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Class: Arel::Attributes::Attribute

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::Struct
Instance Chain:
self, ::Arel::Math, ::Arel::OrderPredications, ::Arel::AliasPredication, ::Arel::Predications, ::Arel::Expressions, ::Struct
Inherits: Struct
Defined in: activerecord/lib/arel/attributes/attribute.rb

Instance Attribute Summary

Instance Method Summary

::Arel::Math - Included

#&, #*, #+, #-, #/, #<<, #>>, #^, #|, #~@

::Arel::OrderPredications - Included

#asc, #desc

::Arel::AliasPredication - Included

#as

::Arel::Predications - Included

#between, #concat, #contains, #does_not_match, #does_not_match_all, #does_not_match_any, #does_not_match_regexp, #eq, #eq_all, #eq_any, #gt, #gt_all, #gt_any, #gteq, #gteq_all, #gteq_any, #in, #in_all, #in_any, #is_distinct_from, #is_not_distinct_from, #lt, #lt_all, #lt_any, #lteq, #lteq_all, #lteq_any, #matches, #matches_all, #matches_any, #matches_regexp, #not_between, #not_eq, #not_eq_all, #not_eq_any, #not_in, #not_in_all, #not_in_any, #overlaps, #quoted_array, #when, #grouping_all, #grouping_any, #infinity?, #open_ended?, #quoted_node, #unboundable?

::Arel::Expressions - Included

#average, #count, #extract, #maximum, #minimum, #sum

::Struct - Inherited

#as_json

Instance Attribute Details

#able_to_type_cast? ⇒ Boolean (readonly)

[ GitHub ] 

  


# File 'activerecord/lib/arel/attributes/attribute.rb', line 26



def able_to_type_cast?
  relation.able_to_type_cast?
end


  








  

    #name   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/attributes/attribute.rb', line 5



class Attribute < Struct.new :relation, :name
      include Arel::Expressions
      include Arel::Predications
      include Arel::AliasPredication
      include Arel::OrderPredications
      include Arel::Math

      def type_caster
relation.type_for_attribute(name)


  








  

    #relation   (rw)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/attributes/attribute.rb', line 5



class Attribute < Struct.new :relation, :name
      include Arel::Expressions
      include Arel::Predications
      include Arel::AliasPredication
      include Arel::OrderPredications
      include Arel::Math

      def type_caster
relation.type_for_attribute(name)


  







Instance Method Details



  

    #lower  
  



  

    

Create a node for lowering this attribute


  



  [ GitHub ]


  

  


# File 'activerecord/lib/arel/attributes/attribute.rb', line 18



def lower
  relation.lower self
end


  








  

    #type_cast_for_database(value)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/attributes/attribute.rb', line 22



def type_cast_for_database(value)
  relation.type_cast_for_database(name, value)
end


  








  

    #type_caster  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/arel/attributes/attribute.rb', line 12



def type_caster
  relation.type_for_attribute(name)
end