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Unable to display Gridx from JSON data

I have written a simple program to fetch data from an external JSON file and display it in Dojo Gridx. However, it is not working.
Dojo Code:
require(["dojo/text!json_to_gridx/js/data.json", "dojo/json", "gridx/Grid"], function(myJSONData, JSON, Gridx) {
// fetch and parse JSON
var myJSON = JSON.parse(myJSONData);
console.log(myJSON); // working fine
// create datastore
var store = myJSON; // should this be changed?
// create Gridx
if(!window.grid){
console.log('working'); // working fine
gridx = new Gridx({
id: 'grid',
store: store,
structure: [
{id: 'name', field: 'name', name: 'Name'},
{id: 'company', field: 'company', name: 'Company'}
]
});
console.log('working2'); // does not work
gridx.placeAt('gridContainer');
gridx.startup();
}
});
JSON:
[{"name": "Rahul Desai","company": "PSL"},{"name": "Alston","company": "PSL"}]
I am getting an error:
TypeError: cacheClass is not a constructor Model.js
How do I fix this? Please help!
EDIT: I was being suggested to use Memory Store and "gridx/core/model/cache/Async"
Now, the code for creating the Gridx looks like:
this._disksGrid = new Gridx({
id: 'grid',
cacheClass: asyncCache,
store: store,
structure: [
{id: 'name', field: 'name', name: 'Name'},
{id: 'company', field: 'company', name: 'Company'}
]
});
No error now, but the Gridx is not displayed. Any idea why?
EDIT 2: Turns out I was starting wrong grid in previous edit. Now the Gridx shows up but the second value is repeated and the first value does now show up.
Name Company
Alston PSL
Alston PSL

I made the changes mentioned in EDIT and EDIT 2 and also added unique IDs to every row of JSON and validated it correctly. That solved the problem.

setActiveItem() passing data sencha touch

I would like to send data with setActiveItem() when doing view change from this store:
Ext.define('SkSe.store.Places',{
extend:'Ext.data.Store',
config:{
autoDestroy: true,
model:'SkSe.model.Places',
//hardcoded data
data: [
{
name: 'Caffe Bar XS', //naziv objekta
icon: 'Icon.png', //tu bi trebala ići ikona kategorije kojoj pripada
stamps: 'stamps1' //broj "stampova" koje je korisnik prikupio
},
{
name: 'Caffe Bar Mali medo',
icon: 'Icon.png',
stamps: 'stamps2'
},
{
name: 'Caffe Bar VIP',
icon: 'Icon.png',
stamps: 'stamps3'
}
]
//dynamic data (Matija)
//remember to change the icon path in "Akcije.js -> itemTpl"
/*proxy:{
type:'ajax',
url:'https://maps.googleapis.com/maps/api/place/search/json?location=-33.8670522,151.1957362&radius=500&types=food&name=harbour&sensor=false&key=AIzaSyCFWZSKDslql5GZR0OJlVcgoQJP1UKgZ5U',
reader:{
type:'json',
//name of array where the results are stored
rootProperty:'results'
}
}*/
}
});
This is my my details controller that should get data from places store:
Ext.define('SkSe.controller.Details', {
extend: 'Ext.app.Controller',
config: {
refs: {
placesContainer:'placesContainer',
Details: 'details'
},
control: {
//get me the list inside the places which is inside placesContainer
'placesContainer places list':{
itemsingletap:'onItemTap'
//itemtap:'onItemTap'
}
}
},
onItemTap:function(list,index,target,record){
console.log('omg');
var addcontact= Ext.create('SkSe.view.Details',
{
xtype:'details',
title:record.data.name,
data:record.data
});
var panelsArray = Ext.ComponentQuery.query('details');
console.log(panelsArray);
Ext.Viewport.add(addcontact);
addcontact.update(record.data.name);
Ext.Viewport.setActiveItem(addcontact);
console.log(record.data.name);
}
});
I would like to send name record from the places.js model above. I heard that you can't pass data with setActiveItem but should create a function that updates view(No I can't use pop and push here).
I'm not very familiar with sencha touch syntax and I'm not sure what functions to use to do that, clearly update function is not that.

I switched up your logic slightly but have provided a working example of what I think you are trying to do.
SenchaFiddle is a little different from what I get running on my machine but you should be able to get the idea.
The initial list loaded gets the data from your store, and on itemtap will push a new view onto the viewport.
You will need to add a navigation button to get back to the list from view.View as well as a better layout for the details. I would suggest nested containers or panels with custom styles to get the details just right. Alternatively you can just drop a full html snippet in there with all the data laid out like you want.
Would be happy to help more.
Fiddle: http://www.senchafiddle.com/#XQNA8

Save nested form data back to server in ExtJS

I have a Model that contains an association to another Model. I am able to display the nested data into a form by using the mapping attribute on the field. Example:
Ext.define('Example.model.Request', {
extend: 'Ext.data.Model',
fields: [
{
name: 'id',
type: Ext.data.Types.NUMBER,
useNull: false
}
{
name: 'plan_surveyor',
mapping: 'plan.surveyor',
type: Ext.data.Types.STRING
}
],
associations: [
{type: 'hasOne', associationKey: 'plan', getterName:'getPlan', model: 'Specs.model.Plan'}
],
proxy: {
type: 'direct',
api: {
read: requestController.load,
update: requestController.update,
},
reader: {
type: 'json',
root: 'records'
},
writer: {
type: 'json',
writeAllFields: true,
nameProperty: 'mapping'
}
}
});
Using this method, I can display the plan.surveyor value in the form by reference plan_surveyor. I call Form.loadRecord(model) to pull the data from the model into the form.
However, now that I'm trying to send the data back to the server, I get the error:
Error performing action. Please report the following: "Unrecognized field "plan.surveyor"
I am attempting to save to the server by first calling Form.updateRecord(model), then model.save(). Is there a way to have the Writer understand that 'plan.surveyor' is not a property name but instead to properly handle nesting?
Am I doing this the right way to start with, or should I just be handling the setting of the form data and loading back into the model in a more manual fashion? It seems that nested data is not all that well supported in general - any recommendations?

