谷歌地图在Django项目中显示多个位置
我想在django项目中使用GoogleMap显示多个邮件地址。地址是数据库中的变量 到目前为止,我已经尝试了谷歌地图在Django项目中显示多个位置,django,google-maps-api-3,google-geocoder,Django,Google Maps Api 3,Google Geocoder,我想在django项目中使用GoogleMap显示多个邮件地址。地址是数据库中的变量 到目前为止,我已经尝试了django easy maps,它非常适合只显示一个地址。就像上面说的,如果你只有一个地址(可能会显示多个地址),那么它很容易使用 我还尝试了django-gmapi,它可以显示多个地址(latlng格式)。但我很难将我的美国邮政地址转换成latlng格式 因此,我的问题是: django easy maps是否支持多个地址 如何将geocoding与django-gmapi 有没有建
django easy maps
,它非常适合只显示一个地址。就像上面说的,如果你只有一个地址(可能会显示多个地址),那么它很容易使用
我还尝试了django-gmapi
,它可以显示多个地址(latlng格式)。但我很难将我的美国邮政地址转换成latlng格式
因此,我的问题是:
django easy maps
是否支持多个地址李>
geocoding
与django-gmapi
我也许可以帮助解决第二点…如何地理编码您现有的地址 更新
看起来gmapi内置了自己的地理编码助手,所以您可能不需要我在下面粘贴的任何代码。见:
我使用了以下代码:
import urllib
from django.conf import settings
from django.utils.encoding import smart_str
from django.db.models.signals import pre_save
from django.utils import simplejson as json
def get_lat_long(location):
output = "csv"
location = urllib.quote_plus(smart_str(location))
request = "http://maps.google.co.uk/maps/api/geocode/json?address=%s&sensor=false" % location
response = urllib.urlopen(request).read()
data = json.loads(response)
if data['status'] == 'OK':
# take first result
return (str(data['results'][0]['geometry']['location']['lat']), str(data['results'][0]['geometry']['location']['lng']))
else:
return (None, None)
def get_geocode(sender, instance, **kwargs):
tlat, tlon = instance._geocode__target_fields
if not getattr(instance, tlat) or not getattr(instance, tlon):
map_query = getattr(instance, instance._geocode__src_field, '')
if callable(map_query):
map_query = map_query()
lat, lon = get_lat_long(map_query)
setattr(instance, tlat, lat)
setattr(instance, tlon, lon)
def geocode(model, src_field, target_fields=('lat','lon')):
# pass src and target field names as strings
setattr(model, '_geocode__src_field', src_field)
setattr(model, '_geocode__target_fields', target_fields)
pre_save.connect(get_geocode, sender=model)
(可能是我从某个Github项目借用的,如果是,我已经失去了属性,对不起!)
然后,在您的模型上,您需要以下内容:
from django.db import models
from gmaps import geocode # import the function from above
class MyModel(models.Model):
address = models.TextField(blank=True)
city = models.CharField(max_length=32, blank=True)
postcode = models.CharField(max_length=32, blank=True)
lat = models.DecimalField(max_digits=12, decimal_places=6, verbose_name='latitude', blank=True, null=True, help_text="Will be filled automatically.")
lon = models.DecimalField(max_digits=12, decimal_places=6, verbose_name='longitude', blank=True, null=True, help_text="Will be filled automatically.")
def map_query(self):
"""
Called on save by the geocode decorator which automatically fills the
lat,lng values. This method returns a string to use as query to gmaps.
"""
map_query = ''
if self.address and self.city:
map_query = '%s, %s' % (self.address, self.city)
if self.postcode:
if map_query:
map_query = '%s, ' % map_query
map_query = '%s%s' % (map_query, self.postcode)
return map_query
geocode(Venue, 'map_query')
然后,要对现有数据进行地理编码,您只需重新保存所有现有记录,例如:
from .models import MyModel
for obj in MyModel.objects.all():
obj.save()
我也许可以帮助解决第二点…如何地理编码您现有的地址 更新
看起来gmapi内置了自己的地理编码助手,所以您可能不需要我在下面粘贴的任何代码。见:
我使用了以下代码:
import urllib
from django.conf import settings
from django.utils.encoding import smart_str
from django.db.models.signals import pre_save
from django.utils import simplejson as json
def get_lat_long(location):
output = "csv"
location = urllib.quote_plus(smart_str(location))
request = "http://maps.google.co.uk/maps/api/geocode/json?address=%s&sensor=false" % location
response = urllib.urlopen(request).read()
data = json.loads(response)
if data['status'] == 'OK':
# take first result
return (str(data['results'][0]['geometry']['location']['lat']), str(data['results'][0]['geometry']['location']['lng']))
else:
return (None, None)
def get_geocode(sender, instance, **kwargs):
tlat, tlon = instance._geocode__target_fields
if not getattr(instance, tlat) or not getattr(instance, tlon):
map_query = getattr(instance, instance._geocode__src_field, '')
if callable(map_query):
map_query = map_query()
lat, lon = get_lat_long(map_query)
setattr(instance, tlat, lat)
setattr(instance, tlon, lon)
def geocode(model, src_field, target_fields=('lat','lon')):
# pass src and target field names as strings
setattr(model, '_geocode__src_field', src_field)
setattr(model, '_geocode__target_fields', target_fields)
pre_save.connect(get_geocode, sender=model)
(可能是我从某个Github项目借用的,如果是,我已经失去了属性,对不起!)
然后,在您的模型上,您需要以下内容:
from django.db import models
from gmaps import geocode # import the function from above
class MyModel(models.Model):
address = models.TextField(blank=True)
city = models.CharField(max_length=32, blank=True)
postcode = models.CharField(max_length=32, blank=True)
lat = models.DecimalField(max_digits=12, decimal_places=6, verbose_name='latitude', blank=True, null=True, help_text="Will be filled automatically.")
lon = models.DecimalField(max_digits=12, decimal_places=6, verbose_name='longitude', blank=True, null=True, help_text="Will be filled automatically.")
def map_query(self):
"""
Called on save by the geocode decorator which automatically fills the
lat,lng values. This method returns a string to use as query to gmaps.
"""
map_query = ''
if self.address and self.city:
map_query = '%s, %s' % (self.address, self.city)
if self.postcode:
if map_query:
map_query = '%s, ' % map_query
map_query = '%s%s' % (map_query, self.postcode)
return map_query
geocode(Venue, 'map_query')
然后,要对现有数据进行地理编码,您只需重新保存所有现有记录,例如:
from .models import MyModel
for obj in MyModel.objects.all():
obj.save()
@用户1046012哦,我知道另一个问题也是你的,所以我想你已经有答案了@用户1046012哦,我知道另一个问题也是你的,所以我想你已经有答案了!