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Avoid errors from selecting "no selection" on multilink (issue2550722).
As discussed in issue 2550722 there are various cases where selecting
"no selection" on a multilink can result in inappropriate errors from
Roundup:
* If selecting "no selection" produces a null edit (a value was set in
the multilink in an edit with an error, then removed again, along
with all other changes, in the next form submission), so the page is
rendered from the form contents including the "-<id>" value for "no
selection" for the multilink.
* If creating an item with a nonempty value for a multilink has an
error, and the resubmission changes that multilink to "no selection"
(and this in turn has subcases, according to whether the creation
then succeeds or fails on the resubmission, which need fixes in
different places in the Roundup code).
All of these cases have in common that it is expected and OK to have a
"-<id>" value for a submission for a multilink when <id> is not set in
that multilink in the database (because the original attempt to set
<id> in that multilink had an error), so the hyperdb.py logic to give
an error in that case is thus removed. In the subcase of the second
case where the resubmission with "no selection" has an error, the
templating code tries to produce a menu entry for the "-<id>"
multilink value, which also results in an error, hence the
templating.py change to ignore such values in the list for a
multilink.
| author | Joseph Myers <jsm@polyomino.org.uk> |
|---|---|
| date | Thu, 27 Sep 2018 11:33:01 +0000 |
| parents | 33a1f03b9de0 |
| children | b76be13e027e |
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========================= Roundup Tracker Templates ========================= The templates distributed with Roundup are stored in the "share" directory nominated by Python. On Unix this is typically ``/usr/share/roundup/templates/`` (or ``/usr/local/share...``) and on Windows this is ``c:\python22\share\roundup\templates\``. The template loading looks in four places to find the templates: 1. *share* - eg. ``<prefix>/share/roundup/templates/*``. This should be the standard place to find them when Roundup is installed. 2. ``<roundup.admin.__file__>/../templates/*``. This will be used if Roundup's run in the distro (aka. source) directory. 3. ``<current working dir>/*``. This is for when someone unpacks a 3rd-party template. 4. ``<current working dir>``. This is for someone who "cd"s to the 3rd-party template dir. Templates contain: - modules ``schema.py`` and ``initial_data.py`` - directories ``html``, ``detectors`` and ``extensions`` (with appropriate contents) - template "marker" file ``TEMPLATE-INFO.txt``, which contains the name of the template, a description of the template and its intended audience. An example TEMPLATE-INFO.txt:: Name: classic Description: This is a generic issue tracker that may be used to track bugs, feature requests, project issues or any number of other types of issues. Most users of Roundup will find that this template suits them, with perhaps a few customisations. Intended-For: All first-time Roundup users