For up to date documentation and features, visit http://docs.sencha.com/ext-js/4-0

## Sencha Documentation

# Ext.data.proxy.JsonP

####

####

    HierarchyExt.data.proxy.ProxyExt.data.proxy.ServerExt.data.proxy.JsonPMixinsExt.util.Observable

JsonPProxy is useful when you need to load data from a domain other than the one your application is running on. If your application is running on http://domainA.com it cannot use Ajax to load its data from http://domainB.com because cross-domain ajax requests are prohibited by the browser.

We can get around this using a JsonPProxy. JsonPProxy injects a <script> tag into the DOM whenever an AJAX request would usually be made. Let's say we want to load data from http://domainB.com/users - the script tag that would be injected might look like this:

    <script src="http://domainB.com/users?callback=someCallback"></script>

When we inject the tag above, the browser makes a request to that url and includes the response as if it was any other type of JavaScript include. By passing a callback in the url above, we're telling domainB's server that we want to be notified when the result comes in and that it should call our callback function with the data it sends back. So long as the server formats the response to look like this, everything will work:

    someCallback({
        users: [
            {
                id: 1,
                name: "Ed Spencer",
                email: "ed@sencha.com"
            }
        ]
    });

As soon as the script finishes loading, the 'someCallback' function that we passed in the url is called with the JSON object that the server returned.

JsonPProxy takes care of all of this automatically. It formats the url you pass, adding the callback parameter automatically. It even creates a temporary callback function, waits for it to be called and then puts the data into the Proxy making it look just like you loaded it through a normal AjaxProxy. Here's how we might set that up:

    Ext.define('User', {
        extend: 'Ext.data.Model',
        fields: ['id', 'name', 'email']
    });

    var store = new Ext.data.Store({
        model: 'User',
        proxy: {
            type: 'jsonp',
            url : 'http://domainB.com/users'
        }
    });

    store.load();

That's all we need to do - JsonPProxy takes care of the rest. In this case the Proxy will have injected a script tag like this:

    <script src="http://domainB.com/users?callback=stcCallback001" id="stcScript001"></script>

Customization

Most parts of this script tag can be customized using the callbackParam, callbackPrefix and scriptIdPrefix configurations. For example:

    var store = new Ext.data.Store({
        model: 'User',
        proxy: {
            type: 'jsonp',
            url : 'http://domainB.com/users',
            callbackParam: 'theCallbackFunction',
            callbackPrefix: 'ABC',
            scriptIdPrefix: 'injectedScript'
        }
    });

    store.load();

Would inject a script tag like this:

    <script src="http://domainB.com/users?theCallbackFunction=ABC001" id="injectedScript001"></script>

Implementing on the server side

The remote server side needs to be configured to return data in this format. Here are suggestions for how you might achieve this using Java, PHP and ASP.net:

Java:

    boolean jsonP = false;
    String cb = request.getParameter("callback");
    if (cb != null) {
        jsonP = true;
        response.setContentType("text/javascript");
    } else {
        response.setContentType("application/x-json");
    }
    Writer out = response.getWriter();
    if (jsonP) {
        out.write(cb + "(");
    }
    out.print(dataBlock.toJsonString());
    if (jsonP) {
        out.write(");");
    }

PHP:

    $callback = $_REQUEST['callback'];

    // Create the output object.
    $output = array('a' => 'Apple', 'b' => 'Banana');

    //start output
    if ($callback) {
        header('Content-Type: text/javascript');
        echo $callback . '(' . json_encode($output) . ');';
    } else {
        header('Content-Type: application/x-json');
        echo json_encode($output);
    }

ASP.net:

    String jsonString = "{success: true}";
    String cb = Request.Params.Get("callback");
    String responseString = "";
    if (!String.IsNullOrEmpty(cb)) {
        responseString = cb + "(" + jsonString + ")";
    } else {
        responseString = jsonString;
    }
    Response.Write(responseString);

Defined By

### Config Options

#### Other Configs

Ext.data.proxy.Server
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api : Object
Specific urls to call on CRUD action methods "read", "create", "update" and "destroy". Defaults to: api: { read ...

