Generic methods needed in numerous places throughout FeedTools
Nifty little method that takes a block and returns nil if recursion occurs or the block's result value if it doesn't.
# File lib/feed_tools/helpers/generic_helper.rb, line 40 def self.recursion_trap(lock_object, &block) if @lock_ids.nil? @lock_ids = [] end if !@lock_ids.include?(lock_object.object_id) @lock_ids << lock_object.object_id else return nil end begin result = block.call rescue SystemStackError result = nil end @lock_ids.delete(lock_object.object_id) return result end
Raises an exception if an invalid option has been specified to prevent misspellings from slipping through
# File lib/feed_tools/helpers/generic_helper.rb, line 31 def self.validate_options(valid_option_keys, supplied_option_keys) unknown_option_keys = supplied_option_keys - valid_option_keys unless unknown_option_keys.empty? raise "Unknown options: #{unknown_option_keys}" end end
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