我在我的 django 模型中添加位置字段它顯示一個錯誤

Question

當我嘗試遷移它時，我試圖在 postgis 擴展的幫助下向我的 django 模型添加一個位置字段，但錯誤顯示：

django.db.utils.OperationalError：無法打開擴展控制文件“/usr/share/postgresql/10/extension/postgis.control”：沒有那個文件或目錄

我已經更新了我的 settings.py

INSTALLED_APPS = [
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'meenfee',
    'accounts',
    'rest_framework',
    'rest_auth',
    'rest_auth.registration',
    'django.contrib.sites',
    'allauth',
    'django.contrib.gis',
    'allauth.account',
    'allauth.socialaccount',
    'allauth.socialaccount.providers.facebook',
    'allauth.socialaccount.providers.google',
    'django.contrib.admin',
]


 DATABASES = {
    'default': {
        'ENGINE': 'django.contrib.gis.db.backends.postgis',
        'NAME': 'meenfeefinal',
        'USER': 'meenfeefinaluser',
        'PASSWORD': 'password',
        'HOST': 'localhost',
        'PORT': '',
    }
}

這是我的models.py。 查看位置字段

from django.contrib.gis.db import models as gis_models




class Service(models.Model):



    user                    = models.ForeignKey(User, on_delete=models.CASCADE)
    service_name            = models.CharField(max_length=200,null=True,default="sample service")
    category                = models.ForeignKey(Category, on_delete=models.CASCADE)  
    subcategory             = models.ForeignKey(SubCategory,on_delete=models.CASCADE)
    experience              = models.TextField(blank=True,null=True)
    levelskill              = models.CharField(max_length=120, choices=LEVELSKILLS)
    service_place           = models.CharField(max_length=120, choices=LOCATION)
    location                = gis_models.PointField(u'longitude/latitude',geography=True, blank=True, null=True)
    city                    = models.ForeignKey(City,blank=True,null=True,on_delete=models.DO_NOTHING)
    distance_limit          = models.CharField(max_length=100, choices=DISTANCE)
    service_pricing         = models.PositiveIntegerField(help_text='in Jordanian dinar')
    pricing_timing_unit     = models.CharField(max_length=30,choices=PRICINGUNIT)
    quote_at_request        = models.BooleanField(default=False, help_text='This will create popup when they accept a requester request')
    provide_tools           = models.BooleanField(default=True)
    tool_specify            = models.TextField(blank =True, null=True)
    instant_booking         = models.BooleanField(default =True)
    avg_rating              = models.FloatField(default=0.0)
    created                 = models.DateTimeField(auto_now_add=True)

    def __int__(self):
        return self.id

    class Meta:
        verbose_name_plural = "Services"

我只是想在我的服務模型中成功添加位置字段提前謝謝

Answer 1

你的 postgres DB 缺少 postgis 插件

請使用以下命令安裝 postgis 擴展

sudo apt-get install postgis postgresql-9.3-postgis-scripts

請使用與您的 postgres db 相同的 postgis 版本

Answer 2

sudo apt-get install postgis postgresql-11-postgis-scripts給了我：

The following packages have unmet dependencies:
 postgis : Depends: libgdal20 (>= 2.0.1) but it is not installable
           Depends: libproj12 (>= 4.9.0) but it is not installable
           Recommends: postgresql-postgis
           Recommends: postgis-doc but it is not going to be installed

然后，我嘗試成功：
sudo apt-get install postgresql-11-postgis-2.5-scripts