Django-Edit and update the existing data in database with Form

Question

Hello the I need to edit and update the already existing row of data in the database.I guess that their is some problem in views.py. So I am not sure my views.py is right. Please check and tell me if any problem and how to proceed.

Thanks

models.py is :

    class chefequipe(models.Model):
    nom = models.CharField(max_length=200)
    prenom = models.CharField(max_length=200)
    matricule = models.CharField(max_length=200)
    login = models.CharField(max_length=200)
    password = models.CharField(max_length=200)
    statut = models.CharField(max_length=200)
    objects = models.Manager()
     def __str__(self):
        return self.matricule

the forms.py :

    class ChefEquipeRegister(forms.Form):
    nom= forms.CharField(required=True , widget=forms.TextInput)
    prenom=forms.CharField(required=True , widget=forms.TextInput)
    matricule=forms.CharField(required=True , widget=forms.TextInput)
    login=forms.CharField(required=True , widget=forms.TextInput)
    password=forms.CharField(required=True , widget=forms.PasswordInput)
    statut=forms.CharField(required=True , widget=forms.TextInput)

the view.py

    def updatechef(request , id):
    var=models.chefequipe.objects.filter(id=id)
    form_data = forms.ChefEquipeRegister(request.POST or None )

    if form_data.is_valid():



 chefequipe = models.chefequipe()
    chefequipe.nom = form_data.cleaned_data['nom']
    chefequipe.prenom= form_data.cleaned_data['prenom']
    chefequipe.login = form_data.cleaned_data['login']
    chefequipe.password = form_data.cleaned_data['password']
    chefequipe.statut = form_data.cleaned_data['statut']
    chefequipe.matricule = form_data.cleaned_data['matricule']

    chefequipe.save()



context= {
    'var' : var,        
}
    return render(request , 'administrateur/updatechef.html', context  )

the page html

    {% extends 'baseadmin.html' %}

{% block content %}

<form action="" method="post">





    <div class="container">
        <div class="columns is-mobile">
            <div class="column is-half is-offset-one-quarter">

                <form action="" method="post">
                    {%  csrf_token %}

                    {% for var in var %}
                    <div class="content"> <h1>  Modifier Information Chef D'équipe : {{var.prenom }} {{ var.nom }}  </h1></div>
                 <label>Nom</label>  <input id="nom" type="text" name="nom" value="{{ var.nom }}">
                 <label>Prenom</label>  <input id="prenom" type="text" name="prenom" value="{{ var.prenom }}">
                 <label>Matricule</label>  <input id="matricule" type="text" name="matricule" value="{{ var.matricule }}">
                 <label>Statut</label>  <input id="statut" type="text" name="statut" value="{{ var.statut }}">
                 <label>Login</label>  <input id="login" type="text" name="login" value="{{ var.login }}">
                 <label>Password</label>  <input id="password" type="text" name="password" value="{{ var.password }}">
                    {% endfor %}




                        </div>
                    <input type="submit" value="Modifier" class="button is-primary">
                </form>
            </div>
        </div>
    </div>
{% endblock %}

i need to update the data exsting in my database

gcuriqueo · Accepted Answer · 2021-02-08 14:07:48Z

1

In your case:

views.py

.....
.....
.....

if form.is_valid():
    object_chefequipe = chefequipe.objects.get(id=id)
    form = ChefEquipeRegister(request.POST, instance=object_chefequipe)
    form.save()

answered Feb 8, 2021 at 14:07

gcuriqueo

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Comments

Lauren · Accepted Answer · 2019-07-24 14:30:28Z

0

Is there any reason why you are using a Form instead of a ModelForm? ModelForms are used to create or update model instances. Then when you get the request.POST data, you can assign the instance of the model (the database row) that you want to update in the ModelForm.

models.py

class ChefEquipeRegister(forms.ModelForm) ...

views.py

if request.method == POST:
form = ChefEquipeRegister(request.POST, instance=**INSTANCE)

I think that you should make sure your Model has a primary key to access each model instance and then rewrite your Form as a ModelForm. Follow along here: https://docs.djangoproject.com/en/2.2/topics/forms/modelforms/

answered Jul 24, 2019 at 14:30

Lauren

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