539 lines
16 KiB
PHP
539 lines
16 KiB
PHP
<?php
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namespace Doctrine\DBAL\Schema;
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use Doctrine\DBAL\Exception\DriverException;
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use Doctrine\DBAL\FetchMode;
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use Doctrine\DBAL\Platforms\PostgreSqlPlatform;
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use Doctrine\DBAL\Types\Type;
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use Doctrine\DBAL\Types\Types;
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use function array_change_key_case;
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use function array_filter;
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use function array_keys;
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use function array_map;
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use function array_shift;
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use function assert;
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use function explode;
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use function implode;
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use function in_array;
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use function preg_match;
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use function preg_replace;
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use function sprintf;
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use function str_replace;
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use function strlen;
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use function strpos;
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use function strtolower;
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use function trim;
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use const CASE_LOWER;
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/**
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* PostgreSQL Schema Manager.
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*/
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class PostgreSqlSchemaManager extends AbstractSchemaManager
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{
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/** @var string[] */
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private $existingSchemaPaths;
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/**
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* Gets all the existing schema names.
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*
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* @return string[]
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*/
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public function getSchemaNames()
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{
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$statement = $this->_conn->executeQuery(
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"SELECT nspname FROM pg_namespace WHERE nspname !~ '^pg_.*' AND nspname != 'information_schema'"
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);
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return $statement->fetchAll(FetchMode::COLUMN);
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}
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/**
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* Returns an array of schema search paths.
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*
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* This is a PostgreSQL only function.
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*
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* @return string[]
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*/
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public function getSchemaSearchPaths()
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{
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$params = $this->_conn->getParams();
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$searchPaths = $this->_conn->fetchColumn('SHOW search_path');
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assert($searchPaths !== false);
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$schema = explode(',', $searchPaths);
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if (isset($params['user'])) {
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$schema = str_replace('"$user"', $params['user'], $schema);
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}
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return array_map('trim', $schema);
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}
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/**
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* Gets names of all existing schemas in the current users search path.
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*
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* This is a PostgreSQL only function.
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*
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* @return string[]
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*/
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public function getExistingSchemaSearchPaths()
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{
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if ($this->existingSchemaPaths === null) {
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$this->determineExistingSchemaSearchPaths();
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}
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return $this->existingSchemaPaths;
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}
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/**
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* Sets or resets the order of the existing schemas in the current search path of the user.
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*
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* This is a PostgreSQL only function.
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*
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* @return void
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*/
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public function determineExistingSchemaSearchPaths()
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{
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$names = $this->getSchemaNames();
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$paths = $this->getSchemaSearchPaths();
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$this->existingSchemaPaths = array_filter($paths, static function ($v) use ($names) {
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return in_array($v, $names);
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});
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}
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/**
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* {@inheritdoc}
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*/
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public function dropDatabase($database)
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{
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try {
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parent::dropDatabase($database);
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} catch (DriverException $exception) {
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// If we have a SQLSTATE 55006, the drop database operation failed
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// because of active connections on the database.
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// To force dropping the database, we first have to close all active connections
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// on that database and issue the drop database operation again.
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if ($exception->getSQLState() !== '55006') {
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throw $exception;
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}
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assert($this->_platform instanceof PostgreSqlPlatform);
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$this->_execSql(
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[
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$this->_platform->getDisallowDatabaseConnectionsSQL($database),
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$this->_platform->getCloseActiveDatabaseConnectionsSQL($database),
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]
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);
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parent::dropDatabase($database);
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}
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableTableForeignKeyDefinition($tableForeignKey)
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{
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$onUpdate = null;
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$onDelete = null;
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$localColumns = [];
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$foreignColumns = [];
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$foreignTable = null;
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if (preg_match('(ON UPDATE ([a-zA-Z0-9]+( (NULL|ACTION|DEFAULT))?))', $tableForeignKey['condef'], $match)) {
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$onUpdate = $match[1];
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}
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if (preg_match('(ON DELETE ([a-zA-Z0-9]+( (NULL|ACTION|DEFAULT))?))', $tableForeignKey['condef'], $match)) {
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$onDelete = $match[1];
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}
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$result = preg_match('/FOREIGN KEY \((.+)\) REFERENCES (.+)\((.+)\)/', $tableForeignKey['condef'], $values);
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assert($result === 1);
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// PostgreSQL returns identifiers that are keywords with quotes, we need them later, don't get
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// the idea to trim them here.
