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# This file is a part of redmine_tags

# redMine plugin, that adds tagging support.

#

# Copyright (c) 2010 Eric Davis

# Copyright (c) 2010 Aleksey V Zapparov AKA ixti

#

# redmine_tags is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# redmine_tags is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with redmine_tags.  If not, see <http://www.gnu.org/licenses/>.

module RedmineTags

  module Hooks

    class ModelIssueHook < Redmine::Hook::ViewListener

      def controller_issues_edit_before_save(context={})

        save_tags_to_issue(context, true)

      end

      def controller_issues_bulk_edit_before_save(context={})

        save_tags_to_issue(context, true)

      end

      # Issue has an after_save method that calls reload (update_nested_set_attributes)

      # This makes it impossible for a new record to get a tag_list, it's

      # cleared on reload. So instead, hook in after the Issue#save to update

      # this issue's tag_list and call #save ourselves.

      def controller_issues_new_after_save(context={})

        save_tags_to_issue(context, false)

        context[:issue].save

      end

      def save_tags_to_issue(context, create_journal)

        params = context[:params]

        if params && params[:issue] && !params[:issue][:tag_list].nil?

          old_tags = context[:issue].tag_list.to_s

          context[:issue].tag_list = params[:issue][:tag_list]

          new_tags = context[:issue].tag_list.to_s

          if create_journal and not (old_tags == new_tags || context[:issue].current_journal.blank?)

            context[:issue].current_journal.details << JournalDetail.new(:property => 'attr',

                                                                         :prop_key => 'tag_list',

                                                                         :old_value => old_tags,

                                                                         :value => new_tags)

          end

        end

      end

    end

  end

end