diff options
Diffstat (limited to 'activemodel/lib/active_model/validations/format.rb')
| -rw-r--r-- | activemodel/lib/active_model/validations/format.rb | 52 |
1 files changed, 32 insertions, 20 deletions
diff --git a/activemodel/lib/active_model/validations/format.rb b/activemodel/lib/active_model/validations/format.rb index d3faa8c6a6..dd87e312f9 100644 --- a/activemodel/lib/active_model/validations/format.rb +++ b/activemodel/lib/active_model/validations/format.rb @@ -42,50 +42,62 @@ module ActiveModel end module HelperMethods - # Validates whether the value of the specified attribute is of the correct form, going by the regular expression provided. - # You can require that the attribute matches the regular expression: + # Validates whether the value of the specified attribute is of the correct + # form, going by the regular expression provided.You can require that the + # attribute matches the regular expression: # # class Person < ActiveRecord::Base # validates_format_of :email, :with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\Z/i, :on => :create # end # - # Alternatively, you can require that the specified attribute does _not_ match the regular expression: + # Alternatively, you can require that the specified attribute does _not_ + # match the regular expression: # # class Person < ActiveRecord::Base # validates_format_of :email, :without => /NOSPAM/ # end # - # You can also provide a proc or lambda which will determine the regular expression that will be used to validate the attribute + # You can also provide a proc or lambda which will determine the regular + # expression that will be used to validate the attribute. # # class Person < ActiveRecord::Base # # Admin can have number as a first letter in their screen name - # validates_format_of :screen_name, :with => lambda{ |person| person.admin? ? /\A[a-z0-9][a-z0-9_\-]*\Z/i : /\A[a-z][a-z0-9_\-]*\Z/i } + # validates_format_of :screen_name, + # :with => lambda{ |person| person.admin? ? /\A[a-z0-9][a-z0-9_\-]*\Z/i : /\A[a-z][a-z0-9_\-]*\Z/i } # end # - # Note: use <tt>\A</tt> and <tt>\Z</tt> to match the start and end of the string, <tt>^</tt> and <tt>$</tt> match the start/end of a line. + # Note: use <tt>\A</tt> and <tt>\Z</tt> to match the start and end of the + # string, <tt>^</tt> and <tt>$</tt> match the start/end of a line. # - # You must pass either <tt>:with</tt> or <tt>:without</tt> as an option. In addition, both must be a regular expression - # or a proc or lambda, or else an exception will be raised. + # You must pass either <tt>:with</tt> or <tt>:without</tt> as an option. + # In addition, both must be a regular expression or a proc or lambda, or + # else an exception will be raised. # # Configuration options: # * <tt>:message</tt> - A custom error message (default is: "is invalid"). - # * <tt>:allow_nil</tt> - If set to true, skips this validation if the attribute is +nil+ (default is +false+). - # * <tt>:allow_blank</tt> - If set to true, skips this validation if the attribute is blank (default is +false+). - # * <tt>:with</tt> - Regular expression that if the attribute matches will result in a successful validation. - # This can be provided as a proc or lambda returning regular expression which will be called at runtime. - # * <tt>:without</tt> - Regular expression that if the attribute does not match will result in a successful validation. - # This can be provided as a proc or lambda returning regular expression which will be called at runtime. + # * <tt>:allow_nil</tt> - If set to true, skips this validation if the attribute + # is +nil+ (default is +false+). + # * <tt>:allow_blank</tt> - If set to true, skips this validation if the + # attribute is blank (default is +false+). + # * <tt>:with</tt> - Regular expression that if the attribute matches will + # result in a successful validation. This can be provided as a proc or lambda + # returning regular expression which will be called at runtime. + # * <tt>:without</tt> - Regular expression that if the attribute does not match + # will result in a successful validation. This can be provided as a proc or + # lambda returning regular expression which will be called at runtime. # * <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 + # * <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_format_of(*attr_names) validates_with FormatValidator, _merge_attributes(attr_names) end |