Class: ActiveRecord::Associations::Preloader::Association::LoaderQuery

Inherits:
Object
  • Object
show all
Defined in:
activerecord/lib/active_record/associations/preloader/association.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(scope, association_key_name) ⇒ LoaderQuery

Returns a new instance of LoaderQuery.


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# File 'activerecord/lib/active_record/associations/preloader/association.rb', line 10

def initialize(scope, association_key_name)
  @scope = scope
  @association_key_name = association_key_name
end

Instance Attribute Details

#association_key_nameObject (readonly)

Returns the value of attribute association_key_name.


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# File 'activerecord/lib/active_record/associations/preloader/association.rb', line 8

def association_key_name
  @association_key_name
end

#scopeObject (readonly)

Returns the value of attribute scope.


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# File 'activerecord/lib/active_record/associations/preloader/association.rb', line 8

def scope
  @scope
end

Instance Method Details

#eql?(other) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'activerecord/lib/active_record/associations/preloader/association.rb', line 15

def eql?(other)
  association_key_name == other.association_key_name &&
    scope.table_name == other.scope.table_name &&
    scope.values_for_queries == other.scope.values_for_queries
end

#hashObject


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# File 'activerecord/lib/active_record/associations/preloader/association.rb', line 21

def hash
  [association_key_name, scope.table_name, scope.values_for_queries].hash
end

#load_records_for_keys(keys, &block) ⇒ Object


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# File 'activerecord/lib/active_record/associations/preloader/association.rb', line 38

def load_records_for_keys(keys, &block)
  scope.where(association_key_name => keys).load(&block)
end

#load_records_in_batch(loaders) ⇒ Object


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# File 'activerecord/lib/active_record/associations/preloader/association.rb', line 29

def load_records_in_batch(loaders)
  raw_records = records_for(loaders)

  loaders.each do |loader|
    loader.load_records(raw_records)
    loader.run
  end
end

#records_for(loaders) ⇒ Object


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# File 'activerecord/lib/active_record/associations/preloader/association.rb', line 25

def records_for(loaders)
  LoaderRecords.new(loaders, self).records
end