在 Django view.py 中设置 ForeignKey

Question

def clientinfo(request):
    clientForm = ClientInfoForm(prefix="client")
    criminalForm = OCCForm(prefix="criminal")

    if request.method == 'POST':
        clientForm = ClientInfoForm(request.POST,prefix="client")
        criminalForm = OCCForm(request.POST,prefix="criminal")

        criminalForm['cust_id_id'] = clientForm['id']
        
        if clientForm.is_valid() or criminalForm.is_valid():
            clientForm.save()
            criminalForm.save()
            print("SUCCESSFUL SUBMISSION")
            return render(request, 'submitted.html')

    return render(request, 'clientinfo.html',
                  {'form': clientForm, 'occform': OCCForm})

My criminalForm has a ForeignKey field cust_id and i need to set it to the auto-generated Primary key of clientForm

I can't figure out the correct way to do this? They both have an associated model ClientInfo and OCC if I need to use them somehow to accomplish this?

Models and Forms: models.py

from django.db import models
from django.forms import ModelForm, Select, TextInput, EmailInput, DateInput, NumberInput, CheckboxInput, ChoiceField

class ClientInfo(models.Model):
    SALUTATIONS = (
        (
            ('Miss', 'Miss'),
            ('Mr.', 'Mr.'),
            ('Mrs.', 'Mrs.'),
            ('Ms.', 'Ms.'),
            ('Dr', 'Dr'),
            ('Rev', 'Rev')
        )
    )
    RACE = (
        (
            ('A', 'Asian'),
            ('B', 'Black'),
            ('H', 'Hispanic/Latino'),
            ('N', 'Native American'),
            ('W', 'White')
        )
    )
    GENDER = (
        (
            ('F', 'Female'),
            ('M', 'Male')
        )
    )
    STATE = (
        (
            ('AK', 'Alaska'),
            ('AL', 'Alabama'),
            ('AR', 'Arkansas'),
            ('AZ', 'Arizona'),
            ('CA', 'California'),
            ('CO', 'Colorado'),
            ('CT', 'Connecticut'),
            ('DC', 'District of Columbia'),
            ('DE', 'Delaware'),
            ('FL', 'Florida'),
            ('GA', 'Georgia'),
            ('HI', 'Hawaii'),
            ('IA', 'Iowa'),
            ('ID', 'Idaho'),
            ('IL', 'Illinois'),
            ('IN', 'Indiana'),
            ('KS', 'Kansas'),
            ('KY', 'Kentucky'),
            ('LA', 'Louisiana'),
            ('MA', 'Massachusetts'),
            ('MD', 'Maryland'),
            ('ME', 'Maine'),
            ('MI', 'Michigan'),
            ('MN', 'Minnesota'),
            ('MO', 'Missouri'),
            ('MS', 'Mississippi'),
            ('MT', 'Montana'),
            ('NC', 'North Carolina'),
            ('ND', 'North Dakota'),
            ('NE', 'Nebraska'),
            ('NH', 'New Hampshire'),
            ('NJ', 'New Jersey'),
            ('NM', 'New Mexico'),
            ('NV', 'Nevada'),
            ('NY', 'New York'),
            ('OH', 'Ohio'),
            ('OK', 'Oklahoma'),
            ('OR', 'Oregon'),
            ('PA', 'Pennsylvania'),
            ('PR', 'Puerto Rico'),
            ('RI', 'Rhode Island'),
            ('SC', 'South Carolina'),
            ('SD', 'South Dakota'),
            ('TN', 'Tennessee'),
            ('TX', 'Texas'),
            ('UT', 'Utah'),
            ('VA', 'Virginia'),
            ('VT', 'Vermont'),
            ('WA', 'Washington'),
            ('WI', 'Wisconsin'),
            ('WV', 'West Virginia'),
            ('WY', 'Wyoming'),
        )
    )
    salutation = models.CharField(max_length=5, choices=SALUTATIONS, default='Miss.')
    last_name = models.CharField(max_length=20)
    first_name = models.CharField(max_length=20)
    address = models.CharField(max_length=125)
    city = models.CharField(max_length=15)
    state = models.CharField(max_length=2, choices=STATE)
    zip = models.CharField(max_length=5)
    phone = models.CharField(max_length=15)
    dob = models.DateField()
    age = models.IntegerField()
    employer = models.CharField(max_length=21)
    work_phone = models.CharField(max_length=15)
    workphext = models.CharField(max_length=5)
    mobile = models.CharField(max_length=15)
    ss_no = models.CharField(max_length=11)
    dl = models.CharField(max_length=12)
    race = models.CharField(max_length=1, choices=RACE)
    sex = models.CharField(max_length=1, choices=GENDER)
    email = models.EmailField(max_length=100)
    opt_out = models.BooleanField(default=False)
    refby_name = models.CharField(max_length=40)

