If your project manager wants to do gatekeeping on a project, as a developer you need to follow the following...
If you're responsible for gatekeeping in a projects, here is a guide, what to do. In order to reduce...
TeamViewer 6 and lower had an issue where they would see a multi-monitor Linux setup as a single wall...
When your model is using a callback like before_save or before_validation to calculate an aggregated value from its...
will_paginate triggers a database query to determine the total number of entries (i.e. to let you display the number...
We experienced problems with Sunspot and Solr on Tomcat: Umlauts (ä, ö, ü) were not correctly handled on Tomcat while...
The handy method has_select?(field, :selected => text) does not behave as expected with Cucumber 0.10.2, Capybara 0.4.1.2 and Selenium...
Imagine you have 2 HTML boxes. The first one has a margin-bottom of let's say 30px and the...
The .ova file format is a tar file with a .ovf file inside. tar xvf virtualboximage.ova
Delegating methods to other objects is often helpful but the syntax of both def_delegators and def_delegator is a...
A lightweight javascript date library for parsing, manipulating, and formatting dates.
You probably know about the possibility to tag scenarios in Cucumber to run your own piece of code before the...
In MySQL comparing zero to a string 0 = "any string" is always true! So when you want to compare a...
You can change the color for text selection via CSS, using the ::selection and ::-moz-selection pseudo-elements.
REST Client is a nice, simple HTTP client library for Ruby. When you do a simple GET request like that...
The attached patch lets you find a record by a string or number in any column: User.find_by_anything('carla...
This is a very general introduction to MV* Javascript frameworks. This card won't tell you anything new if you...
In order to save the original value of a constant, set the new value and restore the old value after...
Copy the attached file to config/initializers/indent_string.rb and you can say "foo".indent(4) # " foo" Note you will find many simpler...
We've made it easier to link other cards: You can now find a button Cite other card above the...
To access files from another branch or past commit without doing a complete checkout, you can either use
This error simply means you've overloaded a cookie. Hints for fixing: Check if you're putting too much (e.g...
Imagine you have a piece of code that tries to send a request to a remote server. Now the server...
Tooltips that are delivered through HTML attributes are encoded. Decode entities before checking for their presence. Capybara: Then /^there should...