSource.m b/Source/TableSource.m index 7d642bf2..c66f5972 100644 --- a/Source/TableSource.m +++ b/Source/TableSource.m @@ -43,6 +43,9 @@ loads aTable, put it in an array, update the tableViewColumns and reload the tab id extra; int i; + // Check whether a save of the current row is required. + if ( ![self saveRowOnDeselect] ) return; + selectedTable = aTable; [tableSourceView deselectAll:self]; @@ -224,21 +227,18 @@ adds an empty row to the tableSource-array and goes into edit mode */ - (IBAction)addField:(id)sender { -/* - if ( ![self addRowToDB] ) - return; -*/ - if ( ![self selectionShouldChangeInTableView:nil] ) - return; + // Check whether a save of the current row is required. + if ( ![self saveRowOnDeselect] ) return; [tableFields addObject:[NSMutableDictionary dictionaryWithObjects:[NSArray arrayWithObjects:@"",@"int",@"",@"0",@"0",@"0",@"YES",@"",[prefs stringForKey:@"nullValue"],@"None",nil] forKeys:[NSArray arrayWithObjects:@"Field",@"Type",@"Length",@"unsigned",@"zerofill",@"binary",@"Null",@"Key",@"Default",@"Extra",nil]]]; - isEditingRow = YES; - isEditingNewRow = YES; [tableSourceView reloadData]; [tableSourceView selectRow:[tableSourceView numberOfRows]-1 byExtendingSelection:NO]; + isEditingRow = YES; + isEditingNewRow = YES; + currentlyEditingRow = [tableSourceView selectedRow]; [tableSourceView editColumn:0 row:[tableSourceView numberOfRows]-1 withEvent:nil select:YES]; } @@ -251,8 +251,9 @@ copies a field and goes in edit mode for the new field if ( ![tableSourceView numberOfSelectedRows] ) return; - if ( ![self selectionShouldChangeInTableView:nil] ) - return; + + // Check whether a save of the current row is required. + if ( ![self saveRowOnDeselect] ) return; //add copy of selected row and go in edit mode tempRow = [NSMutableDictionary dictionaryWithDictionary:[tableFields objectAtIndex:[tableSourceView selectedRow]]]; @@ -260,10 +261,11 @@ copies a field and goes in edit mode for the new field [tempRow setObject:@"" forKey:@"Key"]; [tempRow setObject:@"None" forKey:@"Extra"]; [tableFields addObject:tempRow]; - isEditingRow = YES; - isEditingNewRow = YES; [tableSourceView reloadData]; [tableSourceView selectRow:[tableSourceView numberOfRows]-1 byExtendingSelection:NO]; + isEditingRow = YES; + isEditingNewRow = YES; + currentlyEditingRow = [tableSourceView selectedRow]; [tableSourceView editColumn:0 row:[tableSourceView numberOfRows]-1 withEvent:nil select:YES]; } @@ -278,6 +280,9 @@ adds the index to the mysql-db and stops modal session with code 1 when success, NSEnumerator *enumerator; NSString *string; + // Check whether a save of the current fields row is required. + if ( ![self saveRowOnDeselect] ) return; + if ( [[indexedColumnsField stringValue] isEqualToString:@""] ) { [NSApp stopModalWithCode:-1]; } else { @@ -327,8 +332,9 @@ opens alertsheet and asks for confirmation { if ( ![tableSourceView numberOfSelectedRows] ) return; - if ( ![self selectionShouldChangeInTableView:nil] ) - return; + + // Check whether a save of the current row is required. + if ( ![self saveRowOnDeselect] ) return; NSBeginAlertSheet(NSLocalizedString(@"Warning", @"warning"), NSLocalizedString(@"Delete", @"delete button"), NSLocalizedString(@"Cancel", @"cancel button"), nil, tableWindow, self, @selector(sheetDidEnd:returnCode:contextInfo:), nil, @"removefield", [NSString stringWithFormat:NSLocalizedString(@"Do you really want to delete the field %@?", @"message of panel asking for confirmation for deleting field"), @@ -342,8 +348,9 @@ opens alertsheet and asks for confirmation { if ( ![indexView numberOfSelectedRows] ) return; - if ( ![self selectionShouldChangeInTableView:nil] ) - return; + + // Check whether a save of the current fields row is required. + if ( ![self saveRowOnDeselect] ) return; NSBeginAlertSheet(NSLocalizedString(@"Warning", @"warning"), NSLocalizedString(@"Delete", @"delete button"), NSLocalizedString(@"Cancel", @"cancel button"), nil, tableWindow, self, @selector(sheetDidEnd:returnCode:contextInfo:), nil, @"removeindex", [NSString stringWithFormat:NSLocalizedString(@"Do you really want to delete the index %@?", @"message of panel asking for confirmation for deleting index"), @@ -352,6 +359,12 @@ opens alertsheet and asks for confirmation - (IBAction)typeChanged:(id)sender { + // Check whether a save of the current row is required. + if ( ![self saveRowOnDeselect] ) { + [sender selectItemWithTitle:tableType]; + return; + } + NSString* selectedItem = [sender titleOfSelectedItem]; if([selectedItem isEqualToString:@"--"] || [tableType isEqualToString:selectedItem]) { [sender