removed unnecessary setting of NULL string fields to '', in hotpot_update_to_v2_1_21.

diff --git a/mod/hotpot/db/update_to_v2.php b/mod/hotpot/db/update_to_v2.php
index df6662362303c48c304a11354773106e104a95e0..4b8441eb216a3c555764f127981bfcc2da523a53 100644 (file)
--- a/mod/hotpot/db/update_to_v2.php
+++ b/mod/hotpot/db/update_to_v2.php
@@ -61,7 +61,6 @@ function hotpot_update_to_v2_1_21() {
         // ensure setting of default values on certain fields
         // this was originally done in postgres7.php, but was found to be incompatible with PG7 :-(
         $table="hotpot";
-        execute_sql("UPDATE {$CFG->prefix}$table SET studentfeedbackurl = '' WHERE studentfeedbackurl IS NULL");
         $ok = $ok && hotpot_db_update_field_type($table, '', 'studentfeedbackurl', 'VARCHAR', 255, '',         'NOT NULL', '');
         $ok = $ok && hotpot_db_update_field_type($table, '', 'studentfeedback',    'INTEGER', 4,   'UNSIGNED', 'NOT NULL', 0);
         $ok = $ok && hotpot_db_update_field_type($table, '', 'clickreporting',     'INTEGER', 4,   'UNSIGNED', 'NOT NULL', 0);
@@ -78,9 +77,7 @@ function hotpot_update_to_v2_1_21() {
         $ok = $ok && hotpot_db_update_field_type($table, '', 'score',     'INTEGER', 4,   'UNSIGNED', 'NOT NULL', 0);
         $ok = $ok && hotpot_db_update_field_type($table, '', 'weighting', 'INTEGER', 4,   'UNSIGNED', 'NOT NULL', 0);
         $ok = $ok && hotpot_db_update_field_type($table, '', 'correct',   'VARCHAR', 255, '',         'NOT NULL', '');
-        execute_sql("UPDATE {$CFG->prefix}$table SET wrong = '' WHERE wrong IS NULL");
         $ok = $ok && hotpot_db_update_field_type($table, '', 'wrong',     'VARCHAR', 255, '',         'NOT NULL', '');
-        execute_sql("UPDATE {$CFG->prefix}$table SET ignored = '' WHERE ignored IS NULL");
         $ok = $ok && hotpot_db_update_field_type($table, '', 'ignored',   'VARCHAR', 255, '',         'NOT NULL', '');
         $ok = $ok && hotpot_db_update_field_type($table, '', 'hints',     'INTEGER', 4,   'UNSIGNED', 'NOT NULL', 0);
         $ok = $ok && hotpot_db_update_field_type($table, '', 'clues',     'INTEGER', 4,   'UNSIGNED', 'NOT NULL', 0);