protected function dropColumn()
{
$restore = $this->getRestoreFileName();
if (Sabel_Db_Migration_Manager::isUpgrade()) {
if (is_file($restore)) {
unlink($restore);
}
$columns = $this->getReader()->readDropColumn()->getColumns();
$schema = $this->getSchema()->getTable($this->tblName);
$sColumns = $schema->getColumns();
$writer = new Sabel_Db_Migration_Writer($restore);
$writer->writeColumns($schema, $columns);
$writer->close();
foreach ($columns as $column) {
if (isset($sColumns[$column])) {
unset($sColumns[$column]);
} else {
$warning = "column '{$column}' does not exist. (SKIP)";
Sabel_Console::warning($warning);
}
}
$this->dropColumnsAndRemakeTable($sColumns, $schema);
} else {
$columns = $this->getReader($restore)->readAddColumn()->getColumns();
$this->execAddColumn($columns);
}
}
public function execute()
{
if (Sabel_Db_Migration_Manager::isUpgrade()) {
$queries = $this->upgradeQueries;
} else {
$queries = $this->downgradeQueries;
}
$stmt = Sabel_Db_Migration_Manager::getStatement();
foreach ($queries as $query) {
$stmt->setQuery($query)->execute();
}
}
protected function addColumn()
{
$columns = $this->getReader()->readAddColumn()->getColumns();
if (Sabel_Db_Migration_Manager::isUpgrade()) {
$this->execAddColumn($columns);
} else {
$tblName = convert_to_tablename($this->mdlName);
$quotedTblName = $this->quoteIdentifier($tblName);
foreach ($columns as $column) {
$this->dropDefaultConstraint($tblName, $column->name);
$colName = $this->quoteIdentifier($column->name);
$this->executeQuery("ALTER TABLE {$tblName} DROP COLUMN {$colName}");
}
}
}
protected function drop()
{
$restore = $this->getRestoreFileName();
if (Sabel_Db_Migration_Manager::isUpgrade()) {
if (is_file($restore)) {
unlink($restore);
}
$schema = $this->getSchema()->getTable($this->tblName);
$writer = new Sabel_Db_Migration_Writer($restore);
$writer->writeTable($schema)->close();
$this->executeQuery("DROP TABLE " . $this->quoteIdentifier($this->tblName));
$this->dropSequence($schema->getSequenceColumn());
} else {
$this->createTable($restore);
}
}
public function drop()
{
if (Sabel_Db_Migration_Manager::isUpgrade()) {
$restore = $this->getRestoreFileName();
if (is_file($restore)) {
unlink($restore);
}
$schema = $this->getSchema();
$tblSchema = $schema->getTable($this->tblName);
$engine = $schema->getTableEngine($this->tblName);
$writer = new Sabel_Db_Migration_Writer($restore);
$writer->writeTable($tblSchema);
$writer->write('$create->options("engine", "' . $engine . '");');
$writer->write(PHP_EOL)->close();
$this->executeQuery("DROP TABLE " . $this->quoteIdentifier($this->tblName));
} else {
$this->createTable($this->getRestoreFileName());
}
}
protected function changeColumn()
{
$schema = $this->getSchema()->getTable($this->tblName);
$restore = $this->getRestoreFileName();
if (Sabel_Db_Migration_Manager::isUpgrade()) {
if (is_file($restore)) {
unlink($restore);
}
$names = array();
$columns = $this->getReader()->readChangeColumn()->getColumns();
foreach ($columns as $column) {
$names[] = $column->name;
}
$writer = new Sabel_Db_Migration_Writer($restore);
$writer->writeColumns($schema, $names, '$change')->close();
$this->changeColumnUpgrade($columns, $schema);
} else {
$columns = $this->getReader($restore)->readChangeColumn()->getColumns();
$this->changeColumnDowngrade($columns, $schema);
}
}