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| author | Rick Olson <technoweenie@gmail.com> | 2007-01-05 20:17:37 +0000 |
|---|---|---|
| committer | Rick Olson <technoweenie@gmail.com> | 2007-01-05 20:17:37 +0000 |
| commit | 606376bd448a5d27cbcd5d23ad89a99d9d4fdb54 (patch) | |
| tree | 26b3ced34a861f36c5ccd8816a2ce6446ae3fbe4 /activerecord/lib | |
| parent | f1b45df49ac392378502ba7994fb079fac473d03 (diff) | |
| download | rails-606376bd448a5d27cbcd5d23ad89a99d9d4fdb54.tar.gz rails-606376bd448a5d27cbcd5d23ad89a99d9d4fdb54.tar.bz2 rails-606376bd448a5d27cbcd5d23ad89a99d9d4fdb54.zip | |
[DOCS] Document :allow_nil option of #validate_uniqueness_of. Closes #3143 [Caio Chassot]
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5853 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
Diffstat (limited to 'activerecord/lib')
| -rwxr-xr-x | activerecord/lib/active_record/validations.rb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb index 342a4844cc..6f284242cd 100755 --- a/activerecord/lib/active_record/validations.rb +++ b/activerecord/lib/active_record/validations.rb @@ -520,6 +520,7 @@ module ActiveRecord # * <tt>message</tt> - Specifies a custom error message (default is: "has already been taken") # * <tt>scope</tt> - One or more columns by which to limit the scope of the uniquness constraint. # * <tt>case_sensitive</tt> - Looks for an exact match. Ignored by non-text columns (true by default). + # * <tt>allow_nil</tt> - If set to true, skips this validation if the attribute is null (default is: false) # * <tt>if</tt> - Specifies a method, proc or string to call to determine if the validation should # occur (e.g. :if => :allow_validation, or :if => Proc.new { |user| user.signup_step > 2 }). The # method, proc or string should return or evaluate to a true or false value. |