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module Types
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class BaseObject < GraphQL::Types::Relay::BaseObject
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implements GraphQL::Relay::Node.interface
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connection_type_class Connections::BaseConnection
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class << self
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def field(*args, **kwargs, &block)
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null = kwargs.key?(:null) ? kwargs[:null] : nullable?(args.first)
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super(*args, **kwargs.except(:null), null: null, &block)
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end
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def timestamps
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field :created_at, GraphQL::Types::ISO8601DateTime
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field :updated_at, GraphQL::Types::ISO8601DateTime
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end
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def has_many(name, type, resolver: nil, **kwargs)
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if resolver
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field name, type.connection_type, resolver: resolver, **kwargs.except(:resolver)
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else
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field name, type.connection_type,
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resolve: proc { |object| CollectionLoader.for(object.class, name).load(object) },
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**kwargs.except(:resolver)
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end
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end
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def belongs_to(name, type, resolver: nil, foreign_key: nil, **kwargs)
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if resolver
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field name, type, resolver: resolver, **kwargs.except(:resolver, :foreign_key)
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else
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field name, type,
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resolve: (proc do |object|
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foreign_key ||= object.class.reflect_on_association(name)&.foreign_key
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raise "Could not determine foreign key for #{name}" unless foreign_key
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RecordLoader.for(type.model_class).load(object.send(foreign_key))
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end),
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**kwargs.except(:resolver, :foreign_key)
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end
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end
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def model_class(new_model_class = nil)
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if new_model_class
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@model_class = new_model_class
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else
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@model_class ||= "::#{self.to_s.demodulize}".safe_constantize
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end
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end
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private
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def nullable?(attribute)
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!GraphqlAttribute.for(model_class).required?(attribute)
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end
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end
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end
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end
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