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Add timestamps to an existing table
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Migrations are just two class methods (or instance methods in 3.1): up and down (and sometimes a change instance method in 3.1). You want your changes to go into the up method:
class AddTimestampsToUser < ActiveRecord::Migration
def self.up # Or `def up` in 3.1
change_table :u...
Rails 3.1 and Image Assets
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In 3.1 you just get rid of the 'images' part of the path. So an image that lives in /assets/images/example.png will actually be accessible in a get request at this url - /assets/example.png
Because the assets/images folder gets...
“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
...thon 2.6 by accident somehow.
This feature is only available for at least 3.1 if you are using python 3, or 2.7 if you are using python 2.
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How to handle static content in Spring MVC?
... {
return "index";
}
}
WebContent/WEB-INF/web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.su...
ASP.NET: HTTP Error 500.19 – Internal Server Error 0x8007000d
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When trying to set up a .NET Core 1.0 website I got this error, and tried everything else I could find with no luck, including checking the web.config file, IIS_IUSRS permissions, IIS URL rewrite module, etc. In the end, I installed DotNetCore.1.0.0-Windows...
Pass a parameter to a fixture function
...tests. For example:
@pytest.fixture()
def test_package(request, version='1.0'):
...
request.addfinalizer(fin)
...
return package
(It doesn't matter for these purposes what the fixture does or what type of object the returned package) is.
It would then be desirable to somehow use...
jQuery: Select data attributes that aren't empty?
... are possible...
Check this test in jsFiddle for examples:
jQuery v1.11.0 -> jsFiddle online test
jQuery v2.1.0 -> jsFiddle online test
jQuery v2.1.3 -> jsFiddle online test
jQuery v3.0.0-alpha1 -> jsFiddle online test
jQuery v3.1.1 Slim -> jsFiddle onl...
ExecJS and could not find a JavaScript runtime
I'm trying to use the Mongoid / Devise Rails 3.1 template ( Mongoid and Devise ), and I keep getting an error stating ExecJS cannot find a JavaScript runtime. Fair enough when I didn't have any installed, but I've tried installing Node.js , Mustang and the Ruby Racer , but nothing is work...
How to get active user's UserDetails
...s responsible for the method argument (the first parameter).
Since Spring 3.1 there is a new concept called HandlerMethodArgumentResolver. If you use Spring 3.1+ then you should use it. (It is described in the next section of this answer))
public class CurrentUserWebArgumentResolver implements Web...
How can I disable logging of asset pipeline (sprockets) messages in Ruby on Rails 3.1?
... tends to be quite verbose in the (dev) log by default under Ruby on Rails 3.1 (RC1):
14 Answers
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