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iphone Core Data Unresolved error while saving
...quirements try cleaning your build and delete the application from your iPhone Simulator/iPhone device. Your model change may conflict with the old model implementation.
Edit:
I almost forgot here's all the error codes that Core Data spits out:
Core Data Constants Reference
I had trouble with this...
How to compare strings in Bash
... And if you do need an else clause and want to make a crazy one-liner: [ "$x" == "valid" ] && echo "valid" || echo "invalid"
– Matt White
Mar 1 '13 at 13:32
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What is the difference between using IDisposable vs a destructor in C#?
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One extra thing to say. Do not add a finalizer to your class unless you really, really need one. If you add a finalizer (destructor) the GC has to call it (even an empty finalizer) and to call it the object will always surviv...
Entity Framework - Invalid Column Name '*_ID"
..., but I'm not sure how to fix it. I'll try to be as clear as I can, but I honestly am missing some of the understanding here myself. This is Entity Framework 4.4
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Protecting Java Source Code From Being Accessed [closed]
Last week, I had to create a little GUI for homework.
None of my school mates did it. They have stolen my one from where we had to upload it and then they uploaded it again as theirs. When I told my teacher it was all my work he did not believe me.
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XSD - how to allow elements in any order any number of times?
...s. So this sounds like what you are looking for.
Edit: if you wanted only one of them to appear an unlimited number of times, the unbounded would have to go on the elements instead:
Edit: Fixed type in XML.
Edit: Capitalised O in maxOccurs
<xs:element name="foo">
<xs:complexType>
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Why are quaternions used for rotations?
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Gimbal lock is one reason, although as you say it is only a problem with Euler angles and is easily solvable. Euler angles are still used when memory is a concern as you only need to store 3 numbers.
For quaternions versus a 3x3 rotation m...
How do you pass arguments to define_method?
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end
end
a = Bar.new
a.foo :one, 'two', :three, 4, 5 do
'six'
end
Update
Ruby 2.0 introduced double splat ** (two stars) which (I quote) does:
Ruby 2.0 introduced keyword arguments, and ** acts like *, but for keyword arguments. It returns a...
What is a mutex?
...er chicken, you need to ask yourself whether you actually need 5 people in one room and would it not just be easier with one person in the room on their own doing all the work. Actually, this is just extending the analogy, but you get the idea.
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How do you add CSS with Javascript?
...stylesheet: external, embedded or empty, it doesn't matter. If there isn't one, the only standard way to create it at the moment is with createElement.
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