Django初始化中碰到的几个问题记录下

客官°小女子只卖身不卖艺 2022-12-07 15:06 178阅读 0赞

## 1. 1146,Table ‘xxxx.django\_session’ doesn’t exist" ##

在setting.py中添加SESSION_ENGINE = 'django.contrib.sessions.backends.cache'

## 2.type object ‘Token’ has no attribute 'objects ##

这个在前后端分离中，重写userModel的save函数在中存储Token的时候会碰到。
    解决办法：

# 添加 'rest_framework.authtoken' 至 settings.py 的 INSTALLED_APPS 中，
    INSTALLED_APPS = [
        'simpleui',
        'django.contrib.admin',
        'django.contrib.auth',
        'django.contrib.contenttypes',
        'django.contrib.sessions',
        'django.contrib.messages',
        'django.contrib.staticfiles',
        'corsheaders',
        'rest_framework',
        # 这里---------------------------------------
        'rest_framework.authtoken',
    # 然后执行
    python manage.py makemigrations
    python manage.py migrate

## 3. 如何咋admin中使某个字段显示为不可编辑 ##

再对应app目录下的admin.py中，对某个admin类添加readonly\_fields字段  
示例代码：

@admin.register(JobListModel)
    class JobListAdmin(admin.ModelAdmin):
        list_display = ['id', 'name', 'type', 'per', 'create_time']
        search_fields = ['name', 'type', 'per']
        ordering = ['create_time']
        list_filter = ['id', 'create_time', 'type', 'per']
        # 这里---------------------------------------------------
        readonly_fields = ['create_time']
    
        list_per_page = 30

## 4. 基础userModel时报错auth.User.groups: (fields.E304) Reverse accessor for ‘User.groups’ clashes with reverse accessor for ‘User.groups’… ##

在setting.py中添加AUTH_USER_MODEL = 'users.UserProfile'即可

## 5. You must either define the environment variable DJANGO\_SETTINGS\_MODULE or call settings.configure() ##

这个是pycharm配置的问题 点击编辑配置菜单进入配置编辑界面  
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在Environment variables中添加（记得和前面的配置中间要有分隔符冒号;）  
DJANGO\_SETTINGS\_MODULE=manage\_server.settings  
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