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Rails 3 execute custom sql query without a model
...
Maybe try this:
ActiveRecord::Base.establish_connection(...)
ActiveRecord::Base.connection.execute(...)
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Django rest framework, use different serializers in the same ModelViewSet
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Override your get_serializer_class method. This method is used in your model mixins to retrieve the proper Serializer class.
Note that there is also a get_serializer method which returns an instance of the correct Serializer
class DualSeri...
Is there a way to detect if an image is blurry?
...ed image and takes the average of the 90% highest frequencies:
testFft[img_] := Table[
(
blurred = GaussianFilter[img, r];
fft = Fourier[ImageData[blurred]];
{w, h} = Dimensions[fft];
windowSize = Round[w/2.1];
Mean[Flatten[(Abs[
fft[[w/2 - windowSize ;; w/2 + windowSize,
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What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]
...d .cctor() cil managed
{
// Code size 11 (0xb)
.maxstack 8
IL_0000: ldstr ""
IL_0005: stsfld string System.String::Empty
IL_000a: ret
} // end of method String::.cctor
In the .NET 4.5 version of mscorlib.dll, String.cctor (the static constructor) is conspicuously abse...
Can a C# lambda expression have more than one statement?
...ven without curly brackets:
Action<int, int> action = (x, y) => (_, _) = (X += x, Y += y);
and
Action<int, int> action = (x, y) => _ = (X += x, Y += y);
would be the same as:
Action<int, int> action = (x, y) => { X += x; Y += y; };
This also might be helpful if yo...
Type hinting a collection of a specified type
...ntainers.
In other words, now you can do:
from typing import List
def my_func(l: List[int]):
pass
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Best explanation for languages without null
... middleLen = p.middleName match {
case Some(x) => x.length
case _ => 0
}
p.firstName.length + middleLen + p.lastName.length
}
there's not much difference! But it's also a terrible way to use Options... This approach is much cleaner:
def fullNameLength(p:Person) = {
val middl...
Getting the object's property name
...DN
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
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Can I change the checkbox size using CSS?
...box-shadow: 0 0 0.2em #3b88fd;
}
<input type="checkbox" name="checkbox_1" id="ee" checked />
<label for="ee">Checkbox small</label>
<br />
<input type="checkbox" name="checkbox_2" id="ff" />
<label for="ff">Checkbox small</label>
<hr />
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How to handle anchor hash linking in AngularJS
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I use $location.hash(my_id); $anchorScroll; $location.hash(null). It prevents the reload and I don't have to manage the old variable.
– MFB
Jun 25 '15 at 5:11
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