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Override devise registrations controller

... # add custom create logic here end def update super end end And then tell devise to use that controller instead of the default with: # app/config/routes.rb devise_for :users, :controllers => {:registrations => "registrations"} ...
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When do we need curly braces around shell variables?

In shell scripts, when do we use {} when expanding variables? 7 Answers 7 ...
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The remote end hung up unexpectedly while git cloning

...o the remote system. For requests larger than this buffer size, HTTP/1.1 and Transfer-Encoding: chunked is used to avoid creating a massive pack file locally. Default is 1 MiB, which is sufficient for most requests. Even for the clone, that can have an effect, and in this instance, the OP Joe re...
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Why is there no String.Empty in Java?

I understand that every time I type the string literal "" , the same String object is referenced in the string pool. 11 An...
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Swift how to sort array of custom objects by property value

lets say we have a custom class named imageFile and this class contains two properties. 18 Answers ...
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Storing Images in PostgreSQL

... Updating to 2012, when we see that image sizes, and number of images, are growing and growing, in all applications... We need some distinction between "original image" and "processed image", like thumbnail. As Jcoby's answer says, there are two options, then, I recommend: ...
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Converting NumPy array into Python List structure?

...nvert a NumPy array to a Python List (for example [[1,2,3],[4,5,6]] ), and do it reasonably fast? 5 Answers ...
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What does “var FOO = FOO || {}” (assign a variable or an empty object to that variable) mean in Java

...s is used to create a namespace, i.e. a named object under which functions and variables can be created without unduly polluting the global object. The reason why it's used is so that if you have two (or more) files: var MY_NAMESPACE = MY_NAMESPACE || {}; MY_NAMESPACE.func1 = { } and var MY_NAM...
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How to get client's IP address using JavaScript?

...gs simpler). Below are all the free active IP lookup services I could find and the information they return. If you know of any more, then please add a comment and I'll update this answer. Cloudflare Try it: https://www.cloudflare.com/cdn-cgi/trace // If your site is on Cloudflare, then you can use ...
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How to change a command line argument in Bash?

Is there a way to change the command line arguments in a Bash script. Say for example, a Bash script is invoked the following way: ...