我一直在研究我最初在Django 1.7中启动的应用程序，然后将其移植到1.10，它停止工作。如果我选择一个区域来搜索，但只能由区域搜索，它将起作用。我希望的是，如果所有搜索词都留空，它将返回该池中的所有对象。如果有人对这出错的地方有一些想法会很好，因为它不会给我错误，只是告诉我没有结果。
型号：
class PlantingSite(models.Model):
id_planting_site = models.IntegerField(null=True, blank=True)
empty = models.BooleanField(default=False)
address = models.CharField(max_length=256, null=True, blank=True)
street = models.CharField(max_length=256, null=True, blank=True)
coord_lat = models.CharField(max_length=256, null=True, blank=True)
coord_long = models.CharField(max_length=256, null=True, blank=True)
zipcode = models.CharField(max_length=256, null=True, blank=True)
neighborhood = models.ForeignKey(Neighborhood, null=True)
district = models.ForeignKey(District, null=True)
property_address = models.CharField(max_length=256, null=True, blank=True)
property_street = models.CharField(max_length=256, null=True, blank=True)
property_zipcode = models.CharField(max_length=256, null=True, blank=True)
property_owner = models.ForeignKey(Contact, related_name='planting_sites_owned_by_contact', null=True)
contact = models.ForeignKey(Contact, related_name='planting_sites_cared_for_by_contact', null=True)
notes = models.TextField(null=True, blank=True)
basin_type = models.ForeignKey(BasinType, related_name='planting_sites_with_basin_type', null=True)
overhead_utility = models.ManyToManyField(OverheadUtility, related_name='planting_sites_with_overhead_utility', blank=True)
hardscape_damage = models.ManyToManyField(HardscapeDamage, related_name='planting_sites_with_hardscape_damage', blank=True)
aspect = models.ForeignKey(Aspect, null=True)
sequence = models.IntegerField(null=True, blank=True)
side = models.CharField(max_length=256, null=True, blank=True)
size = models.CharField(max_length=256, null=True, blank=True)
created_by = models.ForeignKey(User, related_name='planting_sites_created', null=True)
created_at = models.DateTimeField(default=timezone.now)
last_edited = models.DateTimeField(null=True, blank=True)
def __unicode__(self):
return unicode(self.id_planting_site)
class Meta:
ordering = ['-created_at']
我的观点：
def uf_search(request):
if request.POST:
search_sent = True
# SEARCH PLANTING SITES
if request.POST.get('search_type_id') == "1":
planting_site_search = True
if request.POST.get('address_range'):
if request.POST.get('address_start') and request.POST.get('address_end'):
address_start = request.POST.get('address_start')
address_end = request.POST.get('address_end')
r_address = Q(address__range=[address_start, address_end])
else:
r_address = Q(address__isnull=False) | Q(address__isnull=True)
elif request.POST.get('address_exact'):
if request.POST.get('address'):
address = request.POST.get('address')
r_address = Q(address__icontains=address)
else:
r_address = Q(address__isnull=False) | Q(address__isnull=True)
planting_site_fields = {
'street': request.POST.get('street'),
'zipcode': request.POST.get('zipcode'),
}
r_objects = Q()
if request.POST.get('neighborhood_id'):
r_neighborhood = Q(neighborhood__id_neighborhood=request.POST.get('neighborhood_id'))
else:
r_neighborhood = Q(neighborhood__id_neighborhood__isnull=False) | Q(neighborhood__id_neighborhood__isnull=True)
if request.POST.get('district_id'):
r_district = Q(district__id_district=request.POST.get('district_id'))
else:
r_district = Q(district__id_district=False) | Q(district__id_district=True)
for field, value in planting_site_fields.iteritems():
if value:
r_objects = Q(**{field+'__icontains': value})
if request.POST.get('empty_planting_sites'):
search_results = PlantingSite.objects.values('id', 'id_planting_site', 'address', 'street', 'zipcode', 'neighborhood__name', 'district__name', 'empty').filter(r_address, r_objects, r_neighborhood, r_district, empty=True)
else:
search_results = PlantingSite.objects.values('id', 'id_planting_site', 'address', 'street', 'zipcode', 'neighborhood__name', 'district__name', 'empty').filter(r_address, r_objects, r_neighborhood, r_district)
request.session['search_results'] = list(search_results)
neighborhood_list = Neighborhood.objects.all()
district_list = District.objects.all()
species_list = Species.objects.all()
condition_list = TreeCondition.objects.all()
args = {'search_sent': search_sent, 'planting_site_search': planting_site_search, 'search_results': search_results, 'neighborhood_list': neighborhood_list,
'district_list': district_list, 'species_list': species_list, 'condition_list': condition_list}
args.update(csrf(request))
return render(request, 'uf_search.html', args)
模板：
<form action="/forest/search/" method="post">
{% csrf_token %}
<input type="hidden" name="search_type_id" id="search_type_id" value="1">
<p>
<div class="row">
<div class="col-sm-4">
Address:
</div>
<div class="col-sm-4">
Exact: <input type="checkbox" name="address_exact" id="address_exact" />
</div>
<div class="col-sm-4">
Range: <input type="checkbox" name="address_range" id="address_range" />
</div>
</div>
</p>
<p>
<div class="row">
<div class="col-sm-4">
Range:
</div>
<div class="col-sm-8">
<input type="text" id="address_start" name="address_start" /> to <input type="text" id="address_end" name="address_end" />
</div>
</div>
</p>
<p>
<div class="row">
<div class="col-sm-4">
Exact:
</div>
<div class="col-sm-8">
<input type="text" id="address" name="address" />
</div>
</div>
</p>
<p>
<div class="row">
<div class="col-sm-4">
Street:
</div>
<div class="col-sm-8">
<input type="text" id="street" name="street" />
</div>
</div>
</p>
<p>
<div class="row">
<div class="col-sm-4">
Zipcode:
</div>
<div class="col-sm-8">
<input type="text" id="zipcode" name="zipcode" />
</div>
</div>
</p>
<p>
<div class="row">
<div class="col-sm-4">
Neighborhood:
</div>
<div class="col-sm-8">
<select name="neighborhood_id" id="neighborhood_id">
<option value="">Select:</option>
{% for neighborhood in neighborhood_list %}
<option value="{{neighborhood.id_neighborhood}}">{{neighborhood.name}}</option>
{% endfor %}
</select>
</div>
</div>
</p>
<p>
<div class="row">
<div class="col-sm-4">
District:
</div>
<div class="col-sm-8">
<select name="district_id" id="district_id">
<option value="">Select:</option>
{% for district in district_list %}
<option value="{{district.id_district}}">{{district.name}}</option>
{% endfor %}
</select>
</div>
</div>
</p>
<p>
<div class="row">
<div class="col-sm-4">
</div>
<div class="col-sm-8">
<input type="checkbox" name="empty_planting_sites" id="empty_planting_sites">
Show Empty Planting Sites Only
</div>
</div>
</p>
<input type="submit" name="submit" id="submit" value="Search" />
</form>
有什么想法吗？它是否在最新版本中被删除了？