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<?php
namespace Doctrine\DBAL\Platforms;
use Doctrine\DBAL\Connection;
use Doctrine\DBAL\Driver\API\SQLite\UserDefinedFunctions;
use Doctrine\DBAL\Exception;
use Doctrine\DBAL\Schema\Column;
use Doctrine\DBAL\Schema\Constraint;
use Doctrine\DBAL\Schema\ForeignKeyConstraint;
use Doctrine\DBAL\Schema\Identifier;
use Doctrine\DBAL\Schema\Index;
use Doctrine\DBAL\Schema\SchemaException;
use Doctrine\DBAL\Schema\SqliteSchemaManager;
use Doctrine\DBAL\Schema\Table;
use Doctrine\DBAL\Schema\TableDiff;
use Doctrine\DBAL\TransactionIsolationLevel;
use Doctrine\DBAL\Types;
use Doctrine\DBAL\Types\IntegerType;
use Doctrine\Deprecations\Deprecation;
use function array_combine;
use function array_keys;
use function array_merge;
use function array_search;
use function array_unique;
use function array_values;
use function count;
use function implode;
use function is_numeric;
use function sprintf;
use function sqrt;
use function str_replace;
use function strlen;
use function strtolower;
use function trim;
/**
* The SqlitePlatform class describes the specifics and dialects of the SQLite
* database platform.
*
* @todo Rename: SQLitePlatform
*/
class SqlitePlatform extends AbstractPlatform
{
private bool $schemaEmulationEnabled = true;
/**
* {@inheritDoc}
*/
public function getRegexpExpression()
{
return 'REGEXP';
}
/**
* @deprecated Generate dates within the application.
*
* @param string $type
*
* @return string
*/
public function getNowExpression($type = 'timestamp')
{
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/4753',
'SqlitePlatform::getNowExpression() is deprecated. Generate dates within the application.',
);
switch ($type) {
case 'time':
return 'time(\'now\')';
case 'date':
return 'date(\'now\')';
case 'timestamp':
default:
return 'datetime(\'now\')';
}
}
/**
* {@inheritDoc}
*/
public function getModExpression($expression1, $expression2)
{
return $expression1 . ' % ' . $expression2;
}
/**
* {@inheritDoc}
*/
public function getTrimExpression($str, $mode = TrimMode::UNSPECIFIED, $char = false)
{
$trimChar = $char !== false ? ', ' . $char : '';
switch ($mode) {
case TrimMode::LEADING:
$trimFn = 'LTRIM';
break;
case TrimMode::TRAILING:
$trimFn = 'RTRIM';
break;
default:
$trimFn = 'TRIM';
}
return $trimFn . '(' . $str . $trimChar . ')';
}
/**
* {@inheritDoc}
*
* SQLite only supports the 2 parameter variant of this function
*/
public function getSubstringExpression($string, $start, $length = null)
{
if ($length !== null) {
return 'SUBSTR(' . $string . ', ' . $start . ', ' . $length . ')';
}
return 'SUBSTR(' . $string . ', ' . $start . ', LENGTH(' . $string . '))';
}
/**
* {@inheritDoc}
*/
public function getLocateExpression($str, $substr, $startPos = false)
{
if ($startPos === false || $startPos === 1 || $startPos === '1') {
return 'INSTR(' . $str . ', ' . $substr . ')';
}
return 'CASE WHEN INSTR(SUBSTR(' . $str . ', ' . $startPos . '), ' . $substr
. ') > 0 THEN INSTR(SUBSTR(' . $str . ', ' . $startPos . '), ' . $substr . ') + ' . $startPos
. ' - 1 ELSE 0 END';
}
/**
* {@inheritDoc}
*/
protected function getDateArithmeticIntervalExpression($date, $operator, $interval, $unit)
{
switch ($unit) {
case DateIntervalUnit::SECOND:
case DateIntervalUnit::MINUTE:
case DateIntervalUnit::HOUR:
return 'DATETIME(' . $date . ",'" . $operator . $interval . ' ' . $unit . "')";
}
switch ($unit) {
case DateIntervalUnit::WEEK:
$interval *= 7;
$unit = DateIntervalUnit::DAY;
break;
case DateIntervalUnit::QUARTER:
$interval *= 3;
$unit = DateIntervalUnit::MONTH;
break;
}
if (! is_numeric($interval)) {
$interval = "' || " . $interval . " || '";
}
return 'DATE(' . $date . ",'" . $operator . $interval . ' ' . $unit . "')";
}
/**
* {@inheritDoc}
*/
public function getDateDiffExpression($date1, $date2)
{
return sprintf("JULIANDAY(%s, 'start of day') - JULIANDAY(%s, 'start of day')", $date1, $date2);
}
/**
* {@inheritDoc}
*
* The DBAL doesn't support databases on the SQLite platform. The expression here always returns a fixed string
* as an indicator of an implicitly selected database.
