Exception Type: DoesNotExist at /

Please, Can someone help me with the error below?

Traceback (most recent call last):
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/env/lib/python3.11/site-packages/django/core/handlers/exception.py”, line 55, in inner
response = get_response(request)
^^^^^^^^^^^^^^^^^^^^^
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/env/lib/python3.11/site-packages/django/core/handlers/base.py”, line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/mysite/myapp/views.py”, line 8, in index
consume = Food.objects.get(name=food_consumed)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/env/lib/python3.11/site-packages/django/db/models/manager.py”, line 87, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/env/lib/python3.11/site-packages/django/db/models/query.py”, line 637, in get
raise self.model.DoesNotExist(
^

Exception Type: DoesNotExist at /
Exception Value: Food matching query does not exist.

from django.shortcuts import render, redirect
from .models import Food,Consume
# Create your views here.
def index(request):
 
    if request.method =="POST":
        food_consumed = request.POST['food_consumed']
        consume = Food.objects.get(name=food_consumed)
        user = request.user
        consume = Consume(user=user,food_consumed=consume)
        consume.save()
        foods = Food.objects.all()
        consumed_food = Consume.objects.filter(user=user)
 
    else:
        foods = Food.objects.all()
        consumed_food = Consume.objects.filter(user=request.user)
 
    return render(request,'myapp/index.html',{'foods':foods,'consumed_food':consumed_food})
 
def delete_consume(request,id):
    consumed_food = Consume.objects.get(id=id)
    if request.method =='POST':
        consumed_food.delete()
        return redirect('')
    return render(request,'myapp/delete.html')
from django.db import models
from django.contrib.auth.models import User
# Create your models here.
 
class Food(models.Model):
 
    def __str__(self):
        return self.name
 
    name = models.CharField(max_length=100)
    carbs = models.FloatField()
    protein = models.FloatField()
    fats = models.FloatField()
    calories = models.IntegerField()
 
class Consume(models.Model):
    user = models.ForeignKey(User,on_delete=models.CASCADE)
    food_consumed = models.ForeignKey(Food,on_delete=models.CASCADE)
<html>
<head>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <script src="https://cdn.jsdelivr.net/npm/chart.js@2.9.3/dist/Chart.min.js"></script>
</head>
<body>
    <div class="container">
        <div class="row">
            <div class="col-md-12">
                <nav class="navbar navbar-dark bg-primary">
                    <span class="navbar-brand">Calorie Tracker</span>
                </nav>
            </div>
        </div>

        <br><br><br>

        <h4>Calorie Goal</h4>
        <br>
        <div class="row">
            <div class="col-md-9 offset-1">
                <div class="progress">
                    <div class="progress-bar bg-success" role="progressbar" style="width: 0%" aria-valuenow="0" aria-valuemin="0" aria-valuemax="0"></div>
                </div>
            </div>
        </div>
        <br><br>
        <div class="row">
            <div class="col-md-12">
                <form method="POST">
                    {% csrf_token %}
                    <div class="form-group row">
                        <label class="col-md-2">
                            <b>Select Food To Add </b>    
                        </label>
                        <select class="col-md-6 form-control" name="food_consumed" id="food_consumed">
                            {% for food in foods %}
                                <option value="{‌{food.name}}">{{food.name}}</option>
                            {% endfor %}
                        </select>
                        <button class="btn btn-success" type="submit">Add</button>
                    </div>
                </form>
            </div>
        </div>


        <div class="row">
            <div class="col-md-7">
                <div >
                    <h4> Today's Consumption</h4>
                </div>

                <table id="table" class="table table-striped table-primary">
                    <tr class="bg-primary text-white">
                        <th>Food item</th>
                        <th>Carbs(gm)</th>
                        <th>Protein(gm)</th>
                        <th>Fats(gm)</th>
                        <th>Calories(Kcal)</th>
                        <th>Remove Item</th>
                    </tr>
                    {% for c in consumed_food %}
                    <tr>
                        <td>{‌{ c.food_consumed.name }}</td>
                        <td>{‌{ c.food_consumed.carbs }}</td>
                        <td>{‌{ c.food_consumed.protein }}</td>
                        <td>{‌{ c.food_consumed.fats }}</td>
                        <td>{‌{ c.food_consumed.calories }}</td>
                        <td><a class="btn btn-danger" href="{% url 'delete' c.id %}">X</a></td>
                    </tr>
                    {% endfor %}

                    <tr>
                        <td id="name"><b>Total</b></td>
                        <td id="totalCarbs"><b></b></td>
                        <td id="totalProtien"><b></b></td>
                        <td id="totalFats"><b></b></td>
                        <td id="totalCalories"><b></b></td>
                    </tr>                             
                </table>
            </div>

