如何自定义某个search_fields字段的UI组件

[lifengmds]

以教程中的示例代码为例，category的筛选需要下拉菜单dropdown list, 但是系统默认为input文本输入。如何重写并自定义该字段、并且不影响其它search_fields字段的自动生成。

from fastapi_amis_admin import admin
from fastapi_amis_admin.models.fields import Field

class Article(SQLModel, table=True):
    id: int = Field(default=None, primary_key=True, nullable=False)
    title: str = Field(title='ArticleTitle', max_length=200)
    description: Optional[str] = Field(default='', title='ArticleDescription', max_length=400)
    status: bool = Field(None, title='status')
    content: str = Field(title='ArticleContent')
    category_id: Optional[int] = Field(default=None, foreign_key="category.id", title='CategoryId')
    is_active: bool = False


@site.register_admin
class ArticleAdmin(admin.ModelAdmin):
    page_schema = 'article management'
    model = Article
    # Set the fields to display
    list_display = [Article.id, Article.title, Article.description, Article.status, Category.name]
    # Set up fuzzy search field
    search_fields = [Article.title, Category.name]

    # custom base selector
    async def get_select(self, request: Request) -> Select:
        stmt = await super().get_select(request)
        return stmt.outerjoin(Category, Article.category_id == Category.id)