Finished key.js

Author: guymorita

lib/algorithms.js

@@ -4,8 +4,6 @@ const async = require('async'),
   _ = require('underscore'),
   Key = require('./key');
 
-const CLASSNAME = config.className;
-
 // the jaccard coefficient outputs an objective measurement of the similarity between two objects. in this case, two users. the coefficient
 // is the result of summing the two users likes/dislikes incommon then summing they're likes/dislikes that they disagree on. this sum is
 // then divided by the number of items they both reviewed.

lib/input.js

@@ -1,9 +1,8 @@
 
 const config = require('./config.js'),
   algo = require('./algorithms.js'),
-  async = require('async');
-
-const CLASSNAME = config.className;
+  async = require('async'),
+  Key = require('./key');
 
 const updateSequence = function(userId, itemId, options = {}){
   let updateWilson = true;
@@ -41,12 +40,9 @@ const changeRating = function(userId, itemId, options){
 
   const removeRating = options['removeRating'] ? true : false;
 
-  const feeling = options['liked'] ? 'liked' : 'disliked';
-  const mostFeeling = options['liked'] ? 'mostLiked' : 'mostDisliked';
-
-  const feelingItemSet = [CLASSNAME, 'item', itemId, feeling].join(':');
-  const feelingUserSet = [CLASSNAME, 'user', userId, feeling].join(':');
-  const mostFeelingSet = [CLASSNAME, mostFeeling].join(':');
+  const feelingItemSet = options['liked'] ? Key.itemLikedBySet(itemId) : Key.itemDislikedBySet(itemId);
+  const feelingUserSet = options['liked'] ? Key.userLikedSet(userId) : Key.userDislikedSet(userId);
+  const mostFeelingSet = options['liked'] ? Key.mostLiked() : Key.mostDisliked();
 
   return new Promise((resolve, reject) => {
     Promise.resolve().then(() => {

lib/key.js

@@ -42,7 +42,7 @@ class Key {
   }
 
   mostDisliked() {
-    this.KeyArr = ['mostDisliked'];
+    this.keyArr = ['mostDisliked'];
     return this.joinKey();
   }
 

lib/stat.js

@@ -3,8 +3,6 @@ const config = require('./config.js'),
   client = require('./client.js'),
   Key = require('./key');
 
-const CLASSNAME = config.className;
-
 const stat = {
   recommendFor: function(userId, numberOfRecs){
     return new Promise((resolve, reject) => {
@@ -36,14 +34,14 @@ const stat = {
   },
   mostLiked: function(){
     return new Promise((resolve, reject) => {
-      client.zrevrangeAsync([CLASSNAME, 'mostLiked'].join(":"), 0, -1).then((results) => {
+      client.zrevrangeAsync(Key.mostLiked(), 0, -1).then((results) => {
         resolve(results);
       });
     });
   },
   mostDisliked: function(){
     return new Promise((resolve, reject) => {
-      client.zrevrangeAsync([CLASSNAME, 'mostDisliked'].join(":"), 0, -1).then((results) => {
+      client.zrevrangeAsync(Key.mostDisliked(), 0, -1).then((results) => {
         resolve(results);
       });
     });