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Rails: where does the infamous “current_user” come from?

... that there are a lot of references to current_user . Does this only come from Devise? and do I have to manually define it myself even if I use Devise? Are there prerequisites to using current_user (like the existence of sessions, users, etc)? ...
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How to decide when to use Node.js?

...ited for applications where you'd like to maintain a persistent connection from the browser back to the server. Using a technique known as "long-polling", you can write an application that sends updates to the user in real time. Doing long polling on many of the web's giants, like Ruby on Rails or D...
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How to show the “Are you sure you want to navigate away from this page?” when changes committed?

...overflow, if you started to make changes then you attempt to navigate away from the page, a javascript confirm button shows up and asks: "Are you sure you want to navigate away from this page?" blee blah bloo... ...
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Convert Year/Month/Day to Day of Year in Python

... There is a very simple solution: from datetime import datetime day_of_year = datetime.now().timetuple().tm_yday share | improve this answer | ...
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Standard way to embed version into python package?

...laced after the module docstring but before any import statements except from __future__ imports. You should also make sure that the version number conforms to the format described in PEP 440 (PEP 386 a previous version of this standard). ...
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Change column type from string to float in Pandas

...ataFrame or Series to have. It's very versatile in that you can try and go from one type to the any other. Basic usage Just pick a type: you can use a NumPy dtype (e.g. np.int16), some Python types (e.g. bool), or pandas-specific types (like the categorical dtype). Call the method on the object you ...
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Preventing twitter bootstrap carousel from auto sliding on page load

So is there anyway to prevent twitter bootstrap carousel from auto sliding on the page load unless the next or previous button is clicked? ...
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Insert HTML into view from AngularJS controller

..., [ 'ngSanitize' ]); This will allow you to include markup in a string from a controller, directive, etc: scope.message = "<strong>42</strong> is the <em>answer</em>."; Finally, in a template, it must be output like so: <p ng-bind-html="message"></p> Whi...
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Should I check in node_modules to git when creating a node.js app on Heroku?

... Second Update The FAQ is not available anymore. From the documentation of shrinkwrap: If you wish to lock down the specific bytes included in a package, for example to have 100% confidence in being able to reproduce a deployment or build, then you ought to check your depe...
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What is the correct way to document a **kwargs parameter?

...tion, it seems like it might be easier to roll your own parameters section from the outset (as per some of the other answers), but as a proof of concept this is one way to achieve a nice look for supplementary **kwargs if you're already using Sphinx. ...