继承重写
在fastapi-amis-admin中类的继承和重写非常广泛,熟练的应用继承重写将让你的代码更简洁,更易于拓展.
- 通常的管理页面继承自默认管理类,例如:
IframeAdmin,PageAdmin,ModelAdmin,FormAdmin,AdminApp等.
- 继承自默认管理类的管理页面,也可以被二次或多次继承.
示例-1(自定义首页)
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17 | from fastapi_amis_admin import admin
# 取消默认首页
site.unregister_admin(admin.HomeAdmin)
# 注册自定义首页
@site.register_admin
class MyHomeAdmin(admin.HomeAdmin):
async def get_page(self, request: Request) -> Page:
# 获取默认页面
page = await super().get_page(request)
# 自定义修改
page.body.title = 'MyHome'
...
return page
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示例-2(自定义模板管理基类)
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22 | import datetime
from fastapi_amis_admin import admin, amis
class MyJinja2Admin(admin.TemplateAdmin):
templates: Jinja2Templates = Jinja2Templates(directory='apps/demo/templates')
@site.register_admin
class SimpleTemplateAdmin(MyJinja2Admin):
page_schema = amis.PageSchema(label='Jinja2', icon='fa fa-link')
template_name = 'simple.html'
async def get_page(self, request: Request) -> Dict[str, Any]:
return {'current_time': datetime.datetime.now()}
@site.register_admin
class ElementTemplateAdmin(MyJinja2Admin):
page_schema = amis.PageSchema(label='ElementUI', icon='fa fa-link')
template_name = 'element.html'
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示例-3(重用模型管理类)
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41 | from fastapi_amis_admin import admin
from fastapi_amis_admin.models.fields import Field
# 创建一个SQLModel模型,详细请参考: https://sqlmodel.tiangolo.com/
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 = '文章管理'
model = Article
# 设置需要展示的字段
list_display = [Article.id, Article.title, Article.description, Article.status, Category.name]
# 设置模糊搜索字段
search_fields = [Article.title, Category.name]
# 自定义基础选择器
async def get_select(self, request: Request) -> Select:
stmt = await super().get_select(request)
return stmt.outerjoin(Category, Article.category_id == Category.id)
@site.register_admin
class ActiveArticle(ArticleAdmin):
"""继承重用`ArticleAdmin`;此示例较为简单,实际应用可能比较复杂."""
# 自定义路由前缀
router_prefix = '/article.active'
# 重写基础选择器
async def get_select(self, request: Request) -> Select:
stmt = await super().get_select(request)
return stmt.where(Article.is_active == True)
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示例-4(自定义管理应用)
参考: fastapi_user_auth.UserAuthApp
示例-5(自定义管理站点)
参考: 基础教程->站点配置->自定义管理站点
参考: fastapi_user_auth.AuthAdminSite