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<?php
namespace Doctrine\DBAL\Schema;
use Doctrine\DBAL\Exception;
use Doctrine\DBAL\Platforms\PostgreSQLPlatform;
use Doctrine\DBAL\Result;
use Doctrine\DBAL\Types\JsonType;
use Doctrine\DBAL\Types\Type;
use Doctrine\DBAL\Types\Types;
use Doctrine\Deprecations\Deprecation;
use function array_change_key_case;
use function array_filter;
use function array_map;
use function array_merge;
use function array_shift;
use function assert;
use function explode;
use function get_class;
use function implode;
use function in_array;
use function preg_match;
use function preg_replace;
use function sprintf;
use function str_replace;
use function strpos;
use function strtolower;
use function trim;
use const CASE_LOWER;
/**
* PostgreSQL Schema Manager.
*
* @extends AbstractSchemaManager<PostgreSQLPlatform>
*/
class PostgreSQLSchemaManager extends AbstractSchemaManager
{
/** @var string[]|null */
private ?array $existingSchemaPaths = null;
/**
* {@inheritDoc}
*/
public function listTableNames()
{
return $this->doListTableNames();
}
/**
* {@inheritDoc}
*/
public function listTables()
{
return $this->doListTables();
}
/**
* {@inheritDoc}
*
* @deprecated Use {@see introspectTable()} instead.
*/
public function listTableDetails($name)
{
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5595',
'%s is deprecated. Use introspectTable() instead.',
__METHOD__,
);
return $this->doListTableDetails($name);
}
/**
* {@inheritDoc}
*/
public function listTableColumns($table, $database = null)
{
return $this->doListTableColumns($table, $database);
}
/**
* {@inheritDoc}
*/
public function listTableIndexes($table)
{
return $this->doListTableIndexes($table);
}
/**
* {@inheritDoc}
*/
public function listTableForeignKeys($table, $database = null)
{
return $this->doListTableForeignKeys($table, $database);
}
/**
* Gets all the existing schema names.
*
* @deprecated Use {@see listSchemaNames()} instead.
*
* @return string[]
*
* @throws Exception
*/
public function getSchemaNames()
{
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/issues/4503',
'PostgreSQLSchemaManager::getSchemaNames() is deprecated,'
. ' use PostgreSQLSchemaManager::listSchemaNames() instead.',
);
return $this->listNamespaceNames();
}
/**
* {@inheritDoc}
*/
public function listSchemaNames(): array
{
return $this->_conn->fetchFirstColumn(
<<<'SQL'
SELECT schema_name
FROM information_schema.schemata
WHERE schema_name NOT LIKE 'pg\_%'
AND schema_name != 'information_schema'
SQL,
);
}
/**
* {@inheritDoc}
*
* @deprecated
*/
public function getSchemaSearchPaths()
{
Deprecation::triggerIfCalledFromOutside(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/4821',
'PostgreSQLSchemaManager::getSchemaSearchPaths() is deprecated.',
);
$params = $this->_conn->getParams();
$searchPaths = $this->_conn->fetchOne('SHOW search_path');
assert($searchPaths !== false);
$schema = explode(',', $searchPaths);
if (isset($params['user'])) {
$schema = str_replace('"$user"', $params['user'], $schema);
}
return array_map('trim', $schema);
}
/**
* Gets names of all existing schemas in the current users search path.
*
* This is a PostgreSQL only function.
*
* @internal The method should be only used from within the PostgreSQLSchemaManager class hierarchy.
*
* @return string[]
*
* @throws Exception
*/
public function getExistingSchemaSearchPaths()
{
if ($this->existingSchemaPaths === null) {
$this->determineExistingSchemaSearchPaths();
}
assert($this->existingSchemaPaths !== null);
return $this->existingSchemaPaths;
}
/**
* Returns the name of the current schema.
*
* @return string|null
*
* @throws Exception
*/
protected function getCurrentSchema()
{
$schemas = $this->getExistingSchemaSearchPaths();
return array_shift($schemas);
}
/**
* Sets or resets the order of the existing schemas in the current search path of the user.