Specific urls to call on CRUD action methods "read", "create", "update" and "destroy". Defaults to:

    api: {
        read    : undefined,
        create  : undefined,
        update  : undefined,
        destroy : undefined
    }

The url is built based upon the action being executed `[load|create|save|destroy]` using the commensurate `api` property, or if undefined default to the configured Ext.data.Store.url.

For example:

    api: {
        load :    '/controller/load',
        create :  '/controller/new',
        save :    '/controller/update',
        destroy : '/controller/destroy_action'
    }

If the specific URL for a given CRUD action is undefined, the CRUD action request will be directed to the configured `url`.

Ext.data.proxy.JsonP
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autoAppendParams : Boolean

True to automatically append the request's params to the generated url. Defaults to true

True to automatically append the request's params to the generated url. Defaults to true

Ext.data.proxy.Proxy
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batchActions : Boolean

True to batch actions of a particular type when synchronizing the store. Defaults to `true`.

True to batch actions of a particular type when synchronizing the store. Defaults to `true`.

Ext.data.proxy.Proxy
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batchOrder : String
Comma-separated ordering 'create', 'update' and 'destroy' actions when batching. Override this to set a different ord...

Comma-separated ordering 'create', 'update' and 'destroy' actions when batching. Override this to set a different order for the batched CRUD actions to be executed in. Defaults to 'create,update,destroy'

Ext.data.proxy.Server
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cacheString : String

The name of the cache param added to the url when using noCache (defaults to "_dc")

The name of the cache param added to the url when using noCache (defaults to "_dc")

Ext.data.proxy.JsonP
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callbackKey : String

(Optional) See Ext.data.JsonP.callbackKey.

(Optional) See Ext.data.JsonP.callbackKey.

Ext.data.proxy.Server
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directionParam : String
The name of the direction parameter to send in a request. This is only used when simpleSortMode is set to true. Defau...

The name of the direction parameter to send in a request. This is only used when simpleSortMode is set to true. Defaults to 'dir'.

Ext.data.proxy.Server
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extraParams : Object
Extra parameters that will be included on every request. Individual requests with params of the same name will overri...

Extra parameters that will be included on every request. Individual requests with params of the same name will override these params when they are in conflict.

Ext.data.proxy.Server
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filterParam : String
The name of the 'filter' parameter to send in a request. Defaults to 'filter'. Set this to undefined if you don't wan...

The name of the 'filter' parameter to send in a request. Defaults to 'filter'. Set this to undefined if you don't want to send a filter parameter

Ext.data.proxy.Server
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groupParam : String
The name of the 'group' parameter to send in a request. Defaults to 'group'. Set this to undefined if you don't want ...

The name of the 'group' parameter to send in a request. Defaults to 'group'. Set this to undefined if you don't want to send a group parameter

Ext.data.proxy.Server
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limitParam : String
The name of the 'limit' parameter to send in a request. Defaults to 'limit'. Set this to undefined if you don't want ...

The name of the 'limit' parameter to send in a request. Defaults to 'limit'. Set this to undefined if you don't want to send a limit parameter

Ext.util.Observable
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listeners : Object
(optional) A config object containing one or more event handlers to be added to this object during initialization. T...

(optional)

A config object containing one or more event handlers to be added to this object during initialization. This should be a valid listeners config object as specified in the addListener example for attaching multiple handlers at once.

DOM events from ExtJs Components

While some ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this

is usually only done when extra value can be added. For example the DataView's `click` event passing the node clicked on. To access DOM events directly from a child element of a Component, we need to specify the `element` option to identify the Component property to add a DOM listener to:

    new Ext.panel.Panel({
        width: 400,
        height: 200,
        dockedItems: [{
            xtype: 'toolbar'
        }],
        listeners: {
            click: {
                element: 'el', //bind to the underlying el property on the panel
                fn: function(){ console.log('click el'); }
            },
            dblclick: {
                element: 'body', //bind to the underlying body property on the panel
                fn: function(){ console.log('dblclick body'); }
            }
        }
    });

Ext.data.proxy.Proxy
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model : String/Ext.data.Model
The name of the Model to tie to this Proxy. Can be either the string name of the Model, or a reference to the Model c...

