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Class: ActiveModel::Error

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Subclasses:
NestedError, ActiveRecord::Associations::NestedError
Inherits: Object
Defined in: activemodel/lib/active_model/error.rb

Overview

Represents one single error

Constant Summary

Class Attribute Summary

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(base, attribute, type = :invalid, **options) ⇒ Error

[ GitHub ] 

  


# File 'activemodel/lib/active_model/error.rb', line 103



def initialize(base, attribute, type = :invalid, **options)
  @base = base
  @attribute = attribute
  @raw_type = type
  @type = type || :invalid
  @options = options
end


  







Class Attribute Details



  

    .i18n_customize_full_message   (rw)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 13



class_attribute :i18n_customize_full_message, default: false


  








  

    .i18n_customize_full_message?  ⇒ Boolean  (rw)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 13



class_attribute :i18n_customize_full_message, default: false


  







Instance Attribute Details



  

    #attribute   (readonly)
  



  

    

The attribute of #base which the error belongs to


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 121



attr_reader :attribute


  








  

    #base   (readonly)
  



  

    

The object which the error belongs to


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 119



attr_reader :base


  








  

    #i18n_customize_full_message   (rw)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 13



class_attribute :i18n_customize_full_message, default: false


  








  

    #i18n_customize_full_message?  ⇒ Boolean  (rw)
  

  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 13



class_attribute :i18n_customize_full_message, default: false


  








  

    #options   (readonly)
  



  

    

The options provided when calling errors#add


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 128



attr_reader :options


  








  

    #raw_type   (readonly)
  



  

    

The raw value provided as the second parameter when calling errors#add


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 126



attr_reader :raw_type


  








  

    #type   (readonly)
  



  

    

The type of error, defaults to :invalid unless specified


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 123



attr_reader :type


  







Instance Method Details



  

    #detail  
  



  

    

Alias for #details.


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 152



alias_method :detail, :details


  








  

    #details  
    Also known as: #detail
  



  

    

Returns the error details.



error = ActiveModel::Error.new(person, :name, :too_short, count: 5)
error.details
# => { error: :too_short, count: 5 }


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 149



def details
  { error: raw_type }.merge(options.except(*CALLBACKS_OPTIONS + MESSAGE_OPTIONS))
end


  








  

    #eql?(other)  
  



  

    

Alias for #==.


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 193



alias eql? ==


  








  

    #full_message  
  



  

    

Returns the full error message.



error = ActiveModel::Error.new(person, :name, :too_short, count: 5)
error.full_message
# => "Name is too short (minimum is 5 characters)"


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 159



def full_message
  self.class.full_message(attribute, message, @base)
end


  








  

    #match?(attribute, type = nil, **options)  ⇒ Boolean 
  



  

    

See if error matches provided #attribute, #type, and #options.



Omitted params are not checked for a match.


  





  


  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 166



def match?(attribute, type = nil, **options)
  if @attribute != attribute || (type && @type != type)
    return false
  end

  options.each do |key, value|
    if @options[key] != value
      return false
    end
  end

  true
end


  








  

    #message  
  



  

    

Returns the error message.



error = ActiveModel::Error.new(person, :name, :too_short, count: 5)
error.message
# => "is too short (minimum is 5 characters)"


  



  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 135



def message
  case raw_type
  when Symbol
    self.class.generate_message(attribute, raw_type, @base, options.except(*CALLBACKS_OPTIONS))
  else
    raw_type
  end
end


  








  

    #strict_match?(attribute, type, **options)  ⇒ Boolean 
  



  

    

See if error matches provided #attribute, #type, and #options exactly.



All params must be equal to Error’s own attributes to be considered a strict match.


  





  


  [ GitHub ]


  

  


# File 'activemodel/lib/active_model/error.rb', line 184



def strict_match?(attribute, type, **options)
  return false unless match?(attribute, type)

  options == @options.except(*CALLBACKS_OPTIONS + MESSAGE_OPTIONS)
end