/**
* Create temporary tables to speed up log generation
*/
function stats_temp_table_create()
{
global $CFG, $DB;
$dbman = $DB->get_manager();
// We are going to use database_manager services
stats_temp_table_drop();
$tables = array();
/// Define tables user to be created
$table = new xmldb_table('temp_stats_daily');
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('courseid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('timeend', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('roleid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('stattype', XMLDB_TYPE_CHAR, 20, null, XMLDB_NOTNULL, null, 'activity');
$table->add_field('stat1', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('stat2', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_index('courseid', XMLDB_INDEX_NOTUNIQUE, array('courseid'));
$table->add_index('timeend', XMLDB_INDEX_NOTUNIQUE, array('timeend'));
$table->add_index('roleid', XMLDB_INDEX_NOTUNIQUE, array('roleid'));
$tables['temp_stats_daily'] = $table;
$table = new xmldb_table('temp_stats_user_daily');
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('courseid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('userid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('roleid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('timeend', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('statsreads', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('statswrites', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('stattype', XMLDB_TYPE_CHAR, 30, null, XMLDB_NOTNULL, null, null);
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_index('courseid', XMLDB_INDEX_NOTUNIQUE, array('courseid'));
$table->add_index('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
$table->add_index('timeend', XMLDB_INDEX_NOTUNIQUE, array('timeend'));
$table->add_index('roleid', XMLDB_INDEX_NOTUNIQUE, array('roleid'));
$tables['temp_stats_user_daily'] = $table;
$table = new xmldb_table('temp_enroled');
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('userid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('courseid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('roleid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, null);
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_index('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
$table->add_index('courseid', XMLDB_INDEX_NOTUNIQUE, array('courseid'));
$table->add_index('roleid', XMLDB_INDEX_NOTUNIQUE, array('roleid'));
$tables['temp_enroled'] = $table;
$table = new xmldb_table('temp_log1');
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('userid', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('course', XMLDB_TYPE_INTEGER, 10, null, XMLDB_NOTNULL, null, '0');
$table->add_field('action', XMLDB_TYPE_CHAR, 40, null, XMLDB_NOTNULL, null, null);
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_index('action', XMLDB_INDEX_NOTUNIQUE, array('action'));
$table->add_index('course', XMLDB_INDEX_NOTUNIQUE, array('course'));
$table->add_index('user', XMLDB_INDEX_NOTUNIQUE, array('userid'));
$table->add_index('usercourseaction', XMLDB_INDEX_NOTUNIQUE, array('userid', 'course', 'action'));
$tables['temp_log1'] = $table;
/// temp_log2 is exactly the same as temp_log1.
$tables['temp_log2'] = clone $tables['temp_log1'];
$tables['temp_log2']->setName('temp_log2');
try {
foreach ($tables as $table) {
$dbman->create_temp_table($table);
}
} catch (Exception $e) {
mtrace('Temporary table creation failed: ' . $e->getMessage());
return false;
}
return true;
}
/**
* Create temporary tables to speed up log generation
*/
function stats_temp_table_create()
{
global $CFG, $DB;
$dbman = $DB->get_manager();
// We are going to use database_manager services
stats_temp_table_drop();
$xmlfile = $CFG->dirroot . '/lib/db/install.xml';
$tables = array();
// Allows for the additional xml files to be used (if necessary)
$files = array($xmlfile => array('stats_daily' => array('temp_stats_daily'), 'stats_user_daily' => array('temp_stats_user_daily'), 'temp_enroled_template' => array('temp_enroled'), 'temp_log_template' => array('temp_log1', 'temp_log2')));
foreach ($files as $file => $contents) {
$xmldb_file = new xmldb_file($file);
if (!$xmldb_file->fileExists()) {
throw new ddl_exception('ddlxmlfileerror', null, 'File does not exist');
}
$loaded = $xmldb_file->loadXMLStructure();
if (!$loaded || !$xmldb_file->isLoaded()) {
throw new ddl_exception('ddlxmlfileerror', null, 'not loaded??');
}
$xmldb_structure = $xmldb_file->getStructure();
foreach ($contents as $template => $names) {
$table = $xmldb_structure->getTable($template);
if (is_null($table)) {
throw new ddl_exception('ddlunknowntable', null, 'The table ' . $name . ' is not defined in the file ' . $xmlfile);
}
$table->setNext(null);
$table->setPrevious(null);
foreach ($names as $name) {
$named = clone $table;
$named->setName($name);
$tables[$name] = $named;
}
}
}
try {
foreach ($tables as $table) {
$dbman->create_temp_table($table);
}
} catch (Exception $e) {
mtrace('Temporary table creation failed: ' . $e->getMessage());
return false;
}
return true;
}
/**
* Test the function that clean out the temporary tables.
*
* @depends test_statslib_temp_table_create_and_drop
*/
public function test_statslib_temp_table_clean()
{
global $DB;
$rows = array('temp_log1' => array('id' => 1, 'course' => 1), 'temp_log2' => array('id' => 1, 'course' => 1), 'temp_stats_daily' => array('id' => 1, 'courseid' => 1), 'temp_stats_user_daily' => array('id' => 1, 'courseid' => 1));
stats_temp_table_create();
foreach ($rows as $table => $row) {
$DB->insert_record_raw($table, $row);
$this->assertEquals(1, $DB->count_records($table));
}
stats_temp_table_clean();
foreach ($rows as $table => $row) {
$this->assertEquals(0, $DB->count_records($table));
}
$this->assertEquals(1, $DB->count_records('stats_daily'));
$this->assertEquals(1, $DB->count_records('stats_user_daily'));
stats_temp_table_drop();
}