The name of the Model to tie to this Proxy. Can be either the string name of the Model, or a reference to the Model constructor. Required.

Ext.data.proxy.Server
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noCache : Boolean

(optional) Defaults to true. Disable caching by adding a unique parameter name to the request.

(optional) Defaults to true. Disable caching by adding a unique parameter name to the request.

Ext.data.proxy.Server
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pageParam : String
The name of the 'page' parameter to send in a request. Defaults to 'page'. Set this to undefined if you don't want to...

The name of the 'page' parameter to send in a request. Defaults to 'page'. Set this to undefined if you don't want to send a page parameter

Ext.data.proxy.Server
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reader : Object/String/Ext.data.reader.Reader
The Ext.data.reader.Reader to use to decode the server's response. This can either be a Reader instance, a config obj...

The Ext.data.reader.Reader to use to decode the server's response. This can either be a Reader instance, a config object or just a valid Reader type name (e.g. 'json', 'xml').

Ext.data.proxy.JsonP
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recordParam : String
The param name to use when passing records to the server (e.g. 'records=someEncodedRecordString'). Defaults to 'recor...

The param name to use when passing records to the server (e.g. 'records=someEncodedRecordString'). Defaults to 'records'

Ext.data.proxy.Server
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simpleSortMode : Boolean
Enabling simpleSortMode in conjunction with remoteSort will only send one sort property and a direction when a remote...

Enabling simpleSortMode in conjunction with remoteSort will only send one sort property and a direction when a remote sort is requested. The directionParam and sortParam will be sent with the property name and either 'ASC' or 'DESC'

Ext.data.proxy.Server
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sortParam : String
The name of the 'sort' parameter to send in a request. Defaults to 'sort'. Set this to undefined if you don't want to...

The name of the 'sort' parameter to send in a request. Defaults to 'sort'. Set this to undefined if you don't want to send a sort parameter

Ext.data.proxy.Server
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startParam : String
The name of the 'start' parameter to send in a request. Defaults to 'start'. Set this to undefined if you don't want ...

The name of the 'start' parameter to send in a request. Defaults to 'start'. Set this to undefined if you don't want to send a start parameter

Ext.data.proxy.Server
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timeout : Number

(optional) The number of milliseconds to wait for a response. Defaults to 30 seconds.

(optional) The number of milliseconds to wait for a response. Defaults to 30 seconds.

Ext.data.proxy.Server
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url : String

The URL from which to request the data object.

The URL from which to request the data object.

Ext.data.proxy.Server
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writer : Object/String/Ext.data.writer.Writer
The Ext.data.writer.Writer to use to encode any request sent to the server. This can either be a Writer instance, a c...

The Ext.data.writer.Writer to use to encode any request sent to the server. This can either be a Writer instance, a config object or just a valid Writer type name (e.g. 'json', 'xml').

Defined By

### Properties

Ext.data.proxy.Server
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afterRequest : Object

Optional callback function which can be used to clean up after a request has been completed.

Optional callback function which can be used to clean up after a request has been completed.

Ext.data.proxy.Proxy
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create : Object

Performs the given create operation.

Performs the given create operation.

Ext.data.proxy.Proxy
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destroy : Object

Performs the given destroy operation.

Performs the given destroy operation.

Ext.data.proxy.Proxy
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read : Object

Performs the given read operation.

Performs the given read operation.

Ext.data.proxy.Proxy
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update : Object

Performs the given update operation.

Performs the given update operation.

Defined By

### Methods

Ext.data.proxy.Proxy
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JsonP( Object config) : void

Creates the Proxy

Creates the Proxy

### Parameters

- config : Object

  Optional config object

### Returns

- void

Ext.data.proxy.JsonP
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abort : void

Aborts the current server request if one is currently running

Aborts the current server request if one is currently running

### Returns

- void

Ext.util.Observable
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addEvents( Object/String o, String ) : void

Adds the specified events to the list of events which this Observable may fire.

Adds the specified events to the list of events which this Observable may fire.

