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Are loops really faster in reverse?
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answered Oct 30 '12 at 10:12
alestanisalestanis
19.7k44 gold badges4141 silver badges6565 bronze badges
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When do you need to explicitly call a superclass constructor?
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10
If you don't explicitly call a super constructor the argument less constructor (super()) will b...
How can I split a shell command over multiple lines when using an IF statement?
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Mark ReedMark Reed
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6
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How ListView's recycling mechanism works
...318946
– Pratik Butani
May 8 '15 at 10:54
1
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PHP + MySQL transactions examples
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answered Apr 25 '10 at 12:49
Pascal MARTINPascal MARTIN
366k6767 gold badges624624 silver badges641641 bronze badges
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What do I return if the return type of a method is Void? (Not void!)
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104
So what am I supposed to return if the return type of a function has to be Void?
Use ret...
Django. Override save for model
... Or put whole logic in here
small = rescale_image(self.image,width=100,height=100)
self.image_small=SimpleUploadedFile(name,small_pic)
def get_image(self):
return self._image
image = property(get_image, set_image)
# this is not needed if small_image is created ...
Ruby: Change negative number to positive number?
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edited Mar 19 '10 at 22:45
answered Mar 19 '10 at 22:39
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In a django model custom save() method, how should you identify a new object?
...one object
– Ben James
Dec 4 '09 at 10:38
3
Not all models have an id attribute, i.e. a model ext...
Run task only if host does not belong to a group
...sts file like this:
[vagrant:vars]
test_var=true
[location-1]
192.168.33.10 hostname=apollo
[location-2]
192.168.33.20 hostname=zeus
[vagrant:children]
location-1
location-2
And run tasks like this:
- name: "test"
command: "echo {{test_var}}"
when: test_var is defined and test_var
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