You can't compare the `contract.supplier` attribute directly to a string
like 'IBM', because it is a foreign key to a `Supplier` model instance.
Instead, you need to access the related `Supplier` model's attributes to
compare them. For example, if the `Supplier` model has a `name` attribute,
you can use:
{% if contract.supplier.name == 'IBM' %}
Alternatively, you could also use a `filter()` method on your `QuerySet` to
filter the contracts by their supplier name before passing them to the
template.
contracts = Contract.objects.filter(supplier__name='IBM')
Then you don't need to use the if statement in the template.
{% for contract in contracts %}
On Thu, Jan 12, 2023 at 2:52 PM Namanya Daniel <dnamanya.dan...@gmail.com>
wrote:
>
> Replace supplier with related_name
>
> On Thu, 12 Jan 2023 at 16:13, 'dtdave' via Django users <
> django-users@googlegroups.com> wrote:
>
>> I have the following relationship in a model
>>
>> class Contract(models.Model):
>> supplier = models.ForeignKey(
>> Supplier,
>> on_delete=models.CASCADE,
>> verbose_name="Supplier Name",
>> related_name="contract_suppliers",
>> )
>>
>> I am trying to include an if statement in my template but the following
>> does not work:
>> {% if contract.supplier == 'IBM' %}
>>
>> If I replace this with a non-foreign key item then it works fine.
>>
>> Any help would be appreciated.
>>
>>
>>
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