*
* @link https://www.sqlite.org/lang_select.html
* @see Connection::getDatabase()
*/
public function getCurrentDatabaseExpression(): string
{
return "'main'";
}
/**
* {@inheritDoc}
*/
protected function _getTransactionIsolationLevelSQL($level)
{
switch ($level) {
case TransactionIsolationLevel::READ_UNCOMMITTED:
return '0';
case TransactionIsolationLevel::READ_COMMITTED:
case TransactionIsolationLevel::REPEATABLE_READ:
case TransactionIsolationLevel::SERIALIZABLE:
return '1';
default:
return parent::_getTransactionIsolationLevelSQL($level);
}
}
/**
* {@inheritDoc}
*/
public function getSetTransactionIsolationSQL($level)
{
return 'PRAGMA read_uncommitted = ' . $this->_getTransactionIsolationLevelSQL($level);
}
/**
* {@inheritDoc}
*
* @deprecated
*/
public function prefersIdentityColumns()
{
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/1519',
'SqlitePlatform::prefersIdentityColumns() is deprecated.',
);
return true;
}
/**
* {@inheritDoc}
*/
public function getBooleanTypeDeclarationSQL(array $column)
{
return 'BOOLEAN';
}
/**
* {@inheritDoc}
*/
public function getIntegerTypeDeclarationSQL(array $column)
{
return 'INTEGER' . $this->_getCommonIntegerTypeDeclarationSQL($column);
}
/**
* {@inheritDoc}
*/
public function getBigIntTypeDeclarationSQL(array $column)
{
// SQLite autoincrement is implicit for INTEGER PKs, but not for BIGINT columns
if (! empty($column['autoincrement'])) {
return $this->getIntegerTypeDeclarationSQL($column);
}
return 'BIGINT' . $this->_getCommonIntegerTypeDeclarationSQL($column);
}
/**
* @deprecated Use {@see getSmallIntTypeDeclarationSQL()} instead.
*
* @param array<string, mixed> $column
*
* @return string
*/
public function getTinyIntTypeDeclarationSQL(array $column)
{
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5511',
'%s is deprecated. Use getSmallIntTypeDeclarationSQL() instead.',
__METHOD__,
);
// SQLite autoincrement is implicit for INTEGER PKs, but not for TINYINT columns
if (! empty($column['autoincrement'])) {
return $this->getIntegerTypeDeclarationSQL($column);
}
return 'TINYINT' . $this->_getCommonIntegerTypeDeclarationSQL($column);
}
/**
* {@inheritDoc}
*/
public function getSmallIntTypeDeclarationSQL(array $column)
{
// SQLite autoincrement is implicit for INTEGER PKs, but not for SMALLINT columns
if (! empty($column['autoincrement'])) {
return $this->getIntegerTypeDeclarationSQL($column);
}
return 'SMALLINT' . $this->_getCommonIntegerTypeDeclarationSQL($column);
}
/**
* @deprecated Use {@see getIntegerTypeDeclarationSQL()} instead.
