This card needs to be updated for Rails 3+. Since there is no --debugger flag you need to run:
This can be helpful when you need the latest file inside a directory for processing in a shell script:
Rails 5 will introduce ActiveRecord::Relation#or. On Rails 4 and 3.2 you can use the activerecord_any_of gem...
If your Angular app has some decent complexity, it will not be easy to use UI Router straight away. Here...
TL;DR: Variables not declared using var are stored outside the current scope, most likely in the global scope (which...
...as it breaks Rails' magic, e.g. when using form_for. You'll always be better off using simple pluralizable resources. Rails automatically creates path names for routes defined via the...
If you need the initial user which you used to login to your Linux system or the time when you...
To change a commit message of the most recent (unpushed) commit, you can simply use git commit --amend -m 'new...
If you want to inspect the compiled code of your erb (or haml) templates, you can run the following code...
This may be hard to find in the docs, but if you want CoffeeScript classes that instantiate their properties from...
The $.cssHooks object provides a way to define functions for getting and setting particular CSS values. It can also be...
Put the attached file into config/initializers/ to be able to say created_within on any ActiveRecord or its scope chain...
Sometimes you want to see what data you get through a TCP or UDP connection. For example, you want to...
You might get the above error message when cloning certain git repositories (for example the rails repository). It indicates that...
Note: The behaviour of Spreewald's within step is as described below for version < 1.9.0; For Spreewald >= 1.9.0 it is as described in Solution 1. When doing integration testing with...
...retries in the most deeply nested patiently-block, but it may lead to unexpected behaviour, especially if the outermost patiently is "hidden". For example consider the following step, which wants...
Chart.js seems to be a good alternative to Google's Chart API and other commercial chart drawing libraries.
...Why, oh why, is this built with Rails when Node.js would be so much better?” or “how could the previous developer not have forseen that the database would need referential...
...Analytics. Since it is open-source, it can be self-hosted and thus offers better data protection and privacy. Notes Actuality Piwik does not show live reports, but updates its...
Put the following into config.ru in your Rails root folder: # Require your environment file to bootstrap Rails require ::File.dirname(__FILE...
You can change the color for text selection via CSS, using the ::selection and ::-moz-selection pseudo-elements.
When you're getting this error, one possibility is that you've created a select field for an association instead...
In Rails, you can very easily send emails with HTML and plaintext bodies. However, if you're trying to debug...
Open up your "Base File.sublime-settings" (Preferences Menu → File Settings – User) in Sublime Text 2. Add entries for font_face...
When you want to quickly boot from a drive or image in a virtual machine you do not need to...