Class: Squeel::Nodes::SubqueryJoin

Inherits:
Node
  • Object
show all
Defined in:
lib/squeel/nodes/subquery_join.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Node

#each, #grep

Constructor Details

#initialize(subquery, constraints, type = Squeel::InnerJoin) ⇒ SubqueryJoin

Returns a new instance of SubqueryJoin.

Raises:

  • (ArgumentError) 


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# File 'lib/squeel/nodes/subquery_join.rb', line 6

def initialize(subquery, constraints, type = Squeel::InnerJoin)
  raise ArgumentError,
    "subquery(#{subquery}) isn't an Squeel::Nodes::As" unless subquery.is_a?(As)

  raise ArgumentError,
    "constraints(#{constraints}) isn't a Squeel::Nodes::Node" unless constraints.is_a?(Node)

  self.subquery = subquery
  self.constraints = constraints
  self.type = type
end

Instance Attribute Details

#constraints ⇒ Object

Returns the value of attribute constraints.



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# File 'lib/squeel/nodes/subquery_join.rb', line 4

def constraints
  @constraints
end

#subquery ⇒ Object

Returns the value of attribute subquery.



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# File 'lib/squeel/nodes/subquery_join.rb', line 4

def subquery
  @subquery
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/squeel/nodes/subquery_join.rb', line 4

def type
  @type
end

Instance Method Details

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

Compare with other objects

Returns:

  • (Boolean) 


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# File 'lib/squeel/nodes/subquery_join.rb', line 34

def eql?(other)
  self.class.eql?(other.class) &&
  self.subquery.eql?(other.subquery) &&
  self.type.eql?(other.type) &&
  self.constraints.eql?(other.constraints)
end

#hash ⇒ Object

Implemented for equality testing



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# File 'lib/squeel/nodes/subquery_join.rb', line 19

def hash
  [subquery, type, constraints].hash
end

#inner ⇒ Object 



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# File 'lib/squeel/nodes/subquery_join.rb', line 23

def inner
  self.type = Squeel::InnerJoin
  self
end

#outer ⇒ Object 



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# File 'lib/squeel/nodes/subquery_join.rb', line 28

def outer
  self.type = Squeel::OuterJoin
  self
end