*
* @param array<string, mixed> $column
*
* @return string
*/
public function getMediumIntTypeDeclarationSQL(array $column)
{
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5511',
'%s is deprecated. Use getIntegerTypeDeclarationSQL() instead.',
__METHOD__,
);
// SQLite autoincrement is implicit for INTEGER PKs, but not for MEDIUMINT columns
if (! empty($column['autoincrement'])) {
return $this->getIntegerTypeDeclarationSQL($column);
}
return 'MEDIUMINT' . $this->_getCommonIntegerTypeDeclarationSQL($column);
}
/**
* {@inheritDoc}
*/
public function getDateTimeTypeDeclarationSQL(array $column)
{
return 'DATETIME';
}
/**
* {@inheritDoc}
*/
public function getDateTypeDeclarationSQL(array $column)
{
return 'DATE';
}
/**
* {@inheritDoc}
*/
public function getTimeTypeDeclarationSQL(array $column)
{
return 'TIME';
}
/**
* {@inheritDoc}
*/
protected function _getCommonIntegerTypeDeclarationSQL(array $column)
{
// sqlite autoincrement is only possible for the primary key
if (! empty($column['autoincrement'])) {
return ' PRIMARY KEY AUTOINCREMENT';
}
return ! empty($column['unsigned']) ? ' UNSIGNED' : '';
}
/**
* Disables schema emulation.
*
* Schema emulation is enabled by default to maintain backwards compatibility.
* Disable it to opt-in to the behavior of DBAL 4.
*
* @deprecated Will be removed in DBAL 4.0.
*/
public function disableSchemaEmulation(): void
{
$this->schemaEmulationEnabled = false;
}
private function emulateSchemaNamespacing(string $tableName): string
{
return $this->schemaEmulationEnabled
? str_replace('.', '__', $tableName)
: $tableName;
}
/**
* {@inheritDoc}
*
* @internal The method should be only used from within the {@see AbstractPlatform} class hierarchy.
*/
public function getForeignKeyDeclarationSQL(ForeignKeyConstraint $foreignKey)
{
return parent::getForeignKeyDeclarationSQL(new ForeignKeyConstraint(
$foreignKey->getQuotedLocalColumns($this),
$this->emulateSchemaNamespacing($foreignKey->getQuotedForeignTableName($this)),
$foreignKey->getQuotedForeignColumns($this),
$foreignKey->getName(),
$foreignKey->getOptions(),
));
}
/**
* {@inheritDoc}
*/
protected function _getCreateTableSQL($name, array $columns, array $options = [])
{
$name = $this->emulateSchemaNamespacing($name);
$queryFields = $this->getColumnDeclarationListSQL($columns);
if (isset($options['uniqueConstraints']) && ! empty($options['uniqueConstraints'])) {
foreach ($options['uniqueConstraints'] as $constraintName => $definition) {
$queryFields .= ', ' . $this->getUniqueConstraintDeclarationSQL($constraintName, $definition);
}
}
$queryFields .= $this->getNonAutoincrementPrimaryKeyDefinition($columns, $options);
if (isset($options['foreignKeys'])) {
foreach ($options['foreignKeys'] as $foreignKey) {
$queryFields .= ', ' . $this->getForeignKeyDeclarationSQL($foreignKey);
}
}
$tableComment = '';
if (isset($options['comment'])) {
$comment = trim($options['comment'], " '");
$tableComment = $this->getInlineTableCommentSQL($comment);
}
$query = ['CREATE TABLE ' . $name . ' ' . $tableComment . '(' . $queryFields . ')'];
if (isset($options['alter']) && $options['alter'] === true) {
return $query;
}
if (isset($options['indexes']) && ! empty($options['indexes'])) {
foreach ($options['indexes'] as $indexDef) {
$query[] = $this->getCreateIndexSQL($indexDef, $name);
}
}
if (isset($options['unique']) && ! empty($options['unique'])) {
foreach ($options['unique'] as $indexDef) {
$query[] = $this->getCreateIndexSQL($indexDef, $name);
}
}
return $query;
}
/**
* Generate a PRIMARY KEY definition if no autoincrement value is used
*
* @param mixed[][] $columns
* @param mixed[] $options
*/
private function getNonAutoincrementPrimaryKeyDefinition(array $columns, array $options): string
{
if (empty($options['primary'])) {
return '';
}
$keyColumns = array_unique(array_values($options['primary']));
