Duplicate column name

Question

I\'ve changed my models an then I tried to migrate them, but got this error:

python manage.py migrate
Operations to perform:
  Apply all migrations: admin, conte         


        

Answer 1

When I had this issue, I had to go to each migration that said it had a duplicate column and merge the 0002_*.py migration file with the 0001_initial.py migration file.

1. Copy all the operations in the operations = [] list and paste them into the operations = [] list in the 0001_initial.py file.

migrations.AddField(
    model_name='words',
    name='short_description_eng',
    field=models.CharField(blank=True, default='', max_length=100, verbose_name='Условное обозначение Eng'),
),
migrations.AddField(
    model_name='words',
    name='short_description_rus',
    field=models.CharField(blank=True, default='', max_length=100, verbose_name='Условное обозначение Рус'),
),
migrations.AddField(
    model_name='words',
    name='short_description_tur',
    field=models.CharField(blank=True, default='', max_length=100, verbose_name='Условное обозначение Tür'),
),
migrations.AlterField(
    model_name='words',
    name='audio',
    field=models.FileField(blank=True, upload_to='audio', verbose_name='Озвучка'),
),
migrations.AlterField(
    model_name='words',
    name='english',
    field=models.TextField(blank=True, default='', verbose_name='English'),
),
migrations.AlterField(
    model_name='words',
    name='russian',
    field=models.TextField(blank=True, default='', verbose_name='Русский'),
),
migrations.AlterField(
    model_name='words',
    name='title',
    field=models.CharField(max_length=100, unique=True, verbose_name='Слово'),
),
migrations.AlterField(
    model_name='words',
    name='turkish',
    field=models.TextField(blank=True, default='', verbose_name='Türkçe'),
),

2. If you had other dependencies besides 0001_initial, you would copy all the lines in dependencies = [] (except the line that says('myapp', '0001_initial'),) migrations from the list of dependencies and paste them into the 0001_initial.py migration file.

Important Note: Make sure you grab any import dependencies too. I had no issues after following those simple steps.