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Paperclip::Errors::MissingRequiredValidatorError with Rails 4
...nt_file_name :image, :matches => [/png\Z/, /jpe?g\Z/, /gif\Z/]
Option 3: Do not validate
If for some crazy reason (can be valid but I cannot think of one right now), you do not wish to add any content_type validation and allow people to spoof Content-Types and receive data you weren't expectin...
What's the difference between @Secured and @PreAuthorize in spring security 3?
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axtavtaxtavt
223k3636 gold badges481481 silver badges466466 bronze badges
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What is the formal difference in Scala between braces and parentheses, and when should they be used?
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370
I tried once to write about this, but I gave up in the end, as the rules are somewhat diffuse....
Gradient borders
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193
WebKit now (and Chrome 12 at least) supports gradients as border image:
-webkit-border-image: -...
What is the lifetime of a static variable in a C++ function?
...oo");
}
int main(int argc, char*[])
{
foo(argc != 2);
if (argc == 3)
foo(false);
}
Output:
C:>sample.exe
Created in foo
Destroyed in foo
C:>sample.exe 1
Created in if
Created in foo
Destroyed in foo
Destroyed in if
C:>sample.exe 1 2
Created in foo
Created in if
Destroyed...
what is the difference between 'transform' and 'fit_transform' in sklearn
... already called its .fit method.
In [12]: pc2 = RandomizedPCA(n_components=3)
In [13]: pc2.transform(X) # can't transform because it does not know how to do it.
---------------------------------------------------------------------------
AttributeError Traceback (most rece...
What does “zend_mm_heap corrupted” mean
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37 Answers
37
Active
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npm command to uninstall or prune unused packages in Node.js
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3 Answers
3
Active
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Getting “Cannot read property 'nodeType' of null” when calling ko.applyBindings
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edited May 23 '17 at 12:26
Community♦
111 silver badge
answered Feb 3 '12 at 11:58
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