Added time zone support for slas.

app/assets/javascripts/app/controllers/_application_controller_form.js.coffee

@@ -221,6 +221,27 @@ class App.ControllerForm extends App.Controller
     else if attribute.tag is 'select'
       item = $( App.view('generic/select')( attribute: attribute ) )
 
+    # timezone
+    else if attribute.tag is 'timezone'
+      attribute.options = []
+      timezones = App.Config.get('timezones')
+
+      # build list based on config
+      for timezone_value, timezone_diff of timezones
+        if timezone_diff > 0
+          timezone_diff = '+' + timezone_diff
+        item =
+          name:  "#{timezone_value} (GMT#{timezone_diff})"
+          value: timezone_value
+        attribute.options.push item
+
+      # finde selected item of list
+      for record in attribute.options
+        if record.value is attribute.value
+          record.selected = 'selected'
+
+      item = $( App.view('generic/select')( attribute: attribute ) )
+
     # select
     else if attribute.tag is 'input_select'
       item = $('<div class="input_select"></div>')

app/assets/javascripts/app/models/sla.js.coffee

@@ -1,5 +1,5 @@
 class App.Sla extends App.Model
-  @configure 'Sla', 'name', 'first_response_time', 'update_time', 'close_time', 'condition', 'data', 'active'
+  @configure 'Sla', 'name', 'first_response_time', 'update_time', 'close_time', 'condition', 'timezone', 'data', 'active'
   @extend Spine.Model.Ajax
   @url: 'api/slas'
   @configure_attributes = [
@@ -8,6 +8,7 @@ class App.Sla extends App.Model
     { name: 'update_time',         display: 'Update Time',         tag: 'input',    type: 'text', limit: 100, null: true, 'class': 'span4', note: 'In minutes, only business times are counted.' },
     { name: 'close_time',          display: 'Solution Time',       tag: 'input',    type: 'text', limit: 100, null: true, 'class': 'span4', note: 'In minutes, only business times are counted.' },
     { name: 'condition',           display: 'Conditions where SLA is used', tag: 'ticket_attribute_selection', null: true, class: 'span4' },
+    { name: 'timezone',            display: 'Timezone',            tag: 'timezone', null: true, class: 'span4' },
     {
       name:    'data'
       display: 'Business Times'

app/controllers/application_controller.rb

@@ -202,6 +202,22 @@ class ApplicationController < ActionController::Base
     Setting.select('name').where( :frontend => true ).each { |setting|
       config[setting.name] = Setting.get(setting.name)
     }
+
+    # get all time zones
+    config['timezones'] = {}
+    TZInfo::Timezone.all.each { |t|
+
+        # ignore the following time zones
+        next if t.name =~ /^GMT/
+        next if t.name =~ /^Etc/
+        next if t.name =~ /^MET/
+        next if t.name =~ /^MST/
+        next if t.name =~ /^ROC/
+        next if t.name =~ /^ROK/
+        diff = t.current_period.utc_total_offset / 60 /60
+        config['timezones'][ t.name ] = diff
+    }
+
     return config
   end
 

db/migrate/20130606070432_sla_timezone.rb

@@ -0,0 +1,9 @@
+class SlaTimezone < ActiveRecord::Migration
+  def up
+    add_column :slas, :timezone,     :string, :limit => 50, :null => true
+  end
+
+  def down
+    remove_column :slas, :timezone
+  end
+end