foreach ($keyColumns as $keyColumn) {
if (! empty($columns[$keyColumn]['autoincrement'])) {
return '';
}
}
return ', PRIMARY KEY(' . implode(', ', $keyColumns) . ')';
}
/**
* {@inheritDoc}
*/
protected function getVarcharTypeDeclarationSQLSnippet($length, $fixed)
{
return $fixed ? ($length > 0 ? 'CHAR(' . $length . ')' : 'CHAR(255)')
: ($length > 0 ? 'VARCHAR(' . $length . ')' : 'TEXT');
}
/**
* {@inheritDoc}
*/
protected function getBinaryTypeDeclarationSQLSnippet($length, $fixed)
{
return 'BLOB';
}
/**
* {@inheritDoc}
*
* @deprecated
*/
public function getBinaryMaxLength()
{
Deprecation::triggerIfCalledFromOutside(
'doctrine/dbal',
'https://github.com/doctrine/dbal/issues/3263',
'SqlitePlatform::getBinaryMaxLength() is deprecated.',
);
return 0;
}
/**
* {@inheritDoc}
*
* @deprecated
*/
public function getBinaryDefaultLength()
{
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/issues/3263',
'Relying on the default binary column length is deprecated, specify the length explicitly.',
);
return 0;
}
/**
* {@inheritDoc}
*/
public function getClobTypeDeclarationSQL(array $column)
{
return 'CLOB';
}
/**
* @deprecated
*
* {@inheritDoc}
*/
public function getListTableConstraintsSQL($table)
{
$table = $this->emulateSchemaNamespacing($table);
return sprintf(
"SELECT sql FROM sqlite_master WHERE type='index' AND tbl_name = %s AND sql NOT NULL ORDER BY name",
$this->quoteStringLiteral($table),
);
}
/**
* @deprecated The SQL used for schema introspection is an implementation detail and should not be relied upon.
*
* {@inheritDoc}
*/
public function getListTableColumnsSQL($table, $database = null)
{
$table = $this->emulateSchemaNamespacing($table);
return sprintf('PRAGMA table_info(%s)', $this->quoteStringLiteral($table));
}
/**
* @deprecated The SQL used for schema introspection is an implementation detail and should not be relied upon.
*
* {@inheritDoc}
*/
public function getListTableIndexesSQL($table, $database = null)
{
$table = $this->emulateSchemaNamespacing($table);
return sprintf('PRAGMA index_list(%s)', $this->quoteStringLiteral($table));
}
/**
* @deprecated The SQL used for schema introspection is an implementation detail and should not be relied upon.
*
* {@inheritDoc}
*/
public function getListTablesSQL()
{
return 'SELECT name FROM sqlite_master'
. " WHERE type = 'table'"
. " AND name != 'sqlite_sequence'"
. " AND name != 'geometry_columns'"
. " AND name != 'spatial_ref_sys'"
. ' UNION ALL SELECT name FROM sqlite_temp_master'
. " WHERE type = 'table' ORDER BY name";
}
/**
* {@inheritDoc}
*
* @internal The method should be only used from within the {@see AbstractSchemaManager} class hierarchy.
*/
public function getListViewsSQL($database)
{
return "SELECT name, sql FROM sqlite_master WHERE type='view' AND sql NOT NULL";
}
/**
* {@inheritDoc}
*
* @internal The method should be only used from within the {@see AbstractPlatform} class hierarchy.
*/
public function getAdvancedForeignKeyOptionsSQL(ForeignKeyConstraint $foreignKey)
{
$query = parent::getAdvancedForeignKeyOptionsSQL($foreignKey);
if (! $foreignKey->hasOption('deferrable') || $foreignKey->getOption('deferrable') === false) {
$query .= ' NOT';
}
$query .= ' DEFERRABLE';
$query .= ' INITIALLY';
if ($foreignKey->hasOption('deferred') && $foreignKey->getOption('deferred') !== false) {
$query .= ' DEFERRED';
} else {
$query .= ' IMMEDIATE';
}
return $query;
}
/**
* {@inheritDoc}
*
* @deprecated
*/
public function supportsCreateDropDatabase()
{
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5513',
'%s is deprecated.',
__METHOD__,
);
return false;
}
/**
* {@inheritDoc}
*/
public function supportsIdentityColumns()
{
return true;
}
/**
* {@inheritDoc}
*
* @internal The method should be only used from within the {@see AbstractPlatform} class hierarchy.
