diff options
Diffstat (limited to 'activemodel/lib/active_model/validations/presence.rb')
| -rw-r--r-- | activemodel/lib/active_model/validations/presence.rb | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/activemodel/lib/active_model/validations/presence.rb b/activemodel/lib/active_model/validations/presence.rb index 3dd2c97cd8..62e466901b 100644 --- a/activemodel/lib/active_model/validations/presence.rb +++ b/activemodel/lib/active_model/validations/presence.rb @@ -7,22 +7,26 @@ module ActiveModel # validates_presence_of :first_name # end # - # The first_name attribute must be in the object and it cannot be blank. + # The +first_name+ attribute must be in the object and it cannot be blank. # - # If you want to validate the presence of a boolean field (where the real values are true and false), - # you will want to use validates_inclusion_of :field_name, :in => [true, false] - # This is due to the way Object#blank? handles boolean values. false.blank? # => true + # If you want to validate the presence of a boolean field (where the real values are +true+ and +false+), + # you will want to use + # + # validates_inclusion_of :field_name, :in => [true, false] + # + # This is due to the way Object#blank? handles boolean values: + # + # false.blank? # => true # # Configuration options: - # * <tt>message</tt> - A custom error message (default is: "can't be blank") - # * <tt>on</tt> - Specifies when this validation is active (default is :save, other options :create, :update) - # * <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 + # * <tt>:message</tt> - A custom error message (default is: "can't be blank") + # * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>) + # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should + # occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>). The # method, proc or string should return or evaluate to a true or false value. - # * <tt>unless</tt> - Specifies a method, proc or string to call to determine if the validation should - # not occur (e.g. :unless => :skip_validation, or :unless => Proc.new { |user| user.signup_step <= 2 }). The + # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should + # not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>). The # method, proc or string should return or evaluate to a true or false value. - # def validates_presence_of(*attr_names) configuration = { :message => ActiveRecord::Errors.default_error_messages[:blank], :on => :save } configuration.update(attr_names.extract_options!) |