Promises (first look)

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Small fixes

dev/Promises/User/Ajax.js

@@ -0,0 +1,58 @@
+
+(function () {
+
+	'use strict';
+
+	var
+		_ = require('_'),
+		ko = require('ko'),
+
+		AbstractAjaxPromises = require('Promises/AbstractAjax'),
+
+		MessageModel = require('Model/Message')
+	;
+
+	/**
+	 * @constructor
+	 * @extends AbstractAjaxPromises
+	 */
+	function PromisesUserAjax()
+	{
+		AbstractAjaxPromises.call(this);
+
+		this.messageListSimple.loading = ko.observable(false).extend({'rateLimit': 1});
+		this.messageListSimple.hash = '';
+		this.messageListSimple.cache = null;
+	}
+
+	PromisesUserAjax.prototype.messageListSimple = function (sFolder, aUids)
+	{
+		var self = this, sHash = sFolder + '~' + aUids.join('/');
+		if (sHash === this.messageListSimple.hash && this.messageListSimple.cache)
+		{
+			return this.fastPromise(this.messageListSimple.cache);
+		}
+
+		return this.abort('MessageListSimple')
+			.postRequest('MessageListSimple', this.messageListSimple.loading, {
+				'Folder': sFolder,
+				'Uids': aUids
+			}).then(function (aData) {
+
+				var aResult = _.compact(_.map(aData, function (aItem) {
+					return MessageModel.newInstanceFromJson(aItem);
+				}));
+
+				self.messageListSimple.hash = sHash;
+				self.messageListSimple.cache = aResult;
+
+				return aResult;
+			})
+		;
+	};
+
+	_.extend(PromisesUserAjax.prototype, AbstractAjaxPromises.prototype);
+
+	module.exports = new PromisesUserAjax();
+
+}());