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Rails :dependent => :destroy VS :dependent => :delete_all
...nuke it from orbit" solution where you don't care about / don't have any before / after destroy callbacks on the models.
– Ryan Bigg
May 10 '10 at 1:06
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What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
...ity to use the JavaScript History API that was introduced alongside HTML5. For a URL like www.example.com/ajax.html#!key=value, Google will check the URL www.example.com/ajax.html?_escaped_fragment_=key=value to fetch a non-AJAX version of the contents.
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Is it possible to dynamically compile and execute C# code fragments?
...possible to compile and/or execute this code? I would prefer to compile it for performance reasons.
6 Answers
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DynamoDB vs MongoDB NoSQL [closed]
I'm trying to figure it out what can I use for a future project, we plan to store from about 500k records per month in the first year and maybe more for the next years this is a vertical application so there's no need to use a database for this, that's the reason why I decided to choose a noSQL data...
Custom CSS Scrollbar for Firefox
...om/a/54101063/405015
https://stackoverflow.com/a/53739309/405015
And this for background info: https://bugzilla.mozilla.org/show_bug.cgi?id=1460109
There's no Firefox equivalent to ::-webkit-scrollbar and friends.
You'll have to stick with JavaScript.
Plenty of people would like this feature, see:...
Why is null an object and what's the difference between null and undefined?
...on't know what you're talking about. You haven't ever mentioned any name before. Are you seeing some other scripting language on the (client-)side?
name = null;
You: What is name?
JavaScript: I don't know.
In short; undefined is where no notion of the thing exists; it has no type, and it's never be...
Does SQLAlchemy have an equivalent of Django's get_or_create?
...nce:
return instance, False
else:
params = dict((k, v) for k, v in kwargs.iteritems() if not isinstance(v, ClauseElement))
params.update(defaults or {})
instance = model(**params)
session.add(instance)
return instance, True
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Which characters are valid/invalid in a JSON key name?
Are there any forbidden characters in key names, for JavaScript objects or JSON strings? Or characters that need to be escaped?
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What's the best CRLF (carriage return, line feed) handling strategy with Git?
...ng with line endings.
Git allows you to set the line ending properties for a
repo directly using the text attribute in the
.gitattributes file. This file is committed into
the repo and overrides the core.autocrlf setting,
allowing you to ensure consistent behaviour for all
users regard...
How to change the name of a Django app?
...e>'
Also if you have models, you will have to rename the model tables. For postgres use ALTER TABLE <oldAppName>_modelName RENAME TO <newAppName>_modelName. For mysql too I think it is the same (as mentioned by @null_radix)
(For Django >= 1.7) Update the django_migrations table to...