slapos_jio: Improve error message from status gadget

   In this way, the debug becomes easier to be notified.

master/bt5/slapos_jio/PathTemplateItem/web_page_module/rjs_gadget_slapos_status_js.js

-/*globals console, window, rJS, i18n, domsugar */
+/*globals console, window, rJS, domsugar, JSON */
 /*jslint indent: 2, nomen: true, maxlen: 80 */
 
-(function (window, rJS, domsugar) {
+(function (window, rJS, domsugar, JSON) {
   "use strict";
   var gadget_klass = rJS(window);
 
@@ -338,7 +338,7 @@
 
     .onLoop(function () {
       var gadget = this;
-      if (gadget.state.jio_key) {
+      if (typeof gadget.state.jio_key === 'string' && gadget.state.jio_key !== '') {
         return gadget.jio_get(gadget.state.jio_key)
           .push(function (result) {
             var state_dict = result.news || {};
@@ -346,6 +346,10 @@
             return gadget.changeState(state_dict);
           });
       }
+      throw new Error(
+        'jio_key dont contains a proper value: ' +
+          JSON.stringify(gadget.state.jio_key)
+      );
     }, 300000)
 
     .onStateChange(function () {
@@ -360,4 +364,4 @@
       return this.changeState(state_dict);
     });
 
-}(window, rJS, domsugar));
\ No newline at end of file
+}(window, rJS, domsugar, JSON));
\ No newline at end of file

master/bt5/slapos_jio/PathTemplateItem/web_page_module/rjs_gadget_slapos_status_js.xml

@@ -278,7 +278,7 @@
                   </item>
                   <item>
                       <key> <string>serial</string> </key>
-                      <value> <string>1001.50668.64434.580</string> </value>
+                      <value> <string>1006.58340.40727.23620</string> </value>
                   </item>
                   <item>
                       <key> <string>state</string> </key>
@@ -298,7 +298,7 @@
                           </tuple>
                           <state>
                             <tuple>
-                              <float>1660581838.54</float>
+                              <float>1680031759.77</float>
                               <string>UTC</string>
                             </tuple>
                           </state>