### Parameters

- o : Object/String

  Either an object with event names as properties with a value of `true` or the first event name string if multiple event names are being passed as separate parameters.

- : String

  [additional] Optional additional event names if multiple event names are being passed as separate parameters. Usage:

      this.addEvents('storeloaded', 'storecleared');

### Returns

- void

Ext.util.Observable
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addListener( String eventName, Function handler, [Object scope], [Object options]) : void

Appends an event handler to this object.

Appends an event handler to this object.

### Parameters

- eventName : String

  The name of the event to listen for. May also be an object who's property names are event names. See

- handler : Function

  The method the event invokes.

- scope : Object

  (optional) The scope (`this` reference) in which the handler function is executed. If omitted, defaults to the object which fired the event.

- options : Object

  (optional) An object containing handler configuration. properties. This may contain any of the following properties:

  - scope : Object
    The scope (`this` reference) in which the handler function is executed. If omitted, defaults to the object which fired the event.
  - delay : Number
    The number of milliseconds to delay the invocation of the handler after the event fires.
  - single : Boolean
    True to add a handler to handle just the next firing of the event, and then remove itself.
  - buffer : Number
    Causes the handler to be scheduled to run in an Ext.util.DelayedTask delayed by the specified number of milliseconds. If the event fires again within that time, the original handler is not invoked, but the new handler is scheduled in its place.
  - target : Observable
    Only call the handler if the event was fired on the target Observable, not if the event was bubbled up from a child Observable.
  - element : String
    This option is only valid for listeners bound to Components. The name of a Component property which references an element to add a listener to.

    This option is useful during Component construction to add DOM event listeners to elements of Components which will exist only after the Component is rendered. For example, to add a click listener to a Panel's body:

        new Ext.panel.Panel({
            title: 'The title',
            listeners: {
                click: this.handlePanelClick,
                element: 'body'
            }
        });

    When added in this way, the options available are the options applicable to Ext.core.Element.addListener

  Combining Options
  Using the options argument, it is possible to combine different types of listeners:
  A delayed, one-time listener.

      myPanel.on('hide', this.handleClick, this, {
      single: true,
      delay: 100
      });

  Attaching multiple handlers in 1 call
  The method also allows for a single argument to be passed which is a config object containing properties which specify multiple events. For example:

      myGridPanel.on({
          cellClick: this.onCellClick,
          mouseover: this.onMouseOver,
          mouseout: this.onMouseOut,
          scope: this // Important. Ensure "this" is correct during handler execution
      });

  .

### Returns

- void

Ext.util.Observable
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addManagedListener( Observable/Element item, Object/String ename, Function fn, Object scope, Object opt) : void

Adds listeners to any Observable object (or Element) which are automatically removed when this Component is destroyed.

Adds listeners to any Observable object (or Element) which are automatically removed when this Component is destroyed.

### Parameters

- item : Observable/Element

  The item to which to add a listener/listeners.

- ename : Object/String

  The event name, or an object containing event name properties.

- fn : Function

  Optional. If the `ename` parameter was an event name, this is the handler function.

- scope : Object

  Optional. If the `ename` parameter was an event name, this is the scope (`this` reference) in which the handler function is executed.

- opt : Object

  Optional. If the `ename` parameter was an event name, this is the addListener options.

### Returns

- void

Ext.data.proxy.Proxy
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batch( Object operations, Object listeners) : Ext.data.Batch
Performs a batch of Operations, in the order specified by batchOrder. Used internally by Ext.data.Store's sync method...

Performs a batch of Operations, in the order specified by batchOrder. Used internally by Ext.data.Store's sync method. Example usage:

    myProxy.batch({
        create : [myModel1, myModel2],
        update : [myModel3],
        destroy: [myModel4, myModel5]
    });

Where the myModel* above are Model instances - in this case 1 and 2 are new instances and have not been saved before, 3 has been saved previously but needs to be updated, and 4 and 5 have already been saved but should now be destroyed.

