MySQLdb._exceptions.OperationalError：1054，“字段列表中的未知列'SOMEOBJECT

问题描述

在此python manage.py makemigrations-完成之前，还python manage.py迁移-完成

我不知道发生了什么，在本教程中，我遵循的是，没有这样的错误-模型中的语法是相同的。

       from django.db import models
    
    
    class Reporter(models.Model):
        first_name = models.CharField(max_length=30)
        last_name = models.CharField(max_length=30)
        email = models.EmailField()
    
        def __str__(self):
            return self.first_name
    
    
    class Article(models.Model):
        headline = models.CharField(max_length=30)
        pub_date = models.DateField()
        reporter = models.ForeignKey(Reporter,on_delete=models.CASCADE)
    

      def __str__(self):
        return self.headline

    class Meta:
        ordering = ('headline',)

已迁移，并在admin.py文章中添加了发布

       Python 3.6.12 (default,Aug 18 2020,02:08:22) 
        
            GCC 5.4.0 20160609 on linux*
        
            Type "help","copyright","credits" or "license" for more                information.
        

    InteractiveConsole
    >>> from MyApp.models import Article,Reporter
    >>> r = Reporter(first_name = 'John',last_name = Doe,e-mail = 'abc@gmail.com')
      File "<console>",line 1
    SyntaxError: keyword can't be an expression
    >>> r = Reporter(first_name = 'John',last_name = 'Doe',email = 'abc@gmail.com')
    >>> r.save()
    >>> r1 = Reporter(first_name = 'Boris',last_name = 'Milanovic',email = 'xyz@gmail.com')
    >>> r1.save()
    >>> from datetime import date
    >>> a = Article(headline = 'this is our first article',pub_date = date(2020,11,01,reporter=r)
      File "<console>",line 1
        a = Article(headline = 'this is our first article',reporter=r)
                                                                                       ^
    SyntaxError: invalid token
    >>> a = Article(headline = 'this is our first article',01),1),reporter=r)
    >>> a.save()
    Traceback (most recent call last):
      File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/backends/utils.py",line 84,in _execute
        return self.cursor.execute(sql,params)
      File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/backends/MysqL/base.py",line 73,in execute
        return self.cursor.execute(query,args)
      File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/MysqLdb/cursors.py",line 206,in execute
        res = self._query(query)
      File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/MysqLdb/cursors.py",line 319,in _query
        db.query(q)
      File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/MysqLdb/connections.py",line 259,in query
        _MysqL.connection.query(self,query)
    MysqLdb._exceptions.OperationalError: (1054,"UnkNown column 'reporter_id' in 'field list'")

那么，是不是在此版本的Django 3.1.2中存在错误？据我所知，当我使用较低版本的Django（2.1或2.0.1，我没有这个问题）进行多对多课程时。。

有什么建议吗？ =而且我现在看到很多人都面临着同样的问题...

***Name of App and objects are irelevant,apply them to yours and tell me and what can I do wrong and where I am and thousands are doing wrong. ***

I got to the point to edit connections.py something regarding cursor (reocurring thing,not sure) but didn't apply ...

First I was doing with --fake (migrations) but then I somehow,when dropped all problematic tables the migrations are working.

**UPDATE FOR MORE DETAILS**

[Screenshot of my project 1][1],[Project settings 1][2],[Screenshot of project settings.py 2][3],[Fresh migration file 0001...py where is more described what's done in mirations][4],[1]: https://i.stack.imgur.com/7BE5v.png
  [2]: https://i.stack.imgur.com/6bzv6.png
  [3]: https://i.stack.imgur.com/jTlol.png
  [4]: https://i.stack.imgur.com/oVrAF.png

此更新：我已经删除了缓存文件，删除了先前的迁移，但仍然出现以下错误：**我看到很多人在这里遇到了同样的问题，遍地，但无济于事。请帮助。.这是错误：

    Python 3.6.12 (default,02:08:22) 
    [GCC 5.4.0 20160609] on linux
    Type "help","credits" or "license" for more information.
    
       
    
     (InteractiveConsole)
    
    >>> from MyApp.models import Article,Reporter
    >>> r = Reporter(first_name = 'Parwiz',last_name = 'Something',`email = 'xsx@sf.com')`
    >>> r.save()
    >>> from datetime import date
    >>> a = Article(headline = 'this is our first article',pub_date = `date(2020,3),reporter=r)`
    >>> a.save()
     
    
       Traceback (most recent call last):
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/backends/utils.py",in _execute
            return self.cursor.execute(sql,params)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/backends/MysqL/base.py",in execute
            return self.cursor.execute(query,args)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/MysqLdb/cursors.py",in execute
            res = self._query(query)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/MysqLdb/cursors.py",in _query
            db.query(q)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/MysqLdb/connections.py",in query
            _MysqL.connection.query(self,query)
        MysqLdb._exceptions.OperationalError: (1054,"UnkNown column 'reporter_id' in 'field list'")

上述异常是以下异常的直接原因：

    Traceback (most recent call last):
          File "<console>",line 1,in <module>
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/models/base.py",line 754,in save
            force_update=force_update,update_fields=update_fields)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/models/base.py",line 792,in save_base
            force_update,using,update_fields,File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/models/base.py",line 895,in _save_table
            results = self._do_insert(cls._base_manager,fields,returning_fields,raw)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/models/base.py",line 935,in _do_insert
            using=using,raw=raw,File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/models/manager.py",line 85,in manager_method
            return getattr(self.get_queryset(),name)(*args,**kwargs)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/models/query.py",line 1254,in _insert
            return query.get_compiler(using=using).execute_sql(returning_fields)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/models/sql/compiler.py",line 1397,in execute_sql
            cursor.execute(sql,params)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/backends/utils.py",line 99,in execute
            return super().execute(sql,line 66,in execute
            return self._execute_with_wrappers(sql,params,many=False,executor=self._execute)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/backends/utils.py",line 75,in _execute_with_wrappers
            return executor(sql,many,context)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/backends/utils.py",params)
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/utils.py",line 90,in __exit__
            raise dj_exc_value.with_traceback(traceback) from exc_value
          File "/home/Desktop/RelationshipsInDjango/lib/python3.6/site-packages/django/db/backends/utils.py",query)
        django.db.utils.OperationalError: (1054,"UnkNown column 'reporter_id' in 'field list'")

解决方法

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django-3.1 django-migrations linux linux mysql-python python-3.x

MySQLdb._exceptions.OperationalError：1054，“字段列表中的未知列'SOMEOBJECT_id'”

问题描述

解决方法