silverstripe-environmentcheck/code/checks/DatabaseCheck.php

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<?php
/**
* This file contains a number of default environment checks that you can use.
*/
/**
* Check that the connection to the database is working, by ensuring that the table exists and that
* the table contain some records.
* By default, Member will be checked.
*
* @param $checkTable The table that will be checked.
*/
class DatabaseCheck implements EnvironmentCheck {
protected $checkTable;
function __construct($checkTable = "Member") {
$this->checkTable = $checkTable;
}
function check() {
if(!DB::getConn()->hasTable($this->checkTable)) {
return array(EnvironmentCheck::ERROR, "$this->checkTable not present in the database");
}
$count = DB::query("SELECT COUNT(*) FROM \"$this->checkTable\"")->value();
if($count > 0) {
return array(EnvironmentCheck::OK, "");
} else {
return array(EnvironmentCheck::WARNING, "$this->checkTable queried ok but has no records");
}
}
}