*
* This is a PostgreSQL only function.
*
* @internal The method should be only used from within the PostgreSQLSchemaManager class hierarchy.
*
* @return void
*
* @throws Exception
*/
public function determineExistingSchemaSearchPaths()
{
$names = $this->listSchemaNames();
$paths = $this->getSchemaSearchPaths();
$this->existingSchemaPaths = array_filter($paths, static function ($v) use ($names): bool {
return in_array($v, $names, true);
});
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableForeignKeyDefinition($tableForeignKey)
{
$onUpdate = null;
$onDelete = null;
if (
preg_match(
'(ON UPDATE ([a-zA-Z0-9]+( (NULL|ACTION|DEFAULT))?))',
$tableForeignKey['condef'],
$match,
) === 1
) {
$onUpdate = $match[1];
}
if (
preg_match(
'(ON DELETE ([a-zA-Z0-9]+( (NULL|ACTION|DEFAULT))?))',
$tableForeignKey['condef'],
$match,
) === 1
) {
$onDelete = $match[1];
}
$result = preg_match('/FOREIGN KEY \((.+)\) REFERENCES (.+)\((.+)\)/', $tableForeignKey['condef'], $values);
assert($result === 1);
// PostgreSQL returns identifiers that are keywords with quotes, we need them later, don't get
// the idea to trim them here.
$localColumns = array_map('trim', explode(',', $values[1]));
$foreignColumns = array_map('trim', explode(',', $values[3]));
$foreignTable = $values[2];
return new ForeignKeyConstraint(
$localColumns,
$foreignTable,
$foreignColumns,
$tableForeignKey['conname'],
['onUpdate' => $onUpdate, 'onDelete' => $onDelete],
);
}
/**
* {@inheritdoc}
*/
protected function _getPortableViewDefinition($view)
{
return new View($view['schemaname'] . '.' . $view['viewname'], $view['definition']);
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableDefinition($table)
{
$currentSchema = $this->getCurrentSchema();
if ($table['schema_name'] === $currentSchema) {
return $table['table_name'];
}
return $table['schema_name'] . '.' . $table['table_name'];
}
/**
* {@inheritdoc}
*
* @link http://ezcomponents.org/docs/api/trunk/DatabaseSchema/ezcDbSchemaPgsqlReader.html
*/
protected function _getPortableTableIndexesList($tableIndexes, $tableName = null)
{
$buffer = [];
foreach ($tableIndexes as $row) {
$colNumbers = array_map('intval', explode(' ', $row['indkey']));
$columnNameSql = sprintf(
'SELECT attnum, attname FROM pg_attribute WHERE attrelid=%d AND attnum IN (%s) ORDER BY attnum ASC',
$row['indrelid'],
implode(' ,', $colNumbers),
);
$indexColumns = $this->_conn->fetchAllAssociative($columnNameSql);
// required for getting the order of the columns right.
foreach ($colNumbers as $colNum) {
foreach ($indexColumns as $colRow) {
if ($colNum !== $colRow['attnum']) {
continue;
}
$buffer[] = [
'key_name' => $row['relname'],
'column_name' => trim($colRow['attname']),
'non_unique' => ! $row['indisunique'],
'primary' => $row['indisprimary'],
'where' => $row['where'],
];
}
}
}
return parent::_getPortableTableIndexesList($buffer, $tableName);
}
/**
* {@inheritdoc}
*/
protected function _getPortableDatabaseDefinition($database)
{
return $database['datname'];
}
/**
* {@inheritdoc}
*
* @deprecated Use {@see listSchemaNames()} instead.
