从我的角度来看，我遇到了一个非常奇怪的问题，我想引起你的注意。
我正在构建一个 Django 网站，我想用他的 models.py 文件创建一个新应用。
我将此脚本写入我的 Mairie 模型应用程序:
# -*- coding: utf-8 -*-
from django.db import models
from django.utils.encoding import force_text
from django_countries.fields import CountryField
###############################################
# Choix à l'utilisateur pour le sexe du maire #
###############################################
SEX_CHOICES = (
('Masculin', 'Masculin'),
('Feminin', 'Féminin')
)
TITLE_CHOICES = (
('Mr', 'Monsieur'),
('Mlle', 'Mademoiselle'),
('Mme','Madame'),
('Dr','Docteur'),
('Me','Maître'),
)
INSTITUTION_CHOICES = (
('Mairie','Mairie'),
('Prefecture','Préfécture'),
('Autre','Autre')
)
DEVISE_CHOICES = (
('EUR','EUR (€)'),
('USD','USD ($)'),
('CFA','CFA')
)
MANDAT_CHOICES = (
('2011','2011'),
('2012','2012'),
('2013','2013'),
('2014','2014'),
('2015','2015'),
('2016','2016'),
('2017','2017'),
('2018','2018'),
('2019','2019'),
('2020','2020'),
('2021','2021'),
('2022','2022'),
('2023','2023'),
('2024','2024'),
('2025','2025'),
('2026','2026'),
('2027','2027'),
('2028','2028'),
('2029','2029'),
('2030','2030'),
('2031','2031')
)
####################################################################################
# Création d'une table permettant de renseigner toutes les #
# informations concernant la mairie et le maire #
####################################################################################
class Mairie(models.Model):
institution = models.CharField(max_length=30, choices=INSTITUTION_CHOICES, null=False, verbose_name='Nom/Enseigne/Raison Sociale')
adress = models.CharField(max_length=30, null=False, verbose_name='Adresse')
zip = models.IntegerField(verbose_name='Code Postal', null=False)
city = models.CharField(max_length=30, verbose_name='Ville', null=False)
country = CountryField(blank_label='Sélectionner un pays', verbose_name='Pays', null=False)
department = models.CharField(max_length=30, verbose_name='Département/Canton')
devise = models.CharField(max_length=30, choices=DEVISE_CHOICES, null=False, verbose_name='Devise')
fixe = models.CharField(max_length=30, verbose_name='Téléphone Fixe', null=False)
fax = models.CharField(max_length=30, verbose_name='Fax', blank=True)
mail = models.CharField(max_length=40, verbose_name = 'Mail', null=False)
web = models.CharField(max_length=40, verbose_name = 'Site Web')
#logo = models.ImageField(upload_to='logo')
title = models.CharField(max_length=12,choices=TITLE_CHOICES, verbose_name='Civilité du maire', null=False)
lastname = models.CharField(max_length=30, verbose_name='Nom de famille du maire', null=False)
firstname = models.CharField(max_length=30, verbose_name='Prénom(s) du maire', null=False)
sex = models.CharField(max_length=8, choices=SEX_CHOICES, verbose_name='Sexe du maire', null=False)
mandat1 = models.CharField(max_length=8, choices=MANDAT_CHOICES, verbose_name='Début du mandat', null=False)
mandat2 = models.CharField(max_length=8, choices=MANDAT_CHOICES, verbose_name='Fin du mandat', null=False)
但是，最后两个字段(mandat1 和 mandat2)不会迁移到我的 MySQL 数据库。这很奇怪，因为前面的字段(性别)写的完全一样，但效果很好。
我得到了这个错误:
Exception Value: (1054, "Unknown column 'mandat1' in 'field list'")
为了迁移我的 models.py 文件，我写道:
python manage.py makemigrations
python manage.py migrate
我正在使用 Django 1.10。
你有想法吗？
添加的文件
我的迁移文件如下所示:
# -*- coding: utf-8 -*-
# Generated by Django 1.10.2 on 2017-01-26 10:43
from __future__ import unicode_literals
from django.db import migrations, models
import django_countries.fields
class Migration(migrations.Migration):
initial = True
dependencies = [
]
operations = [
migrations.CreateModel(
name='Mairie',
fields=[
('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
