Class: Arel::Nodes::Casted

Inherits:
NodeExpression show all
Defined in:
activerecord/lib/arel/nodes/casted.rb

Overview

:nodoc:

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Math

#&, #*, #+, #-, #/, #<<, #>>, #^, #|, #[email protected]

Methods included from OrderPredications

#asc, #desc

Methods included from AliasPredication

#as

Methods included from Predications

#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

Methods included from Expressions

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

Methods inherited from Node

#and, #equality?, #fetch_attribute, #invert, #not, #or, #to_sql

Methods included from FactoryMethods

#coalesce, #create_and, #create_false, #create_join, #create_on, #create_string_join, #create_table_alias, #create_true, #grouping, #lower

Constructor Details

#initialize(value, attribute) ⇒ Casted

Returns a new instance of Casted.


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# File 'activerecord/lib/arel/nodes/casted.rb', line 9

def initialize(value, attribute)
  @value     = value
  @attribute = attribute
  super()
end

Instance Attribute Details

#attributeObject (readonly)

Returns the value of attribute attribute.


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# File 'activerecord/lib/arel/nodes/casted.rb', line 6

def attribute
  @attribute
end

#valueObject (readonly) Also known as: value_before_type_cast

Returns the value of attribute value.


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# File 'activerecord/lib/arel/nodes/casted.rb', line 6

def value
  @value
end

Instance Method Details

#eql?(other) ⇒ Boolean Also known as: ==

Returns:

  • (Boolean)

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# File 'activerecord/lib/arel/nodes/casted.rb', line 29

def eql?(other)
  self.class == other.class &&
    self.value == other.value &&
    self.attribute == other.attribute
end

#hashObject


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# File 'activerecord/lib/arel/nodes/casted.rb', line 25

def hash
  [self.class, value, attribute].hash
end

#nil?Boolean

Returns:

  • (Boolean)

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# File 'activerecord/lib/arel/nodes/casted.rb', line 15

def nil?; value.nil?; end

#value_for_databaseObject


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# File 'activerecord/lib/arel/nodes/casted.rb', line 17

def value_for_database
  if attribute.able_to_type_cast?
    attribute.type_cast_for_database(value)
  else
    value
  end
end