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[Robert Lyon <robertl@xxxxxxxxxxxxxxx>]

This patch (or parts of it) will need to be backported to earlier
branches as client customers on earlier versions have been
confused/frustrated with the deletion of an institution not working.

** Changed in: mahara
    Milestone: None => 1.10.0

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https://bugs.launchpad.net/bugs/1314440

Title:
  Deleting an institution which has user's registrations causes error

Status in Mahara ePortfolio:
  In Progress

Bug description:
  Version: master(1.10)
  Platform: all

  When deleting an institution which contains some registrations, I got
  the following error:

    [WAR] a6 (lib/errors.php:739) Failed to get a recordset: postgres7 error: [-1: ERROR:  update or delete on table "institution" violates foreign key constraint "usrregi_ins_fk" on table "usr_registration"
  DETAIL:  Key (name)=(instone) is still referenced from table "usr_registration".] in adodb_throw(DELETE FROM "institution"  WHERE "name" = ? , Array)
  Command was: DELETE FROM "institution"  WHERE "name" = ?  and values was (instone)
  Call stack (most recent first):
  log_message("Failed to get a recordset: postgres7 error: [-1: E...", 8, true, true) at /home/sonn/code/mahara/master/htdocs/lib/errors.php:95
  log_warn("Failed to get a recordset: postgres7 error: [-1: E...") at /home/sonn/code/mahara/master/htdocs/lib/errors.php:739
  SQLException->__construct("Failed to get a recordset: postgres7 error: [-1: E...") at /home/sonn/code/mahara/master/htdocs/lib/dml.php:925
  delete_records("institution", "name", "instone") at /home/sonn/code/mahara/master/htdocs/admin/users/institutions.php:162
  delete_submit(object(Pieform), array(size 4)) at Unknown:0
  call_user_func_array("delete_submit", array(size 2)) at /home/sonn/code/mahara/master/htdocs/lib/pieforms/pieform.php:527
  Pieform->__construct(array(size 2)) at /home/sonn/code/mahara/master/htdocs/lib/pieforms/pieform.php:162
  Pieform::process(array(size 2)) at /home/sonn/code/mahara/master/htdocs/lib/pieforms/pieform.php:71
  pieform(array(size 2)) at /home/sonn/code/mahara/master/htdocs/admin/users/institutions.php:185
  [WAR] a6 (lib/dml.php:925) Failed to get a recordset: postgres7 error: [-1: ERROR:  update or delete on table "institution" violates foreign key constraint "usrregi_ins_fk" on table "usr_registration"
  DETAIL:  Key (name)=(instone) is still referenced from table "usr_registration".] in adodb_throw(DELETE FROM "institution"  WHERE "name" = ? , Array)
  Command was: DELETE FROM "institution"  WHERE "name" = ?  and values was (instone)
  Call stack (most recent first):
  delete_records("institution", "name", "instone") at /home/sonn/code/mahara/master/htdocs/admin/users/institutions.php:162
  delete_submit(object(Pieform), array(size 4)) at Unknown:0
  call_user_func_array("delete_submit", array(size 2)) at /home/sonn/code/mahara/master/htdocs/lib/pieforms/pieform.php:527
  Pieform->__construct(array(size 2)) at /home/sonn/code/mahara/master/htdocs/lib/pieforms/pieform.php:162
  Pieform::process(array(size 2)) at /home/sonn/code/mahara/master/htdocs/lib/pieforms/pieform.php:71
  pieform(array(size 2)) at /home/sonn/code/mahara/master/htdocs/admin/users/institutions.php:185

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