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Added the error_redirect() utility, and revised the documentation of the stored status utilities in the Mia core application.

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依瑪貓 2020-07-28 20:01:58 +08:00
parent 958e3048bb
commit 50c06bd3d3
1 changed files with 34 additions and 7 deletions
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41
mia_core/status.py
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@ -27,11 +27,11 @@ from mia_core.utils import UrlBuilder
def success_redirect(request, url, success):
"""Redirects to a specific URL on error, with the status ID appended
as the query parameter I<s>. The status will be loaded upon the
next request at L</before_dispatch>. You have to return and exit
from the controller manually after the redirection.
as the query parameter "s". The status will be loaded with the
retrieve_status template tag.
Args:
request (HttpRequest): The request.
url (str): The destination URL.
success (str): The success text message.
@ -42,13 +42,32 @@ def success_redirect(request, url, success):
return HttpResponseRedirect(str(UrlBuilder(url).add_param("s", id)))
def error_redirect(request, url, form, errors_by_field):
"""Redirects to a specific URL on error, with the status ID appended
as the query parameter "s". The status will be loaded with the
retrieve_status template tag.
Args:
request (HttpRequest): The request.
url (str): The destination URL.
form (dict[str]): The received POSTed form.
errors_by_field (dict[str]): The failed fields and their corresponding
error messages.
Returns:
HttpResponseRedirect: The redirect response.
"""
id = _store(request, {"form": form, "errors_by_field": errors_by_field})
return HttpResponseRedirect(str(UrlBuilder(url).add_param("s", id)))
def _store(request, status):
"""Stores the status into the session, and returns the status ID that can
be used to retrieve the status later with retrieve().
Args:
request (HttpRequest): The request
status (dict): The dict of the status
request (HttpRequest): The request.
status (dict): The dict of the status.
Returns:
str: The status ID
@ -65,8 +84,8 @@ def _retrieve(request, id):
be used to retrieve the status later with retrieve().
Args:
request (HttpRequest): The request
id (str): The status ID
request (HttpRequest): The request.
id (str): The status ID.
Returns:
dict: The status, or None if the status does not exist.
@ -79,6 +98,14 @@ def _retrieve(request, id):
def _new_status_id(status_store):
"""Generates and returns a new status ID that does not exist yet.
Args:
status_store (dict): The status storage.
Returns:
str: The newly-generated status ID.
"""
while True:
id = ""
while len(id) < 16: