python manage.py inspectdb >polls/models.py
inspectdb簡單介紹
具體用法,在Django項目下
python manage.py inspecdb > [your app name]\models.py
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作用
衆所周知，Django較爲適合原生開發，即通過該框架搭建一個全新的項目，通過在修改models.py來創建新的數據庫表。但是往往有時候，我們需要利用到之前的已經設計好的數據庫，數據庫中提供了設計好的多種表單。那麼這時如果我們再通過models.py再來設計就會浪費很多的時間。所幸Django爲我們提供了inspecdb的方法。他的作用即使根據已經存在對的mysql數據庫表來反向映射結構到models.py中.
inspectdb使用步驟
通過配置settings文件以及__init__.py來連接到本地的mysql數據庫。（之前的博客有談到方法）
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'second_shop',
'USER':'root',
'PASSWORD':'123',
'HOST':'127.0.0.1',
'PORT':'3306',
}
}
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在terminal中執行語句
python manage.py inspectdb > [your app name]\models.py
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查看models.py代碼
# This is an auto-generated Django model module.
# You'll have to do the following manually to clean this up:
# * Rearrange models' order
# * Make sure each model has one field with primary_key=True
# * Remove `managed = False` lines if you wish to allow Django to create, modify, and delete the table
# Feel free to rename the models, but don't rename db_table values or field names.
#
# Also note: You'll have to insert the output of 'django-admin sqlcustom [app_label]'
# into your database.
from __future__ import unicode_literals
from django.db import models
class Good(models.Model):
good_name = models.CharField(max_length=255, blank=True, null=True)
good_price = models.DecimalField(max_digits=10, decimal_places=0, blank=True, null=True)
good_days = models.IntegerField(max_length=10, blank=True)
good_id = models.CharField(max_length=18, blank=True)
class Meta:
managed = False
# False表示在遷移時候不新建此表，所以這裏應該改爲TRUE
db_table = 'good'