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fix url_prefix argument when nesting blueprints

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Grey Li 2021-05-13 18:26:24 +08:00 • committed by David Lord
parent 08e459e823
commit e93704fbfd
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3 changed files with 45 additions and 6 deletions
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16
src/flask/blueprints.py
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@ -260,7 +260,7 @@ class Blueprint(Scaffold):
"""Called by :meth:`Flask.register_blueprint` to register all
views and callbacks registered on the blueprint with the
application. Creates a :class:`.BlueprintSetupState` and calls
each :meth:`record` callbackwith it.
each :meth:`record` callback with it.
:param app: The application this blueprint is being registered
with.
@ -344,13 +344,17 @@ class Blueprint(Scaffold):
app.cli.add_command(self.cli)
for blueprint, bp_options in self._blueprints:
url_prefix = options.get("url_prefix", "")
if "url_prefix" in bp_options:
url_prefix = (
url_prefix.rstrip("/") + "/" + bp_options["url_prefix"].lstrip("/")
bp_options = bp_options.copy()
bp_url_prefix = bp_options.get("url_prefix")
if bp_url_prefix is None:
bp_url_prefix = blueprint.url_prefix
if state.url_prefix is not None and bp_url_prefix is not None:
bp_options["url_prefix"] = (
state.url_prefix.rstrip("/") + "/" + bp_url_prefix.lstrip("/")
)
bp_options["url_prefix"] = url_prefix
bp_options["name_prefix"] = options.get("name_prefix", "") + self.name + "."
blueprint.register(app, bp_options)