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# Redmine - project management software

# Copyright (C) 2006-2011  Jean-Philippe Lang

#

# This program 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 2

# of the License, or (at your option) any later version.

#

# This program 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 this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

class JournalsController < ApplicationController

  before_filter :find_journal, :only => [:edit, :diff]

  before_filter :find_issue, :only => [:new]

  before_filter :find_optional_project, :only => [:index]

  before_filter :authorize, :only => [:new, :edit, :diff]

  accept_rss_auth :index

  menu_item :issues

  helper :issues

  helper :custom_fields

  helper :queries

  include QueriesHelper

  helper :sort

  include SortHelper

  def index

    retrieve_query

    sort_init 'id', 'desc'

    sort_update(@query.sortable_columns)

    if @query.valid?

      @journals = @query.journals(:order => "#{Journal.table_name}.created_on DESC",

                                  :limit => 25)

    end

    @title = (@project ? @project.name : Setting.app_title) + ": " + (@query.new_record? ? l(:label_changes_details) : @query.name)

    render :layout => false, :content_type => 'application/atom+xml'

  rescue ActiveRecord::RecordNotFound

    render_404

  end

  def diff

    @issue = @journal.issue

    if params[:detail_id].present?

      @detail = @journal.details.find_by_id(params[:detail_id])

    else

      @detail = @journal.details.detect {|d| d.prop_key == 'description'}

    end

    (render_404; return false) unless @issue && @detail

    @diff = Redmine::Helpers::Diff.new(@detail.value, @detail.old_value)

  end

  def new

    journal = Journal.find(params[:journal_id]) if params[:journal_id]

    if journal

      user = journal.user

      text = journal.notes

    else

      user = @issue.author

      text = @issue.description

    end

    # Replaces pre blocks with [...]

    text = text.to_s.strip.gsub(%r{<pre>((.|\s)*?)</pre>}m, '[...]')

    content = "#{ll(Setting.default_language, :text_user_wrote, user)}\n> "

    content << text.gsub(/(\r?\n|\r\n?)/, "\n> ") + "\n\n"

    render(:update) { |page|

      page.<< "$('notes').value = \"#{escape_javascript content}\";"

      page.show 'update'

      page << "Form.Element.focus('notes');"

      page << "Element.scrollTo('update');"

      page << "$('notes').scrollTop = $('notes').scrollHeight - $('notes').clientHeight;"

    }

  end

  def edit

    (render_403; return false) unless @journal.editable_by?(User.current)

    if request.post?

      @journal.update_attributes(:notes => params[:notes]) if params[:notes]

      @journal.destroy if @journal.details.empty? && @journal.notes.blank?

      call_hook(:controller_journals_edit_post, { :journal => @journal, :params => params})

      respond_to do |format|

        format.html { redirect_to :controller => 'issues', :action => 'show', :id => @journal.journalized_id }

        format.js { render :action => 'update' }

      end

    else

      respond_to do |format|

        format.html {

          # TODO: implement non-JS journal update

          render :nothing => true

        }

        format.js

      end

    end

  end

  private

  def find_journal

    @journal = Journal.find(params[:id])

    @project = @journal.journalized.project

  rescue ActiveRecord::RecordNotFound

    render_404

  end

  # TODO: duplicated in IssuesController

  def find_issue

    @issue = Issue.find(params[:id], :include => [:project, :tracker, :status, :author, :priority, :category])

    @project = @issue.project

  rescue ActiveRecord::RecordNotFound

    render_404

  end

end