Class: GraphQL::Models::AssociationLoadRequest

Inherits:
Object
  • Object
show all
Defined in:
lib/graphql/models/association_load_request.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(base_model, association_name, context) ⇒ AssociationLoadRequest

Returns a new instance of AssociationLoadRequest.



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# File 'lib/graphql/models/association_load_request.rb', line 6

def initialize(base_model, association_name, context)
  @base_model = base_model
  @association = base_model.association(association_name)
  @context = context

  if reflection.is_a?(ActiveRecord::Reflection::ThroughReflection)
    fail ArgumentError, "You cannot batch-load a has_many :through association. Instead, load each association individually."
  end
end

Instance Attribute Details

#association ⇒ Object (readonly)

Returns the value of attribute association.



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# File 'lib/graphql/models/association_load_request.rb', line 4

def association
  @association
end

#base_model ⇒ Object (readonly)

Returns the value of attribute base_model.



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# File 'lib/graphql/models/association_load_request.rb', line 4

def base_model
  @base_model
end

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/graphql/models/association_load_request.rb', line 4

def context
  @context
end

Instance Method Details

#load ⇒ Object 



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# File 'lib/graphql/models/association_load_request.rb', line 23

def load
  loader.load(request).then do |result|
    result = result.first unless reflection.macro == :has_many
    Helpers.load_association_with(association, result)
    result
  end
end

#request ⇒ Object 



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# File 'lib/graphql/models/association_load_request.rb', line 16

def request
  AttributeLoader::Request.new(
    association.scope.where_values_hash,
    Helpers.orders_to_sql(association.scope.orders)
  )
end

#target_class ⇒ Object

Public members specific to an association load request



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# File 'lib/graphql/models/association_load_request.rb', line 35

def target_class
  case when reflection.polymorphic?
    base_model.send(reflection.foreign_type).constantize
  else
    reflection.klass
  end
end