add edit function

vendor/built_in_modules/personal_journal/app/models/writing_journal.rb

@@ -12,7 +12,7 @@ class WritingJournal
   has_and_belongs_to_many :tags, :class_name => "PersonalJournalTag"
   has_and_belongs_to_many :journal_author_types
   has_and_belongs_to_many :journal_level_types
-
+  has_many :writing_journal_files, :autosave => true, :dependent => :destroy
   belongs_to :journal_paper_type
 
   field :year
@@ -31,7 +31,6 @@ class WritingJournal
   field :create_user_id, :type => BSON::ObjectId
   field :update_user_id, :type => BSON::ObjectId
 
-  has_many :writing_journal_files, :autosave => true, :dependent => :destroy
 
   accepts_nested_attributes_for :writing_journal_files, :allow_destroy => true
   after_save :save_writing_journal_files