Class: ActiveRecord::Relation::QueryAttribute

Inherits:
ActiveModel::Attribute show all
Defined in:
activerecord/lib/active_record/relation/query_attribute.rb

Overview

:nodoc:

Instance Attribute Summary

Attributes inherited from ActiveModel::Attribute

#name, #type, #value_before_type_cast

Instance Method Summary collapse

Methods inherited from ActiveModel::Attribute

#==, #came_from_user?, #changed?, #changed_in_place?, #encode_with, #forgetting_assignment, from_database, from_user, #has_been_read?, #hash, #init_with, #initialize, #initialized?, null, #original_value, uninitialized, #value, with_cast_value, #with_type, #with_value_from_database, #with_value_from_user

Constructor Details

This class inherits a constructor from ActiveModel::Attribute

Instance Method Details

#infinite? ⇒ Boolean 


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# File 'activerecord/lib/active_record/relation/query_attribute.rb', line 28

def infinite?
  infinity?(value_before_type_cast) || infinity?(value_for_database)
rescue ::RangeError
end

#nil? ⇒ Boolean 


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# File 'activerecord/lib/active_record/relation/query_attribute.rb', line 20

def nil?
  unless value_before_type_cast.is_a?(StatementCache::Substitute)
    value_before_type_cast.nil? ||
      type.respond_to?(:subtype, true) && value_for_database.nil?
  end
rescue ::RangeError
end

#type_cast(value) ⇒ Object 


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# File 'activerecord/lib/active_record/relation/query_attribute.rb', line 8

def type_cast(value)
  value
end

#unboundable? ⇒ Boolean 


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# File 'activerecord/lib/active_record/relation/query_attribute.rb', line 33

def unboundable?
  if defined?(@_unboundable)
    @_unboundable
  else
    value_for_database unless value_before_type_cast.is_a?(StatementCache::Substitute)
    @_unboundable = nil
  end
rescue ::RangeError
  @_unboundable = type.cast(value_before_type_cast) <=> 0
end

#value_for_database ⇒ Object 


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# File 'activerecord/lib/active_record/relation/query_attribute.rb', line 12

def value_for_database
  @value_for_database ||= super
end

#with_cast_value(value) ⇒ Object 


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# File 'activerecord/lib/active_record/relation/query_attribute.rb', line 16

def with_cast_value(value)
  QueryAttribute.new(name, value, type)
end