我正在使用django创建搜索表单,它将根据搜索值呈现结果。除一个字段外,所有字段都工作正常。
HTML代码
<form action="{% url 'search' %}">
<label">State</label>
<select name="state">
<option selected="true" disabled="disabled">State (All)</option>
{% for k,v in state_choices.items %}
<option value="{{k}}">{{v}}</option>
{% endfor %}
</select>
<label>Bedrooms</label>
<select name="bedrooms">
<option selected="true" disabled="disabled">Bedrooms (Any)</option>
{% for k,v in bedroom_choices.items %}
<option value="{{k}}">{{v}}</option>
{% endfor %}
</select>
<button type="submit">Submit form</button>
</form>
Django代码
def search(request):
result = Listing.objects.order_by('-list_date')
# state
if 'state' in request.GET:
state = request.GET['state']
if state:
result = result.filter(state = state)
# bedrooms
if 'bedrooms' in request.GET:
bedrooms = request.GET['bedrooms']
if bedrooms:
result = result.filter(bedrooms_lte = bedrooms)
context = {
'state_choices': state_choices,
'bedroom_choices': bedroom_choices,
'listings': result
}
return render(request, 'listings/search.html', context)
bedrooms
正在产生问题。下面是错误越来越:
Environment:
Request Method: GET
Request URL: http://localhost:8000/listings/search?keywords=&city=&bedrooms=2&price=1000000
Django Version: 3.0.1
Python Version: 3.6.9
Installed Applications:
['pages.apps.PagesConfig',
'listings.apps.ListingsConfig',
'realtors.apps.RealtorsConfig',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.humanize']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback (most recent call last):
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/venv/lib/python3.6/site-packages/django/core/handlers/exception.py", line 34, in inner
response = get_response(request)
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/venv/lib/python3.6/site-packages/django/core/handlers/base.py", line 115, in _get_response
response = self.process_exception_by_middleware(e, request)
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/venv/lib/python3.6/site-packages/django/core/handlers/base.py", line 113, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/listings/views.py", line 44, in search
result = result.filter(bedrooms_lte = bedrooms)
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/venv/lib/python3.6/site-packages/django/db/models/query.py", line 904, in filter
return self._filter_or_exclude(False, *args, **kwargs)
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/venv/lib/python3.6/site-packages/django/db/models/query.py", line 923, in _filter_or_exclude
clone.query.add_q(Q(*args, **kwargs))
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/venv/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1340, in add_q
clause, _ = self._add_q(q_object, self.used_aliases)
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/venv/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1371, in _add_q
check_filterable=check_filterable,
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/venv/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1240, in build_filter
lookups, parts, reffed_expression = self.solve_lookup_type(arg)
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/venv/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1077, in solve_lookup_type
_, field, _, lookup_parts = self.names_to_path(lookup_splitted, self.get_meta())
File "/home/barefaced/Desktop/ubuntu/mini projects/django/practice/venv/lib/python3.6/site-packages/django/db/models/sql/query.py", line 1473, in names_to_path
"Choices are: %s" % (name, ", ".join(available)))
Exception Type: FieldError at /listings/search
Exception Value: Cannot resolve keyword 'bedrooms_lte' into field. Choices are: address, bathrooms, bedrooms, city, description, garage, id, is_published, list_date, lot_size, photo_1, photo_2, photo_3, photo_4, photo_5, photo_6, photo_main, price, realtor, realtor_id, sqft, state, title, zipcode
请帮助我解决问题。我是Django的新手。
我相信您需要在卧室和lte之间添加另一个下划线。
result.filter(bedrooms__lte=bedrooms)