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Detecting when the 'back' button is pressed on a navbar
...ped is possible by overriding willMove(toParentViewController:). The basic idea is that a view controller is being popped when parent is nil.
Check out "Implementing a Container View Controller" for further details.
Since iOS 5 I've found that the easiest way of dealing with this situation is us...
Oracle SQL: Update a table with data from another table
...ght rethink the query and use DISTINCT or GROUP BY with MIN, MAX. Just an idea.
– Francis
Aug 20 '15 at 16:27
Long st...
async/await - when to return a Task vs void?
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I got clear idea from this statements.
Async void methods have different error-handling semantics. When an exception is thrown out of an async Task or async Task method, that exception is captured and placed on the Task object. With as...
How to implement the activity stream in a social network
... Ditching the id and choosing a different clustered index might be a good idea - I haven't experimented with that.
Pretty basic stuff, but it works, it's simple, and it is easy to work with as your needs change. Also, if you aren't using MySQL you might be able to do better index-wise.
For fast...
SQL Server: Examples of PIVOTing String data
... Whoah, you just blew my mind. In the back of my head I had this idea of what I though SQL server "should just do darnit!", but thought it couldn't be done. Then, I saw this.
– David Hay
May 13 '13 at 21:12
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What is the purpose of Serialization in Java?
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I can share my story and I hope it will give some ideas why serialization is necessary. However, the answers to your question are already remarkably detail.
I had several projects that need to load and read a bunch of text files. The files contained stop words, biomedical v...
Recommended way to embed PDF in HTML?
...lugin image. The plugin page won't load the plugin it's looking for. Any ideas how to get around this?
– Shanimal
May 17 '12 at 4:09
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What is the right way to check for a null string in Objective-C?
...ll find that calling methods on NULL/NIL (same concept) is generally a bad idea in any language. Just because obj-c lets you do something like that doesn't mean you should just be passing around nil objects and trying to use them without caring.
– nenchev
Jun 2...
How is attr_accessible used in Rails 4?
...filter parameters in controller layer, and i don't think that this is best idea for all applications. For me the best way to filter parameters is to use additional layer. And we can use 'protected_attributes' gem to write this layer
– edikgat
Oct 16 '14 at 11:2...
How to navigate through the source code by parts in CamelCase (instead of whole words)?
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in the latest Idea the flow is Settings | Editor | General | Smart Keys
– Jiri Kremser
Jan 19 '15 at 14:06
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