lib/paper_trail.rb in jeremyw-paper_trail-1.2.2 vs lib/paper_trail.rb in jeremyw-paper_trail-1.2.3

@@ -14,76 +14,17 @@
   end
 
   def self.whodunnit=(value)
     @@whodunnit = value
   end
-  
-  # Walk the versions to construct an audit trail of the edits made 
-  # over time, and by whom.
-  def audit_trail options={}
-    options[:attributes_to_ignore] ||= %w(updated_at)
-    
-    audit_trail = []
 
-    versions_desc = versions_including_current_in_descending_order
-    
-    versions_desc.each_with_index do |version, index|
-      previous_version = versions_desc[index + 1]
-      break if previous_version.nil?
-
-      attributes_after = yaml_to_hash(version.object)
-      attributes_before = yaml_to_hash(previous_version.object)
-
-      # remove some attributes that we don't need to report
-      [attributes_before, attributes_after].each do |hash| 
-        hash.reject! { |k,v| k.in? Array(options[:attributes_to_ignore]) }
-      end
-      
-      audit_trail << { 
-        :event => previous_version.event,
-        :changed_by => transform_whodunnit(previous_version.whodunnit),
-        :changed_at => previous_version.created_at,
-        :changes => differences(attributes_before, attributes_after)
-        }
-    end
-
-    audit_trail
-  end
-
-  protected
-  
-  def transform_whodunnit(whodunnit)
-    whodunnit
-  end
-
   private
 
   def set_whodunnit
     @@whodunnit = lambda {
       self.send :current_user rescue nil
     }
   end
   
-  def yaml_to_hash(yaml)
-    return {} if yaml.nil?
-    YAML::load(yaml).to_hash
-  end
-
-  # Returns an array of hashes, where each hash specifies the +:attribute+, 
-  # value +:before+ the change, and value +:after+ the change.
-  def differences(before, after)
-    before.diff(after).keys.sort.inject([]) do |diffs, k|
-      diff = { :attribute => k, :before => before[k], :after => after[k] }
-      diffs << diff; diffs
-    end
-  end
-
-  def versions_including_current_in_descending_order
-    v = self.versions.dup
-    v << Version.new(:event => 'update', 
-      :object => object_to_string(self), 
-      :created_at => self.updated_at)
-    v.reverse # newest first
-  end
 end
 
 ActionController::Base.send :include, PaperTrail