### Parameters

- operations : Object

  Object containing the Model instances to act upon, keyed by action name

- listeners : Object

  Optional listeners object passed straight through to the Batch - see Ext.data.Batch

### Returns

- Ext.data.Batch

  The newly created Ext.data.Batch object

Ext.data.proxy.Server
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buildRequest( Ext.data.Operation operation) : Ext.data.Request

Creates and returns an Ext.data.Request object based on the options passed by the Store that this Proxy is attached to.

Creates and returns an Ext.data.Request object based on the options passed by the Store that this Proxy is attached to.

### Parameters

- operation : Ext.data.Operation

  The Operation object to execute

### Returns

- Ext.data.Request

  The request object

Ext.data.proxy.JsonP
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buildUrl( Ext.data.Request request) : String

Generates a url based on a given Ext.data.Request object. Adds the params and callback function name to the url

Generates a url based on a given Ext.data.Request object. Adds the params and callback function name to the url

### Parameters

- request : Ext.data.Request

  The request object

### Returns

- String

  The url

Ext.util.Observable
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capture( Observable o, Function fn, [Object scope]) : void
Starts capture on the specified Observable. All events will be passed to the supplied function with the event name + ...

Starts capture on the specified Observable. All events will be passed to the supplied function with the event name + standard signature of the event before the event is fired. If the supplied function returns false, the event will not fire.

### Parameters

- o : Observable

  The Observable to capture events from.

- fn : Function

  The function to call when an event is fired.

- scope : Object

  (optional) The scope (`this` reference) in which the function is executed. Defaults to the Observable firing the event.

### Returns

- void

Ext.util.Observable
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clearListeners : void

Removes all listeners for this object including the managed listeners

Removes all listeners for this object including the managed listeners

### Returns

- void

Ext.util.Observable
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clearManagedListeners : void

Removes all managed listeners for this object.

Removes all managed listeners for this object.

### Returns

- void

Ext.data.proxy.Server
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doRequest( Ext.data.Operation operation, Function callback, Object scope) : void
In ServerProxy subclasses, the create, read, update and destroy methods all pass through to doRequest. Each ServerPro...

In ServerProxy subclasses, the create, read, update and destroy methods all pass through to doRequest. Each ServerProxy subclass must implement the doRequest method - see Ext.data.proxy.JsonP and Ext.data.proxy.Ajax for examples. This method carries the same signature as each of the methods that delegate to it.

### Parameters

- operation : Ext.data.Operation

  The Ext.data.Operation object

- callback : Function

  The callback function to call when the Operation has completed

- scope : Object

  The scope in which to execute the callback

### Returns

- void

Ext.util.Observable
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enableBubble( String/Array events) : void
Enables events fired by this Observable to bubble up an owner hierarchy by calling this.getBubbleTarget() if present....

Enables events fired by this Observable to bubble up an owner hierarchy by calling `this.getBubbleTarget()` if present. There is no implementation in the Observable base class.

This is commonly used by Ext.Components to bubble events to owner Containers. See Ext.Component.getBubbleTarget. The default implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to access the required target more quickly.

Example:

    Ext.override(Ext.form.field.Base, {
    //  Add functionality to Field's initComponent to enable the change event to bubble
    initComponent : Ext.Function.createSequence(Ext.form.field.Base.prototype.initComponent, function() {
        this.enableBubble('change');
    }),

    //  We know that we want Field's events to bubble directly to the FormPanel.
    getBubbleTarget : function() {
        if (!this.formPanel) {
            this.formPanel = this.findParentByType('form');
        }
        return this.formPanel;
    }
    });

    var myForm = new Ext.formPanel({
    title: 'User Details',
    items: [{
        ...
    }],
    listeners: {
        change: function() {
            // Title goes red if form has been modified.
            myForm.header.setStyle('color', 'red');
        }
    }
    });

### Parameters

- events : String/Array

  The event name to bubble, or an Array of event names.

### Returns

- void

Ext.data.proxy.Server
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encodeFilters( Array sorters) : String
Encodes the array of Ext.util.Filter objects into a string to be sent in the request url. By default, this simply JSO...

Encodes the array of Ext.util.Filter objects into a string to be sent in the request url. By default, this simply JSON-encodes the filter data

### Parameters

- sorters : Array

  The array of Filter objects

### Returns

- String

  The encoded filters

Ext.data.proxy.JsonP
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encodeRecords( Array records) : String
Encodes an array of records into a string suitable to be appended to the script src url. This is broken out into its ...

