The effect reload problem in Prototype and Scriptaculous
March 9th, 2008
This problem actually relates to any site that uses queued effects, I just ran into it on Ruby on Rails. The problem is that if you queue up too many scriptaculous effects on a dom object, you will end up having nothing displayed, or flickering or highlights that never fade etc…
Read the rest of this entrySimple Rails Javascript Form Validation
March 4th, 2008
If you have a form with some required text fields (like, name, password) then waiting for your users to hit submit is too late to tell them those fields are required. The other option is disabling the submit button until they have filled in the data, here is how…
Read the rest of this entrySpinning Circle of Death - Or How to Add Exception Handling to a Rails AJAX App
February 28th, 2008
If you are programming a Ruby on Rails AJAX application, you will have to handle system exceptions at some point, because if you don’t, the user gets to sit watching a spinner.gif file merrily spinning away for the rest of his or her natural existence…
Read the rest of this entryJavascript Field Monitor
February 25th, 2008
While working on a recent Ruby on Rails project, I needed to be able to check the changes in the forms that were appearing on the page and highlight those fields on change. I looked around and couldn’t really find anything I liked, so I made one.
Read the rest of this entryHistory Buttons with AJAX and Ruby on Rails
February 22nd, 2008
If you are using Ruby on Rails with AJAX to update parts or whole pages of your site, you will hit the history problem soon enough, luckily, with Really Simple History and Rails’ RJS templates and helpers, it becomes quite trivial to handle.
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Latest comments
- Mikel
@Clemens
I actually use Geoffrey’s approach in all my spec’s in addition to this little builder.
The idea of the...
- Clemens Kofler
Geoffrey Grosenbach uses another method in his screencasts sometimes.
In your user_spec.rb, you’d have the following code:module UserSpecHelper...
- Xavier Shay
Even quicker way to assign User.find to a variable: user = _
the value of the last line executed is...
- Mikel
Duncan, good point, I changed the code above. Thanks for that.
- Duncan Beevers
It might be better to use a method name like build_valid instead of just build.
This way, you could use...
- Mikel
Exactly, this method handles it if it is false or nil and always returns true or false.
Mikel