X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/25ef3491bd9ae007ff1fc2b0d7943e6eaaccf775..7a654f8d43fdb43d78b63d90528bed6e86b608cc:/src/data/DataWriter.js

diff --git a/src/data/DataWriter.js b/src/data/DataWriter.js
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-/*!
- * Ext JS Library 3.0.3
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
-/**
- * @class Ext.data.DataWriter
- * <p>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.</p>
- * <p>Ext.data.DataWriter is an abstract base class which is intended to be extended
- * and should not be created directly. For existing implementations, see
- * {@link Ext.data.JsonWriter}.</p>
- * <p>Creating a writer is simple:</p>
- * <pre><code>
-var writer = new Ext.data.JsonWriter();
- * </code></pre>
- * <p>The proxy for a writer enabled store can be configured with a simple <code>url</code>:</p>
- * <pre><code>
-// Create a standard HttpProxy instance.
-var proxy = new Ext.data.HttpProxy({
-    url: 'app.php/users'
-});
- * </code></pre>
- * <p>For finer grained control, the proxy may also be configured with an <code>api</code>:</p>
- * <pre><code>
-// Use the api specification
-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'
-    }
-});
- * </code></pre>
- * <p>Creating a Writer enabled store:</p>
- * <pre><code>
-var store = new Ext.data.Store({
-    proxy: proxy,
-    reader: reader,
-    writer: writer
-});
- * </code></pre>
- * @constructor Create a new DataWriter
- * @param {Object} meta Metadata configuration options (implementation-specific)
- * @param {Object} recordType Either an Array of field definition objects as specified
- * in {@link Ext.data.Record#create}, or an {@link Ext.data.Record} object created
- * using {@link Ext.data.Record#create}.
- */
-Ext.data.DataWriter = function(config){
-    Ext.apply(this, config);
-};
-Ext.data.DataWriter.prototype = {
-
-    /**
-     * @cfg {Boolean} writeAllFields
-     * <tt>false</tt> by default.  Set <tt>true</tt> to have DataWriter return ALL fields of a modified
-     * record -- not just those that changed.
-     * <tt>false</tt> to have DataWriter only request modified fields from a record.
-     */
-    writeAllFields : false,
-    /**
-     * @cfg {Boolean} listful
-     * <tt>false</tt> by default.  Set <tt>true</tt> to have the DataWriter <b>always</b> write HTTP params as a list,
-     * even when acting upon a single record.
-     */
-    listful : false,    // <-- listful is actually not used internally here in DataWriter.  @see Ext.data.Store#execute.
-
-    /**
-     * Writes data in preparation for server-write action.  Simply proxies to DataWriter#update, DataWriter#create
-     * DataWriter#destroy.
-     * @param {String} action [CREATE|UPDATE|DESTROY]
-     * @param {Object} params The params-hash to write-to
-     * @param {Record/Record[]} rs The recordset write.
-     */
-    write : function(action, params, rs) {
-        var data    = [],
-        renderer    = action + 'Record';
-        // TODO implement @cfg listful here
-        if (Ext.isArray(rs)) {
-            Ext.each(rs, function(rec){
-                data.push(this[renderer](rec));
-            }, this);
-        }
-        else if (rs instanceof Ext.data.Record) {
-            data = this[renderer](rs);
-        }
-        this.render(action, rs, params, data);
-    },
-
-    /**
-     * abstract method meant to be overridden by all DataWriter extensions.  It's the extension's job to apply the "data" to the "params".
-     * The data-object provided to render is populated with data according to the meta-info defined in the user's DataReader config,
-     * @param {String} action [Ext.data.Api.actions.create|read|update|destroy]
-     * @param {Record[]} rs Store recordset
-     * @param {Object} params Http params to be sent to server.
-     * @param {Object} data object populated according to DataReader meta-data.
-     */
-    render : Ext.emptyFn,
-
-    /**
-     * @cfg {Function} updateRecord Abstract method that should be implemented in all subclasses
-     * (e.g.: {@link Ext.data.JsonWriter#updateRecord JsonWriter.updateRecord}
-     */
-    updateRecord : Ext.emptyFn,
-
-    /**
-     * @cfg {Function} createRecord Abstract method that should be implemented in all subclasses
-     * (e.g.: {@link Ext.data.JsonWriter#createRecord JsonWriter.createRecord})
-     */
-    createRecord : Ext.emptyFn,
-
-    /**
-     * @cfg {Function} destroyRecord Abstract method that should be implemented in all subclasses
-     * (e.g.: {@link Ext.data.JsonWriter#destroyRecord JsonWriter.destroyRecord})
-     */
-    destroyRecord : Ext.emptyFn,
-
-    /**
-     * Converts a Record to a hash.
-     * @param {Record}
-     * @private
-     */
-    toHash : function(rec) {
-        var map = rec.fields.map,
-            data = {},
-            raw = (this.writeAllFields === false && rec.phantom === false) ? rec.getChanges() : rec.data,
-            m;
-        Ext.iterate(raw, function(prop, value){
-            if((m = map[prop])){
-                data[m.mapping ? m.mapping : m.name] = value;
-            }
-        });
-        // we don't want to write Ext auto-generated id to hash.  Careful not to remove it on Models not having auto-increment pk though.
-        // We can tell its not auto-increment if the user defined a DataReader field for it *and* that field's value is non-empty.
-        // we could also do a RegExp here for the Ext.data.Record AUTO_ID prefix.
-        if (rec.phantom) {
-            if (rec.fields.containsKey(this.meta.idProperty) && Ext.isEmpty(rec.data[this.meta.idProperty])) {
-                delete data[this.meta.idProperty];
-            }
-        } else {
-            data[this.meta.idProperty] = rec.id
-        }
-        return data;
-    }
-};
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