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Rails where condition using NOT NIL
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The canonical way to do this with Rails 3:
Foo.includes(:bar).where("bars.id IS NOT NULL")
ActiveRecord 4.0 and above adds where.not so you can do this:
Foo.includes(:bar).where.not('bars.id' => nil)
Foo.includes(:bar).where.not(bars: { id: nil })
When working wit...
Finding local maxima/minima with Numpy in a 1D numpy array
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Commands executed from vim are not recognizing bash command aliases
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In Intellij, how do I toggle between camel case and underscore spaced?
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What is the correct way to restore a deleted file from SVN?
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How do ACID and database transactions work?
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Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib
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Combining CSS Pseudo-elements, “:after” the “:last-child”
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