[英]Django Q filter foreign key
我正在尝试创建一个搜索,该搜索从两个字段获取输入并使用这两个字段进行搜索。 我知道如何过滤非外键,但尝试过滤外键会出现错误“相关字段查找无效:国家/地区”
我希望作业返回过滤查询和国家/地区的结果。 我怎样才能最好地实现这一目标?
model:
class Job(models.Model):
title = models.CharField(max_length=50)
...
country = models.ForeignKey(
Country,
blank=True,
null=True,
help_text="Select if you're hiring within a specific "
"country",
on_delete=models.PROTECT
)
看法:
def jobs_search(request):
form = SearchForm(request.GET)
if form.is_valid():
cd = form.cleaned_data
jobs = Job.objects.filter(site_id=get_current_site(request).id) \
.filter(paid_at__isnull=False) \
.filter(expired_at__isnull=True) \
.filter(
Q(title__icontains=cd['query'], ) |
Q(description__icontains=cd['query']) & Q(country__country__icontains=cd['country'])
) \
.order_by('-paid_at')
meta_desc = 'Search Results'
title = 'Search Results'
context = {'meta_desc': meta_desc,
'title': title,
'form': form,
'jobs': jobs}
return render(request, 'job_board/jobs_index.html', context)
你可以试试这个
from django.db.models import Q
import operator
jobs = Job.objects.all()
query = reduce(operator.and_, [ Q(author__name__icontains=x) for x in jobs ] )
jobsfilter = jobs.filter( query )
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