Hi,

The dojo.data.ItemFileWriteStore has a built-in mechanism to help developpers track pending items for updating purpose.
An internal object called _pending is initialized when the object is created:

Then, when the store is updated (either by a new, update or delete operation) this object is modified accordingly.
For the update, there is a test in the _setValueOrValues function to avoid registering twice the updated item:

Following examples don't work with option debugAtAllCosts = true

dojox/grid/tests/test_grid_layout.html
dojox/grid/tests/test_grid_layout_LayoutContainer.html

I get an error in Firebug

dojo.data.ItemFileWriteStore is not a constructor
test_store = new dojo.data.ItemFileWriteStore({data: data});

I can just simply switch this option to false but would like to know a reason. Did anyone of you come across this?

I have an editable datagrid(1.2.3) up and runnning fine. To make it sort date columns correctly, I formatted my json data to have date objects in the format:

Here is my grid declaration:

Hi. I'm having a strange problem - and am wondering if it's b/c of some handling of memory that I haven't grocked. Here's the scenario:

* I instantiate an object from a class that has an ItemFileWriteStore as one of its properties.

* A class method loads data into the ItemFileWriteStore

* I instantiate a second object from the same class. Now when I load data into its ItemFileWriteStore, I get an error on myStore.newItem().

I'd like to send all pending changes to my backend using the save() method of the ItemFileWriteStore. The suggestion in the Dojo Book is to use my own method; either _saveEverything or _saveCustom. I'd don't want to send everything, so _saveCustom made sense for my needs.

In order to build a serializable structure containing all of the modified data items, I am iterating over the store._pending object and its three containers. I want to copy the data into some simple objects and arrays, and then send them to my server as JSON.

Hi,

I'm using an ItemFileWriteStore as the backend to a Grid (1.2 style). One of my columns has a dojox.grid.cells.Bool. I'm trying to let the server know via rpc when the box is checked/unchecked.

I subclassed ItemFileWriteStore to add a "_saveCustom" as described in the documentation.

Here is my code:


dojo.declare("CustomItemFileWriteStore", dojo.data.ItemFileWriteStore, {
_saveCustom: function(saveCompleteCallback, saveFailedCallback){
// xhrPost/xhrPut your data back to your server (convert it to
the server format first if need be)