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Explanation of JSONB introduced by PostgreSQL
...is if for legacy reasons your code consuming your json is dependent on the ordering of the json fields and they can't be reordered.
– djdrzzy
Aug 15 '16 at 20:35
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Django class-based view: How do I pass additional parameters to the as_view method?
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It's worth noting you don't need to override get_object() in order to look up an object based on a slug passed as a keyword arg - you can use the attributes of a SingleObjectMixin https://docs.djangoproject.com/en/1.5/ref/class-based-views/mixins-single-object/#singleobjectmixin
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How to get the top 10 values in postgresql?
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For this you can use limit
select *
from scores
order by score desc
limit 10
If performance is important (when is it not ;-) look for an index on score.
Starting with version 8.4, you can also use the standard (SQL:2008) fetch first
select *
from scores
order by scor...
Deny all, allow only one IP through htaccess
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order deny,allow
deny from all
allow from <your ip>
share
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Accessing items in an collections.OrderedDict by index
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If its an OrderedDict() you can easily access the elements by indexing by getting the tuples of (key,value) pairs as follows
>>> import collections
>>> d = collections.OrderedDict()
>>> d['foo'] = 'python'
&...
Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
...nd the version become paid now, check this bypasscaptcha.com/captchakiller.php
– MarmiK
Sep 6 '13 at 10:38
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A fast method to round a double to a 32-bit int explained
...o bad, but on later processors that started to get super-scalar and out-of-order execution, altering the fp rounding mode generally seriales the CPU core and is quite expensive. So on a CPU like a Pentium-III or Pentium-IV, this overall cost is quite high -- a normal fp->int conversion is 10x or...
Grab a segment of an array in Java without creating a new array on heap
...rious primitive types and helps manage slicing, position, conversion, byte ordering, etc.
If your bytes originate from a Stream, the NIO Buffers can use "direct mode" which creates a buffer backed by native resources. This can improve performance in a lot of cases.
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jQuery's .click - pass parameters to user function
... @phoffer: You would have to pass the element explicitly in order to use it, e.g.: function(){ add_event('shot', $(this));} and function add_event(event, element){...}. element would be a jQuery element here (it works with bind() though as Nick mentioned).
– Feli...
rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
...same error in my development environment. In the end all I needed to do in order to fix it was to add:
config.assets.manifest = Rails.root.join("public/assets")
to my config/environments/development.rb file and it fixed it. My final config in development related to assets looks like:
config.asse...