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# Maps parents_symbols to build association chain. | |
# | |
# If the parents_symbols find :polymorphic, it goes through the | |
# params keys to see which polymorphic parent matches the given params. | |
# | |
# When optional is given, it does not raise errors if the polymorphic | |
# params are missing. | |
# | |
def symbols_for_association_chain #:nodoc: | |
polymorphic_config = resources_configuration[:polymorphic] |