('institution', models.CharField(choices=[(b'Mairie', b'Mairie'), (b'Prefecture', b'Pr\xc3\xa9f\xc3\xa9cture'), (b'Autre', b'Autre')], max_length=30, verbose_name=b'Nom/Enseigne/Raison Sociale')),
('adress', models.CharField(max_length=30, verbose_name=b'Adresse')),
('zip', models.IntegerField(verbose_name=b'Code Postal')),
('city', models.CharField(max_length=30, verbose_name=b'Ville')),
('country', django_countries.fields.CountryField(max_length=2, verbose_name=b'Pays')),
('department', models.CharField(max_length=30, verbose_name=b'D\xc3\xa9partement/Canton')),
('devise', models.CharField(choices=[(b'EUR', b'EUR (\xe2\x82\xac)'), (b'USD', b'USD ($)'), (b'CFA', b'CFA')], max_length=30, verbose_name=b'Devise')),
('fixe', models.CharField(max_length=30, verbose_name=b'T\xc3\xa9l\xc3\xa9phone Fixe')),
('fax', models.CharField(blank=True, max_length=30, verbose_name=b'Fax')),
('mail', models.CharField(max_length=40, verbose_name=b'Mail')),
('web', models.CharField(max_length=40, verbose_name=b'Site Web')),
('title', models.CharField(choices=[(b'Mr', b'Monsieur'), (b'Mlle', b'Mademoiselle'), (b'Mme', b'Madame'), (b'Dr', b'Docteur'), (b'Me', b'Ma\xc3\xaetre')], max_length=12, verbose_name=b'Civilit\xc3\xa9 du maire')),
('lastname', models.CharField(max_length=30, verbose_name=b'Nom de famille du maire')),
('firstname', models.CharField(max_length=30, verbose_name=b'Pr\xc3\xa9nom(s) du maire')),
('sex', models.CharField(choices=[(b'Masculin', b'Masculin'), (b'Feminin', b'F\xc3\xa9minin')], max_length=8, verbose_name=b'Sexe du maire')),
('mandat1', models.CharField(choices=[(b'2011', b'2011'), (b'2012', b'2012'), (b'2013', b'2013'), (b'2014', b'2014'), (b'2015', b'2015'), (b'2016', b'2016'), (b'2017', b'2017'), (b'2018', b'2018'), (b'2019', b'2019'), (b'2020', b'2020'), (b'2021', b'2021'), (b'2022', b'2022'), (b'2023', b'2023'), (b'2024', b'2024'), (b'2025', b'2025'), (b'2026', b'2026'), (b'2027', b'2027'), (b'2028', b'2028'), (b'2029', b'2029'), (b'2030', b'2030'), (b'2031', b'2031')], max_length=8, verbose_name=b'D\xc3\xa9but du mandat')),
('mandat2', models.CharField(choices=[(b'2011', b'2011'), (b'2012', b'2012'), (b'2013', b'2013'), (b'2014', b'2014'), (b'2015', b'2015'), (b'2016', b'2016'), (b'2017', b'2017'), (b'2018', b'2018'), (b'2019', b'2019'), (b'2020', b'2020'), (b'2021', b'2021'), (b'2022', b'2022'), (b'2023', b'2023'), (b'2024', b'2024'), (b'2025', b'2025'), (b'2026', b'2026'), (b'2027', b'2027'), (b'2028', b'2028'), (b'2029', b'2029'), (b'2030', b'2030'), (b'2031', b'2031')], max_length=8, verbose_name=b'Fin du mandat')),
],
),
]
命令:python manage.py showmigrations 看起来像:
MacBook-Pro-de-Valentin:Etat_civil valentinjungbluth$ python manage.py showmigrations
System check identified some issues:
WARNINGS:
?: (1_8.W001) The standalone TEMPLATE_* settings were deprecated in Django 1.8 and the TEMPLATES dictionary takes precedence. You must put the values of the following settings into your default TEMPLATES dict: TEMPLATE_DIRS.
BirthCertificate
[X] 0001_initial
Identity
[X] 0001_initial
Mairie
[X] 0001_initial
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
[X] 0008_alter_user_username_max_length
captcha
[X] 0001_initial
contenttypes
[X] 0001_initial
[X] 0002_remove_content_type_name
log
[X] 0001_initial
sessions
[X] 0001_initial
最佳答案
您的迁移和模型不同步。我的猜测是您使用未创建字段的 0001_initial 迁移的早期版本进行了迁移。
如果数据库中没有 Mairie 应用程序的重要数据，您可以还原迁移，然后重新运行。 警告 - 这将删除 Mairie 应用程序数据库表中的所有数据。如果其他应用程序具有应用程序中模型的外键，您可能不应该使用它。
python manage.py migrate Mairie zero
python manage.py migrate Mairie
如果数据库中有您不能使用的重要数据，那么您可以:
- 从迁移文件中删除缺失的字段，然后再次运行
makemigrations和migrate。 - 手动将字段添加到您的数据库(
sqlmigrate命令可能有所帮助)
关于python - Django 不创建模型字段，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41871836/