*/
public function supportsColumnCollation()
{
return true;
}
/**
* {@inheritDoc}
*
* @internal The method should be only used from within the {@see AbstractPlatform} class hierarchy.
*/
public function supportsInlineColumnComments()
{
return true;
}
/**
* {@inheritDoc}
*/
public function getName()
{
Deprecation::triggerIfCalledFromOutside(
'doctrine/dbal',
'https://github.com/doctrine/dbal/issues/4749',
'SqlitePlatform::getName() is deprecated. Identify platforms by their class.',
);
return 'sqlite';
}
/**
* {@inheritDoc}
*/
public function getTruncateTableSQL($tableName, $cascade = false)
{
$tableIdentifier = new Identifier($tableName);
$tableName = $this->emulateSchemaNamespacing($tableIdentifier->getQuotedName($this));
return 'DELETE FROM ' . $tableName;
}
/**
* User-defined function for Sqlite that is used with PDO::sqliteCreateFunction().
*
* @deprecated The driver will use {@see sqrt()} in the next major release.
*
* @param int|float $value
*
* @return float
*/
public static function udfSqrt($value)
{
return sqrt($value);
}
/**
* User-defined function for Sqlite that implements MOD(a, b).
*
* @deprecated The driver will use {@see UserDefinedFunctions::mod()} in the next major release.
*
* @param int $a
* @param int $b
*
* @return int
*/
public static function udfMod($a, $b)
{
return UserDefinedFunctions::mod($a, $b);
}
/**
* @deprecated The driver will use {@see UserDefinedFunctions::locate()} in the next major release.
*
* @param string $str
* @param string $substr
* @param int $offset
*
* @return int
*/
public static function udfLocate($str, $substr, $offset = 0)
{
return UserDefinedFunctions::locate($str, $substr, $offset);
}
/**
* {@inheritDoc}
*/
public function getForUpdateSQL()
{
return '';
}
/**
* {@inheritDoc}
*
* @internal The method should be only used from within the {@see AbstractPlatform} class hierarchy.
*/
public function getInlineColumnCommentSQL($comment)
{
return '--' . str_replace("\n", "\n--", $comment) . "\n";
}
private function getInlineTableCommentSQL(string $comment): string
{
return $this->getInlineColumnCommentSQL($comment);
}
/**
* {@inheritDoc}
*/
protected function initializeDoctrineTypeMappings()
{
$this->doctrineTypeMapping = [
'bigint' => Types\Types::BIGINT,
'bigserial' => Types\Types::BIGINT,
'blob' => Types\Types::BLOB,
'boolean' => Types\Types::BOOLEAN,
'char' => Types\Types::STRING,
'clob' => Types\Types::TEXT,
'date' => Types\Types::DATE_MUTABLE,
'datetime' => Types\Types::DATETIME_MUTABLE,
'decimal' => Types\Types::DECIMAL,
'double' => Types\Types::FLOAT,
'double precision' => Types\Types::FLOAT,
'float' => Types\Types::FLOAT,
'image' => Types\Types::STRING,
'int' => Types\Types::INTEGER,
'integer' => Types\Types::INTEGER,
'longtext' => Types\Types::TEXT,
'longvarchar' => Types\Types::STRING,
'mediumint' => Types\Types::INTEGER,
'mediumtext' => Types\Types::TEXT,
'ntext' => Types\Types::STRING,
'numeric' => Types\Types::DECIMAL,
'nvarchar' => Types\Types::STRING,
'real' => Types\Types::FLOAT,
'serial' => Types\Types::INTEGER,
'smallint' => Types\Types::SMALLINT,
'text' => Types\Types::TEXT,
'time' => Types\Types::TIME_MUTABLE,
'timestamp' => Types\Types::DATETIME_MUTABLE,
'tinyint' => Types\Types::BOOLEAN,
'tinytext' => Types\Types::TEXT,
'varchar' => Types\Types::STRING,
'varchar2' => Types\Types::STRING,
];
}
/**
* {@inheritDoc}
*
* @deprecated Implement {@see createReservedKeywordsList()} instead.
