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# frozen-string-literal: true
module Sequel
class Dataset
# This module implements methods to support deprecated use of extensions registered
# not using a module. In such cases, for backwards compatibility, Sequel has to use
# a singleton class for the dataset.
module DeprecatedSingletonClassMethods
# Load the extension into a clone of the receiver.
def extension(*a)
c = _clone(:freeze=>false)
c.send(:_extension!, a)
c.freeze
end
# Extend the cloned of the receiver with the given modules, instead of the default
# approach of creating a subclass of the receiver's class and including the modules
# into that.
def with_extend(*mods, &block)
c = _clone(:freeze=>false)
c.extend(*mods) unless mods.empty?
c.extend(Sequel.set_temp_name(DatasetModule.new(&block)){"Sequel::Dataset::_DatasetModule(#{block.source_location.join(':')})"}) if block
c.freeze
end
private
# Load the extensions into the receiver.
def _extension!(exts)
Sequel.extension(*exts)
exts.each do |ext|
if pr = Sequel.synchronize{EXTENSIONS[ext]}
pr.call(self)
else
raise(Error, "Extension #{ext} does not have specific support handling individual datasets (try: Sequel.extension #{ext.inspect})")
end
end
self
end
end
end
end
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