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Paperclip::Errors::MissingRequiredValidatorError with Rails 4
...s_attachment_content_type in Model
Rails 3
class User < ActiveRecord::Base
attr_accessible :avatar
has_attached_file :avatar, :styles => { :medium => "300x300>", :thumb => "100x100>" }, :default_url => "/images/:style/missing.png"
validates_attachment_content_type :avatar, :co...
Which ORM should I use for Node.js and MySQL? [closed]
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Based on the docs it looks like Sequelize is way ahead of this project.
– Tony O'Hagan
Dec 7 '12 at 0:54
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How to submit a form using PhantomJS
... @user984003 You should be able to set your selector to #someid to fill in based on an ID.
– arboc7
Apr 1 '13 at 22:12
2
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Sending JWT token in the headers with Postman
I'm testing an implementation of JWT Token based security based off the following article . I have successfully received a token from the test server. I can't figure out how to have the Chrome POSTMAN REST Client program send the token in the header.
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Correct way of using JQuery-Mobile/Phonegap together?
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Here's how it worked for me, based on the example above
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="format-detection" content="telephone=n...
How to add Action Bar from support library into PreferenceActivity?
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}
The reason that PreferenceScreen's are such a pain is because they are based as a wrapper dialog, so we need to capture the dialog layout to add the toolbar to it.
Toolbar Shadow
By design importing the Toolbar does not allow for elevation and shadowing in pre-v21 devices, so if you would like ...
Fixing Sublime Text 2 line endings?
...s (OS-9 and earlier).
The Line Feed (LF) character (0x0A, \n) [...] UNIX based systems (Linux, Mac OSX)
The End of Line (EOL) sequence (0x0D 0x0A, \r\n) [...] (non-Unix: Windows, Symbian OS).
If you have node_modules, build or other auto-generated folders, delete them before running the pa...
Remove element of a regular array
...inal question, the 2nd element (with 1 being the second element in C# zero-based array indexing).
A more complete example:
string[] myArray = { "a", "b", "c", "d", "e" };
int indexToRemove = 1;
myArray = myArray.Where((source, index) => index != indexToRemove).ToArray();
After running that sn...
PHP filesize MB/KB conversion [duplicate]
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This is based on @adnan's great answer.
Changes:
added internal filesize() call
return early style
saving one concatentation on 1 byte
And you can still pull the filesize() call out of the function, in order to get a pure bytes...
live output from subprocess command
..., good explanation but it lacks the concrete code examples. Here's asyncio-based code that implements the "hard part" (it handles multiple pipes concurrently) in a portable way. You could compare it to the code that uses multiple threads (teed_call()) to do the same.
– jfs
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