comparison app/models/.svn/text-base/tracker.rb.svn-base @ 0:513646585e45

* Import Redmine trunk SVN rev 3859

+# redMine - project management software
+# Copyright (C) 2006  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 Tracker < ActiveRecord::Base
+  before_destroy :check_integrity  
+  has_many :issues
+  has_many :workflows, :dependent => :delete_all do
+    def copy(source_tracker)
+      Workflow.copy(source_tracker, nil, proxy_owner, nil)
+    end
+  end
+  
+  has_and_belongs_to_many :projects
+  has_and_belongs_to_many :custom_fields, :class_name => 'IssueCustomField', :join_table => "#{table_name_prefix}custom_fields_trackers#{table_name_suffix}", :association_foreign_key => 'custom_field_id'
+  acts_as_list
+
+  validates_presence_of :name
+  validates_uniqueness_of :name
+  validates_length_of :name, :maximum => 30
+  validates_format_of :name, :with => /^[\w\s\'\-]*$/i
+
+  def to_s; name end
+  
+  def <=>(tracker)
+    name <=> tracker.name
+  end
+
+  def self.all
+    find(:all, :order => 'position')
+  end
+  
+  # Returns an array of IssueStatus that are used
+  # in the tracker's workflows
+  def issue_statuses
+    if @issue_statuses
+      return @issue_statuses 
+    elsif new_record?
+      return []
+    end
+    
+    ids = Workflow.
+            connection.select_rows("SELECT DISTINCT old_status_id, new_status_id FROM #{Workflow.table_name} WHERE tracker_id = #{id}").
+            flatten.
+            uniq
+    
+    @issue_statuses = IssueStatus.find_all_by_id(ids).sort
+  end
+  
+private
+  def check_integrity
+    raise "Can't delete tracker" if Issue.find(:first, :conditions => ["tracker_id=?", self.id])
+  end
+end