*/
protected function getPortableNamespaceDefinition(array $namespace)
{
Deprecation::triggerIfCalledFromOutside(
'doctrine/dbal',
'https://github.com/doctrine/dbal/issues/4503',
'PostgreSQLSchemaManager::getPortableNamespaceDefinition() is deprecated,'
. ' use PostgreSQLSchemaManager::listSchemaNames() instead.',
);
return $namespace['nspname'];
}
/**
* {@inheritdoc}
*/
protected function _getPortableSequenceDefinition($sequence)
{
if ($sequence['schemaname'] !== 'public') {
$sequenceName = $sequence['schemaname'] . '.' . $sequence['relname'];
} else {
$sequenceName = $sequence['relname'];
}
return new Sequence($sequenceName, (int) $sequence['increment_by'], (int) $sequence['min_value']);
}
/**
* {@inheritdoc}
*/
protected function _getPortableTableColumnDefinition($tableColumn)
{
$tableColumn = array_change_key_case($tableColumn, CASE_LOWER);
if (strtolower($tableColumn['type']) === 'varchar' || strtolower($tableColumn['type']) === 'bpchar') {
// get length from varchar definition
$length = preg_replace('~.*\(([0-9]*)\).*~', '$1', $tableColumn['complete_type']);
$tableColumn['length'] = $length;
}
$matches = [];
$autoincrement = false;
if (
$tableColumn['default'] !== null
&& preg_match("/^nextval\('(.*)'(::.*)?\)$/", $tableColumn['default'], $matches) === 1
) {
$tableColumn['sequence'] = $matches[1];
$tableColumn['default'] = null;
$autoincrement = true;
}
if ($tableColumn['default'] !== null) {
if (preg_match("/^['(](.*)[')]::/", $tableColumn['default'], $matches) === 1) {
$tableColumn['default'] = $matches[1];
} elseif (preg_match('/^NULL::/', $tableColumn['default']) === 1) {
$tableColumn['default'] = null;
}
}
$length = $tableColumn['length'] ?? null;
if ($length === '-1' && isset($tableColumn['atttypmod'])) {
$length = $tableColumn['atttypmod'] - 4;
}
if ((int) $length <= 0) {
$length = null;
}
$fixed = null;
if (! isset($tableColumn['name'])) {
$tableColumn['name'] = '';
}
$precision = null;
$scale = null;
$jsonb = null;
$dbType = strtolower($tableColumn['type']);
if (
$tableColumn['domain_type'] !== null
&& $tableColumn['domain_type'] !== ''
&& ! $this->_platform->hasDoctrineTypeMappingFor($tableColumn['type'])
) {
$dbType = strtolower($tableColumn['domain_type']);
$tableColumn['complete_type'] = $tableColumn['domain_complete_type'];
}
$type = $this->_platform->getDoctrineTypeMapping($dbType);
$type = $this->extractDoctrineTypeFromComment($tableColumn['comment'], $type);
$tableColumn['comment'] = $this->removeDoctrineTypeFromComment($tableColumn['comment'], $type);
switch ($dbType) {
case 'smallint':
case 'int2':
$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
$length = null;
break;
case 'int':
case 'int4':
case 'integer':
$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
$length = null;
break;
case 'bigint':
case 'int8':
$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
$length = null;
break;
case 'bool':
case 'boolean':
if ($tableColumn['default'] === 'true') {
$tableColumn['default'] = true;
}
if ($tableColumn['default'] === 'false') {
$tableColumn['default'] = false;
}
$length = null;
break;
case 'text':
case '_varchar':
case 'varchar':
$tableColumn['default'] = $this->parseDefaultExpression($tableColumn['default']);
$fixed = false;
break;
case 'interval':
$fixed = false;
break;
case 'char':
case 'bpchar':
$fixed = true;
break;
case 'float':
case 'float4':
case 'float8':
case 'double':
case 'double precision':
case 'real':
case 'decimal':
case 'money':
case 'numeric':
