Django: Using variable taken from model as default value in input in bootstrap form

Question

I'm new in Django and now I'm working on my first project.

I created a form in bootstrap in django. Data from inputs are used to update previous set of data in model nom and to processing in view home. How can I use previous data from nom database as default values in input. Is there any easy way?

Thanks

bootstrap form

<div class="container my-container">
    <form  action="{% url 'home' %}"  method="Post">
        {% csrf_token %}

        <div class= "row my-row">
              <div class="col-4 my-col">


                          Specyfikacja z dni:

              </div>
              <div class="col-4 my-col">


                          <input type="date" placeholder="0" name="datebeg" size="1" />

              </div>
              <div class="col-4 my-col">
                       <input type="date" placeholder="0" name="dateend" size="1" />
              </div>



          </div>
          <div class= "row my-row">
              <div class="col-3 my-col">

                          <input type="text" placeholder="0" name="li200" size="1" />

              </div>
              <div class="col my-col">
                       <h3><span class="badge badge-secondary"> {% if liczba %}
                           {{ liczba }}

                           {% endif %}

                       </span></h3>
              </div>

              <div class="col my-col">
                       <h3><span class="badge badge-secondary"> {% if ls %}
                           {{ ls }}

                           {% endif %}

                       </span></h3>
              </div>

          </div>
          <div class= "row my-row">
              <div class="col-3 my-col">

                          <input type="text" placeholder="0" name="li100" size="1" />

              </div>
              <div class="col my-col">
                       <h3><span class="badge badge-secondary"> {% if liczba1 %}
                           {{ liczba1 }}

                           {% endif %}

                       </span></h3>
              </div>
              <div class="col my-col">
                       <h3><span class="badge badge-secondary"> {% if ls1 %}
                           {{ ls1 }}

                           {% endif %}

                       </span></h3>
              </div>
          </div>
          <div class= "row my-row">
              <div class="col-3 my-col">

                          <input type="text" placeholder="0" name="li50" size="1" />

              </div>
              <div class="col my-col">
                       <h3><span class="badge badge-secondary"> {% if liczba3 %}
                           {{ liczba3 }}

                           {% endif %}
                       </span></h3>

              </div>
              <div class="col my-col">
                       <h3><span class="badge badge-secondary" name="superowo"> {% if ls3 %}
                           {{ ls3 }}

                           {% endif %}

                       </span></h3>
              </div>
          </div>
                  <div class= "row my-row">
              <div class="col-3 my-col">



              </div>
              <div class="col my-col">
                       <h3><span class="badge badge-secondary"> {% if suma %}
                           {{ suma }}

                           {% endif %}
                       </span></h3>

              </div>
          </div>

              <input type="submit" class="btn" value="Click" href="{% url 'home'%}" name="print_btn">
              <a class="btn btn-primary" type="submit" href="{% url 'some_view'%}" >Do PDF</a>
           <div class="align-right">

      </div>

    </form>


   </div>

views

from django.shortcuts import render
from . import slownie
from .models import nom
from django.conf import settings
import copy





def home (request):

    ls=''
    ls1=''
    ls3=''
    liczba= request.POST.get("li200")
    liczba1=request.POST.get("li100")
    liczba3=request.POST.get("li50")
    datebeg=request.POST.get("datebeg")
    dateend = request.POST.get("dateend")
    nom200 = liczba
    nom100 = liczba1
    nom50 = liczba3
    if datebeg=='':
        datebeg='1000-10-10'
    if dateend=='':
        dateend='1000-10-10'

    nom.objects.update(
        nom200=nom200,
        nom100=nom100,
        nom50=nom50,
        datebeg=datebeg,
        dateend=dateend
    )

    if liczba and liczba.isdigit():
        liczba=int(liczba)*200
        ls=slownie.slownie(int(liczba))
    if liczba1 and liczba1.isdigit():
        liczba1=int(liczba1)*100
        ls1=slownie.slownie(int(liczba1))
    if liczba3 and liczba3.isdigit():
        liczba3=int(liczba3)*50
        ls3=slownie.slownie(int(liczba3))
    suma=0
    if liczba1 and liczba and liczba3  :
        suma=int(liczba)+int(liczba1)+int(liczba3)



    return render(request, 'home.html',{'liczba':liczba,'liczba1':liczba1,'liczba3':liczba3,
                                        'suma':suma,
                                        'ls':ls,
                                        'ls1':ls1,
                                        'ls3':ls3})

models

from django.db import models
from datetime import date
from django.utils.timezone import now

class nom (models.Model):
    nom200 = models.CharField(max_length=200,null=True, blank=True)
    nom100 = models.CharField(max_length=200,null=True, blank=True)
    nom50 = models.CharField(max_length=200,null=True, blank=True)
    datebeg=models.DateField(null=True,blank=True, auto_now_add=True)
    dateend=models.DateField(null=True,blank=True, auto_now_add=True)
    def __str__(self):
        return self.nom200

Answer 1

等待大神解答