Encodes an array of records into a string suitable to be appended to the script src url. This is broken out into its own function so that it can be easily overridden.

### Parameters

- records : Array

  The records array

### Returns

- String

  The encoded records string

Ext.data.proxy.Server
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encodeSorters( Array sorters) : String
Encodes the array of Ext.util.Sorter objects into a string to be sent in the request url. By default, this simply JSO...

Encodes the array of Ext.util.Sorter objects into a string to be sent in the request url. By default, this simply JSON-encodes the sorter data

### Parameters

- sorters : Array

  The array of Sorter objects

### Returns

- String

  The encoded sorters

Ext.util.Observable
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fireEvent( String eventName, Object... args) : Boolean
Fires the specified event with the passed parameters (minus the event name). An event may be set to bubble up an Ob...

Fires the specified event with the passed parameters (minus the event name).

An event may be set to bubble up an Observable parent hierarchy (See Ext.Component.getBubbleTarget) by calling enableBubble.

### Parameters

- eventName : String

  The name of the event to fire.

- args : Object...

  Variable number of parameters are passed to handlers.

### Returns

- Boolean

  returns false if any of the handlers return false otherwise it returns true.

Ext.data.proxy.Proxy
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getModel : Ext.data.Model

Returns the model attached to this Proxy

Returns the model attached to this Proxy

### Returns

- Ext.data.Model

  The model

Ext.data.proxy.Proxy
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getReader : Ext.data.reader.Reader

Returns the reader currently attached to this proxy instance

Returns the reader currently attached to this proxy instance

### Returns

- Ext.data.reader.Reader

  The Reader instance

Ext.data.proxy.Proxy
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getWriter : Ext.data.writer.Writer

Returns the writer currently attached to this proxy instance

Returns the writer currently attached to this proxy instance

### Returns

- Ext.data.writer.Writer

  The Writer instance

Ext.util.Observable
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hasListener( String eventName) : Boolean

Checks to see if this object has any listeners for a specified event

Checks to see if this object has any listeners for a specified event

### Parameters

- eventName : String

  The name of the event to check for

### Returns

- Boolean

  True if the event is being listened for, else false

Ext.util.Observable
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observe( Function c, Object listeners) : void
Sets observability on the passed class constructor. This makes any event fired on any instance of the passed class a...

Sets observability on the passed class constructor.

This makes any event fired on any instance of the passed class also fire a single event through the class allowing for central handling of events on many instances at once.

Usage:

    Ext.util.Observable.observe(Ext.data.Connection);
    Ext.data.Connection.on('beforerequest', function(con, options) {
        console.log('Ajax request made to ' + options.url);
    });

### Parameters

- c : Function

  The class constructor to make observable.

- listeners : Object

  An object containing a series of listeners to add. See addListener.

### Returns

- void

Ext.util.Observable
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on( String eventName, Function handler, [Object scope], [Object options]) : void

Appends an event handler to this object (shorthand for addListener.)

Appends an event handler to this object (shorthand for addListener.)

### Parameters

- eventName : String

  The type of event to listen for

- handler : Function

  The method the event invokes

- scope : Object

  (optional) The scope (`this` reference) in which the handler function is executed. If omitted, defaults to the object which fired the event.

- options : Object

  (optional) An object containing handler configuration.

### Returns

- void

Ext.data.proxy.Server
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processResponse( Object success, Object operation, Object request, Object response, Object callback, Object scope) : void

### Parameters

- success : Object
- operation : Object
- request : Object
- response : Object
- callback : Object
- scope : Object

### Returns

- void

Ext.util.Observable
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relayEvents( Object origin, Array events, Object prefix) : void

Relays selected events from the specified Observable as if the events were fired by `this`.

Relays selected events from the specified Observable as if the events were fired by `this`.

### Parameters

- origin : Object

  The Observable whose events this object is to relay.

- events : Array

  Array of event names to relay.

