如何从Django数据库在Mysql中显示所有现有记录?

时间:2019-08-08 09:41:02

标签: mysql django

我将Django数据库模型迁移到MySQL。当我尝试在MySQL中访问数据时,似乎找不到现有数据。我该如何解决?

迁移代码:

settings.py:

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'sample',
        'USER': '********',
        "PASSWORD": '********',
        'HOST': '*****',
        'PORT': '*****',
        'OPTIONS': {
        'sql_mode': 'traditional',
        }
    }
}

models.py

from django.db import models
import os
from PIL import Image
from datetime import date
import datetime
from .validators import validate_file_extension
import base64
from django.utils.functional import cached_property
from django.utils.html import format_html



def get_directory_path(instance, filename):
    today = date.today()
    t = datetime.datetime.now() 
    day, month, year = today.day, today.month, today.year
    hour, minutes, seconds = t.hour, t.minute, t.second
    filename = str(day) + str(month) + str(year) + str(hour) + str(minutes) + str(seconds) + '.png'
    dir = 'media'
    path = '{0}/{1}'.format(dir, filename)
    return path


class Image(models.Model):
    image = models.FileField(upload_to = get_directory_path, null = True , validators=[validate_file_extension])
    created_date = models.DateTimeField(auto_now = True)

    def __str__(self):
        return str(self.id)

此后,我输入:

python manage.py makemigrations
python manage.py migrate

一切似乎都正常,但是我无法查看我的数据。有什么建议吗?

1 个答案:

答案 0 :(得分:0)

您以前使用过sqlite吗?更改数据库并迁移后,在MySql中仅创建数据库架构(表)。您将丢失以前的所有数据,并且无法检索它们。