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Some Moodle forum posts do not load - Exporter class is missing required related data: #6

Closed taniwallach closed 4 years ago

taniwallach commented 4 years ago

Several posts I looked at hit the same error:

Coding error detected, it must be fixed by a programmer: Exporter class is missing required related data: (mod_forum\local\exporters\post) author => mod_forum\local\entities\author

More information about this error
Debug info:
Error code: codingerror
×Stack trace:
line 106 of /lib/classes/external/exporter.php: coding_exception thrown
line 59 of /mod/forum/classes/local/exporters/post.php: call to core\external\exporter->__construct()
line 144 of /mod/forum/classes/local/exporters/posts.php: call to mod_forum\local\exporters\post->__construct()
line ? of unknownfile: call to mod_forum\local\exporters\posts->mod_forum\local\exporters\{closure}()
line 148 of /mod/forum/classes/local/exporters/posts.php: call to array_map()
line 125 of /lib/classes/external/exporter.php: call to mod_forum\local\exporters\posts->get_other_values()
line 173 of /mod/forum/classes/local/builders/exported_posts.php: call to core\external\exporter->export()
line 98 of /mod/forum/classes/local/renderers/posts.php: call to mod_forum\local\builders\exported_posts->build()
line 210 of /mod/forum/classes/local/renderers/discussion.php: call to mod_forum\local\renderers\posts->render()
line 340 of /mod/forum/discuss.php: call to mod_forum\local\renderers\discussion->render()
mgage commented 4 years ago

This is a recognized bug in Moodle 3.8. -- you can reach these posts by searching for the title. https://tracker.moodle.org/browse/MDL-66292

taniwallach commented 4 years ago

This is a recognized bug in Moodle 3.8. -- you can reach these posts by searching for the title. https://tracker.moodle.org/browse/MDL-66292

If so, we apparently need to live with this issue for now - but as it makes forum use quite inconvenient - maybe some obvious warning should be added somewhere above the list of forum posts in the more active forums. Ex. below the line

Questions and comments regarding day-to-day use of WeBWorK.

at https://test1.webwork.maa.org/moodle/mod/forum/view.php?id=3

Proposed text:

Due to a Moodle bug, some forum posts do not load when you click the title of the tread, and the error Coding error detected, it must be fixed by a programmer: Exporter class is missing required related data: ... is displayed. In such cases, we recommend you paste the thread title into the search box, as the search results will show the relevant messages.

Can someone sign up to Moodle's bug tracker to (a) report that we hit this issue as there is a comment there that 3.7.4+ does not hit the isse ("Simey Lameze added a comment - 06/Feb/20 11:40 AM"), and (b) to watch the issue so we will be aware of when a fix becomes available.

mgage commented 4 years ago

Fixed by reimporting the database and upgrading one step at a time from moodle 1.9 to 3.8