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[Kristina Hoeppner <1897981@xxxxxxxxxxxxxxxxxx>]

** Changed in: mahara/21.04
   Importance: High => Medium

** Changed in: mahara/20.10
   Importance: High => Medium

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https://bugs.launchpad.net/bugs/1897981

Title:
  Leap2A import shows Countable error

Status in Mahara:
  Confirmed
Status in Mahara 20.10 series:
  Confirmed
Status in Mahara 21.04 series:
  In Progress

Bug description:
  Using QA Mahara with the following settings on Windows:
  PHP 7.4
  Postgres 10.9
  Skins enabled
  Individual themes enabled
  Pre-populated data
  Maroon theme
  Chrome

  Steps taken:
  1. Log in as a regular person
  2. Import a leap2a file

  Expected:
  You see:
  Your portfolio was imported successfully

  Actual
  The portfolio imports, but there is the following error, which was a PHP 7.2 change to count()(see screenshot):

  
  [WAR] f7 (import/leap/lib.php:1774) count(): Parameter must be an array or an object that implements Countable
  Call stack (most recent first):
  log_message("count(): Parameter must be an array or an object t...", 8, true, true, "/var/www/mahara/htdocs/import/leap/lib.php", 1774) at /var/www/mahara/htdocs/lib/errors.php:521
  error(2, "count(): Parameter must be an array or an object t...", "/var/www/mahara/htdocs/import/leap/lib.php", 1774, array(size 3)) at /var/www/mahara/htdocs/import/leap/lib.php:1774
  PluginImportLeap->_fixref("portfolio:artefact110") at /var/www/mahara/htdocs/import/leap/lib.php:1721
  PluginImportLeap->fix_artefact_reference("<div> <p><img width="640" alt="md_5ac44dbd9de98.pn...") at /var/www/mahara/htdocs/import/leap/lib.php:1663
  PluginImportLeap->fix_artefact_references(object(stdClass)) at /var/www/mahara/htdocs/import/leap/lib.php:344
  PluginImportLeap->do_import_from_requests() at /var/www/mahara/htdocs/import/index.php:314
  do_import() at /var/www/mahara/htdocs/import/index.php:71
  [DBG] f7 (import/leap/lib.php:1774) Warning: fixref was expecting one artefact to have been imported by entry portfolio:artefact110 but seems to have gotten 0

  
  This needs some investigation to see what the $artefact variable contains at the time count is called on it:
   $artefacts = $this->get_artefactids_imported_by_entryid($hrefsrc);
          if (is_null($artefacts) || count($artefacts) != 1) {
              // This can happen if a Leap2A xml file is uploaded that refers to
              // files that (naturally) weren't uploaded with it.
              log_debug("Warning: fixref was expecting one artefact to have been imported by entry {$hrefsrc} but seems to have gotten " . count($artefacts));
              return $hrefsrc;

  It looks like it probably contains a number, which won't work with PHP
  7.2 and later, it needs to be an array or object from memory. For more
  info see: https://www.php.net/manual/en/function.count.php

  Note: have not tested on 20.04 to see if this is a regression.

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