Am working on school database, when I'm trying to submit my django form using pure html form, it throws me an error like this: ValueError at /primary Cannot assign "'1'": "Primary.album" must be a "PrimaryAlbum" instance. How can i solve this error please?
Am using this method for the first time:
class PrimaryCreativeView(LoginRequiredMixin, CreateView):
model = Primary
fields = ['profilePicture', 'firstName', 'sureName',
'gender', 'address', 'classOf', 'album',
'hobbies', 'dateOfBirth','year',
'name', 'contact', 'homeAddress',
'emails', 'nationality','occupations',
'officeAddress', 'state', 'localGovernments',
'relationship' ]
template_name = 'post_student_primary.html'
success_url = reverse_lazy('home')
def form_valid(self, form):
form.instance.user = self.request.user
return super (PrimaryCreativeView, self).form_valid(form)
so I changed it to this method down below, but I don't know why it throws me this error:ValueError at /primary Cannot assign "'1'": "Primary.album" must be a "PrimaryAlbum" instance. when I submitted the form. How can I solve? And why this error is shown?
my Views:
def primary_submit_form(request):
albums = PrimaryAlbum.objects.filter(user=request.user)
if request.method == 'POST':
addmisssion_number = request.POST.get('addmisssion_number')
profile_picture = request.POST.get('profile_picture', None)
first_name = request.POST.get('first_name')
sure_name = request.POST['sure_name']
gender = request.POST['gender']
address_of_student = request.POST['address_of_student']
class_Of_student = request.POST['class_Of_student']
album = request.POST['album']
date_of_birth = request.POST['date_of_birth']
nationality_of_student = request.POST['nationality_of_student']
state_of_student = request.POST['state_of_student']
local_government_of_student = request.POST['local_government_of_student']
certificate_of_birth_photo = request.FILES.get('certificate_of_birth_photo')
residential_certificate_photo = request.FILES.get('residential_certificate_photo')
name = request.POST['name']
contact = request.POST['contact']
address_2 = request.POST['address_2']
nationality_2 = request.POST['nationality_2']
occupations = request.POST['occupations']
work_address = request.POST['work_address']
state_2 = request.POST['state_2']
local_government_2 = request.POST['local_government_2']
relationship = request.POST['relationship']
student_create = Primary.objects.create(
addmisssion_number=addmisssion_number, profile_picture=profile_picture,
first_name=first_name, sure_name=sure_name, gender=gender, address_of_student=address_of_student,
class_Of_student=class_Of_student, album=album, date_of_birth=date_of_birth,
nationality_of_student=nationality_of_student, state_of_student=state_of_student, local_government_of_student=local_government_of_student,
certificate_of_birth_photo=certificate_of_birth_photo, residential_certificate_photo=residential_certificate_photo,
name=name, contact=contact, address_2=address_2, nationality_2=nationality_2, occupations=occupations, work_address=work_address,
state_2=state_2, local_government_2=local_government_2, relationship=relationship
)
student_create.save()
return redirect('Primary-Albums')
return render(request, 'create_primary_student_information.html', {'albums':albums})
my models:
class PrimaryAlbum(models.Model):
name = models.CharField(max_length=100)
user = models.ForeignKey(User,
on_delete=models.CASCADE)
def __str__(self):
return self.name
class Primary(models.Model):
addminssion_number = models.CharField(max_length=40)
profilePicture = models.FileField(upload_to='image')
first_name = models.CharField(max_length=40)
sure_name = models.CharField(max_length=40)
gender = models.CharField(max_length=25)
address_of_student = models.CharField(max_length=50)
class_Of_student = models.CharField(max_length=20)
date_of_birth = models.CharField(max_length=20)
album = models.ForeignKey(PrimaryAlbum, on_delete=models.CASCADE)
hobbies = models.TextField(blank=True, null=True)
nationality_of_student = models.CharField(max_length=50)
state_of_student = models.CharField(max_length=30)
local_government_of_student = models.CharField(max_length=50)
certificate_of_birth_photo = models.FileField(upload_to='image')
residential_certificate_photo = models.FileField(upload_to='image')
#Guadians
