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MDL-41756 (2) quiz statistics : break down question stats by variant

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This commit is contained in:
James Pratt 2013-11-30 18:50:15 +07:00
parent aa05ae5da3
commit 1239d28776
11 changed files with 649 additions and 483 deletions
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1
lib/db/install.xml
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@ -1476,6 +1476,7 @@
<FIELD NAME="questionid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
<FIELD NAME="slot" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false" COMMENT="The position in the quiz where this question appears"/>
<FIELD NAME="subquestion" TYPE="int" LENGTH="4" NOTNULL="true" SEQUENCE="false"/>
<FIELD NAME="variant" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
<FIELD NAME="s" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
<FIELD NAME="effectiveweight" TYPE="number" LENGTH="15" NOTNULL="false" SEQUENCE="false" DECIMALS="5"/>
<FIELD NAME="negcovar" TYPE="int" LENGTH="2" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>

15
lib/db/upgrade.php
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@ -2927,5 +2927,20 @@ function xmldb_main_upgrade($oldversion) {
upgrade_main_savepoint(true, 2014011701.00);
}
if ($oldversion < 2014012300.01) {
// Define field variant to be added to question_statistics.
$table = new xmldb_table('question_statistics');
$field = new xmldb_field('variant', XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'subquestion');
// Conditionally launch add field variant.
if (!$dbman->field_exists($table, $field)) {
$dbman->add_field($table, $field);
}
// Main savepoint reached.
upgrade_main_savepoint(true, 2014012300.01);
}
return true;
}