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[Robert Lyon <robertl@xxxxxxxxxxxxxxx>]

** Changed in: mahara
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1595408

Title:
  Export a page with comments raises an error

Status in Mahara:
  Fix Released

Bug description:
  Mahara: 16.04.1
  DB: Postgres
  Browser: Firefox
  OS: Linux

  When exporting a page with comments, the following error occurs:

  <div class="backtrace">[WAR] 2b (artefact/comment/lib.php:899) Missing
  argument 1 for ArtefactTypeComment::render_self(), called in /var/www
  /mahara-site/artefact/comment/export/leap/lib.php on line 66 and
  defined</div>

  <div class="backtrace"><strong>Call stack (most recent
  first):</strong> <ul><li><span style="color:#933;"></span><span
  style="color:#060;"></span><span
  style="color:#339;">log_message</span><span
  style="color:#060;">(</span><span style="color:#f00;">&quot;Missing
  argument 1 for ArtefactTypeComment::render...&quot;, 8, true, true,
  &quot;/var/www/mahara-site/artefact/comment/lib.php&quot;,
  899</span><span style="color:#060;">)</span> at <strong>/var/www
  /mahara-site/lib/errors.php:489</strong></li><li><span
  style="color:#933;"></span><span style="color:#060;"></span><span
  style="color:#339;">error</span><span
  style="color:#060;">(</span><span style="color:#f00;">2, &quot;Missing
  argument 1 for ArtefactTypeComment::render...&quot;, &quot;/var/www
  /mahara-site/artefact/comment/lib.php&quot;, 899, array(size
  0)</span><span style="color:#060;">)</span> at <strong>/var/www
  /mahara-site/artefact/comment/lib.php:899</strong></li><li><span
  style="color:#933;">ArtefactTypeComment</span><span
  style="color:#060;">-&gt;</span><span
  style="color:#339;">render_self</span><span
  style="color:#060;">(</span><span style="color:#f00;"></span><span
  style="color:#060;">)</span> at <strong>/var/www/mahara-
  site/artefact/comment/export/leap/lib.php:66</strong></li><li><span
  style="color:#933;">LeapExportElementComment</span><span
  style="color:#060;">-&gt;</span><span
  style="color:#339;">get_content</span><span
  style="color:#060;">(</span><span style="color:#f00;"></span><span
  style="color:#060;">)</span> at <strong>/var/www/mahara-
  site/export/leap/lib.php:742</strong></li><li><span
  style="color:#933;">LeapExportElement</span><span
  style="color:#060;">-&gt;</span><span
  style="color:#339;">assign_smarty_vars</span><span
  style="color:#060;">(</span><span style="color:#f00;"></span><span
  style="color:#060;">)</span> at <strong>/var/www/mahara-
  site/export/leap/lib.php:555</strong></li><li><span
  style="color:#933;">PluginExportLeap</span><span
  style="color:#060;">-&gt;</span><span
  style="color:#339;">export_artefacts</span><span
  style="color:#060;">(</span><span style="color:#f00;"></span><span
  style="color:#060;">)</span> at <strong>/var/www/mahara-
  site/export/leap/lib.php:136</strong></li><li><span
  style="color:#933;">PluginExportLeap</span><span
  style="color:#060;">-&gt;</span><span
  style="color:#339;">export</span><span
  style="color:#060;">(</span><span style="color:#f00;"></span><span
  style="color:#060;">)</span> at <strong>/var/www/mahara-
  site/export/download.php:98</strong></li></div>

  
  Digging around. It's due to the call to the render_self() not including a variable - i.e. array() - when nothing is to be passed to the function.

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