[3.0] Ext.data.store DataWriter ¿can I send one request when I add some records?

[juanramoney]

When I add some records to a store and use commitChanges or save, it sends one request to the server for each record, ¿Is there any way to do it in one request?

thanks

[jay@moduscreate.com]

I have not really worked with writer yet, so I don't know if there is a config option.

I know that Direct does this.

[shibubh]

yes you can do this

store has batchSave config option
code snipped from the writer example

var store = new Ext.data.Store({
	id: 'user',
	root: 'records',
	proxy: proxy,
	reader: reader,
	writer: writer,		// <-- plug a DataWriter into the store just as you would a Reader
	paramsAsHash: true,
	batchSave: true// 
});


and the use 

store.save();


to save

[juanramoney]

the API says:

batchSave : Boolean

Defaults to false, which requires manually calling save to send all modifiedRecords to the server. Specify true for the store to automatically save records to the server when a record changes.

The problem is when I add for example 2 records and save, I expect it sends an array with the changes but it sends 2 requests. I attached and image with what shows firebug.

thanks

[tryanDLS]

This functionality was demoed at the conf, so it may be that it was fixed post-RC1. Can you post a testcase?

[juanramoney]

A simple test:

Ext.onReady(function() {
    /*record*/
    var rProf = Ext.data.Record.create(['id', 'Nombre', 'Apellidos', 'Correo']);

    /*store*/
    var lProf = new Ext.data.Store({
        root: 'records',
        proxy: new Ext.data.HttpProxy({
            prettyUrls: false,
            url: 'datos.php?op=mprof'
        }),
        reader: new Ext.data.JsonReader({
            totalProperty: 'total',
            successProperty: 'success',
            idProperty: 'id',
            root: 'data'
        },
        rProf),
        writer: new Ext.data.JsonWriter({
            returnJson: true,
            writeAllFields: false
        }),
        paramsAsHash: true,
        batchSave: false
    });
    /*new records*/
    var nr = new rProf({
        Nombre: 'test1',
        Apellidos: 'Atest1'
    });

    var nr2 = new rProf({
        Nombre: 'test2',
        Apellidos: 'Atest2'
    });

    /*add records*/
    lProf.add(nr);
    lProf.add(nr2);
    /*save changes*/
    lProf.save();
});

And what shows firebug.

thanks

[mjlecomte]

I'm just poking my nose in here. But it says batchSave. The api actions are different aren't they? So you're looking for something like batchCreate it seems.

[mjlecomte]

Edit: I wasn't at the conference so I don't really know what I'm talking about...

[mjlecomte]

Looking at the source it appears the create action is set up to fire the requests individually, not as an array.

[shibubh]

A simple test:

        paramsAsHash: true,
        batchSave: false

And what shows firebug.

thanks

change batchSave:true and check the fireBug response