*/
protected function getReservedKeywordsClass()
{
Deprecation::triggerIfCalledFromOutside(
'doctrine/dbal',
'https://github.com/doctrine/dbal/issues/4510',
'SqlitePlatform::getReservedKeywordsClass() is deprecated,'
. ' use SqlitePlatform::createReservedKeywordsList() instead.',
);
return Keywords\SQLiteKeywords::class;
}
/**
* {@inheritDoc}
*/
protected function getPreAlterTableIndexForeignKeySQL(TableDiff $diff)
{
return [];
}
/**
* {@inheritDoc}
*/
protected function getPostAlterTableIndexForeignKeySQL(TableDiff $diff)
{
$table = $diff->getOldTable();
if (! $table instanceof Table) {
throw new Exception(
'Sqlite platform requires for alter table the table diff with reference to original table schema',
);
}
$sql = [];
$tableName = $diff->getNewName();
if ($tableName === false) {
$tableName = $diff->getName($this);
}
foreach ($this->getIndexesInAlteredTable($diff, $table) as $index) {
if ($index->isPrimary()) {
continue;
}
$sql[] = $this->getCreateIndexSQL($index, $tableName->getQuotedName($this));
}
return $sql;
}
/**
* {@inheritDoc}
*/
protected function doModifyLimitQuery($query, $limit, $offset)
{
if ($limit === null && $offset > 0) {
return sprintf('%s LIMIT -1 OFFSET %d', $query, $offset);
}
return parent::doModifyLimitQuery($query, $limit, $offset);
}
/**
* {@inheritDoc}
*/
public function getBlobTypeDeclarationSQL(array $column)
{
return 'BLOB';
}
/**
* {@inheritDoc}
*/
public function getTemporaryTableName($tableName)
{
$tableName = $this->emulateSchemaNamespacing($tableName);
return $tableName;
}
/**
* {@inheritDoc}
*
* @deprecated
*
* Sqlite Platform emulates schema by underscoring each dot and generating tables
* into the default database.
*
* This hack is implemented to be able to use SQLite as testdriver when
* using schema supporting databases.
*/
public function canEmulateSchemas()
{
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/4805',
'SqlitePlatform::canEmulateSchemas() is deprecated.',
);
return $this->schemaEmulationEnabled;
}
/**
* {@inheritDoc}
*/
public function getCreateTablesSQL(array $tables): array
{
$sql = [];
foreach ($tables as $table) {
$sql = array_merge($sql, $this->getCreateTableSQL($table));
}
return $sql;
}
/**
* {@inheritDoc}
*/
public function getDropTablesSQL(array $tables): array
{
$sql = [];
foreach ($tables as $table) {
$sql[] = $this->getDropTableSQL($table->getQuotedName($this));
}
return $sql;
}
/**
* {@inheritDoc}
*/
public function getCreatePrimaryKeySQL(Index $index, $table)
{
throw new Exception('Sqlite platform does not support alter primary key.');
}
/**
* {@inheritDoc}
*/
public function getCreateForeignKeySQL(ForeignKeyConstraint $foreignKey, $table)
{
throw new Exception('Sqlite platform does not support alter foreign key.');
}
/**
* {@inheritDoc}
*/
public function getDropForeignKeySQL($foreignKey, $table)
{
throw new Exception('Sqlite platform does not support alter foreign key.');
}
/**
* {@inheritDoc}
*
* @deprecated
*/
public function getCreateConstraintSQL(Constraint $constraint, $table)
{
throw new Exception('Sqlite platform does not support alter constraint.');
}
/**
* {@inheritDoc}
*
* @param int|null $createFlags
* @psalm-param int-mask-of<AbstractPlatform::CREATE_*>|null $createFlags
*/
public function getCreateTableSQL(Table $table, $createFlags = null)
{
$createFlags = $createFlags ?? self::CREATE_INDEXES | self::CREATE_FOREIGNKEYS;
return parent::getCreateTableSQL($table, $createFlags);
}
/**
* @deprecated The SQL used for schema introspection is an implementation detail and should not be relied upon.