- prefix : Object

### Returns

- void

Ext.util.Observable
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releaseCapture( Observable o) : void

Removes all added captures from the Observable.

Removes all added captures from the Observable.

### Parameters

- o : Observable

  The Observable to release

### Returns

- void

Ext.util.Observable
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removeListener( String eventName, Function handler, [Object scope]) : void

Removes an event handler.

Removes an event handler.

### Parameters

- eventName : String

  The type of event the handler was associated with.

- handler : Function

  The handler to remove. This must be a reference to the function passed into the addListener call.

- scope : Object

  (optional) The scope originally specified for the handler.

### Returns

- void

Ext.util.Observable
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removeManagedListener( Observable|Element item, Object|String ename, Function fn, Object scope) : void

Removes listeners that were added by the mon method.

Removes listeners that were added by the mon method.

### Parameters

- item : Observable|Element

  The item from which to remove a listener/listeners.

- ename : Object|String

  The event name, or an object containing event name properties.

- fn : Function

  Optional. If the `ename` parameter was an event name, this is the handler function.

- scope : Object

  Optional. If the `ename` parameter was an event name, this is the scope (`this` reference) in which the handler function is executed.

### Returns

- void

Ext.util.Observable
view source
resumeEvents : void
Resume firing events. (see suspendEvents) If events were suspended using the queueSuspended parameter, then all event...

Resume firing events. (see suspendEvents) If events were suspended using the `queueSuspended` parameter, then all events fired during event suspension will be sent to any listeners now.

### Returns

- void

Ext.data.proxy.Proxy
view source
setModel( String|Ext.data.Model model, Boolean setOnStore) : void

Sets the model associated with this proxy. This will only usually be called by a Store

Sets the model associated with this proxy. This will only usually be called by a Store

### Parameters

- model : String|Ext.data.Model

  The new model. Can be either the model name string, or a reference to the model's constructor

- setOnStore : Boolean

  Sets the new model on the associated Store, if one is present

### Returns

- void

Ext.data.proxy.Proxy
view source
setReader( String|Object|Ext.data.reader.Reader reader) : Ext.data.reader.Reader

Sets the Proxy's Reader by string, config object or Reader instance

Sets the Proxy's Reader by string, config object or Reader instance

### Parameters

- reader : String|Object|Ext.data.reader.Reader

  The new Reader, which can be either a type string, a configuration object or an Ext.data.reader.Reader instance

### Returns

- Ext.data.reader.Reader

  The attached Reader object

Ext.data.proxy.Proxy
view source
setWriter( String|Object|Ext.data.writer.Writer writer) : Ext.data.writer.Writer

Sets the Proxy's Writer by string, config object or Writer instance

Sets the Proxy's Writer by string, config object or Writer instance

### Parameters

- writer : String|Object|Ext.data.writer.Writer

  The new Writer, which can be either a type string, a configuration object or an Ext.data.writer.Writer instance

### Returns

- Ext.data.writer.Writer

  The attached Writer object

Ext.util.Observable
view source
suspendEvents( Boolean queueSuspended) : void

Suspend the firing of all events. (see resumeEvents)

Suspend the firing of all events. (see resumeEvents)

### Parameters

- queueSuspended : Boolean

  Pass as true to queue up suspended events to be fired after the resumeEvents call instead of discarding all suspended events;

### Returns

- void

Ext.util.Observable
view source
un( String eventName, Function handler, [Object scope]) : void

Removes an event handler (shorthand for removeListener.)

Removes an event handler (shorthand for removeListener.)

### Parameters

- eventName : String

  The type of event the handler was associated with.

- handler : Function

  The handler to remove. This must be a reference to the function passed into the addListener call.

- scope : Object

  (optional) The scope originally specified for the handler.

### Returns

- void

Defined By

### Events

Ext.data.proxy.JsonP
view source
exception( Ext.data.proxy.Proxy this, Ext.data.Request request, Ext.data.Operation operation)

Fires when the server returns an exception

Fires when the server returns an exception

### Parameters

- this : Ext.data.proxy.Proxy
- request : Ext.data.Request

  The request that was sent

- operation : Ext.data.Operation

  The operation that triggered the request