', sortable: true, width: 50, filter: true, filterType: 'date'}, { dataIndex: 'message', header: '<%=t "common.message_header" %>', id: 'systemMessagesGrid-message', sortable: false, width: 140, filter: true, filterType: 'string'}, { dataIndex: 'acknowledged', header: '<%=t ".acknowledged" %>', sortable: true, width: 30, filter: true, filterType: 'boolean', yesText: '<%=t "common.key_yes" %>', noText: '<%=t "common.key_no" %>'}, { dataIndex: 'acknowledged_by', header: '<%=t ".acknowledged_by" %>', sortable: true, width: 80, filter: true, filterType: 'string'}, { dataIndex: 'acknowledged_date', header: '<%=t ".acknowledged_date" %>', sortable: true, width: 50, filter: true, filterType: 'date'}]" menuCfg="{items: [{ iconCls: 'icon_acknowledge', text: '<%=t ".acknowledge" %>', actsOn: 'many', actionUrl: '<%= acknowledge_msg_system_messages_path(:ids => -1) %>', confirmText: '<%=t ".acknowledge_confirmation" %>', ajaxRequest: true, usePopup: false } ]}" sortField="{field: 'timestamp', direction: 'DESC'}" tbar="{items: [{ iconCls: 'icon_acknowledge', text: '<%=t ".acknowledge" %>', actsOn: 'many', actionUrl: '<%= acknowledge_msg_system_messages_path %>', confirmText: '<%=t ".acknowledge_confirmation" %>', ajaxRequest: true, usePopup: false }]}" url="<%= system_messages_path(:format => 'json') %>">