Adding columns on Meteor client side

Objective: Create a Total row displaying the sum of each column, such as Course1 grades, Course2 grades, and so on. I have set up a Session to handle this calculation on the client side to ensure it refreshes when the browser is refreshed.

The data structure includes entries like {Student1, Course1, Course2, Course 3, Course 4, Course 5}, {Student2, Course1, Course2, Course 3, Course 4, Course 5} and so forth.

I'm contemplating using multiple variables like {{sum_course1}} in the HTML with calculations done in Template helpers, but that seems repetitive. Is there a better approach? I've looked into server-side solutions like the aggr function, but haven't found anything ideal for the client side.

Currently, I have a working solution for calculating sums, but I am struggling to find a more efficient way to do this for all the different courses.

    Template.body.helpers({
      sum:function(){
       var sum=0;
       var cursor=Tasks.find({});
       cursor.forEach(function(Tasks){
         sum = Tasks.courseone + sum;
       });
       return sum;
     }
    });

Answer №1

After some research, I managed to find a solution to aggregate data on the client side using a handy package named Mongo Sum (). It was super easy to use and it perfectly met my requirements :)

meteor add peppelg:mongo-sum

Template.body.helpers({
  sum:function(){
    var cursor=Tasks.find({});
    return cursor.sum('courseone');
   }
});

I wanted to share this information in case it can assist others seeking a similar solution!

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