1 files changed, 146 insertions, 0 deletions
diff --git a/lib/dojo/store/JsonRest.js b/lib/dojo/store/JsonRest.js
new file mode 100644
index 000000000..5f9254c3e
--- /dev/null
+++ b/lib/dojo/store/JsonRest.js
@@ -0,0 +1,146 @@
+/*
+	Copyright (c) 2004-2011, The Dojo Foundation All Rights Reserved.
+	Available via Academic Free License >= 2.1 OR the modified BSD license.
+	see: http://dojotoolkit.org/license for details
+*/
+
+
+if(!dojo._hasResource["dojo.store.JsonRest"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojo.store.JsonRest"] = true;
+dojo.provide("dojo.store.JsonRest");
+dojo.require("dojo.store.util.QueryResults");
+
+
+dojo.declare("dojo.store.JsonRest", null, {
+	constructor: function(/*dojo.store.JsonRest*/ options){
+		// summary:
+		//		This is a basic store for RESTful communicating with a server through JSON
+		//		formatted data.
+		// options:
+		//		This provides any configuration information that will be mixed into the store
+		dojo.mixin(this, options);
+	},
+	// target: String
+	//		The target base URL to use for all requests to the server. This string will be
+	// 	prepended to the id to generate the URL (relative or absolute) for requests
+	// 	sent to the server
+	target: "",
+	// idProperty: String
+	//		Indicates the property to use as the identity property. The values of this
+	//		property should be unique.
+	idProperty: "id",
+
+	get: function(id, options){
+		//	summary:
+		//		Retrieves an object by its identity. This will trigger a GET request to the server using
+		//		the url `this.target + id`.
+		//	id: Number
+		//		The identity to use to lookup the object
+		//	returns: Object
+		//		The object in the store that matches the given id.
+		var headers = options || {};
+		headers.Accept = "application/javascript, application/json";
+		return dojo.xhrGet({
+			url:this.target + id,
+			handleAs: "json",
+			headers: headers
+		});
+	},
+	getIdentity: function(object){
+		// summary:
+		//		Returns an object's identity
+		// object: Object
+		//		The object to get the identity from
+		//	returns: Number
+		return object[this.idProperty];
+	},
+	put: function(object, options){
+		// summary:
+		//		Stores an object. This will trigger a PUT request to the server
+		//		if the object has an id, otherwise it will trigger a POST request.
+		// object: Object
+		//		The object to store.
+		// options: dojo.store.api.Store.PutDirectives?
+		//		Additional metadata for storing the data.  Includes an "id"
+		//		property if a specific id is to be used.
+		//	returns: Number
+		options = options || {};
+		var id = ("id" in options) ? options.id : this.getIdentity(object);
+		var hasId = typeof id != "undefined";
+		return dojo.xhr(hasId && !options.incremental ? "PUT" : "POST", {
+				url: hasId ? this.target + id : this.target,
+				postData: dojo.toJson(object),
+				handleAs: "json",
+				headers:{
+					"Content-Type": "application/json",
+					"If-Match": options.overwrite === true ? "*" : null,
+					"If-None-Match": options.overwrite === false ? "*" : null
+				}
+			});
+	},
+	add: function(object, options){
+		// summary:
+		//		Adds an object. This will trigger a PUT request to the server
+		//		if the object has an id, otherwise it will trigger a POST request.
+		// object: Object
+		//		The object to store.
+		// options: dojo.store.api.Store.PutDirectives?
+		//		Additional metadata for storing the data.  Includes an "id"
+		//		property if a specific id is to be used.
+		options = options || {};
+		options.overwrite = false;
+		return this.put(object, options);
+	},
+	remove: function(id){
+		// summary:
+		//		Deletes an object by its identity. This will trigger a DELETE request to the server.
+		// id: Number
+		//		The identity to use to delete the object
+		return dojo.xhrDelete({
+			url:this.target + id
+		});
+	},
+	query: function(query, options){
+		// summary:
+		//		Queries the store for objects. This will trigger a GET request to the server, with the
+		//		query added as a query string.
+		// query: Object
+		//		The query to use for retrieving objects from the store.
+		// options: dojo.store.api.Store.QueryOptions?
+		//		The optional arguments to apply to the resultset.
+		//	returns: dojo.store.api.Store.QueryResults
+		//		The results of the query, extended with iterative methods.
+		var headers = {Accept: "application/javascript, application/json"};
+		options = options || {};
+
+		if(options.start >= 0 || options.count >= 0){
+			headers.Range = "items=" + (options.start || '0') + '-' +
+				(("count" in options && options.count != Infinity) ?
+					(options.count + (options.start || 0) - 1) : '');
+		}
+		if(dojo.isObject(query)){
+			query = dojo.objectToQuery(query);
+			query = query ? "?" + query: "";
+		}
+		if(options && options.sort){
+			query += (query ? "&" : "?") + "sort(";
+			for(var i = 0; i<options.sort.length; i++){
+				var sort = options.sort[i];
+				query += (i > 0 ? "," : "") + (sort.descending ? '-' : '+') + encodeURIComponent(sort.attribute);
+			}
+			query += ")";
+		}
+		var results = dojo.xhrGet({
+			url: this.target + (query || ""),
+			handleAs: "json",
+			headers: headers
+		});
+		results.total = results.then(function(){
+			var range = results.ioArgs.xhr.getResponseHeader("Content-Range");
+			return range && (range=range.match(/\/(.*)/)) && +range[1];
+		});
+		return dojo.store.util.QueryResults(results);
+	}
+});
+
+}