Class: BabySqueel::JoinDependency

Inherits:
Object
  • Object
show all
Defined in:
lib/baby_squeel/join_dependency.rb

Instance Method Summary collapse

Constructor Details

#initialize(scope, associations = []) ⇒ JoinDependency

Returns a new instance of JoinDependency.



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# File 'lib/baby_squeel/join_dependency.rb', line 3

def initialize(scope, associations = [])
  @scope = scope
  @associations = associations
end

Instance Method Details

#constraints ⇒ Object

Converts an array of BabySqueel::Associations into an array of Arel join nodes.

Each association is built individually so that the correct Arel join node will be used for each individual association.



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# File 'lib/baby_squeel/join_dependency.rb', line 13

def constraints
  @associations.each.with_index.inject([]) do |joins, (assoc, i)|
    inject @associations[0..i], joins, assoc._join
  end
end