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Bug when editing comments.

There is a bug that throws an error in conjunction with the route and .ejs template which crashes the application while editing posted comments.

This is in routes/comments.js

Line 46:

// ERROR PRONE CODE BELOW UNTIL =======>

// COMMENT EDIT ROUTE
router.get("/:comment_id/edit", middleware.checkCommentOwnership, function(req, res) {
  Comment.findById(req.params.comment_id, function(err, foundComment) {
    if(err) {
      res.redirect("back");
    } else {
      res.render("comments/edit", {campground_id: req.params.id, comment: foundComment});
    }
  });
});

// COMMENT UPDATE
router.put("/:comment_id", middleware.checkCommentOwnership, function(req, res) {
  Comment.findByIdAndUpdate(req.params.comment_id, req.body.comment, function(err, updatedComment) {
    if(err) {
      res.redirect("back");
    } else {
      res.redirect("/campgrounds/" + req.params.id );
    }
  })
});

// <============== ERROR PRONE CODE ENDS HERE (PS. Remember to check comment section in show.ejs in order to solve the problem.)

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