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# coding=utf-8
from flask import Flask, render_template
from flask.views import MethodView
class BaseView(MethodView):
name = None # type: str
def render(self, *template_names, **context):
context["current_page"] = self.name
context["view"] = self
return render_template(template_names, **context)
class RouteView(BaseView):
path = None # type: str
@classmethod
def setup(cls: "RouteView", app: Flask):
if not cls.path or not cls.name:
raise RuntimeError("Route views must have both `path` and `name` defined")
app.add_url_rule(cls.path, view_func=cls.as_view(cls.name))
class ErrorView(BaseView):
error_code = None # type: int
@classmethod
def setup(cls: "ErrorView", app: Flask):
if not cls.name or not cls.error_code:
raise RuntimeError("Error views must have both `name` and `error_code` defined")
app._register_error_handler(None, cls.error_code, cls.as_view(cls.name))
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