$tableColumn['default'] = $this->fixVersion94NegativeNumericDefaultValue($tableColumn['default']);
if (
preg_match(
'([A-Za-z]+\(([0-9]+),([0-9]+)\))',
$tableColumn['complete_type'],
$match,
) === 1
) {
$precision = $match[1];
$scale = $match[2];
$length = null;
}
break;
case 'year':
$length = null;
break;
// PostgreSQL 9.4+ only
case 'jsonb':
$jsonb = true;
break;
}
if (
$tableColumn['default'] !== null && preg_match(
"('([^']+)'::)",
$tableColumn['default'],
$match,
) === 1
) {
$tableColumn['default'] = $match[1];
}
$options = [
'length' => $length,
'notnull' => (bool) $tableColumn['isnotnull'],
'default' => $tableColumn['default'],
'precision' => $precision,
'scale' => $scale,
'fixed' => $fixed,
'unsigned' => false,
'autoincrement' => $autoincrement,
'comment' => isset($tableColumn['comment']) && $tableColumn['comment'] !== ''
? $tableColumn['comment']
: null,
];
$column = new Column($tableColumn['field'], Type::getType($type), $options);
if (isset($tableColumn['collation']) && ! empty($tableColumn['collation'])) {
$column->setPlatformOption('collation', $tableColumn['collation']);
}
if ($column->getType()->getName() === Types::JSON) {
if (! $column->getType() instanceof JsonType) {
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5049',
<<<'DEPRECATION'
%s not extending %s while being named %s is deprecated,
and will lead to jsonb never to being used in 4.0.,
DEPRECATION,
get_class($column->getType()),
JsonType::class,
Types::JSON,
);
}
$column->setPlatformOption('jsonb', $jsonb);
}
return $column;
}
/**
* PostgreSQL 9.4 puts parentheses around negative numeric default values that need to be stripped eventually.
*
* @param mixed $defaultValue
*
* @return mixed
*/
private function fixVersion94NegativeNumericDefaultValue($defaultValue)
{
if ($defaultValue !== null && strpos($defaultValue, '(') === 0) {
return trim($defaultValue, '()');
}
return $defaultValue;
}
/**
* Parses a default value expression as given by PostgreSQL
*/
private function parseDefaultExpression(?string $default): ?string
{
if ($default === null) {
return $default;
}
return str_replace("''", "'", $default);
}
protected function selectTableNames(string $databaseName): Result
{
$sql = <<<'SQL'
SELECT quote_ident(table_name) AS table_name,
table_schema AS schema_name
FROM information_schema.tables
WHERE table_catalog = ?
AND table_schema NOT LIKE 'pg\_%'
AND table_schema != 'information_schema'
AND table_name != 'geometry_columns'
AND table_name != 'spatial_ref_sys'
AND table_type = 'BASE TABLE'
SQL;
return $this->_conn->executeQuery($sql, [$databaseName]);
}
protected function selectTableColumns(string $databaseName, ?string $tableName = null): Result
{
$sql = 'SELECT';
if ($tableName === null) {
$sql .= ' c.relname AS table_name, n.nspname AS schema_name,';
}
$sql .= <<<'SQL'
a.attnum,
quote_ident(a.attname) AS field,
t.typname AS type,
format_type(a.atttypid, a.atttypmod) AS complete_type,
(SELECT tc.collcollate FROM pg_catalog.pg_collation tc WHERE tc.oid = a.attcollation) AS collation,
(SELECT t1.typname FROM pg_catalog.pg_type t1 WHERE t1.oid = t.typbasetype) AS domain_type,
(SELECT format_type(t2.typbasetype, t2.typtypmod) FROM
pg_catalog.pg_type t2 WHERE t2.typtype = 'd' AND t2.oid = a.atttypid) AS domain_complete_type,
a.attnotnull AS isnotnull,
(SELECT 't'
FROM pg_index
WHERE c.oid = pg_index.indrelid
AND pg_index.indkey[0] = a.attnum
AND pg_index.indisprimary = 't'
) AS pri,
(SELECT pg_get_expr(adbin, adrelid)
FROM pg_attrdef
