fix: Set default language

[shaohuzhang1]

fix: Set default language

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[shaohuzhang1]

The provided migration file has several small improvements and optimizations:

1. Removed Unnecessary Import: import users.models.user can be removed as it's not used in the migration.

2. Use of None Instead of Default Value Function: The default value should use None instead of calling a custom function, which makes the logic more straightforward and cleaner.

3. Optional Field: Added {null=True} to make the language field optional. Nullable fields allow records to have values set to NULL, whereas non-nullable fields must always have a value.

Here is the updated migration:

# Generated by Django 4.2.15 on 2025-01-20 06:59

from django.db import migrations, models


class Migration(migrations.Migration):

    dependencies = [
        ('users', '0004_alter_user_email'),
    ]

    operations = [
        migrations.AddField(
            model_name='user',
            name='language',
            field=models.CharField(max_length=10, null=True, verbose_name='语言'),
        ),
    ]

These changes ensure that the language field allows for nullable options without triggering a dependency error when running Migrate commands.