form.is_valid() 未按预期工作 django

Question

I am neew to django and I am trying to make an attendance system where the user can type their name and press clock in or clock out but when I test the code. But whenever I type a name and press clock In it does not save the name and time to the database.

views.py:

def home(response):
    form = CreateNewList()
    empName = employeeName.objects.all
    if response.method == "POST":
        form = CreateNewList(response.POST) 
        if 'clockIn' in response.POST:
            if form.is_valid():
                n = form.cleaned_data["name"]
                now = datetime.now()
                current_time = now.strftime("%H:%M:%S")
                t = Name(name = n, timeIn=current_time)
                t.save()
                return redirect('/')
    else: 
        form = CreateNewList()        
    return render(response, "main/home.html", context={"form":form, "empName":empName})

models.py:

class employeeName(models.Model):
    employee = models.CharField(max_length=200)
    total_Hours_Worked = models.CharField(max_length=8, default="Empty")

    def __str__(self):
        return self.employee
    
class Name(models.Model):
    name = models.ForeignKey(employeeName, null=True,on_delete=models.CASCADE)
    timeIn = models.TimeField()
    timeOut = models.TimeField(default=datetime.now())
    date = models.DateField(auto_now=True)

    def __str__(self):
        return str(self.name)  

forms.py:

class CreateNewList(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        super(CreateNewList, self).__init__(*args, **kwargs)

        self.fields['name'].widget = TextInput()
    
    class Meta:
        model = Name
        fields = ['name']

home.html:

<form method="post">
    {% csrf_token %}
    <div class="input-group mb-2">
        <div class="input-group-prepend">
            <h3 class="p2" >Clock In/Clock Out</h3>
            <label>Enter Your Full Name:</label>
            {{form.name}}
            <datalist id="attendance">
                {% for empName in empName %}
                    <option value="{{empName.employee}}">
                {% endfor %}
            </datalist>
            <button type="submit" name="clockIn" value="clockIn" class="btn btn-outline-primary">Clock In</button>
            <button type="submit" name="clockOut" value="clockOut" class="btn btn-outline-primary">Clock Out</button>
        </div>
    </div>
</form>

I tried testing whenever I press the clockIn button to print something in the terminal and nothing ever printed. I don't get what is wrong with my code

Answer 1

The problem you have is that name in the Name model is a foreign key to the employeeName model. In your form you have changed the widget for the name field to a TextInput . Django is expecting a employeeName object, not a string, when creating Name objects. You should just keep the widget as the default model select, so users will select their name instead of typing it. Otherwise you will have to implement search functionality which becomes more complicated. What if a user spells his name wrong? How to you inform a user of this? How do they confirm that the employeeName object is correct?