demarches-normaliennes/app/graphql/loaders/champ.rb

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# references:
# https://github.com/Shopify/graphql-batch/blob/master/examples/record_loader.rb
module Loaders
class Champ < GraphQL::Batch::Loader
def initialize(dossier, private: false)
@where = { dossier: dossier, private: private }
end
def load(key)
super(key.to_i)
end
def perform(keys)
query(keys).each { |record| fulfill(record.stable_id, [record].compact) }
keys.each { |key| fulfill(key, []) unless fulfilled?(key) }
end
private
def query(keys)
::Champ.where(@where)
.includes(:type_de_champ)
.where(types_de_champ: { stable_id: keys })
end
end
end