[SOLVED] looking for a way to test result before show

[ThierryC]

Hi,
i have a application that is using the Metaform plugin to generate dynamic form fields.
in this application, some fields are displayed when opening a ticket.
(the fields to be displayed are dynamically selected by the user)
everything works, except that i would like to avoid the display of the window when no fields are available... (now a blank window is displayed)
(see attached screencaptures)

i'd like to be able to test something the decide whether or not i perform a .show() or a .hide()

Here's the definition of the window

    var windowTemplate = new Ext.Window(
	 	{id:'windowTemplate',
		  x: 800,
   		  y: 100,
   		  height: 480,
    	  width: 400,  
    	  closeAction: 'hide',
    	  closable: false,
    	  items: 
    		{xtype:'metaform',
    		 id: 'IdMeta',
    		 autoScroll: true,
    		 url:'vvcall.pgm',		 
     		       baseParams:{pgm:'TDTK01R',
    				  	action:'getForm',
 					machine: machineTemplate
 						}
		}
	 }
	);

The function to load/show the window

var fcmachineTemplate = function(machineTmpl) {
	machineTemplate=machineTmpl;
	Ext.getCmp('IdMeta').getForm().baseParams.machine = machineTemplate;
		
        Ext.getCmp('IdMeta').getForm().load();
	windowTemplate.show();
	};

Location where the function is called

	....
	fcmachineTemplate(data.TKCMACH);
...

[eweiler]

I would suggest you interrogate data.TKCMACH before calling fcmachineTemplate. If you don't find what you want, then you can take a different route, or maybe pop up a window that says there are no fields configured for display.

[ThierryC]

i cannot test that... the data.TKMACH is used a key to get the data from iseries.

it should indeed be possible to test the result from the vvcall. before the .show is performed.. but i don't know how to ...

[eweiler]

You can see what the metaform extends and there may be a load listener that you can interrogate. Otherwise a similar type of listener if it is not extending Ext.form.FormPanel.

Worst case scenario, you'd have to customize the metaform extension you downloaded. Where did you get it from if I want to check it out?

[ThierryC]

the metaform is an extension found from Extjs.eu

maybe it is easier if we could setup a webmeeting?

[eweiler]

Sure. I'll go ahead and send you an email.

[eweiler]

Actually, I don't have your email, can you PM me your contact info?

[eweiler]

This was solved via ThierryC's trouble shooting. He confirmed over the phone he was making a separate call to determine validity prior to the call at issue.

[eweiler]

I spoke with Thierry offline, and he was able to solve this one:

We did not have to change anything in the metaform.
 
The metaform itself extends the  Ext.form.FormPanel..
 
 
This is the way we solved it�; it needs an extra ajax call, but it works�; and that�s whats counts..
 
thx
 
 
var fcmachineTemplate = function(machineTmpl){
  machineTemplate=machineTmpl;
  Ext.Ajax.request({
     url:'vvcall.pgm',
     params: {
       pgm: 'TDTK01R',   
       action: 'getFormVal',
       machine: machineTemplate
     },
     success: function(response) {
        var check = response.responseText;
           if (check) {
             var data = Ext.util.JSON.decode(response.responseText);
                if (data.show == 'J'){
                  Ext.getCmp('IdMeta').getForm().baseParams.machine = machineTemplate;
                  Ext.getCmp('IdMeta').getForm().load();
                  windowTemplate.show();   
                 }else {
                   windowTemplate.hide();
                 }
             }
          },
          failure: function(response) {
             windowTemplate.hide();
          }
      });
 };