Be careful when using params.merge as params is a HashWithIndifferentAccess. Why? Usually this should not be an issue but it...
In rare cases you might need something like form_for (for using form builder methods on the resulting block element...
I prefer the application that I'm currently working on to be reachable at http://localhost/. So when I switch...
Be careful when memoizing a method that returns a scope, e.g.: def variants scoped(:conditions => { :name => name }) end memoize :variants...
When using form_for you can give the form's target URL either as a string or an array:
The timepicker addon adds a timepicker to jQuery UI Datepicker, thus the datepicker (jQueryUI) is required for using any of...
If you previously used version 2.x of Thunderbird and upgraded to 3.x (for example through an Ubuntu release...
The ancestry gem allows you to easily use tree structures in your Rails application. There is one somewhat unobvious pitfall...
If you need to look at the list of methods that are called upon certain events (like before/after saving etc...
This can be helpful when you need the latest file inside a directory for processing in a shell script:
If you did file operations inside a shell or for example using Nautilus, it can take quite a while until...
Lately, we’ve been exploring ways to offer web apps that perform like native apps on mobile devices. For this...
Sometimes the order in which strings appear on a page matters to you. Spreewald gives you steps like these:
When you do tags with acts-as-taggable-on and want to preload associated tags, you can do so with...
SSL in Rails 3 is non-obvious.
Note: We are talking about Machinist 1 here, Machinist 2 may have solved this or might require a different approach...
You need to install the following packages before you can build the Nokogiri gem: sudo apt-get install libxml2-dev...
If you want to see how long your database queries actually take, you need to disable MySQL's query cache...
If you get an error message like that you are missing the Aspell files a specific language:
Even when you're using bundler, it might be significant in which order your gems are listed in your Gemfile...
This post will describe how I stumbled upon a code path in the Linux kernel which allows external programs to...
[ ] [ ]= ** ! ~ + - * / % + - >> << & ^ | <= < > >= <=> == === != =~ !~ && || .. ... ? : = %= { /= -= += |= &= >>= <<= *= &&= ||= **= defined? not or and if unless while until begin/end For more information see Table 18.4 in The Pragmatic Programmer's...
A good tool to generate strong passwords and secrets is "apg". You can get it with sudo apt-get install...
Inside before :each blocks you can refer to variables that you introduce via let later on. They do not need...