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[Robert Lyon <robertl@xxxxxxxxxxxxxxx>]

This problem is due to the a blogpost embedded image being embedded
correctly now and so isn't an attached child, but there is a bit of code
to remove the attached images that fails.

We need to keep this code but check if there is any results returned.

The problem is fixed in 15.10 already - so I'll make a fix for 15.04

** Changed in: mahara/15.10
       Status: Confirmed => Invalid

** Changed in: mahara/15.04
       Status: New => In Progress

** Changed in: mahara/15.04
   Importance: Undecided => High

** Changed in: mahara/15.04
     Assignee: (unassigned) => Robert Lyon (robertl-9)

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https://bugs.launchpad.net/bugs/1489284

Title:
  Warning message when deleting a blog

Status in Mahara:
  Invalid
Status in Mahara 15.04 series:
  In Progress
Status in Mahara 15.10 series:
  Invalid

Bug description:
  I noticed this warning message when deleting a journal. I'm not sure
  whether the journal has to have embedded images in an entry or not,
  but here's what I did.

  1. Create a journal
  2. Create a journal entry
  3. Use the TinyMCE image button to embed an image in the journal entry
  4. Select the journal entry in a journal entry block on a page
  5. Delete the page
  6. Delete the journal

  Result:

  [WAR] 75 (lib/embeddedimage.php:176) Invalid argument supplied for foreach()
  Call stack (most recent first):

      log_message("Invalid argument supplied for foreach()", 8, true, true, "/home/aaronw/www/mahara/htdocs/lib/embeddedimage.p...", 176) at /home/aaronw/www/mahara/htdocs/lib/errors.php:441
      error(2, "Invalid argument supplied for foreach()", "/home/aaronw/www/mahara/htdocs/lib/embeddedimage.p...", 176, array(size 3)) at /home/aaronw/www/mahara/htdocs/lib/embeddedimage.php:176
      EmbeddedImage::delete_embedded_images("blog", "58") at /home/aaronw/www/mahara/htdocs/artefact/blog/index.php:56
      delete_blog_submit(object(Pieform), array(size 3)) at Unknown:0
      call_user_func_array("delete_blog_submit", array(size 2)) at /home/aaronw/www/mahara/htdocs/lib/pieforms/pieform.php:532
      Pieform->__construct(array(size 4)) at /home/aaronw/www/mahara/htdocs/lib/pieforms/pieform.php:162
      Pieform::process(array(size 4)) at /home/aaronw/www/mahara/htdocs/lib/pieforms/pieform.php:71
      pieform(array(size 4)) at /home/aaronw/www/mahara/htdocs/artefact/blog/lib.php:461
      ArtefactTypeBlog::delete_form(58) at /home/aaronw/www/mahara/htdocs/artefact/blog/index.php:28

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