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$localColumns = array_map('trim', explode(',', $values[1]));
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$foreignColumns = array_map('trim', explode(',', $values[3]));
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$foreignTable = $values[2];
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return new ForeignKeyConstraint(
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$localColumns,
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$foreignTable,
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$foreignColumns,
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$tableForeignKey['conname'],
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['onUpdate' => $onUpdate, 'onDelete' => $onDelete]
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);
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableTriggerDefinition($trigger)
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{
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return $trigger['trigger_name'];
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableViewDefinition($view)
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{
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return new View($view['schemaname'] . '.' . $view['viewname'], $view['definition']);
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableUserDefinition($user)
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{
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return [
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'user' => $user['usename'],
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'password' => $user['passwd'],
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];
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableTableDefinition($table)
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{
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$schemas = $this->getExistingSchemaSearchPaths();
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$firstSchema = array_shift($schemas);
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if ($table['schema_name'] === $firstSchema) {
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return $table['table_name'];
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}
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return $table['schema_name'] . '.' . $table['table_name'];
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}
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/**
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* {@inheritdoc}
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*
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* @link http://ezcomponents.org/docs/api/trunk/DatabaseSchema/ezcDbSchemaPgsqlReader.html
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*/
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protected function _getPortableTableIndexesList($tableIndexes, $tableName = null)
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{
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$buffer = [];
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foreach ($tableIndexes as $row) {
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$colNumbers = array_map('intval', explode(' ', $row['indkey']));
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$columnNameSql = sprintf(
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'SELECT attnum, attname FROM pg_attribute WHERE attrelid=%d AND attnum IN (%s) ORDER BY attnum ASC',
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$row['indrelid'],
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implode(' ,', $colNumbers)
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);
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$indexColumns = $this->_conn->fetchAllAssociative($columnNameSql);
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// required for getting the order of the columns right.
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foreach ($colNumbers as $colNum) {
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foreach ($indexColumns as $colRow) {
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if ($colNum !== $colRow['attnum']) {
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continue;
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}
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$buffer[] = [
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'key_name' => $row['relname'],
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'column_name' => trim($colRow['attname']),
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'non_unique' => ! $row['indisunique'],
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'primary' => $row['indisprimary'],
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'where' => $row['where'],
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];
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}
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}
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}
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return parent::_getPortableTableIndexesList($buffer, $tableName);
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableDatabaseDefinition($database)
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{
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return $database['datname'];
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableSequencesList($sequences)
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{
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$sequenceDefinitions = [];
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foreach ($sequences as $sequence) {
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if ($sequence['schemaname'] !== 'public') {
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$sequenceName = $sequence['schemaname'] . '.' . $sequence['relname'];
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} else {
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$sequenceName = $sequence['relname'];
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}
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$sequenceDefinitions[$sequenceName] = $sequence;
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}
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$list = [];
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foreach ($this->filterAssetNames(array_keys($sequenceDefinitions)) as $sequenceName) {
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$list[] = $this->_getPortableSequenceDefinition($sequenceDefinitions[$sequenceName]);
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}
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return $list;
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}
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/**
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* {@inheritdoc}
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*/
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protected function getPortableNamespaceDefinition(array $namespace)
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{
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return $namespace['nspname'];
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableSequenceDefinition($sequence)
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{
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if ($sequence['schemaname'] !== 'public') {
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$sequenceName = $sequence['schemaname'] . '.' . $sequence['relname'];
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} else {
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$sequenceName = $sequence['relname'];
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}
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if (! isset($sequence['increment_by'], $sequence['min_value'])) {
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/** @var string[] $data */
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$data = $this->_conn->fetchAssoc(
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'SELECT min_value, increment_by FROM ' . $this->_platform->quoteIdentifier($sequenceName)
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);
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$sequence += $data;
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}
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return new Sequence($sequenceName, (int) $sequence['increment_by'], (int) $sequence['min_value']);
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}
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/**
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* {@inheritdoc}
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*/
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protected function _getPortableTableColumnDefinition($tableColumn)
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{
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$tableColumn = array_change_key_case($tableColumn, CASE_LOWER);
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if (strtolower($tableColumn['type']) === 'varchar' || strtolower($tableColumn['type']) === 'bpchar') {
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// get length from varchar definition
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$length = preg_replace('~.*\(([0-9]*)\).*~', '$1', $tableColumn['complete_type']);
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$tableColumn['length'] = $length;
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}
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$matches = [];
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$autoincrement = false;
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if ($tableColumn['default'] !== null && preg_match("/^nextval\('(.*)'(::.*)?\)$/", $tableColumn['default'], $matches)) {
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$tableColumn['sequence'] = $matches[1];
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$tableColumn['default'] = null;
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$autoincrement = true;
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}
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if ($tableColumn['default'] !== null) {
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if (preg_match("/^['(](.*)[')]::/", $tableColumn['default'], $matches)) {
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$tableColumn['default'] = $matches[1];
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} elseif (preg_match('/^NULL::/', $tableColumn['default'])) {
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$tableColumn['default'] = null;
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}
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}
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$length = $tableColumn['length'] ?? null;
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if ($length === '-1' && isset($tableColumn['atttypmod'])) {
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$length = $tableColumn['atttypmod'] - 4;
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}
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if ((int) $length <= 0) {
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$length = null;
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}
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$fixed = null;
