add friend button invisible if user is already friend

public/templates/account.tpl

@@ -72,6 +72,8 @@ var theirid = '{theirid}';
 
 (function() {
 
+	var isFriend = {isFriend};
+
     function addCommas(text) {
         return text.replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,");
     }
@@ -90,7 +92,10 @@ var theirid = '{theirid}';
         
         if( yourid !== theirid) {
             editLink.hide();
-            addFriendBtn.show();
+            if(isFriend)
+           		addFriendBtn.hide();
+           	else
+           		addFriendBtn.show();
         }
     	else {
     		addFriendBtn.hide();        

src/routes/user.js

@@ -244,7 +244,10 @@ var user = require('./../user.js'),
 				});
 			} else {
 				getUserDataByUserName(req.params.username, callerUID, function(userData) {
-					res.send(JSON.stringify(userData));
+					user.isFriend(callerUID, userData.theirid, function(isFriend) {
+						userData.isFriend = isFriend;
+						res.send(JSON.stringify(userData));
+					});
 				});						
 			}
 		
@@ -252,8 +255,6 @@ var user = require('./../user.js'),
 
 		app.get('/api/users/:username?/:section?', api_method);
 
-
-
 		function getUserDataByUserName(username, callerUID, callback) {
 		
 			user.get_uid_by_username(username, function(uid) {

src/user.js

@@ -378,7 +378,7 @@ var config = require('../config.js'),
 				for(var i=0, ii=data.length; i<ii; ++i) {
 					User.getUserData(data[i], function(userData){
 						friendsData.push(userData);
-						console.log(friendsData);
+						
 						if(friendsData.length == data.length)
 							callback(friendsData);			
 					});	
@@ -398,6 +398,16 @@ var config = require('../config.js'),
 		});
 	}
 
+	User.isFriend = function(uid, friendid, callback) {
+		RDB.sismember('user:'+uid+':friends', friendid, function(err, data){
+			if(err === null){
+				callback(data === 1);
+			}
+			else
+				console.log(err);
+		});
+	}
+
 	User.exists = function(username, callback) {
 		User.get_uid_by_username(username, function(exists) {
 			exists = !!exists;