Ext.define('Example.model.Request', {
extend: 'Ext.data.Model',
fields: [
{
name: 'id',
type: Ext.data.Types.NUMBER,
useNull: false
}
{
name: 'plan_surveyor',
mapping: 'plan.surveyor',//change to 'plan_surveyor'
type: Ext.data.Types.STRING
}
],
change that show in comment ,because data index is given in above format because ur give ur format thata time that is not dataindex it's a column or extjs preparatory ,so please change that may it's work well
it's not work u will send hole code

Sencha Touch 2 array parsing

I'm new to sencha touch and I'm trying to parse an array of data (this doesn't seem like an uncommon use case but I can't find anything about it online). I followed the sencha ext.data.reader.json doc on nested json, but it doesn't work. Here are my models:
Search Results (to hold multiple search results):
Ext.define('GS.model.SearchResults', {
extend: 'Ext.data.Model',
autoLoad: true,
config: {
fields: [
{name: 'query', type: 'string'},
],
hasMany : {model: 'SearchResult', name: 'results'},
}
});
And search result, to hold an individual search result
Ext.define('GS.model.SearchResult', {
extend: 'Ext.data.Model',
config: {
fields: [
{name: 'id', type: 'int'},
{name: 'name', type: 'string'}
],
belongsTo: 'SearchResults'
}
});
Then in my controller, I have this code:
var store = Ext.create('Ext.data.Store', {
autoLoad: "true",
model: "GS.model.SearchResults",
proxy:
{
type: 'ajax',
url : 'www.someurl.com/?query=somequery',
reader: {
type: 'json'
}
}
});
store.load({
callback: function() {
console.log("Done Loading");
var root = store.first();
console.log("Results for " + root.get('query')); //this prints correctly
console.log(root.results());//THIS IS THE LINE IM INTERESTED IN
console.log(root.raw.results);//this weirdly works
//now I want to print each search results name
root.results().each(function(result) {
console.log("Song: " + result.get('name'));
});
}
});
}
When I log root.results(), I get
Uncaught TypeError: Object [object Object] has no method 'results'
This is exactly how they do it in the docs, so does anyone know why this isnt working???
Edit: Here is the doc I was following

The best way to check your error is to debug in chrome console. After callback you will find your records in root.raw or root.data.
I use to debug in chrome console and write the required code.

After some painful trial and error, I figured it out. In the tutorial, they used unconventional model name, but in my case I needed to use the fully qualified one
So to fix I needed to change
hasMany : {model: 'SearchResult', name: 'results'},
to
hasMany : {model: 'GS.model.SearchResult', name: 'results'},
and same with my deeper model like this:
belongsTo: 'GS.model.SearchResults'
Tough error to catch, but I hope this can help someone else in my position

Map ExtJS Proxy AJAX response to model

UPDATE:
here is my reader/store - not sure what to add to the reader to make this work
Ext.define('YT.store.Videos', {
extend: 'Ext.data.Store',
model: 'YT.model.Video',
autoLoad: true,
proxy: {
type: 'ajax',
url: 'https://gdata.youtube.com/feeds/api/videos',
reader: {
type: 'json',
root: 'feed',
record: 'entry',
successProperty: 'success'
},
listeners: {
exception: function(store, response, app){
console.log('exception...');
console.log(response);
}
}
}
});
Here is my model:
Ext.define('YT.model.Video', {
extend: 'Ext.data.Model',
autoLoad: true,
fields: [
'title',
'published',
'content'
]
});
Here is a sample response:
{
version: '1.0',
encoding: 'UTF-8',
feed: {
junk: 'blahblahblahblah',
entry: [
title: {
$t: 'title'
},
content: {
encoding: 'flash/application',
src: 'http://youtube.com/watch?q=someCatVideo'
},
published: {
$t: '12-28-2012'
}
]
}
}
I'm not sure how to reconcile the two.
I've tried...
Ext.define('YT.model.Video', {
extend: 'Ext.data.Model',
autoLoad: true,
fields: [
{name: 'title', mapping: 'title.$t'},
{name: 'published', mapping: 'published.$t'},
{name: 'content', mapping: 'content.src'}
]
});
Bonus:
Definitely looking for tips on how to debug the implementation of these techniques, I'm rather new to JavaScript MVC.

You are on the right track with mapping, but you also need to define a reader where you specify where your records are in the JSON you get back - see official docs for good examples.
Incidentally, who thought $t was a good idea for a map key?
EDIT:
After your edits here is your working code:
http://jsfiddle.net/dbrin/mSJg3/
As far as debugging: the key for your issue was to clearly see the payload from the service (I used FireBug to inspect JSON object returned). Then mapping your Model class to fit the JSON object through mapping attribute and finally adjust JSON reader to let it know how to navigate your JSON payload (see my code example).
Once your exception listeners are not firing anymore (see code example for those again) that means you got your data into the store. To actually see the data I used Illuminations firebug plugin to inspect the data store. I saw only one record. What the heck? I observed id Property being set to some funky URL. This was happening by default as i did not specify an id attribute on the model. I resorted to spacifying idProperty to undefined to get around this funky behavior (see model code).
I used jsfiddle to quickly iterate through changes and running to see errors in the reader. Once I had no more errors I had jsfiddle show me the app I just build in such a way that I could use Illuminations plugin by using the show/light url: http://jsfiddle.net/dbrin/mSJg3/show/light/