public function getTableDefinition($tableName)
{
$tableSymbol = new Symbol($tableName);
$res = $this->database->query("DESC ?", $tableSymbol);
$columns = new \stdClass();
while ($row = $res->fetchRow()) {
$type = $row['Type'];
$field = $row['Field'];
$phpType = $this->getTypeByString($type);
if ('auto_increment' === $row['Extra']) {
$phpType += Column::AUTO_ID;
}
$column = new Column($phpType);
$columns->{$field} = $column;
$column->schemaName = $field;
$notNull = $row['Null'] === 'NO';
if ($row['Default'] !== null || !$notNull) {
$column->setDefault($row['Default']);
}
$column->setFlag(Column::NOT_NULL, $notNull);
}
$definition = new Table($columns, $this->database, $tableName);
$res = $this->database->query("SHOW INDEX FROM ?", $tableSymbol);
$indexes = array();
$uniqueIndex = array();
foreach ($res as $row) {
$indexes[$row['Key_name']][$row['Seq_in_index']] = $columns->{$row['Column_name']};
$uniqueIndex[$row['Key_name']] = !$row['Non_unique'];
}
foreach ($indexes as $indexName => $indexData) {
ksort($indexData);
$index = new Index(array_values($indexData));
$index->setName($indexName);
$index->setType($uniqueIndex[$indexName] ? Index::TYPE_UNIQUE : Index::TYPE_KEY);
if ($indexName === self::_PRIMARY) {
$definition->setPrimaryKey($index->columns);
} else {
$definition->addIndex($index);
}
}
return $definition;
}
public function dropTable($tableName)
{
$this->database->query($this->generateDropTable($tableName));
}