В настоящее время изучаю джанго. Я пытаюсь добавить жанровые иконки для моего существующего поиска, которые получают только заголовок. но я удивляюсь, почему я получаю сообщение об ошибке в соответствующем поле: неверный поиск: icontains
это мой поисковый код в views.py
def Search(request):
queryset = Book.objects.all()
query = request.GET.get('q')
if query:
queryset = queryset.filter(
Q(title__icontains=query) |
Q(genre__icontains=query)
).distinct()
context = {
'queryset': queryset
}
return render(request, 'search_results.html', context)
вот моя книжная модель.
class Book(models.Model):
title = models.CharField(max_length=200)
```some fields```
genre = models.ManyToManyField(Genre, help_text="Select a genre for this book")
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse('book-detail', kwargs={'slug': self.slug})
вот мои модели жанра
class Genre(models.Model):
name = models.CharField(
max_length=200,
help_text="Enter a book genre (e.g. Science Fiction, French Poetry etc.)"
)
featured = models.BooleanField(null=True, default=False)
def __str__(self):
return self.name
Traceback:
File "C:\Users\admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\handlers\exception.py" in inner 34. response = get_response(request)
File "C:\Users\admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\handlers\base.py" in _get_response 126. response = self.process_exception_by_middleware(e, request)
File "C:\Users\admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\handlers\base.py" in _get_response 124. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\admin\thesis\blackink_website\catalog\views.py" in Search 73. Q(genre__icontains=query)
File "C:\Users\admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\query.py" in filter 844. return self._filter_or_exclude(False, *args, **kwargs)
File "C:\Users\admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\query.py" in _filter_or_exclude 862. clone.query.add_q(Q(*args, **kwargs))
File "C:\Users\admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\sql\query.py" in add_q 1263. clause, _ = self._add_q(q_object, self.used_aliases)
File "C:\Users\admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\sql\query.py" in _add_q 1281. current_negated, allow_joins, split_subq)
File "C:\Users\admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\sql\query.py" in _add_q 1287. split_subq=split_subq,
File "C:\Users\admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\sql\query.py" in build_filter 1225. condition = self.build_lookup(lookups, col, value)
File "C:\Users\admin\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\sql\query.py" in build_lookup 1087. raise FieldError('Related Field got invalid lookup: {}'.format(lookup_name))
Exception Type: FieldError at /search/ Exception Value: Related Field got invalid lookup: icontains