Differences between using json and jsonP - ajax

Question

i had a simple controller to update my truck list in my db. Iniatially it had been working with jsonP(because my server was in another domain), and it worked fine, but then i had joined the php scripts(to manage crud in db) in the same domain and i had changed to ajax proxy. The problem is that i had noticed although ajax proxy sends POST request... i never get anything... (These never occurs with jsonp, because it sent GET request i think). So, is there anything i had forgotten or i must do?
Let me show my store before and after the upgrade:
BEFORE:
Ext.define('myapp.store.ListaCamiones', {
extend: 'Ext.data.Store',
requires: [
'myapp.model.Camion'
],
constructor: function(cfg) {
var me = this;
cfg = cfg || {};
me.callParent([Ext.apply({
autoLoad: true,
autoSync: true,
model: 'myapp.model.Camion',
storeId: 'ListaCamiones',
proxy: {
type: 'jsonp',
api: {
read: 'http://myapp.localhost/camion/listar',
write: 'http://myapp.localhostt/camion/guardar/',
update: 'http://myapp.localhost/camion/guardar/',
destroy: 'http://myapp.localhost/camion/eliminar/'
},
url: 'http://myapp.localhost/camion/listar',
reader: {
type: 'json',
root: 'listacamion'
},
writer: {
type: 'json',
root: 'listacamion'
}
}
}, cfg)]);
}
});
AFTER:
Ext.define('myapp.store.ListaCamiones', {
extend: 'Ext.data.Store',
requires: [
'myapp.model.Camion'
],
constructor: function(cfg) {
var me = this;
cfg = cfg || {};
me.callParent([Ext.apply({
autoLoad: true,
autoSync: true,
model: 'myapp.model.Camion',
storeId: 'ListaCamiones',
proxy: {
type: 'ajax',
url: '/camion/listar',
api: {
read: '/camion/listar',
write: '/camion/guardar/',
update: '/camion/guardar/',
destroy: '/camion/eliminar/'
},
reader: {
type: 'json',
root: 'listacamion'
},
writer: {
type: 'json',
root: 'listacamion'
}
}
}, cfg)]);
}
});
This is what i got from chrome debug:
Connection:Keep-Alive
Content-Length:0
Content-Type:application/x-json
Date:Mon, 01 Jul 2013 15:40:38 GMT
Keep-Alive:timeout=5, max=100
Server:Apache/2.2.22 (Ubuntu)
X-Powered-By:PHP/5.4.9-4ubuntu2
I hope you can help me to understand what is happening . Thank you in advance

Answer 1

try changing your proxy type to 'rest'