# Adding model from database to forms and styling them with bootstrap
class ClientInfoForm(ModelForm):
    case_type = ChoiceField(choices=(('criminal','Criminal'),('domestic','Domestic')), widget=Select(attrs={'class':'form-control', 'id':'case_type'}))

    class Meta:
        model = ClientInfo

        widgets = {
            'salutation': Select(attrs={'class':'form-control col-sm-2'}),
            'first_name': TextInput(attrs={'class': 'form-control', 'placeholder': 'First Name*'}),
            'last_name': TextInput(attrs={'class': 'form-control', 'placeholder': 'Last Name*'}),
            'phone': TextInput(attrs={'class': 'form-control', 'placeholder': 'Phone Number*', 'data-inputmask': "'mask':'(999) 999-9999'", 'data-inputmask-clearincomplete': 'true'}),
            'email': EmailInput(attrs={'class': 'form-control', 'placeholder': 'Email Address*'}),
            'dob': DateInput(attrs={'type': 'date', 'class': 'form-control', 'aria-describedby':'input_dob_label'}),
            'race': Select(attrs={'class': 'form-control', 'aria-describedby': 'input_race_label'}),
            'sex': Select(attrs={'class': 'form-control', 'aria-describedby': 'input_sex_label'}),
            'address': TextInput(attrs={'class': 'form-control', 'placeholder': 'Address*'}),
            'city': TextInput(attrs={'class': 'form-control', 'placeholder': 'City*'}),
            'state': Select(attrs={'class':'form-control', 'aria-describedby':'input_state_label',}),
            'zip': TextInput(attrs={'class': 'form-control', 'placeholder': 'Zip*',
                                      'data-inputmask': "'mask':'99999'",
                                      'data-inputmask-clearincomplete': 'true'}),
            'age': NumberInput(attrs={'class': 'form-control','placeholder':'Age*'}),
            'employer': TextInput(attrs={'class': 'form-control', 'placeholder': 'Employed By*'}),
            'work_phone': TextInput(attrs={'class': 'form-control col-sm-9', 'placeholder': 'Work Number', 'data-inputmask': "'mask':'(999) 999-9999'", 'data-inputmask-clearincomplete': 'true'}),
            'workphext': TextInput(attrs={'class': 'form-control col-sm-3', 'placeholder': 'Ext', 'maxlength': "6",}),
            'mobile': TextInput(attrs={'class': 'form-control', 'placeholder': 'Mobile Number', 'data-inputmask': "'mask':'(999) 999-9999'", 'data-inputmask-clearincomplete': 'true'}),
            'opt_out': CheckboxInput(attrs={'class': 'custom-control-input'}),
            'refby_name': TextInput(attrs={'class': 'form-control', 'placeholder': 'Referred By'}),

        }

        # Dynamically Create Form Fields based on widget details
        fields = []
        for widget in widgets:
            fields.append(widget)
        fields = tuple(fields)

class OCC(models.Model):
    cust_id = models.ForeignKey(ClientInfo,on_delete=models.CASCADE)
    charge = models.CharField(max_length=10)
    court_date = models.DateField()

class OCCForm(ModelForm):
    class Meta:
        model = OCC

        widgets = {
            'charge': TextInput(attrs={'class':'form-control'}),
            'court_date': DateInput(attrs={'type': 'date', 'class': 'form-control'})
        }

        # Dynamically Create Form Fields based on widget details
        fields = []
        for widget in widgets:
            fields.append(widget)
        fields = tuple(fields)

EDIT

I'm now getting "FORM NOT VALID" in my console when running the code below:

def clientinfo(request):
    clientForm = ClientInfoForm(prefix="client")
    criminalForm = OCCForm(prefix="criminal")

    if request.method == 'POST':
        clientForm = ClientInfoForm(request.POST,prefix="client")
        criminalForm = OCCForm(request.POST,prefix="criminal")
        if clientForm.is_valid() and criminalForm.is_valid():
            client = clientForm.save()
            criminalForm.instance.cust_id = client
            criminalForm.save()
            return redirect('submitted.html')
        else:
            print("FORM NOT VALID")

Here's the structure of the OCC table in the database

Answer 1

You should check if both forms are valid, and after saving the clientForm , you can set the .cust_id of the .instance wraooed in the criminalForm :

from django.shorcuts import redirect

def clientinfo(request):
    clientForm = ClientInfoForm(prefix='client')
    criminalForm = OCCForm(prefix='criminal')
    if request.method == 'POST':
        clientForm = ClientInfoForm(request.POST, prefix='client')
        criminalForm = OCCForm(request.POST, prefix='criminal')
        if clientForm.is_valid()  criminalForm.is_valid():
            client = clientForm.save()
            criminalForm
            criminalForm.save()
            return 

    return render(
        request,
        'clientinfo.html',
        {'form': clientForm, 'occform': OCCForm}
    )

---

Note : In case of a successful POST request, you should make a redirect [Django-doc] to implement the Post/Redirect/Get pattern [wiki] . This avoids that you make the same POST request when the user refreshes the browser.

---

Note : Normally one does not add a suffix _id to a ForeignKey field, since Django will automatically add a "twin" field with an _id suffix. Therefore it should be cust , instead of cust_id .