/**
 * @class Ext.form.action.DirectSubmit
 * @extends Ext.form.action.Submit
 * 
Provides Ext.direct support for submitting form data.
 * 
This example illustrates usage of Ext.Direct to submit a form through Ext.Direct.
 * 

var myFormPanel = new Ext.form.FormPanel({
    // configs for FormPanel
    title: 'Basic Information',
    renderTo: document.body,
    width: 300, height: 160,
    padding: 10,
    buttons:[{
        text: 'Submit',
        handler: function(){
            myFormPanel.getForm().submit({
                params: {
                    foo: 'bar',
                    uid: 34
                }
            });
        }
    }],

    // configs apply to child items
    defaults: {anchor: '100%'},
    defaultType: 'textfield',
    items: [{
        fieldLabel: 'Name',
        name: 'name'
    },{
        fieldLabel: 'Email',
        name: 'email'
    },{
        fieldLabel: 'Company',
        name: 'company'
    }],

    // configs for BasicForm
    api: {
        // The server-side method to call for load() requests
        load: Profile.getBasicInfo,
        // The server-side must mark the submit handler as a 'formHandler'
        submit: Profile.updateBasicInfo
    },
    // specify the order for the passed params
    paramOrder: ['uid', 'foo']
});
 * 
 * The data packet sent to the server will resemble something like:
 * 

{
    "action":"Profile","method":"updateBasicInfo","type":"rpc","tid":"6",
    "result":{
        "success":true,
        "id":{
            "extAction":"Profile","extMethod":"updateBasicInfo",
            "extType":"rpc","extTID":"6","extUpload":"false",
            "name":"Aaron Conran","email":"[email protected]","company":"Ext JS, LLC"
        }
    }
}
 * 
 * The form will process a data packet returned by the server that is similar
 * to the following:
 * 

// sample success packet (batched requests)
[
    {
        "action":"Profile","method":"updateBasicInfo","type":"rpc","tid":3,
        "result":{
            "success":true
        }
    }
]

// sample failure packet (one request)
{
        "action":"Profile","method":"updateBasicInfo","type":"rpc","tid":"6",
        "result":{
            "errors":{
                "email":"already taken"
            },
            "success":false,
            "foo":"bar"
        }
}
 * 
 * Also see the discussion in {@link Ext.form.DirectLoadAction}.
 */
Ext.define('Ext.form.action.DirectSubmit', {
    extend:'Ext.form.action.Submit',
    requires: ['Ext.direct.Direct'],
    alternateClassName: 'Ext.form.Action.DirectSubmit',
    alias: 'formaction.directsubmit',

    type: 'directsubmit',

    doSubmit: function() {
        var callback = Ext.Function.bind(this.onSuccess, this),
            formEl = this.buildForm();
        this.form.api.submit(formEl, callback, this);
        Ext.removeNode(formEl);
    },

    // Direct actions have already been processed and therefore
    // we can directly set the result; Direct Actions do not have
    // a this.response property.
    processResponse: function(result) {
        return (this.result = result);
    },

    onSuccess: function(response, trans) {
        if (trans.type === Ext.Direct.exceptions.SERVER) {
            response = {};
        }
        Ext.form.action.DirectSubmit.superclass.onSuccess.call(this, response);
    }
});