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Contents
# Refer to the comments in SingleCopyEnforcer to understand why we need
# this class.
#
# Also note that the way this class is implemented, all records being copied
# are kept in memory. For copying extremely large record trees, memory
# could be an issue, in which case this algorithm may need refactoring.
#
module Copyable
class CopyRegistry
class << self
def register(original_record, new_record)
@registry ||= {}
key = make_hash(record: original_record)
@registry[key] = new_record
end
def already_copied?(options)
fetch_copy(options).present?
end
def fetch_copy(options)
@registry ||= {}
key = make_hash(options)
@registry[key]
end
def clear
@registry = {}
end
private
def make_hash(options)
if options[:record]
id = options[:record].id
klass = options[:record].class
else
id = options[:id]
klass = options[:class]
end
raise "Record has no id" if id.nil?
"#{klass.name}-#{id}"
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems