Class: ActiveRecord::Refined::AST::TruthValue

Inherits:
Predicate show all
Defined in:
lib/active_record/refined/ast.rb

Overview

IS TRUE, IS FALSE and their negations, which every adapter spells the same way and answers alike, NULL included.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Predicate

#!, #&, #|

Methods inherited from Node

#as, #asc, #desc

Constructor Details

#initialize(operand, value, negated: false) ⇒ TruthValue

Returns a new instance of TruthValue.



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# File 'lib/active_record/refined/ast.rb', line 1844

def initialize(operand, value, negated: false)
  @operand = operand
  @value = value
  @negated = negated
end

Instance Attribute Details

#negated ⇒ Object (readonly)

Returns the value of attribute negated.



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# File 'lib/active_record/refined/ast.rb', line 1842

def negated
  @negated
end

#operand ⇒ Object (readonly)

Returns the value of attribute operand.



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# File 'lib/active_record/refined/ast.rb', line 1842

def operand
  @operand
end

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/active_record/refined/ast.rb', line 1842

def value
  @value
end

Instance Method Details

#to_arel(table, model) ⇒ Object 



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# File 'lib/active_record/refined/ast.rb', line 1850

def to_arel(table, model)
  literal = value ? Arel::Nodes::True.new : Arel::Nodes::False.new
  Arel::Nodes::InfixOperation.new(negated ? "IS NOT" : "IS",
    to_arel_operand(operand, table, model), literal)
end