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Rails find_or_create_by more than one attribute?
...epak Mahakale
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answered Jun 15 '10 at 15:31
x1a4x1a4
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How do I ignore the authenticity token for specific actions in Rails?
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In Rails 4:
skip_before_action :verify_authenticity_token, except: [:create, :update, :destroy...
Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate
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330
@NotNull is a JSR 303 Bean Validation annotation. It has nothing to do with database constrain...
Are static fields inherited?
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3 in all cases, since the static int total inherited by SomeDerivedClass is exactly the one in SomeClass, not a distinct variable.
Edit: actually 4 in all cases, as @ejames spotted and pointed out in his answer, which see.
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Vim Configure Line Number Coloring
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Greg HewgillGreg Hewgill
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arrow operator (->) in function heading
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Nathan Ernst
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answered Mar 19 '14 at 18:55
Jan HudecJan Hudec
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How do I prevent the iPhone screen from dimming or turning off while my application is running?
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edited Feb 16 '18 at 3:27
Valentin Shamardin
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Limits of Nat type in Shapeless
...corresponds to the number of nested shapeless.Succ[] types:
scala> Nat(3)
res10: shapeless.Succ[shapeless.Succ[shapeless.Succ[shapeless._0]]] = Succ()
So to represent the number 1000000, you would have a type that is nested 1000000 levels deep, which would definitely blow up the scala compiler...
extract part of a string using bash/cut/split
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To extract joebloggs from this string in bash using parameter expansion without any extra proc...