X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/c930e9176a5a85509c5b0230e2bff5c22a591432..f5240829880f87e0cf581c6a296e436fdef0ef80:/docs/output/Ext.data.DataWriter.html diff --git a/docs/output/Ext.data.DataWriter.html b/docs/output/Ext.data.DataWriter.html index c053c4d9..970a4ce4 100644 --- a/docs/output/Ext.data.DataWriter.html +++ b/docs/output/Ext.data.DataWriter.html @@ -1,47 +1,91 @@ -
Properties Methods Events Config Options Direct Link

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 +

Properties Methods Events Config Options Direct Link

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();
+
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'
+    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:

-
// Use the api specification
+
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 : 'app.php/users/destroy'
+        destroy : {  // <--- Supports object-syntax as well
+            url: 'app.php/users/destroy',
+            method: "DELETE"
+        }
     }
 });

-
Creating a Writer enabled store:

+
Pulling it all together into a Writer-enabled Store:

 
var store = new Ext.data.Store({
     proxy: proxy,
     reader: reader,
-    writer: writer
-});

Config Options

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

Public Properties

PropertyDefined By
 meta : Mixed
This DataWriter's configured metadata as passed to the constructor.
DataWriter

Public Methods

MethodDefined By

Public Properties

This class has no public properties.

Public Methods

MethodDefined By

Public Events

This class has no public events.
\ No newline at end of file + Object
Converts a Record to a hash, taking into account the state of the Ext.data.Record along with configuration properties...
Converts a Record to a hash, taking into account the state of the Ext.data.Record along with configuration properties +related to its rendering, such as writeAllFields, phantom, getChanges and +idProperty
Parameters:
  • rec : Ext.data.Record
    The Record from which to create a hash.
  • config : Object
    NOT YET IMPLEMENTED. Will implement an exlude/only configuration for fine-control over which fields do/don't get rendered.
Returns:
  • Object
DataWriter

Public Events

This class has no public events.
\ No newline at end of file