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         validate :check_relations
  15         after_save :update_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
  31       def publication_names
  32         if not @pubnames
  33           self.publications.map { |pub| pub.name }
  34         else
  35           @pubnames
  36         end
  37       end
  38
  39       def publication_names=(value)
  40         @pubnames = value.sort!
  41       end
  42
  43       def publications
  44         Publication.all(
  45           :joins =>
  46             "JOIN issue_publications ON (issue_publications.publication_id = publications.id)",
  47           :conditions =>
  48             ["issue_publications.issue_id = ? ", self.id] )
  49       end
  50
  51       def check_relations
  52         current_names = self.publication_names
  53         non_existant = []
  54
  55         pubs =  Publication.find_all_by_name(current_names).map {|i| i.name}
  56         missing = current_names.select {|name| not pubs.include?name }
  57
  58         if not missing.empty?
  59           errors.add("publications", "Missing publication(s): " + missing.join(', '))
  60         end
  61      end
  62
  63      def update_relations
  64         self.reload
  65         old = self.publications
  66         current_names = self.publication_names
  67
  68         # delete unused relations
  69         deleted = old.select { |v| not (current_names.include?(v.name)) }
  70         deleted.each do |pub|
  71           IssuePublication.delete_all(["issue_publications.issue_id = ? AND issue_publications.publication_id = ?", self.id, pub.id])
  72         end
  73
  74         current_names.each do |name|
  75             pub = Publication.find_by_name(name)
  76             IssuePublication.find_or_create_by_publication_id_and_issue_id(pub.id, self.id)
  77         end
  78
  79         return true
  80      end
  81
  82     end
  83   end
  84 end