使用PostgreSQL的Django全文搜索，跨多个不同的模型

from django.contrib.postgres.search import SearchVectorField

class YourModel(models.Model):
    content = models.TextField()
    search_vector = SearchVectorField(null=True)

from django.db import migrations

class Migration(migrations.Migration):

    dependencies = [
        ('yourapp', '0001_initial'),
    ]

    operations = [
        migrations.RunSQL(
            "CREATE INDEX yourmodel_search_vector ON yourapp_yourmodel USING gin(search_vector);",
            "DROP INDEX yourapp_yourmodel_search_vector;"
        ),
    ]

from django.contrib.postgres.search import SearchQuery, SearchRank

def search(query):
    search_vector = SearchVector('content')
    search_query = SearchQuery(query)
    results = YourModel.objects.annotate(rank=SearchRank(search_vector, search_query)).filter(rank__gte=0.3).order_by('-rank')
    return results