March 2013 – Page 2 – The WP Guru

How to return the number of sections in a UITableView with Core Data

March 18, 2013 by Jay Versluis

I can never remember how to do this. Here’s the method provided by the Master / Detail template when using Core Data: – (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return [[self.fetchedResultsController sections] count]; }

How to convert a Persistent Store from XML to SQLite in Core Data

March 17, 2013 by Jay Versluis

By default Mac Apps use XML as store type when saving in Core Data, even though it can use other formats – such as SQLite, which is the default on iOS. Here’s a way to quickly convert one into the other. Note that this is designed as a one-off operation to create a new store […]

Binding an NSTableView to Core Data without code

March 17, 2013 by Jay Versluis

I was excited to find out that it is possible to write a Mac App with Core Data completely without code! This magic is possible with something that’s not available in iOS (yet) called Cocoa Bindings. You provide the user controls you need in Xcode, then control-drag your way to extensive functionality and happiness. Before […]

How to assure your values are as intended with NSAssert

March 16, 2013 by Jay Versluis

NSAssert is a macro which allows you to test for specific values if and when they occur. Rather than having to figure out where your app has passed the wrong value several stages before a problem happened, NSAssert can be used like NSLog – with the helpful difference that if all is well, there’s no […]

What is an Exception Breakpoint

March 16, 2013 by Jay Versluis

Sometimes Xcode just throws an error message that isn’t very helpful. That’s usually when we have to try and figure out why something didn’t go the way we expected it. Other times however, Xcode tells us very clearly which element it isn’t happy with – we fix it and our app progresses. Why can’t it […]

How to increase the number of simultaneous IMAP connections in Plesk

September 7, 2013March 14, 2013 by Jay Versluis

By default Plesk sets up the IMAP Email Service on your server so that four simultaneous connections can be made from the same IP address in the same timeframe. This is to protect your servers from too many connections.

This however isn’t cutting it if you have a small office full of people on the same IP, connecting from 4 computers, 16 iphones and 12 iPads every 5 minutes.

The solution: tweak the IMAP configuration file, restart the daemon and have a good life. Let me show you how to do it on Plesk 11 and CentOS 6.4.

How to split long Posts and Pages

March 13, 2013 by Jay Versluis

In this podcast I will show you how to use the MORE and NEXTPAGE features in WordPress. These are built-in tags that will make your posts look their best: MORE can break your post off on the front page, so instead of the entire post being displayed you can choose where WordPress inserts a “read … Read more

How to activate a UISearchDisplayController

March 9, 2013 by Jay Versluis

We can do this two ways: // version 1: [self.searchBar becomeFirstResponder]; // version 2: [self.searchDisplayController setActive:YES animated:YES]; The benefit of version 2 is that if we perform it “in vision”, we can use the animated option and make it look all swish. Version 2 of course also has a reverse with which we can deactivate […]