Exercise Tracker - Can't pass the last test

1

Hi,

I have been looking around for some clues but I can’t seem to figure out how to retrieve a part of the log. Any help is greatly appreciated. Here is my code:

// 4. I can retrieve a full exercise log of any user by getting /api/exercise/log with a parameter of userId(_id). 
// Return will be the user object with added array log and count (total exercise count).

// 5. I can retrieve part of the log of any user by also passing along optional parameters of from & to or limit. 
// (Date format yyyy-mm-dd, limit = int)
app.get('/api/exercise/log', (req, res) => {
  const {userId, from, to, limit} = req.query;
  
  const log = getExercisesFromUserWithId(userId);
  
  if(from){
    const fromDate = new Date(from);
    log = log.filter(exe => new Date(exe.date) > fromDate);  
  }
  
  if(to){
    const toDate = new Date(to);
    log = log.filter(exe => new Date(exe.date) < toDate); 
  }
  
  if(limit){
    log = log.slice(0, limit);
  }             
  
  res.json({
    _id: userId,
    username: getUsernameById(userId),
    count: log.length,
    log
  });
});
2

hey there !
i’m on the same project right now !
i succeeded to pass the part of ‘retrieving the log’, & here is how i did that:

app.get('/api/exercise/log', function(req, res, next){
  //get user id
  let id = req.query.userId;
  //check if id is not null
  if(id){
    userModel.findById(id, function(err, doc){
       if(err) {return next(err);}
       else{
         //find all exercises which have the same userName
         exerciseModel.find({'userName': doc.userName}, function(error, data){
           //data retrieves array of logs
           if(error){ return next(error); }
            //we need to have both FROM and TO
            if((req.query.from) && (req.query.to)){
              data = data.filter((d)=> (Date.parse(d.date) >= Date.parse(req.query.from)) && (Date.parse(d.date) <= Date.parse(req.query.to)));
            }
            //check if index is smaller then LIMIT
            if(req.query.limit){
              data = data.filter((d,i)=> i < req.query.limit);
            }
            res.json({'_id': doc._id, 'userName': doc.userName, 'conunt': data.length, 'log':data});
         })
       }
    })
  }
})

so i think u have 2 problems.
1.u need to have in the IF condition both FROM & TO,
2.u can’t compare the Date object itself, so i parsed it to UNIX time (time in seconds), and then i compare it.
hope i helped :upside_down_face:

1 Like
3

Hi,

Thank you for getting back to me but I don’t really get it. I don’t know why including both FROM & TO would make any difference.

app.get('/api/exercise/log', (req, res) => {
  const {userId, from, to, limit} = req.query;
  
  const log = getExercisesFromUserWithId(userId);
  
  if(from && to){
    const fromDate = new Date(from);
    const toDate = new Date(to);
    log = log.filter(exe => new Date.parse(exe.date) > fromDate) && log.filter(exe => new Date.parse(exe.date) < toDate);  
  }
  
  if(limit){
    log = log.slice(0, limit);
  }             
  
  res.json({
    _id: userId,
    username: getUsernameById(userId),
    count: log.length,
    log
  });
});
4

hey !
it’s not suppose to make the code not work, but the demands of the project
were:

passing along optional parameters of from & to or limit.

so the main problem in code functionality is the Date object comparison.

5

but you can compare date objects with filter , you dont need to parse them into unix

6

Been away from coding due to other commitments but I finally figured it out. Thx.

7

what was the solution? Im having the same problem. Please share

8 
/ 5. I can retrieve part of the log of any user by also passing along optional parameters of from & to or limit. 
// (Date format yyyy-mm-dd, limit = int)
app.get('/api/exercise/log', (req, res) => {
  const {userId, from, to, limit} = req.query;
  
  let temp=getExercisesFromUserWithId(userId);
  
  if(from){
    const fromDate= new Date(from)
    temp = temp.filter(exe => new Date(exe.date) > fromDate);
  }
  
  if(to){
    const toDate = new Date(to)
    temp = temp.filter(exe => new Date(exe.date) < toDate);
  }
  
  if(limit){
    temp = temp.slice(0,limit);
  }
  
  const log = {
    _id:userId,
    username:getUsernameById(userId),
    count:parseFloat(temp.length),
    log:temp
  }
  
  res.json(log)
});
1 Like