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if (! isset($tableColumn['name'])) {
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$tableColumn['name'] = '';
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}
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$precision = null;
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$scale = null;
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$jsonb = null;
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$dbType = strtolower($tableColumn['type']);
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if ($tableColumn['domain_type'] !== null
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&& strlen($tableColumn['domain_type'])
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&& ! $this->_platform->hasDoctrineTypeMappingFor($tableColumn['type'])
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) {
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$dbType = strtolower($tableColumn['domain_type']);
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$tableColumn['complete_type'] = $tableColumn['domain_complete_type'];
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}
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$type = $this->_platform->getDoctrineTypeMapping($dbType);
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$type = $this->extractDoctrineTypeFromComment($tableColumn['comment'], $type);
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$tableColumn['comment'] = $this->removeDoctrineTypeFromComment($tableColumn['comment'], $type);
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switch ($dbType) {
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case 'smallint':
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case 'int2':
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$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
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$length = null;
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break;
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case 'int':
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case 'int4':
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case 'integer':
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$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
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$length = null;
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break;
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case 'bigint':
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case 'int8':
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$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
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$length = null;
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break;
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case 'bool':
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case 'boolean':
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if ($tableColumn['default'] === 'true') {
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$tableColumn['default'] = true;
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}
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if ($tableColumn['default'] === 'false') {
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$tableColumn['default'] = false;
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}
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$length = null;
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break;
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case 'text':
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case '_varchar':
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case 'varchar':
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$tableColumn['default'] = $this->parseDefaultExpression($tableColumn['default']);
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$fixed = false;
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break;
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case 'interval':
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$fixed = false;
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break;
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case 'char':
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case 'bpchar':
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$fixed = true;
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break;
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case 'float':
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case 'float4':
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case 'float8':
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case 'double':
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case 'double precision':
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case 'real':
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case 'decimal':
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case 'money':
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case 'numeric':
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$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
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if (preg_match('([A-Za-z]+\(([0-9]+)\,([0-9]+)\))', $tableColumn['complete_type'], $match)) {
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$precision = $match[1];
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$scale = $match[2];
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$length = null;
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}
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break;
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case 'year':
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$length = null;
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break;
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// PostgreSQL 9.4+ only
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case 'jsonb':
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$jsonb = true;
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break;
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}
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if ($tableColumn['default'] !== null && $tableColumn['default'] && preg_match("('([^']+)'::)", $tableColumn['default'], $match)) {
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$tableColumn['default'] = $match[1];
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}
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$options = [
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'length' => $length,
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'notnull' => (bool) $tableColumn['isnotnull'],
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'default' => $tableColumn['default'],
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'precision' => $precision,
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'scale' => $scale,
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'fixed' => $fixed,
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'unsigned' => false,
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'autoincrement' => $autoincrement,
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'comment' => isset($tableColumn['comment']) && $tableColumn['comment'] !== ''
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? $tableColumn['comment']
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: null,
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];
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$column = new Column($tableColumn['field'], Type::getType($type), $options);
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if (isset($tableColumn['collation']) && ! empty($tableColumn['collation'])) {
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$column->setPlatformOption('collation', $tableColumn['collation']);
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}
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if (in_array($column->getType()->getName(), [Types::JSON_ARRAY, Types::JSON], true)) {
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$column->setPlatformOption('jsonb', $jsonb);
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}
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return $column;
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}
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/**
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* PostgreSQL 9.4 puts parentheses around negative numeric default values that need to be stripped eventually.
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*
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* @param mixed $defaultValue
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*
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* @return mixed
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*/
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private function fixVersion94NegativeNumericDefaultValue($defaultValue)
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{
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if ($defaultValue !== null && strpos($defaultValue, '(') === 0) {
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return trim($defaultValue, '()');
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}
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return $defaultValue;
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}
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/**
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* Parses a default value expression as given by PostgreSQL
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*/
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private function parseDefaultExpression(?string $default): ?string
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{
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if ($default === null) {
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return $default;
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}
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return str_replace("''", "'", $default);
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}
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/**
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* {@inheritdoc}
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*/
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public function listTableDetails($name): Table
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{
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$table = parent::listTableDetails($name);
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$platform = $this->_platform;
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assert($platform instanceof PostgreSqlPlatform);
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$sql = $platform->getListTableMetadataSQL($name);
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$tableOptions = $this->_conn->fetchAssoc($sql);
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if ($tableOptions !== false) {
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$table->addOption('comment', $tableOptions['table_comment']);
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}
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return $table;
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}
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}
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