added methods and routes for getting an exercises history, and the sum of a workouts musclearrays -- incl a modifier

routes/api.js

@@ -30,4 +30,43 @@ module.exports = function(app) {
 
   });
 
+  app.get('/api/getexercisemodifier/:userid/:exerciseid', function(req, res) {
+      res.contentType('json');
+      console.log('userID' + req.params.userid);
+      console.log('exerciseID' + req.params.exerciseid);
+      //DB search workouts
+          // where userid
+          //where exerciseid
+
+    Workout
+    .where('userID', req.params.userid)
+    .where('elements.exerciseID', req.params.exerciseid)
+    .select('elements')
+    // .exec(callback);
+
+    // workout.findOne({_id: req.params._id})
+    // //.populate('elements.exerciseID')
+    .exec(function(err, workout) {
+      if (err) {
+        return next(err);
+      }
+      if (! workout) {
+        return res.send('Not found', 404);
+      }
+         //need for loop for workout as it returns an array
+         var filteredarray = workout[0].elements.filter( function(i) {
+          return i.exerciseID == req.params.exerciseid;
+        });
+         // then for each in filtered array  grab sets reps weight
+         // punch that into an array.
+         
+      // res.send(filteredarray);
+      // //console.log("hmm" + JSON.stringify(workout[0].elements));
+      res.send(workout);
+      //next();
+    });
+
+
+  });
+
 };