*
* @param string $table
* @param string|null $database
*
* @return string
*/
public function getListTableForeignKeysSQL($table, $database = null)
{
$table = $this->emulateSchemaNamespacing($table);
return sprintf('PRAGMA foreign_key_list(%s)', $this->quoteStringLiteral($table));
}
/**
* {@inheritDoc}
*/
public function getAlterTableSQL(TableDiff $diff)
{
$sql = $this->getSimpleAlterTableSQL($diff);
if ($sql !== false) {
return $sql;
}
$table = $diff->getOldTable();
if (! $table instanceof Table) {
throw new Exception(
'Sqlite platform requires for alter table the table diff with reference to original table schema',
);
}
$columns = [];
$oldColumnNames = [];
$newColumnNames = [];
$columnSql = [];
foreach ($table->getColumns() as $columnName => $column) {
$columnName = strtolower($columnName);
$columns[$columnName] = $column;
$oldColumnNames[$columnName] = $newColumnNames[$columnName] = $column->getQuotedName($this);
}
foreach ($diff->getDroppedColumns() as $column) {
if ($this->onSchemaAlterTableRemoveColumn($column, $diff, $columnSql)) {
continue;
}
$columnName = strtolower($column->getName());
if (! isset($columns[$columnName])) {
continue;
}
unset(
$columns[$columnName],
$oldColumnNames[$columnName],
$newColumnNames[$columnName],
);
}
foreach ($diff->getRenamedColumns() as $oldColumnName => $column) {
if ($this->onSchemaAlterTableRenameColumn($oldColumnName, $column, $diff, $columnSql)) {
continue;
}
$oldColumnName = strtolower($oldColumnName);
$columns = $this->replaceColumn(
$table->getName(),
$columns,
$oldColumnName,
$column,
);
if (! isset($newColumnNames[$oldColumnName])) {
continue;
}
$newColumnNames[$oldColumnName] = $column->getQuotedName($this);
}
foreach ($diff->getModifiedColumns() as $columnDiff) {
if ($this->onSchemaAlterTableChangeColumn($columnDiff, $diff, $columnSql)) {
continue;
}
$oldColumn = $columnDiff->getOldColumn() ?? $columnDiff->getOldColumnName();
$oldColumnName = strtolower($oldColumn->getName());
$columns = $this->replaceColumn(
$table->getName(),
$columns,
$oldColumnName,
$columnDiff->getNewColumn(),
);
if (! isset($newColumnNames[$oldColumnName])) {
continue;
}
$newColumnNames[$oldColumnName] = $columnDiff->getNewColumn()->getQuotedName($this);
}
foreach ($diff->getAddedColumns() as $column) {
if ($this->onSchemaAlterTableAddColumn($column, $diff, $columnSql)) {
continue;
}
$columns[strtolower($column->getName())] = $column;
}
$sql = [];
$tableSql = [];
if (! $this->onSchemaAlterTable($diff, $tableSql)) {
$dataTable = new Table('__temp__' . $table->getName());
$newTable = new Table(
$table->getQuotedName($this),
$columns,
$this->getPrimaryIndexInAlteredTable($diff, $table),
[],
$this->getForeignKeysInAlteredTable($diff, $table),
$table->getOptions(),
);
$newTable->addOption('alter', true);
$sql = $this->getPreAlterTableIndexForeignKeySQL($diff);
$sql[] = sprintf(
'CREATE TEMPORARY TABLE %s AS SELECT %s FROM %s',
$dataTable->getQuotedName($this),
implode(', ', $oldColumnNames),
$table->getQuotedName($this),
);
$sql[] = $this->getDropTableSQL($table);
$sql = array_merge($sql, $this->getCreateTableSQL($newTable));
$sql[] = sprintf(
'INSERT INTO %s (%s) SELECT %s FROM %s',
$newTable->getQuotedName($this),
implode(', ', $newColumnNames),
implode(', ', $oldColumnNames),
$dataTable->getQuotedName($this),
);
$sql[] = $this->getDropTableSQL($dataTable->getQuotedName($this));
$newName = $diff->getNewName();
if ($newName !== false) {
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5663',
'Generation of "rename table" SQL using %s is deprecated. Use getRenameTableSQL() instead.',
__METHOD__,
);
$sql[] = sprintf(
'ALTER TABLE %s RENAME TO %s',
$newTable->getQuotedName($this),
$newName->getQuotedName($this),
);
}
$sql = array_merge($sql, $this->getPostAlterTableIndexForeignKeySQL($diff));
}
return array_merge($sql, $tableSql, $columnSql);
}
/**
* Replace the column with the given name with the new column.
