Module: GraphQL::AssociationBatchResolver::MysqlColumnAggregator

Defined in:: lib/graphql/association_batch_resolver/column_aggregators/mysql_column_aggregator.rb

Class Method Summary collapse

Class Method Details

.aggregate(expression) ⇒ `Object`



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# File 'lib/graphql/association_batch_resolver/column_aggregators/mysql_column_aggregator.rb', line 6

def self.aggregate(expression)
  Arel::Nodes::NamedFunction.new('GROUP_CONCAT', expression)
end

.deserialize(column, type) ⇒ `Object`



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# File 'lib/graphql/association_batch_resolver/column_aggregators/mysql_column_aggregator.rb', line 10

def self.deserialize(column, type)
  column.split(',').map(&type.method(:deserialize))
end