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<?php
/**
* This class is used to test database is well-constructed.
*/
class FreshRSS_DatabaseDAOPGSQL extends FreshRSS_DatabaseDAOSQLite {
//PostgreSQL error codes
const UNDEFINED_COLUMN = '42703';
const UNDEFINED_TABLE = '42P01';
public function tablesAreCorrect() {
$db = FreshRSS_Context::$system_conf->db;
$dbowner = $db['user'];
$sql = 'SELECT * FROM pg_catalog.pg_tables where tableowner=?';
$stm = $this->pdo->prepare($sql);
$values = array($dbowner);
$stm->execute($values);
$res = $stm->fetchAll(PDO::FETCH_ASSOC);
$tables = array(
$this->pdo->prefix() . 'category' => false,
$this->pdo->prefix() . 'feed' => false,
$this->pdo->prefix() . 'entry' => false,
$this->pdo->prefix() . 'entrytmp' => false,
$this->pdo->prefix() . 'tag' => false,
$this->pdo->prefix() . 'entrytag' => false,
);
foreach ($res as $value) {
$tables[array_pop($value)] = true;
}
return count(array_keys($tables, true, true)) == count($tables);
}
public function getSchema($table) {
$sql = 'select column_name as field, data_type as type, column_default as default, is_nullable as null from INFORMATION_SCHEMA.COLUMNS where table_name = ?';
$stm = $this->pdo->prepare($sql);
$stm->execute(array($this->pdo->prefix() . $table));
return $this->listDaoToSchema($stm->fetchAll(PDO::FETCH_ASSOC));
}
public function daoToSchema($dao) {
return array(
'name' => $dao['field'],
'type' => strtolower($dao['type']),
'notnull' => (bool)$dao['null'],
'default' => $dao['default'],
);
}
public function size($all = false) {
if ($all) {
$db = FreshRSS_Context::$system_conf->db;
$sql = 'SELECT pg_database_size(:base)';
$stm = $this->pdo->prepare($sql);
$stm->bindParam(':base', $db['base']);
$stm->execute();
} else {
$sql = "SELECT "
. "pg_total_relation_size('`{$this->pdo->prefix()}category`') + "
. "pg_total_relation_size('`{$this->pdo->prefix()}feed`') + "
. "pg_total_relation_size('`{$this->pdo->prefix()}entry`') + "
. "pg_total_relation_size('`{$this->pdo->prefix()}entrytmp`') + "
. "pg_total_relation_size('`{$this->pdo->prefix()}tag`') + "
. "pg_total_relation_size('`{$this->pdo->prefix()}entrytag`')";
$stm = $this->pdo->query($sql);
}
if ($stm == false) {
return 0;
}
$res = $stm->fetchAll(PDO::FETCH_COLUMN, 0);
return $res[0];
}
public function optimize() {
$ok = true;
$tables = array('category', 'feed', 'entry', 'entrytmp', 'tag', 'entrytag');
foreach ($tables as $table) {
$sql = 'VACUUM `_' . $table . '`';
$ok &= ($this->pdo->exec($sql) !== false);
}
return $ok;
}
}
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