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| Description: | When Active Record objects are saved from a form, empty fields are saved as empty strings instead of nil. This kills most validations. |
| Homepage: | |
| Clone URL: | git://github.com/collectiveidea/clear_empty_attributes.git |
| name | age | message | |
|---|---|---|---|
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.gitignore | Tue Dec 23 04:23:28 -0800 2008 | |
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README.markdown | Loading commit data...  |
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Rakefile | ||
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clear_empty_attributes.gemspec | ||
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init.rb | Mon Feb 05 06:55:52 -0800 2007 | |
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lib/ | ||
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spec/ | ||
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tasks/ | Thu Jan 15 22:15:35 -0800 2009 |
README.markdown
Problem
When AR objects are saved, empty fields are saved as '' instead of nil.
- Complicates queries for empty fields (
WHERE field IS NULL OR field = '') - Makes the use of
unless field.blank?necessary (opposed to onlyif field) - Can lead to late-detected bugs because most of the time strings were
filled or ''and suddenly they arenil - Some validations do not support
:allow_blank=>true - Databases can handle
NULLbetter & faster than empty strings (especially when usingLIKE)
Solution
Defines an AR before_validation that sets empty Strings to nil.
Install
script/plugin install git://github.com/collectiveidea/clear_empty_attributes.git
OR
sudo gem install collectiveidea-clear_empty_attributes
Migration
When you are switching to clear_empty_attributes, run this task
to remove any '' strings/texts from your database.
rake db:clear_empty_attributes
(only works when checked out or installed as plugin)
TODO
Should work with update_attribute / write_attribute too
