class SequelMapper::OneToManyAssociation
Attributes
foreign_key[R]
key[R]
mapping_name[R]
order[R]
proxy_factory[R]
Public Class Methods
new(mapping_name:, foreign_key:, key:, order:, proxy_factory:)
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# File lib/sequel_mapper/one_to_many_association.rb, line 5 def initialize(mapping_name:, foreign_key:, key:, order:, proxy_factory:) @mapping_name = mapping_name @foreign_key = foreign_key @key = key @order = order @proxy_factory = proxy_factory end
Public Instance Methods
build_proxy(data_superset:, loader:, record:)
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# File lib/sequel_mapper/one_to_many_association.rb, line 18 def build_proxy(data_superset:, loader:, record:) proxy_factory.call( query: build_query(data_superset, record), loader: loader, mapping_name: mapping_name, ) end
build_query(superset, record)
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# File lib/sequel_mapper/one_to_many_association.rb, line 45 def build_query(superset, record) order.apply( superset.where(foreign_key => record.fetch(key)) ) end
dump(parent_record, collection, &block)
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# File lib/sequel_mapper/one_to_many_association.rb, line 26 def dump(parent_record, collection, &block) foreign_key_pair = { foreign_key => parent_record.fetch(key), } collection.flat_map { |associated_object| block.call(mapping_name, associated_object, foreign_key_pair) } end
Also aliased as: delete
eager_superset(superset, associated_dataset)
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# File lib/sequel_mapper/one_to_many_association.rb, line 37 def eager_superset(superset, associated_dataset) Dataset.new( superset.where( foreign_key => associated_dataset.select(key) ).to_a ) end