selectItemWithTitle:tableType]; @@ -397,8 +410,8 @@ opens the indexSheet { int code = 0; - if ( ![self selectionShouldChangeInTableView:nil] ) - return; + // Check whether a save of the current field row is required. + if ( ![self saveRowOnDeselect] ) return; [indexTypeField selectItemAtIndex:0]; [indexNameField setEnabled:NO]; @@ -543,6 +556,27 @@ fetches the result as an array with a dictionary for each row in it return tempResult; } + +/* + * A method to be called whenever the selection changes or the table would be reloaded + * or altered; checks whether the current row is being edited, and if so attempts to save + * it. Returns YES if no save was necessary or the save was successful, and NO if a save + * was necessary but failed - also reselecting the row for re-editing. + */ +- (BOOL)saveRowOnDeselect +{ + // If no rows are currently being edited, return success at once. + if (!isEditingRow) return YES; + + // Attempt to save the row, and return YES if the save succeeded. + if ([self addRowToDB]) return YES; + + // Saving failed - reselect the old row and return failure. + [tableSourceView selectRow:currentlyEditingRow byExtendingSelection:NO]; + return NO; +} + + - (BOOL)addRowToDB; /* tries to write row to mysql-db @@ -554,12 +588,12 @@ returns YES if no row is beeing edited and nothing has to be written to db NSMutableString *queryString; int code; - if ( !isEditingRow || ![tableSourceView numberOfSelectedRows] ) + if ( !isEditingRow || currentlyEditingRow == -1 ) return YES; if ( alertSheetOpened ) return NO; - theRow = [tableFields objectAtIndex:[tableSourceView selectedRow]]; + theRow = [tableFields objectAtIndex:currentlyEditingRow]; if ( isEditingNewRow ) { //ADD syntax @@ -646,6 +680,7 @@ returns YES if no row is beeing edited and nothing has to be written to db if ( [[mySQLConnection getLastErrorMessage] isEqualToString:@""] ) { isEditingRow = NO; isEditingNewRow = NO; + currentlyEditingRow = -1; [self loadTable:selectedTable]; // Mark the content table and column caches for refresh @@ -694,6 +729,7 @@ returns YES if no row is beeing edited and nothing has to be written to db isEditingRow = NO; isEditingNewRow = NO; } + currentlyEditingRow = -1; } [tableSourceView reloadData]; } else if ( [contextInfo isEqualToString:@"removefield"] ) { @@ -818,6 +854,7 @@ returns a dictionary containing enum/set field names as key and possible values if ( !isEditingRow ) { [oldRow setDictionary:[tableFields objectAtIndex:rowIndex]]; isEditingRow = YES; + currentlyEditingRow = rowIndex; } if ( anObject ) { [[tableFields objectAtIndex:rowIndex] setObject:anObject forKey:[aTableColumn identifier]]; @@ -834,8 +871,8 @@ Begin a drag and drop operation from the table - copy a single dragged row to th int originalRow; NSArray *pboardTypes; - if ( ![self selectionShouldChangeInTableView:nil] ) - return NO; + // Check whether a save of the current field row is required. + if ( ![self saveRowOnDeselect] ) return NO; if ( ([rows count] == 1) && (tableView == tableSourceView) ) { pboardTypes=[NSArray arrayWithObjects:@"SequelProPasteboard", nil]; @@ -961,24 +998,15 @@ would result in a position change. #pragma mark TableView delegate methods -- (BOOL)selectionShouldChangeInTableView:(NSTableView *)aTableView +- (void)tableViewSelectionDidChange:(NSNotification *)aNotification { -/* - int row = [tableSourceView editedRow]; - int column = [tableSourceView editedColumn]; - NSTableColumn *tableColumn; - NSCell *cell; - - if ( row != -1 ) { - tableColumn = [[tableSourceView tableColumns] objectAtIndex:column]; - cell = [tableColumn dataCellForRow:row]; - [cell endEditing:[tableSourceView currentEditor]]; - } -*/ -//end editing (otherwise problems when user hits reload button) - [tableWindow endEditingFor:nil]; - return [self addRowToDB]; + // Check our notification object is our table fields view + if ([aNotification object] != tableSourceView) + return; + + // If we are editing a row, attempt to save that row - if saving failed, reselect the edit row. + if ( isEditingRow && [tableSourceView selectedRow] != currentlyEditingRow && ![self saveRowOnDeselect] ) return; } /* @@ -1030,6 +1058,7 @@ traps enter and esc and make/cancel editing without entering next row [tableFields removeObjectAtIndex:row]; [tableSourceView reloadData]; } + currentlyEditingRow = -1; return TRUE; } else { return FALSE; @@ -1077,6 +1106,8 @@ traps enter and esc and make/cancel editing without entering next row oldRow = [[NSMutableDictionary alloc] init]; enumFields = [[NSMutableDictionary alloc] init]; + currentlyEditingRow = -1; + return self; } -- cgit v1.2.3