/**
* Parses all rows in ALTER TABLE command.
*
* @param table table being parsed
* @param commands commands
*
* @throws ParserException Thrown if problem occured while parsing DDL.
*/
private static function parse_rows(&$db_doc, &$node_schema, &$node_table, $commands)
{
$line = $commands;
$subCommand = null;
while (strlen($line) > 0) {
$commandEnd = sql_parser::get_command_end($line, 0);
$subCommand = trim(substr($line, 0, $commandEnd));
$line = $commandEnd >= strlen($line) ? "" : substr($line, $commandEnd + 1);
if (strlen($subCommand) > 0) {
if (preg_match(self::PATTERN_ADD_CONSTRAINT_FOREIGN_KEY, $subCommand, $matches) > 0) {
$column_name = trim($matches[3]);
$constraint_name = trim($matches[1]);
$node_constraint = pgsql8_constraint::get_table_constraint($db_doc, $node_table, $constraint_name, true);
dbx::set_attribute($node_constraint, 'definition', trim($matches[2]));
$subCommand = "";
}
}
if (preg_match(self::PATTERN_ADD_CONSTRAINT, $subCommand, $matches) > 0) {
$constraint_name = trim($matches[1]);
$node_constraint = pgsql8_constraint::get_table_constraint($db_doc, $node_table, $constraint_name, true);
dbx::set_attribute($node_constraint, 'definition', trim($matches[2]));
$subCommand = "";
}
if (strlen($subCommand) > 0) {
if (preg_match(self::PATTERN_ADD_PRIMARY_KEY, $subCommand, $matches) > 0) {
$definition = trim($matches[1]);
$column_name = trim($matches[2]);
$constraint_name = $node_table['name'] . '_pkey';
dbx::set_attribute($node_table, 'primaryKey', $column_name);
$subCommand = "";
}
}
if (strlen($subCommand) > 0) {
if (preg_match(self::PATTERN_ADD_FOREIGN_KEY, $subCommand, $matches) > 0) {
$column_name = trim($matches[2]);
$constraint_name = pgsql8::identifier_name($node_schema['name'], $node_table['name'], $column_name, '_fkey');
$node_constraint = pgsql8_constraint::get_table_constraint($db_doc, $node_table, $constraint_name, true);
dbx::set_attribute($node_constraint, 'definition', trim($matches[1]));
$subCommand = "";
}
}
if (strlen($subCommand) > 0) {
if (preg_match(self::PATTERN_SET_DEFAULT, $subCommand, $matches) > 0) {
$column_name = trim($matches[1]);
$default_value = trim($matches[2]);
if ($node_table->contains_column($column_name)) {
$node_column =& dbx::get_column($node_table, $column_name);
dbx::set_attribute($node_column, 'default', $default_value);
} else {
throw new exception("Cannot find column '" . $column_name . " 'in table '" . $node_table['name'] . "'");
}
$subCommand = "";
}
}
if (preg_match(self::PATTERN_ALTER_COLUMN_STATISTICS, $subCommand, $matches) > 0) {
$column_name = trim($matches[2]);
$value = trim($matches[3]);
$node_column =& dbx::get_column($node_table, $column_name);
dbx::set_attribute($node_column, 'statistics', $value);
$subCommand = "";
}
if (preg_match(self::PATTERN_CLUSTER_ON, $subCommand, $matches) > 0) {
$indexName = trim($matches[1]);
dbx::set_attribute($node_column, 'clusterIndexName', $indexName);
$subCommand = "";
}
if (strlen($subCommand) > 0) {
if (preg_match(self::PATTERN_TRIGGER, $subCommand, $matches) > 0) {
$triggerName = trim($matches[2]);
throw new exception("@TODO: do something with ALTER TABLE ... ENABLE / DISABLE trigger statements");
$subCommand = "";
}
}
if (strlen($subCommand) > 0) {
throw new exception("Don't know how to parse: " . $subCommand);
}
}
}