class Mongoid::SimpleAudit::Modification
Public Instance Methods
delta(other_change_log)
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Computes the differences of the change logs between two audits.
Returns a hash containing arrays of the form
{ :key_1 => [<value_in_other_change_log>, <value_in_this_audit>], :key_2 => [<value_in_other_change_log>, <value_in_this_audit>], }
# File lib/mongoid/simple_audit/modification.rb, line 21 def delta(other_change_log) return self.change_log if other_change_log.nil? {}.tap do |d| # first for keys present only in this audit (self.change_log.keys - other_change_log.change_log.keys).each do |k| d[k] = [nil, self.change_log[k]] end # .. then for keys present only in other audit (other_change_log.change_log.keys - self.change_log.keys).each do |k| d[k] = [other_change_log.change_log[k], nil] end # .. finally for keys present in both, but with different values self.change_log.keys.each do |k| if self.change_log[k] != other_change_log.change_log[k] d[k] = [other_change_log.change_log[k], self.change_log[k]] end end end end
symbolized_change_log()
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as mongoid stores hashes keys as strings, here us a way to get the change log symbolized TODO: refactor
# File lib/mongoid/simple_audit/modification.rb, line 49 def symbolized_change_log sym_log = self.change_log.dup sym_log = sym_log.symbolize_keys sym_log.each{ |k,v| sym_log[k] = v.symbolize_keys if v.is_a? Hash } sym_log end