django_mysqlclient和创建数据库

##迁移数据库

(Django) [kiosk@asimov ~/PycharmProjects/DjangoDemo/music]$ python3 manage.py makemigrations
.......

问题:

django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module.
Did you install mysqlclient?

解决:安装mysql-client(我用的anconda环境pip装不了的我用conda就装了,conda不行的话只能源码装了)

(Django) [kiosk@asimov ~/PycharmProjects/DjangoDemo/music]$ conda install mysqlclient   ##安装mysql-client
Collecting package metadata: done
Solving environment: done

## Package Plan ##

  environment location: /home/kiosk/anaconda3/envs/Django

  added / updated specs:
    - mysqlclient


The following packages will be downloaded:
  package                    |            build
    ---------------------------|-----------------
    certifi-2019.3.9           |           py37_0         155 KB
    mysql-connector-c-6.1.11   |       h597af5e_0         4.4 MB
    mysqlclient-1.3.14         |   py37h7b6447c_0          86 KB
    openssl-1.1.1c             |       h7b6447c_1         3.8 MB
    ------------------------------------------------------------
                                           Total:         8.5 MB

The following NEW packages will be INSTALLED:

  mysql-connector-c  pkgs/main/linux-64::mysql-connector-c-6.1.11-h597af5e_0
  mysqlclient        pkgs/main/linux-64::mysqlclient-1.3.14-py37h7b6447c_0

The following packages will be UPDATED:

 certifi                                 2018.11.29-py37_0 --> 2019.3.9-py37_0
  openssl                                 1.1.1b-h7b6447c_1 --> 1.1.1c-h7b6447c_1


Proceed ([y]/n)? y


Downloading and Extracting Packages
mysqlclient-1.3.14   | 86 KB     | ############################################
######################################################
certifi-2019.3.9     | 155 KB    | #############################################################
####################################################### | 100%
mysql-connector-c-6. | 4.4 MB    | ####################################
########################################################### | 100%
openssl-1.1.1c       | 3.8 MB    | ##########################################
######################################################### | 100%
Preparing transaction: done
Verifying transaction: done
Executing transaction: done

##配置url地址信息

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('index.urls')),
    #path('ranking.html', include('ranking.urls')),
    #path('play/',include('play.urls')),
    #path('comment/',include('comment.urls')),
    #path('search/',include('search.urls')),
    #path('user/',include('user.urls')),
]

当包含多个urls时其他的urls和views没写好的情况下,想创建数据库,就写好你写models这>个中的urls和views就可以了,不然其他的都要写好才能创建数据库(容易报错)

##数据库的迁移与创建

(Django) [kiosk@asimov ~/PycharmProjects/DjangoDemo/music]$ python3 manage.py makemigrations
Migrations for 'index':
  index/migrations/0001_initial.py
    - Create model Comment
    - Create model Dynamic
    - Create model Label
    - Create model Song
    - Add field song to dynamic
    - Add field song to comment

(Django) [kiosk@asimov ~/PycharmProjects/DjangoDemo/music]$ python3  manage.py migrate
System check identified some issues:

WARNINGS:
?: (mysql.W002) MySQL Strict Mode is not set for database connection 'default'
        HINT: MySQL's Strict Mode fixes many data integrity problems in MySQL, such as data truncation upon insertion, by escalating warnings into errors. It is strongly recommended you activate it. See: https://docs.djangoproject.com/en/2.1/ref/databases/#mysql-sql-mode
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, index, sessions
Running migrations:
Applying contenttypes.0001_initial... OK
  Applying auth.0001_initial... OK
  Applying admin.0001_initial... OK
  Applying admin.0002_logentry_remove_auto_add... OK
  Applying admin.0003_logentry_add_action_flag_choices... OK
  Applying contenttypes.0002_remove_content_type_name... OK

##查看数据库