redmine/redmine_publications/lib/redmine_publications/issue_patch.rb

   1 module RedminePublications
   2   # Patches Redmine's Issues dynamically. Adds a +after_save+ filter.
   3
   4   module IssuePatch
   5     def self.included(base) # :nodoc:
   6       base.extend(ClassMethods)
   7
   8       base.send(:include, InstanceMethods)
   9
  10       # Same as typing in the class
  11       base.class_eval do
  12         unloadable # Send unloadable so it will not be unloaded in development
  13
  14         after_save :update_relations
  15         # after_destroy :check_relations
  16
  17         # Add visible to Redmine 0.8.x
  18         unless respond_to?(:visible)
  19           named_scope :visible, lambda {|*args| { :include => :project,
  20               :conditions => Project.allowed_to_condition(args.first || User.current, :view_issues) } }
  21         end
  22       end
  23
  24     end
  25
  26     module ClassMethods
  27     end
  28
  29     module InstanceMethods
  30       def source_files
  31         if not @source_files
  32           @source_files = self.lookup_source_files.map { |pub| pub.source_file }
  33         end
  34         @source_files
  35       end
  36
  37       def source_files=(value)
  38         @source_files = value
  39       end
  40
  41       def lookup_source_files
  42         Publication.all(
  43           :joins =>
  44             "JOIN issue_publications ON (issue_publications.publication_id = publications.id)",
  45           :conditions =>
  46             [" issue_publications.issue_id = ? ", self.id] )
  47       end
  48
  49       def update_relations
  50         self.reload
  51         current_assocs = self.lookup_source_files
  52         new_assocs_names = self.source_files.split(' ')
  53
  54         # delete unused relations
  55         deleted = current_assocs.select { |v| not (new_assocs_names.include?(v.source_file)) }
  56         deleted.each { |pub| IssuePublication.delete_all(
  57           :contitions => ["issue_publications.issue_id = ? AND issue_publicatons.publication_id = ?",
  58                 self.id, pub.id]) }
  59
  60         new_assocs_names.each do |name|
  61                 pub = Publication.find_or_create_by_source_file(name)
  62                 IssuePublication.find_or_create_by_publication_id_and_issue_id(pub.id, self.id)
  63         end
  64
  65         return true
  66       end
  67
  68     end
  69   end
  70 end