name = models.CharField(max_length=30)
contact = models.CharField(max_length=15)
address_2 = models.CharField(max_length=50)
nationality_2 = models.CharField(max_length=50)
occupations = models.CharField(max_length=50)
work_address = models.CharField(max_length=50)
state = models.CharField(max_length=30)
local_government = models.CharField(max_length=50)
relationship = models.CharField(max_length=25)
def __str__(self):
return str(self.first_name)
My Templates:
<form action="{% url 'Create-Primary-Student' %}" method="POST">
{% csrf_token %}
<div >
<div >
<div >
{% for message in messages %}
<h5>{{message}}</h5>
{% endfor %}
</div>
<div >
<label for="" >Admission Number</label>
<input type="text" name="addmission_number">
<br>
</div>
<div >
<label for="" >Profile Picture</label>
<input type="file" name="profile_picture">
</div>
<div >
<label for="" >First Name</label>
<input type="text" name="first_name">
</div>
<div >
<label for="" >Sure Name</label>
<input type="text" name="sure_name">
<br>
</div>
<div >
<label for="" > Gender</label>
<input type="text" name="gender">
</div>
<div >
<label for="" >Student Address</label>
<input type="text" name="address_of_student">
</div>
<div >
<label for="" >Student Class</label>
<input type="text" name="class_Of_student">
</div>
<div >
<label for="" >Student Date Of Birth</label>
<input type="date" name="date_of_birth">
</div>
<div >
<label for="" >Year Of Graduation</label>
<select aria-label="Default select example" name="album">
<option selected>Select Year Of Graduation</option>
{% for album in albums %}
<option value="{{ album.id }}">{{ album.name }}</option>
{% endfor %}
</select>
<br>
</div>
<div >
<label >Example textarea</label>
<textarea rows="3" name="hobbies"></textarea>
<br>
</div>
<div >
<br>
<label >Student Country</label>
<input type="text" name="nationality_of_student">
</div>
<div >
<br>
<label for="" >State Of Origin</label>
<input type="text" name="state_of_student">
</div>
<div >
<label for="" >Student Local Government</label>
<input type="text" name="local_government_of_student">
<br>
</div>
<div >
<label for="" >Student Certificate of Birth Photo</label>
<input type="file" name="certificate_of_birth_photo">
</div>
<div >
<label for="" >Student Indigen Photo</label>
<input type="file" name="residential_certificate_photo">
</div>
<div >
<br>
<h2>Guidance Information</h2>
<br>
</div>
<div >
<label for="" >Full Name</label>
<input type="text" name="name">
</div>
<div >
<label for="" >Phone Number</label>
<input type="text" name="contact">
</div>
<div >
<label for="" >Home Address</label>
<input type="text" name="address_2">
</div>
<div >
<label for="" >Country</label>
<input type="text" name="nationality_2">
</div>
<div >
<label for="" >Occupation</label>
<input type="text" name="occupations">
</div>
<div >
<label for="" >Work Address</label>
<input type="text" name="work_address">
</div>
<div >
<label for="" >State Of Origin</label>
<input type="text" name="state_2">
</div>
<div >
<label for="" >Local Government</label>
<input type="text" name="local_government_2">
</div>
<div >
<label for="" >Relationship To Student</label>
<input type="text" name="relationship">
</div>
<button type="submit" >create album</button>
</div>
</div>
</form>
CodePudding user response：
You create this by assigning it to album_id, not album
student_create = Primary.objects.create(
addmisssion_number=addmisssion_number,
profile_picture=profile_picture,
first_name=first_name,
sure_name=sure_name,
gender=gender,
address_of_student=address_of_student,
class_Of_student=class_Of_student,
album_id=album,
date_of_birth=date_of_birth,
nationality_of_student=nationality_of_student,
state_of_student=state_of_student,
local_government_of_student=local_government_of_student,
certificate_of_birth_photo=certificate_of_birth_photo,
residential_certificate_photo=residential_certificate_photo,
name=name,
contact=contact,
address_2=address_2,
nationality_2=nationality_2,
occupations=occupations,
work_address=work_address,
state_2=state_2,
local_government_2=local_government_2,
relationship=relationship,
)I would however strongly advise to use a ModelForm [Django-doc] this will remove a lot of boilerplate code from the view, do proper validation, and create the object effectively.