Added missing migration file for issue#427 - Improved ticket number generator settings (just show necessary settings based on generator selection).

db/migrate/20161117000002_ticket_number_generator_issue_427.rb

@@ -0,0 +1,55 @@
+class TicketNumberGeneratorIssue427 < ActiveRecord::Migration
+  def up
+    # return if it's a new setup
+    return if !Setting.find_by(name: 'system_init_done')
+
+    setting = Setting.find_by(name: 'ticket_number')
+    setting.preferences = {
+      settings_included: %w(ticket_number_increment ticket_number_date),
+      controller: 'SettingsAreaTicketNumber',
+      permission: ['admin.ticket'],
+    }
+    setting.save!
+    setting = Setting.find_by(name: 'ticket_number_increment')
+    setting.preferences = {
+      permission: ['admin.ticket'],
+      hidden: true,
+    }
+    setting.save!
+    setting = Setting.find_by(name: 'ticket_number_date')
+    setting.preferences = {
+      permission: ['admin.ticket'],
+      hidden: true,
+    }
+
+    # just to make sure that value is saved correctly - https://github.com/zammad/zammad/issues/413
+    if setting.state_current['value'] == true || setting.state_current['value'] == false
+      setting.state_current['value'] = { 'checksum' => setting.state_current['value'] }
+    end
+    setting.save!
+
+    setting = Setting.find_by(name: 'ticket_hook_position')
+    setting.preferences = {
+      controller: 'SettingsAreaTicketHookPosition',
+      permission: ['admin.ticket'],
+    }
+    setting.options = {
+      form: [
+        {
+          display: '',
+          null: true,
+          name: 'ticket_hook_position',
+          tag: 'select',
+          translate: true,
+          options: {
+            'left'  => 'left',
+            'right' => 'right',
+            'none'  => 'none',
+          },
+        },
+      ],
+    }
+    setting.save!
+
+  end
+end