Question

我已经创建了一个模型语言。我做了makemigrations和migrate部分。一切都很顺利。我在设置文件中注册了我的数据库。

当我点击管理页面上的语言表时，我得到了这个：

OperationalError at /admin/testdb/language/
no such table: testdb_language
Request Method: GET
Request URL:    http://localhost:8000/admin/testdb/language/
Django Version: 1.9.5
Exception Type: OperationalError
Exception Value:    
no such table: testdb_language
Exception Location: /Users/nep/Documents/Development/Private/testdjango/myvenv/lib/python3.5/site-packages/django/db/backends/sqlite3/base.py in execute, line 323
Python Executable:  /Users/nep/Documents/Development/Private/testdjango/myvenv/bin/python
Python Version: 3.5.1
Python Path:    
['/Users/nep/Documents/Development/Private/testdjango',
 '/Library/Frameworks/Python.framework/Versions/3.5/lib/python35.zip',
 '/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5',
 '/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/plat-darwin',
 '/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/lib-dynload',
 '/Users/nep/Documents/Development/Private/testdjango/myvenv/lib/python3.5/site-packages']

我的模型定义如下：

from django.db import models

class Oxn(models.Model):
    objectId = models.CharField(max_length=100, unique=True)
    name = models.CharField(max_length=100)
    picture = models.CharField(max_length=200)

class Language(models.Model):
    objectId = models.CharField(max_length=100, unique=True)
    code = models.CharField(max_length=10)
    language = models.CharField(max_length=100)

我没有看到问题所在。有人能帮助我吗？

编辑：

这是迁移的输出：

(myvenv) ➜  gins4udjango python manage.py showmigrations       
admin
 [X] 0001_initial
 [X] 0002_logentry_remove_auto_add
auth
 [X] 0001_initial
 [X] 0002_alter_permission_name_max_length
 [X] 0003_alter_user_email_max_length
 [X] 0004_alter_user_username_opts
 [X] 0005_alter_user_last_login_null
 [X] 0006_require_contenttypes_0002
 [X] 0007_alter_validators_add_error_messages
contenttypes
 [X] 0001_initial
 [X] 0002_remove_content_type_name
ginsdb
 [X] 0001_initial
sessions
 [X] 0001_initial

修改

来自迁移的

0001_initial.py具有以下内容：

# -*- coding: utf-8 -*-
# Generated by Django 1.9.5 on 2016-04-29 14:51
from __future__ import unicode_literals

from django.db import migrations, models
import django.db.models.deletion


class Migration(migrations.Migration):

    initial = True

    dependencies = [
    ]

    operations = [
        migrations.CreateModel(
            name='Country',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('objectId', models.CharField(max_length=100, unique=True)),
                ('name', models.CharField(max_length=100)),
            ],
        ),
        migrations.CreateModel(
            name='Gin',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('objectId', models.CharField(max_length=100, unique=True)),
                ('alcohol', models.FloatField(blank=True, default=None, null=True)),
                ('name', models.CharField(max_length=100)),
                ('picture', models.CharField(max_length=200)),
            ],
        ),
        migrations.CreateModel(
            name='GinLocal',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('objectId', models.CharField(max_length=100, unique=True)),
                ('origin', models.TextField()),
                ('serve', models.TextField()),
                ('aroma', models.TextField()),
                ('country', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='ginsdb.Country', to_field='objectId')),
                ('gin', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='ginsdb.Gin', to_field='objectId')),
            ],
        ),
        migrations.CreateModel(
            name='Language',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('objectId', models.CharField(max_length=100, unique=True)),
                ('code', models.CharField(max_length=10)),
                ('language', models.CharField(max_length=100)),
            ],
        ),
        migrations.CreateModel(
            name='Type',
            fields=[
                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('objectId', models.CharField(max_length=100, unique=True)),
                ('typeName', models.CharField(max_length=100)),
                ('language', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='ginsdb.Language', to_field='objectId')),
            ],
        ),
        migrations.AddField(
            model_name='ginlocal',
            name='language',
            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='ginsdb.Language', to_field='objectId'),
        ),
        migrations.AddField(
            model_name='ginlocal',
            name='types',
            field=models.ManyToManyField(to='ginsdb.Type'),
        ),
        migrations.AddField(
            model_name='country',
            name='language',
            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='ginsdb.Language', to_field='objectId'),
        ),
    ]

Answer 1

0001_initial应用的ginsdb迁移包含Language模型，因此应该在迁移时创建。

如果您仍在开发并且没有任何重要数据，那么最简单的方法是删除数据库，然后重新运行新数据库的迁移。只需删除sqlite数据库文件，然后重新运行./manage.py migrate。

如果您需要保留数据库，那么您可以尝试手动创建模型，但这将更加棘手。您可以通过运行以下命令查看所需的SQL来创建模型：

./manage.py sqlmigrate ginsdb 0001_initial

Django Admin没有这样的表

1 个答案: