Flexible Django Filter (django-filter package) - django

Question

I'm currently implementing some filters and I'm facing multiple problems. First of all my checkbox works when clicking on the brand title, not the actual:
this is my .html code:
<form method="get">
<div class="toggle-list product-categories">
<h6 class="title">Sorteer</h6>
<div class="shop-submenu">
<ul>
{{ filter.form.order_by }}
</ul>
</div>
</div>
<div class="toggle-list product-categories">
<h6 class="title">Merk(en)</h6>
<div class="shop-submenu">
<ul>
{% for f in filter.form.brand %}
<li>
<input type="checkbox" name="brand" id="brand">
<label for="brand">{{ f }}</label>
</li>
{% endfor %}
</ul>
</div>
</div>
<input type="submit" value="Filter">
</form>
my filter in filters.py:
class SortFilter(django_filters.FilterSet):
ORDER_BY_CHOICES = (
('-discount_sort', 'Hoogste korting'),
('-new_price', 'Hoogste prijs'),
('new_price', 'Laagste prijs'),
)
order_by = django_filters.ChoiceFilter(label='Sorteer op', choices=ORDER_BY_CHOICES, method='filter_by_order',
empty_label=None)
brand = django_filters.ModelMultipleChoiceFilter(queryset=Product.objects
.order_by('brand')
.filter(categorie='eiwitten')
.values_list('brand', flat=True).distinct()
, widget=forms.CheckboxSelectMultiple, required=False)
class Meta:
model = Product
fields = ['brand']
def filter_by_order(self, queryset, name, value):
return queryset.order_by(value)
view function for this certain page:
def eiwit(request):
# filter alleen eiwitproducten
eiwit_list = ['eiwitten']
eiwit_filter = Q()
for item in eiwit_list:
eiwit_filter = eiwit_filter | Q(categorie=item)
products = models.Product.objects.filter(eiwit_filter)
product_amount = len(products)
# sorteer filter
filtered = SortFilter(
request.GET,
queryset=products
)
# paginator
paginator = Paginator(filtered.qs, 12)
page = request.GET.get('page')
try:
response = paginator.page(page)
except PageNotAnInteger:
response = paginator.page(1)
except EmptyPage:
response = paginator.page(paginator.num_pages)
product_front_end = {
'final_products': response,
'filter': filtered,
'count': product_amount,
}
return render(request, 'producten/eiwit.html', product_front_end)
Second of all, I would like the filter to be more generic. As in all categories have different amount of brands. As you can see I currently create options by selecting all the 'brand' values within the 'eiwitten' categorie (in filters.py). Is there a way to call the filter in views.py with a variable (like 'eiwittien'). Which then will be used to adjust the filter in filter.py according to the page it is on? This way I have a dynamic filter for all categories.

Answer 1

This might help with some of your issues. Your input tag is missing information on the name/id fields. You should be able to populate those by adding template tags to fill the values.
<input type="checkbox" id="BSN" name="BSN"> <label for="BSN">BSN</label>