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[Robert Lyon <robertl@xxxxxxxxxxxxxxx>]

Public bug reported:

Older sites can end up with  multiple rows in the
blocktype_externalfeed_data due to an earlier (now fixed) problem

This causes problem when one tries to add a new rss feed block to a page
if there is more than one row in the db of the same feed url.

[WAR] bc (lib/errors.php:752) get_record_sql found more than one row. If you meant to retrieve more than one record, use get_records_*, otherwise check your code or database for inconsistencies
Call stack (most recent first):

    log_message("get_record_sql found more than one row. If you mea...", 8, true, true) at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/lib/errors.php:109
    log_warn("get_record_sql found more than one row. If you mea...") at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/lib/errors.php:752
    SQLException->__construct("get_record_sql found more than one row. If you mea...") at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/lib/dml.php:347
    get_record_sql("SELECT * FROM "blocktype_externalfeed_data" WHERE ...", array(size 3)) at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/lib/dml.php:365
    get_record_select("blocktype_externalfeed_data", ""url" = ? AND "authuser" = ? AND "authpassword" ...", array(size 3)) at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/lib/dml.php:1143
    ensure_record_exists("blocktype_externalfeed_data", array(size 3), object(stdClass), "id", true) at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/blocktype/externalfeed/lib.php:274
    PluginBlocktypeExternalfeed::instance_config_save(array(size 9), object(BlockInstance)) at Unknown:0


To sort this out we are going to need a script in the the lib/db/upgrade.php to handle the clearing out of the duplicate rows and making sure the block instance configdata now points to the 1 row left in the db.

** Affects: mahara
     Importance: High
         Status: New


** Tags: data

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https://bugs.launchpad.net/bugs/1239461

Title:
  External feed has duplicate rows causing problems

Status in Mahara ePortfolio:
  New

Bug description:
  Older sites can end up with  multiple rows in the
  blocktype_externalfeed_data due to an earlier (now fixed) problem

  This causes problem when one tries to add a new rss feed block to a
  page if there is more than one row in the db of the same feed url.

  [WAR] bc (lib/errors.php:752) get_record_sql found more than one row. If you meant to retrieve more than one record, use get_records_*, otherwise check your code or database for inconsistencies
  Call stack (most recent first):

      log_message("get_record_sql found more than one row. If you mea...", 8, true, true) at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/lib/errors.php:109
      log_warn("get_record_sql found more than one row. If you mea...") at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/lib/errors.php:752
      SQLException->__construct("get_record_sql found more than one row. If you mea...") at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/lib/dml.php:347
      get_record_sql("SELECT * FROM "blocktype_externalfeed_data" WHERE ...", array(size 3)) at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/lib/dml.php:365
      get_record_select("blocktype_externalfeed_data", ""url" = ? AND "authuser" = ? AND "authpassword" ...", array(size 3)) at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/lib/dml.php:1143
      ensure_record_exists("blocktype_externalfeed_data", array(size 3), object(stdClass), "id", true) at /var/www/myportfolio-school2-testing-mahara/releases/20131010191940/blocktype/externalfeed/lib.php:274
      PluginBlocktypeExternalfeed::instance_config_save(array(size 9), object(BlockInstance)) at Unknown:0

  
  To sort this out we are going to need a script in the the lib/db/upgrade.php to handle the clearing out of the duplicate rows and making sure the block instance configdata now points to the 1 row left in the db.

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