            <div class="col-md-5 ">
                <div class="">
                    <h4>Today's breakdown</h4>
                </div>
                <div class="card-header text-white bg-primary">
                    <h4>Macronutrients breakdown</h4>
                </div>
                <div class="col-md-12">
                    <canvas id="myChart" width="400" height="400"></canvas>
                </div>
            </div>
        </div>
    </div>
</body>
<script>
    var table = document.getElementById("table");
    var carbs=0,protein=0,fats=0,calories=0;
 
    for(var i=1;i<table.rows.length-1;i++){
        console.log(table.rows[i].cells[1].innerHTML);
        carbs +=parseFloat(table.rows[i].cells[1].innerHTML);
        carbs = Math.round(carbs);
        protein+= parseFloat(table.rows[i].cells[2].innerHTML);
        protein = Math.round(protein)
        fats+= parseFloat(table.rows[i].cells[3].innerHTML);
        fats = Math.round(fats);
        calories+= parseFloat(table.rows[i].cells[4].innerHTML);
        calories = Math.round(calories);
    }
    console.log(fats);
 
    document.getElementById("totalCarbs").innerHTML = '<b>' + carbs+'(gm)</b>';
 
    document.getElementById("totalProtien").innerHTML ='<b>' + protein+'(gm)</b>';
 
    document.getElementById("totalFats").innerHTML = '<b>' +fats+'(gm)</b>';
 
    document.getElementById("totalCalories").innerHTML = '<b>' +calories+'(Kcal)</b>';
 
    var calPer = (calories/2000) *100;
    document.getElementsByClassName("progress-bar")[0].setAttribute("style","width:"+calPer+"%");
 
 
    var total  = carbs+protein+fats;
    var carbsP = Math.round((carbs/total)*100);
    var protienP = Math.round((protein/total)*100);
    var fatsP = Math.round((fats/total)*100);
 
 
 
    var ctx = document.getElementById('myChart').getContext('2d');
    var myChart = new Chart(ctx, {
    type: 'doughnut',
    data: {
        labels: ['Carbs '+carbsP+'%', 'Protein '+protienP+'%', 'Fats '+fatsP+'%'],
        datasets: [{
            label: '# of Votes',
            data: [carbsP, protienP, fatsP],
            backgroundColor: [
                'rgba(255, 99, 132, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(255, 206, 86, 1)',
                
            ],
            borderColor: [
                'rgba(255, 99, 132, 1)',
                'rgba(54, 162, 235, 1)',
                'rgba(255, 206, 86, 1)',
                
            ],
            borderWidth: 1
        }]
    },
    
});
 
 
</script>
</html>

Error you are getting is because of this line because when you are running this query it throws error if result is not found, put this block of code within try except and print the consume variable like

try:
    consume = Food.objects.get(name=food_consumed)
    print("------consume------", consume)
except Exception as e:
    print("------e------", e)
    consume = Food.objects.get(name=food_consumed)

Still getting the error as follows:

Traceback (most recent call last):
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/mysite/myapp/views.py”, line 9, in index
consume = Food.objects.get(name=food_consumed)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/env/lib/python3.11/site-packages/django/db/models/manager.py”, line 87, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/env/lib/python3.11/site-packages/django/db/models/query.py”, line 637, in get
raise self.model.DoesNotExist(
^

During handling of the above exception (Food matching query does not exist.), another exception occurred:
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/env/lib/python3.11/site-packages/django/core/handlers/exception.py”, line 55, in inner
response = get_response(request)
^^^^^^^^^^^^^^^^^^^^^
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/env/lib/python3.11/site-packages/django/core/handlers/base.py”, line 197, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/mysite/myapp/views.py”, line 13, in index
consume = Food.objects.get(name=food_consumed)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/env/lib/python3.11/site-packages/django/db/models/manager.py”, line 87, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File “/Users/shribhamare/Desktop/Coding/DjangoProjects/calorietracker/env/lib/python3.11/site-packages/django/db/models/query.py”, line 637, in get
raise self.model.DoesNotExist(
^

Exception Type: DoesNotExist at /
Exception Value: Food matching query does not exist.

from django.shortcuts import render, redirect
from .models import Food, Consume
# Create your views here.
def index(request):
 
    if request.method =="POST":
        food_consumed = request.POST['food_consumed']
        try:
            consume = Food.objects.get(name=food_consumed)
            print("------consume------", consume)
        except Exception as e:
            print("------e------", e)
            consume = Food.objects.get(name=food_consumed)
        user = request.user
        consume = Consume(user=user,food_consumed=consume)
        consume.save()
        foods = Food.objects.all()
        consumed_food = Consume.objects.filter(user=user)
 
    else:
        foods = Food.objects.all()
        consumed_food = Consume.objects.filter(user=request.user)
 
    return render(request,'myapp/index.html',{'foods':foods,'consumed_food':consumed_food})
 
def delete_consume(request,id):
    consumed_food = Consume.objects.get(id=id)
    if request.method =='POST':
        consumed_food.delete()
        return redirect('/')
    return render(request,'myapp/delete.html')

My mistake, in the except block consume = Food.objects.get(name=food_consumed) this line is not needed here you can return something else in the except block so that your remaining code will not execute something like

       except Exception as e:
           print("------e------", e)
           # return response or render or httpresponse or error to show the error