Aaron Wright acwright
acwright
/ gist:1535473
Created
December 29, 2011 18:34
Create dynamic date predicate using now() function
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| // The goal... | |
| [NSPredicate predicateWithFormat:@"dateModified >= CAST(CAST(now(), \"NSNumber\") - %d, \"NSDate\")", (30*86400)]; | |
| //"now()" is a function and takes no arguments | |
| NSExpression *now = [NSExpression expressionForFunction:@"now" arguments:[NSArray array]]; | |
| //CAST(now(), 'NSNumber') | |
| NSArray *castNowArguments = [NSArray arrayWithObjects:now, [NSExpression expressionForConstantValue:@"NSNumber"], nil]; | |
| NSExpression *castNow = [NSExpression expressionForFunction:@"castObject:toType:" arguments:castNowArguments]; | |
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| # pragma mark menu | |
| - (BOOL)validateMenuItem:(NSMenuItem *)menuItem { | |
| if ([menuItem action] == @selector(toggleRuler:)) { | |
| if ([canvasView rulersVisible]) { | |
| [menuItem setTitle:@"Hide Ruler"]; | |
| } else { | |
| [menuItem setTitle:@"Show Ruler"]; | |
| } | |
| } |
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