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# frozen_string_literal: true
# Interface to expose todos for the current_user on the `object`
module Types
module CurrentUserTodos
include BaseInterface
field_class Types::BaseField
field :current_user_todos, Types::TodoType.connection_type,
description: 'To-do items for the current user.',
null: false do
argument :state, Types::TodoStateEnum,
description: 'State of the to-do items.',
required: false
end
def current_user_todos(state: nil)
state ||= %i[done pending] # TodosFinder treats a `nil` state param as `pending`
key = [state, unpresented.class.name]
BatchLoader::GraphQL.for(unpresented).batch(default_value: [], key: key) do |targets, loader, args|
state, klass_name = args[:key]
targets_by_id = targets.index_by(&:id)
ids = targets_by_id.keys
results = TodosFinder.new(current_user, state: state, type: klass_name, target_id: ids).execute
by_target_id = results.group_by(&:target_id)
by_target_id.each do |target_id, todos|
target = targets_by_id[target_id]
todos.each { _1.target = target } # prevent extra loads
loader.call(target, todos)
end
end
end
end
end
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