slapos_web: Do not allow user change software_type using parameter form

Change software type can be catastrophic, so the parameter form has to restrict update of parameters in order to not allow user make a mistake.

This change is a complete of the commit f65752c5

master/bt5/slapos_web/PathTemplateItem/web_page_module/rjs_slapos_parameter_form_js.js

@@ -542,13 +542,13 @@
         $(to_hide).addClass("hidden-button");
       }
 
-
       this.options = options;
 
       return g.loadSoftwareJSON(g.options.json_url).push(function (json) {
         var option_index,
           option,
           option_selected = options.parameter.softwaretypeindex,
+          restricted_softwaretype = options.parameter.restricted_softwaretype,
           input = g.props.element.querySelector('select.slapos-software-type'),
           s_input = g.props.element.querySelector('input.slapos-serialisation-type');
 
@@ -580,7 +580,13 @@
               if (option_index === option_selected) {
                 option.selected = "selected";
               }
-              input.appendChild(option);
+              if (restricted_softwaretype === true) {
+                if (option.value === options.parameter.softwaretype) {
+                  input.appendChild(option);
+                }
+              } else {
+                input.appendChild(option);
+              }
             }
           }
         }

master/bt5/slapos_web/PathTemplateItem/web_page_module/rjs_slapos_parameter_form_js.xml

@@ -236,7 +236,7 @@
             </item>
             <item>
                 <key> <string>serial</string> </key>
-                <value> <string>950.44887.51427.32153</string> </value>
+                <value> <string>950.52652.28107.49237</string> </value>
             </item>
             <item>
                 <key> <string>state</string> </key>
@@ -254,7 +254,7 @@
                     </tuple>
                     <state>
                       <tuple>
-                        <float>1461811945.72</float>
+                        <float>1461814951.2</float>
                         <string>UTC</string>
                       </tuple>
                     </state>

master/bt5/slapos_web/SkinTemplateItem/portal_skins/vifib_hosting/Base_getRequestGadgetOptionDictAsJSON.py

@@ -6,7 +6,8 @@ request = context.REQUEST
 option_dict = {
   'parameter' : {
     'json_url': "%s.json" % context.getUrlString(),
-    'parameter_hash': base64.b64encode('<?xml version="1.0" encoding="utf-8" ?><instance></instance>')
+    'parameter_hash': base64.b64encode('<?xml version="1.0" encoding="utf-8" ?><instance></instance>'),
+    'restricted_softwaretype': False
     },
   }
 
@@ -20,5 +21,6 @@ if context.getPortalType() == "Hosting Subscription":
   option_dict['parameter']['softwaretype'] = context.getSourceReference()
   if context.getTextContent() is not None:
     option_dict['parameter']['parameter_hash'] = base64.b64encode(context.getTextContent())
+  option_dict['parameter']['restricted_softwaretype'] = True
 
 return json.dumps(option_dict)