WHERE c.oid = pg_attrdef.adrelid
AND pg_attrdef.adnum=a.attnum
) AS default,
(SELECT pg_description.description
FROM pg_description WHERE pg_description.objoid = c.oid AND a.attnum = pg_description.objsubid
) AS comment
FROM pg_attribute a
INNER JOIN pg_class c
ON c.oid = a.attrelid
INNER JOIN pg_type t
ON t.oid = a.atttypid
INNER JOIN pg_namespace n
ON n.oid = c.relnamespace
LEFT JOIN pg_depend d
ON d.objid = c.oid
AND d.deptype = 'e'
AND d.classid = (SELECT oid FROM pg_class WHERE relname = 'pg_class')
SQL;
$conditions = array_merge([
'a.attnum > 0',
"c.relkind = 'r'",
'd.refobjid IS NULL',
], $this->buildQueryConditions($tableName));
$sql .= ' WHERE ' . implode(' AND ', $conditions) . ' ORDER BY a.attnum';
return $this->_conn->executeQuery($sql);
}
protected function selectIndexColumns(string $databaseName, ?string $tableName = null): Result
{
$sql = 'SELECT';
if ($tableName === null) {
$sql .= ' tc.relname AS table_name, tn.nspname AS schema_name,';
}
$sql .= <<<'SQL'
quote_ident(ic.relname) AS relname,
i.indisunique,
i.indisprimary,
i.indkey,
i.indrelid,
pg_get_expr(indpred, indrelid) AS "where"
FROM pg_index i
JOIN pg_class AS tc ON tc.oid = i.indrelid
JOIN pg_namespace tn ON tn.oid = tc.relnamespace
JOIN pg_class AS ic ON ic.oid = i.indexrelid
WHERE ic.oid IN (
SELECT indexrelid
FROM pg_index i, pg_class c, pg_namespace n
SQL;
$conditions = array_merge([
'c.oid = i.indrelid',
'c.relnamespace = n.oid',
], $this->buildQueryConditions($tableName));
$sql .= ' WHERE ' . implode(' AND ', $conditions) . ')';
return $this->_conn->executeQuery($sql);
}
protected function selectForeignKeyColumns(string $databaseName, ?string $tableName = null): Result
{
$sql = 'SELECT';
if ($tableName === null) {
$sql .= ' tc.relname AS table_name, tn.nspname AS schema_name,';
}
$sql .= <<<'SQL'
quote_ident(r.conname) as conname,
pg_get_constraintdef(r.oid, true) as condef
FROM pg_constraint r
JOIN pg_class AS tc ON tc.oid = r.conrelid
JOIN pg_namespace tn ON tn.oid = tc.relnamespace
WHERE r.conrelid IN
(
SELECT c.oid
FROM pg_class c, pg_namespace n
SQL;
$conditions = array_merge(['n.oid = c.relnamespace'], $this->buildQueryConditions($tableName));
$sql .= ' WHERE ' . implode(' AND ', $conditions) . ") AND r.contype = 'f'";
return $this->_conn->executeQuery($sql);
}
/**
* {@inheritDoc}
*/
protected function fetchTableOptionsByTable(string $databaseName, ?string $tableName = null): array
{
$sql = <<<'SQL'
SELECT c.relname,
obj_description(c.oid, 'pg_class') AS comment
FROM pg_class c
INNER JOIN pg_namespace n
ON n.oid = c.relnamespace
SQL;
$conditions = array_merge(["c.relkind = 'r'"], $this->buildQueryConditions($tableName));
$sql .= ' WHERE ' . implode(' AND ', $conditions);
return $this->_conn->fetchAllAssociativeIndexed($sql);
}
/**
* @param string|null $tableName
*
* @return list<string>
*/
private function buildQueryConditions($tableName): array
{
$conditions = [];
if ($tableName !== null) {
if (strpos($tableName, '.') !== false) {
[$schemaName, $tableName] = explode('.', $tableName);
$conditions[] = 'n.nspname = ' . $this->_platform->quoteStringLiteral($schemaName);
} else {
$conditions[] = 'n.nspname = ANY(current_schemas(false))';
}
$identifier = new Identifier($tableName);
$conditions[] = 'c.relname = ' . $this->_platform->quoteStringLiteral($identifier->getName());
}
$conditions[] = "n.nspname NOT IN ('pg_catalog', 'information_schema', 'pg_toast')";
return $conditions;
}
}
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