1 files changed, 81 insertions, 0 deletions
diff --git a/frontend/beta/js/YUI-extensions/data/JSONDataModel.js b/frontend/beta/js/YUI-extensions/data/JSONDataModel.js
new file mode 100644
index 0000000..ca48dce
--- a/dev/null
+++ b/frontend/beta/js/YUI-extensions/data/JSONDataModel.js
@@ -0,0 +1,81 @@
+/**
+ * @class YAHOO.ext.grid.JSONDataModel
+ * This is an implementation of a DataModel used by the Grid. It works 
+ * with JSON data.
+ * <br>Example schema:
+ * <pre><code>
+ * var schema = {
+ *     root: 'Results.Result',
+ *     id: 'ASIN',
+ *     fields: ['Author', 'Title', 'Manufacturer', 'ProductGroup']
+ * };
+ * </code></pre>
+ * @extends YAHOO.ext.grid.LoadableDataModel
+ * @constructor
+*/
+YAHOO.ext.grid.JSONDataModel = function(schema){
+    YAHOO.ext.grid.JSONDataModel.superclass.constructor.call(this, YAHOO.ext.grid.LoadableDataModel.JSON);
+    /**@private*/
+    this.schema = schema;
+};
+YAHOO.extendX(YAHOO.ext.grid.JSONDataModel, YAHOO.ext.grid.LoadableDataModel, {
+    /**
+     * Overrides loadData in LoadableDataModel to process JSON data
+     * @param {Object} data The JSON object to load
+     * @param {Function} callback
+     */
+    loadData : function(data, callback, keepExisting){
+            var idField = this.schema.id;
+            var fields = this.schema.fields;
+            try{
+                if(this.schema.totalProperty){
+                var v = parseInt(eval('data.' + this.schema.totalProperty), 10);
+                if(!isNaN(v)){
+                    this.totalCount = v;
+                }
+            }
+                var rowData = [];
+                var root = eval('data.' + this.schema.root);
+                for(var i = 0; i < root.length; i++){
+                        var node = root[i];
+                        var colData = [];
+                        colData.node = node;
+                        colData.id = (typeof node[idField] != 'undefined' && node[idField] !== '' ? node[idField] : String(i));
+                        for(var j = 0; j < fields.length; j++) {
+                            var val = node[fields[j]];
+                            if(typeof val == 'undefined'){
+                                val = '';
+                            }
+                        if(this.preprocessors[j]){
+                            val = this.preprocessors[j](val);
+                        }
+                        colData.push(val);
+                    }
+                    rowData.push(colData);
+                }
+                if(keepExisting !== true){
+                  this.removeAll();
+                }
+            this.addRows(rowData);
+                if(typeof callback == 'function'){
+                    callback(this, true);
+                }
+                  this.fireLoadEvent();
+            }catch(e){
+                this.fireLoadException(e, null);
+                if(typeof callback == 'function'){
+                    callback(this, false);
+                }
+            }
+    },
+    
+    /**
+     * Overrides getRowId in DefaultDataModel to return the ID value of the specified node. 
+     * @param {Number} rowIndex
+     * @return {Number}
+     */
+    getRowId : function(rowIndex){
+        return this.data[rowIndex].id;
+    }
+});

diff --git a/frontend/beta/js/YUI-extensions/data/JSONDataModel.js b/frontend/beta/js/YUI-extensions/data/JSONDataModel.js new file mode 100644 index 0000000..ca48dce --- a/dev/null +++ b/frontend/beta/js/YUI-extensions/data/JSONDataModel.js
@@ -0,0 +1,81 @@
	1
	2	/**
	3	* @class YAHOO.ext.grid.JSONDataModel
	4	* This is an implementation of a DataModel used by the Grid. It works
	5	* with JSON data.
	6	* <br>Example schema:
	7	* <pre><code>
	8	* var schema = {
	9	* root: 'Results.Result',
	10	* id: 'ASIN',
	11	* fields: ['Author', 'Title', 'Manufacturer', 'ProductGroup']
	12	* };
	13	* </code></pre>
	14	* @extends YAHOO.ext.grid.LoadableDataModel
	15	* @constructor
	16	*/
	17	YAHOO.ext.grid.JSONDataModel = function(schema){
	18	YAHOO.ext.grid.JSONDataModel.superclass.constructor.call(this, YAHOO.ext.grid.LoadableDataModel.JSON);
	19	/*@private/
	20	this.schema = schema;
	21	};
	22	YAHOO.extendX(YAHOO.ext.grid.JSONDataModel, YAHOO.ext.grid.LoadableDataModel, {
	23	/**
	24	* Overrides loadData in LoadableDataModel to process JSON data
	25	* @param {Object} data The JSON object to load
	26	* @param {Function} callback
	27	*/
	28	loadData : function(data, callback, keepExisting){
	29	var idField = this.schema.id;
	30	var fields = this.schema.fields;
	31	try{
	32	if(this.schema.totalProperty){
	33	var v = parseInt(eval('data.' + this.schema.totalProperty), 10);
	34	if(!isNaN(v)){
	35	this.totalCount = v;
	36	}
	37	}
	38	var rowData = [];
	39	var root = eval('data.' + this.schema.root);
	40	for(var i = 0; i < root.length; i++){
	41	var node = root[i];
	42	var colData = [];
	43	colData.node = node;
	44	colData.id = (typeof node[idField] != 'undefined' && node[idField] !== '' ? node[idField] : String(i));
	45	for(var j = 0; j < fields.length; j++) {
	46	var val = node[fields[j]];
	47	if(typeof val == 'undefined'){
	48	val = '';
	49	}
	50	if(this.preprocessors[j]){
	51	val = this.preprocessors[j](val);
	52	}
	53	colData.push(val);
	54	}
	55	rowData.push(colData);
	56	}
	57	if(keepExisting !== true){
	58	this.removeAll();
	59	}
	60	this.addRows(rowData);
	61	if(typeof callback == 'function'){
	62	callback(this, true);
	63	}
	64	this.fireLoadEvent();
	65	}catch(e){
	66	this.fireLoadException(e, null);
	67	if(typeof callback == 'function'){
	68	callback(this, false);
	69	}
	70	}
	71	},
	72
	73	/**
	74	* Overrides getRowId in DefaultDataModel to return the ID value of the specified node.
	75	* @param {Number} rowIndex
	76	* @return {Number}
	77	*/
	78	getRowId : function(rowIndex){
	79	return this.data[rowIndex].id;
	80	}
	81	});