CODEWITHSUNDEEP
pythondjangodjango-modelsdjango-viewsdjango-forms
Toufiqur Rahman
Toufiqur Rahman

Reputation: 212

Show item details together with item name in forms dropdown

currently I'm trying to show part quantity (quan) together with part name in the dropdown. I have a Part table that carries the part name and part quantity and this table called as ForeignKey into the Order table. So, in the Order form during choose the part name from the part dropdown, I would like to show part quantity as well besides the part name. Any idea to make it like that?

models.py

class Part(models.Model):
    partno = models.CharField(max_length=50)
    partname = models.CharField(max_length=50)
    quan = models.PositiveIntegerField(default= 0)

    def __str__(self):
       return '{}, quantity - {}'.format(self.partname, self.quan)

class Order(models.Model):
    supplier = models.ForeignKey(Supplier, on_delete=models.CASCADE)
    product = models.ForeignKey(Product, on_delete=models.CASCADE)
    part = models.ForeignKey(Part, on_delete=models.CASCADE)

views.py

def create_order(request):
    from django import forms
    form = OrderForm()

    if request.method == 'POST':
        for form_data in forms_data:
            forms = OrderForm(request.POST)
            if forms.is_valid():
                supplier = forms.cleaned_data['supplier']
                product = forms.cleaned_data['product']
                part = forms.cleaned_data['part']
 
                order = Order.objects.create(
                    supplier=supplier,
                    product=product,
                    part=part,
                )

        return redirect('order-list')
    context = {
        'form': form
    }
    return render(request, 'store/addOrder.html', context)

HTML

<form action="#" method="post" id="form-container" novalidate="novalidate">
   {% csrf_token %}

     <div class="form-group">
        <label for="product" class="control-label mb-1">Product</label>
        {{ form.product }}
     </div>

     <div class="form-group">
        <label for="supplier" class="control-label mb-1">Supplier</label>
        {{ form.supplier }}
     </div>
                                        
     <div class="form-group">
        <label for="part" class="control-label mb-1">Part Name</label>
        {{ form.part }}
     </div>
</form>

Upvotes: 0

Views: 58

Answers (1)

Nikoloz Naskidashvili
Nikoloz Naskidashvili

Reputation: 138

You will have to write "__ str __"(without spaces between str and __) method for model 'Part'

def __str__(self):
    return '{}, quantity - {}'.format(self.partname, self.quan)

Check this post also: What is doing __str__ function in Django?

Upvotes: 1

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