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Fix nested blueprint url_prefix

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This fixes the case where the blueprint is registered with a
url_prefix but any child blueprints have no prefixes.
This commit is contained in:
pgjones 2021-05-16 19:32:29 +01:00
parent f64fff6476
commit 6fbdeb80c7
2 changed files with 16 additions and 0 deletions
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2
src/flask/blueprints.py
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@ -354,6 +354,8 @@ class Blueprint(Scaffold):
bp_options["url_prefix"] = (
state.url_prefix.rstrip("/") + "/" + bp_url_prefix.lstrip("/")
)
else:
bp_options["url_prefix"] = state.url_prefix
bp_options["name_prefix"] = options.get("name_prefix", "") + self.name + "."
blueprint.register(app, bp_options)

14
tests/test_blueprints.py
View file

@ -868,3 +868,17 @@ def test_nested_blueprint_url_prefix(app, client):
assert client.get("/parent/child/").data == b"Child"
assert client.get("/parent/child/grandchild/").data == b"Grandchild"
assert client.get("/parent/child/orange/").data == b"Apple"
def test_nested_blueprint_url_prefix_only_parent_prefix(app, client):
parent = flask.Blueprint("parent", __name__)
child = flask.Blueprint("child", __name__)
@child.route("/child-endpoint")
def child_index():
return "Child"
parent.register_blueprint(child)
app.register_blueprint(parent, url_prefix="/parent")
assert client.get("/parent/child-endpoint").data == b"Child"