diff --git a/mod/quiz/report/statistics/db/install.xml b/mod/quiz/report/statistics/db/install.xml
index 700023aba31..b44b0ebd0f9 100644
--- a/mod/quiz/report/statistics/db/install.xml
+++ b/mod/quiz/report/statistics/db/install.xml
@@ -13,15 +13,15 @@
-
-
-
-
+
+
+
+
-
-
+
+
@@ -34,14 +34,14 @@
-
+
-
-
+
+
-
+
@@ -57,7 +57,7 @@
-
+
diff --git a/mod/quiz/report/statistics/db/upgrade.php b/mod/quiz/report/statistics/db/upgrade.php
index 0d6795d7c58..f4e4764b12d 100644
--- a/mod/quiz/report/statistics/db/upgrade.php
+++ b/mod/quiz/report/statistics/db/upgrade.php
@@ -160,6 +160,74 @@ function xmldb_quiz_statistics_upgrade($oldversion) {
upgrade_plugin_savepoint(true, 2008112100, 'quizreport', 'statistics');
}
+ if ($oldversion < 2008112101) {
+ // Removed stupid UNSIGNED from all NUMBER columns in the quiz_statistics table.
+ $table = new xmldb_table('quiz_statistics');
+
+ // Change of sign for field firstattemptsavg
+ $field = new xmldb_field('firstattemptsavg', XMLDB_TYPE_NUMBER, '15, 5', null, null, null, null, 'allattemptscount');
+ $dbman->change_field_unsigned($table, $field);
+
+ // Change of sign for field allattemptsavg
+ $field = new xmldb_field('allattemptsavg', XMLDB_TYPE_NUMBER, '15, 5', null, null, null, null, 'firstattemptsavg');
+ $dbman->change_field_unsigned($table, $field);
+
+ // Change of sign for field median
+ $field = new xmldb_field('median', XMLDB_TYPE_NUMBER, '15, 5', null, null, null, null, 'allattemptsavg');
+ $dbman->change_field_unsigned($table, $field);
+
+ // Change of sign for field standarddeviation
+ $field = new xmldb_field('standarddeviation', XMLDB_TYPE_NUMBER, '15, 5', null, null, null, null, 'median');
+ $dbman->change_field_unsigned($table, $field);
+
+ // Change of sign for field errorratio
+ $field = new xmldb_field('errorratio', XMLDB_TYPE_NUMBER, '15, 10', null, null, null, null, 'cic');
+ $dbman->change_field_unsigned($table, $field);
+
+ // Change of sign for field standarderror
+ $field = new xmldb_field('standarderror', XMLDB_TYPE_NUMBER, '15, 10', null, null, null, null, 'errorratio');
+ $dbman->change_field_unsigned($table, $field);
+
+ // statistics savepoint reached
+ upgrade_plugin_savepoint(true, 2008112101, 'quiz', 'statistics');
+ }
+
+ if ($oldversion < 2008112102) {
+ // Removed stupid UNSIGNED from all NUMBER columns in the quiz_question_statistics table.
+ $table = new xmldb_table('quiz_question_statistics');
+
+ // Change of sign for field effectiveweight
+ $field = new xmldb_field('effectiveweight', XMLDB_TYPE_NUMBER, '15, 5', null, null, null, null, 's');
+ $dbman->change_field_unsigned($table, $field);
+
+ // Change of sign for field sd
+ $field = new xmldb_field('sd', XMLDB_TYPE_NUMBER, '15, 10', null, null, null, null, 'discriminativeefficiency');
+ $dbman->change_field_unsigned($table, $field);
+
+ // Change of sign for field facility
+ $field = new xmldb_field('facility', XMLDB_TYPE_NUMBER, '15, 10', null, null, null, null, 'sd');
+ $dbman->change_field_unsigned($table, $field);
+
+ // Change of sign for field maxgrade
+ $field = new xmldb_field('maxgrade', XMLDB_TYPE_NUMBER, '12, 7', null, null, null, null, 'subquestions');
+ $dbman->change_field_unsigned($table, $field);
+
+ // statistics savepoint reached
+ upgrade_plugin_savepoint(true, 2008112102, 'quiz', 'statistics');
+ }
+
+ if ($oldversion < 2008112103) {
+ // Removed stupid UNSIGNED from all NUMBER columns in the quiz_question_response_stats table.
+ $table = new xmldb_table('quiz_question_response_stats');
+
+ // Change of sign for field credit
+ $field = new xmldb_field('credit', XMLDB_TYPE_NUMBER, '15, 5', null, null, null, null, 'rcount');
+ $dbman->change_field_unsigned($table, $field);
+
+ // statistics savepoint reached
+ upgrade_plugin_savepoint(true, 2008112103, 'quiz', 'statistics');
+ }
+
return true;
}
diff --git a/mod/quiz/report/statistics/version.php b/mod/quiz/report/statistics/version.php
index 8d23da59eae..464cbbe3ebe 100644
--- a/mod/quiz/report/statistics/version.php
+++ b/mod/quiz/report/statistics/version.php
@@ -1,2 +1,2 @@
version = 2008112100; // The (date) version of this module
+$plugin->version = 2008112103; // The (date) version of this module