X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/2e847cf21b8ab9d15fa167b315ca5b2fa92638fc..7a654f8d43fdb43d78b63d90528bed6e86b608cc:/docs/output/Ext.data.DataWriter.html diff --git a/docs/output/Ext.data.DataWriter.html b/docs/output/Ext.data.DataWriter.html deleted file mode 100644 index 81274315..00000000 --- a/docs/output/Ext.data.DataWriter.html +++ /dev/null @@ -1,91 +0,0 @@ -

Class Ext.data.DataWriter

Package:Ext.data
Defined In:DataWriter.js
Class:DataWriter
Subclasses:JsonWriter, XmlWriter
Extends:Object

Ext.data.DataWriter facilitates create, update, and destroy actions between -an Ext.data.Store and a server-side framework. A Writer enabled Store will -automatically manage the Ajax requests to perform CRUD actions on a Store.

-

Ext.data.DataWriter is an abstract base class which is intended to be extended -and should not be created directly. For existing implementations, see -Ext.data.JsonWriter.

-

Creating a writer is simple:

-
var writer = new Ext.data.JsonWriter({
-    encode: false   // <--- false causes data to be printed to jsonData config-property of Ext.Ajax#reqeust
-});
-

Same old JsonReader as Ext-2.x:

-
var reader = new Ext.data.JsonReader({idProperty: 'id'}, [{name: 'first'}, {name: 'last'}, {name: 'email'}]);
-

The proxy for a writer enabled store can be configured with a simple url:

-
// Create a standard HttpProxy instance.
-var proxy = new Ext.data.HttpProxy({
-    url: 'app.php/users'    // <--- Supports "provides"-type urls, such as '/users.json', '/products.xml' (Hello Rails/Merb)
-});
-

For finer grained control, the proxy may also be configured with an API:

-
// Maximum flexibility with the API-configuration
-var proxy = new Ext.data.HttpProxy({
-    api: {
-        read    : 'app.php/users/read',
-        create  : 'app.php/users/create',
-        update  : 'app.php/users/update',
-        destroy : {  // <--- Supports object-syntax as well
-            url: 'app.php/users/destroy',
-            method: "DELETE"
-        }
-    }
-});
-

Pulling it all together into a Writer-enabled Store:

-
var store = new Ext.data.Store({
-    proxy: proxy,
-    reader: reader,
-    writer: writer,
-    autoLoad: true,
-    autoSave: true  // -- Cell-level updates.
-});
-

Initiating write-actions automatically, using the existing Ext2.0 Store/Record API:

-
var rec = store.getAt(0);
-rec.set('email', 'foo@bar.com');  // <--- Immediately initiates an UPDATE action through configured proxy.
-
-store.remove(rec);  // <---- Immediately initiates a DESTROY action through configured proxy.
-

For record/batch updates, use the Store-configuration autoSave:false

-
var store = new Ext.data.Store({
-    proxy: proxy,
-    reader: reader,
-    writer: writer,
-    autoLoad: true,
-    autoSave: false  // -- disable cell-updates
-});
-
-var urec = store.getAt(0);
-urec.set('email', 'foo@bar.com');
-
-var drec = store.getAt(1);
-store.remove(drec);
-
-// Push the button!
-store.save();

Config Options

Config OptionsDefined By
 createRecord : Function
Abstract method that should be implemented in all subclasses -(e.g.: JsonWriter.createRecord)
DataWriter
 destroyRecord : Function
Abstract method that should be implemented in all subclasses -(e.g.: JsonWriter.destroyRecord)
DataWriter
 updateRecord : Function
Abstract method that should be implemented in all subclasses -(e.g.: JsonWriter.updateRecord
DataWriter

Public Properties

This class has no public properties.

Public Methods

MethodDefined By

Public Events

This class has no public events.
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