diff options
Diffstat (limited to 'activemodel/lib/active_model/validations/presence.rb')
| -rw-r--r-- | activemodel/lib/active_model/validations/presence.rb | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/activemodel/lib/active_model/validations/presence.rb b/activemodel/lib/active_model/validations/presence.rb index 9a643a6f5c..018ef1e733 100644 --- a/activemodel/lib/active_model/validations/presence.rb +++ b/activemodel/lib/active_model/validations/presence.rb @@ -11,7 +11,8 @@ module ActiveModel end module HelperMethods - # Validates that the specified attributes are not blank (as defined by Object#blank?). Happens by default on save. Example: + # Validates that the specified attributes are not blank (as defined by + # Object#blank?). Happens by default on save. # # class Person < ActiveRecord::Base # validates_presence_of :first_name @@ -19,25 +20,28 @@ module ActiveModel # # 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 <tt>validates_inclusion_of :field_name, :in => [true, false]</tt>. + # If you want to validate the presence of a boolean field (where the real values + # are true and false), you will want to use + # <tt>validates_inclusion_of :field_name, :in => [true, false]</tt>. # - # This is due to the way Object#blank? handles boolean values: <tt>false.blank? # => true</tt>. + # This is due to the way Object#blank? handles boolean values: + # <tt>false.blank? # => true</tt>. # # Configuration options: # * <tt>:message</tt> - A custom error message (default is: "can't be blank"). # * <tt>:on</tt> - Specifies when this validation is active. Runs in all # validation contexts by default (+nil+), other options are <tt>:create</tt> # and <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. <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. + # * <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. <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. # * <tt>:strict</tt> - Specifies whether validation should be strict. - # See <tt>ActiveModel::Validation#validates!</tt> for more information - # + # See <tt>ActiveModel::Validation#validates!</tt> for more information. def validates_presence_of(*attr_names) validates_with PresenceValidator, _merge_attributes(attr_names) end |