Pourquoi est-ce que mon formulaire.is_valid() retourne toujours false?

Question

Donc le problème est que lorsque j'appelle les deux méthodes authorSearch et deleteAuthor dans views.py, form, is_valid() retourne toujours false.

models.py

class Author(models.Model): 
    author_name = models.CharField(max_length=200,primary_key=True) 
    def __str__(self): 
      return self.author_name 

Forms.py

class AuthorForm(forms.ModelForm): 
    class Meta: 
      model = Author 
      fields = ['author_name',] 

views.py

def authorSearch(request): 
    if request.method=='POST': 
      form = AuthorForm(request.POST) 
      if form.is_valid(): 
        #some processing here 
        return render(request,'authorSearch.html',{}) 
      else: 
        return HttpResponse('No such Author Found!') 
    else: 
      form = AuthorForm() 
      return render(request,'authorSearch.html',{'form':form}) 

def deleteAuthor(request): 
    if request.method=='POST': 
      form=AuthorForm(request.POST) 
      if form.is_valid(): 
        #some processing here 
        return HttpResponse('Author deleted successfully!') 
      else: 
        return HttpResponse('Author deletetion failed!') 
    else: 
      form=AuthorForm() 
      return render(request,'deleteAuthor.html',{'form':form}) 

authorSearch.html

<div class='container'> 
{% if request.method == 'GET' %} 
    <form action='' method='POST'> 
      <!--Some html here --> 
    </form> 
{% elif request.method == 'POST' %} 
    <!--Some html here --> 
{% endif %} 

Answer 1

Une conjecture sauvage: vous avez oublié le jeton csrf.

Imprimez simplement les données réelles envoyées au formulaire et les erreurs pour voir ce qui se passe!

def authorSearch(request): 
    if request.method=='POST': 
     form = AuthorForm(request.POST) 
     if form.is_valid(): 
       #some processing here 
      return render(request,'authorSearch.html',{}) 
     else: 
      # you want to check what's happening here 
      # something like this (from memory, might be wrong): 
      print request.POST 
      print form.errors 
      print form.non_field_errors 

      return HttpResponse('No such Author Found!') 
    else: 
     form = AuthorForm() 
     return render(request,'authorSearch.html',{'form':form}) 

---

De plus, je vous recommande personnellement:

• utilisation Charles ou quelque chose de similaire pour vérifier les demandes et les réponses HTTP
• des tests d'écriture :)