*
* @param string $tableName
* @param array<string,Column> $columns
* @param string $columnName
*
* @return array<string,Column>
*
* @throws Exception
*/
private function replaceColumn($tableName, array $columns, $columnName, Column $column): array
{
$keys = array_keys($columns);
$index = array_search($columnName, $keys, true);
if ($index === false) {
throw SchemaException::columnDoesNotExist($columnName, $tableName);
}
$values = array_values($columns);
$keys[$index] = strtolower($column->getName());
$values[$index] = $column;
return array_combine($keys, $values);
}
/**
* @return string[]|false
*
* @throws Exception
*/
private function getSimpleAlterTableSQL(TableDiff $diff)
{
// Suppress changes on integer type autoincrement columns.
foreach ($diff->getModifiedColumns() as $columnDiff) {
$oldColumn = $columnDiff->getOldColumn();
if ($oldColumn === null) {
continue;
}
$newColumn = $columnDiff->getNewColumn();
if (! $newColumn->getAutoincrement() || ! $newColumn->getType() instanceof IntegerType) {
continue;
}
$oldColumnName = $oldColumn->getName();
if (! $columnDiff->hasTypeChanged() && $columnDiff->hasUnsignedChanged()) {
unset($diff->changedColumns[$oldColumnName]);
continue;
}
$fromColumnType = $oldColumn->getType();
if (! ($fromColumnType instanceof Types\SmallIntType) && ! ($fromColumnType instanceof Types\BigIntType)) {
continue;
}
unset($diff->changedColumns[$oldColumnName]);
}
if (
count($diff->getModifiedColumns()) > 0
|| count($diff->getDroppedColumns()) > 0
|| count($diff->getRenamedColumns()) > 0
|| count($diff->getAddedIndexes()) > 0
|| count($diff->getModifiedIndexes()) > 0
|| count($diff->getDroppedIndexes()) > 0
|| count($diff->getRenamedIndexes()) > 0
|| count($diff->getAddedForeignKeys()) > 0
|| count($diff->getModifiedForeignKeys()) > 0
|| count($diff->getDroppedForeignKeys()) > 0
) {
return false;
}
$table = $diff->getOldTable() ?? $diff->getName($this);
$sql = [];
$tableSql = [];
$columnSql = [];
foreach ($diff->getAddedColumns() as $column) {
if ($this->onSchemaAlterTableAddColumn($column, $diff, $columnSql)) {
continue;
}
$definition = array_merge([
'unique' => null,
'autoincrement' => null,
'default' => null,
], $column->toArray());
$type = $definition['type'];
switch (true) {
case isset($definition['columnDefinition']) || $definition['autoincrement'] || $definition['unique']:
case $type instanceof Types\DateTimeType && $definition['default'] === $this->getCurrentTimestampSQL():
case $type instanceof Types\DateType && $definition['default'] === $this->getCurrentDateSQL():
case $type instanceof Types\TimeType && $definition['default'] === $this->getCurrentTimeSQL():
return false;
}
$definition['name'] = $column->getQuotedName($this);
if ($type instanceof Types\StringType) {
$definition['length'] ??= 255;
}
$sql[] = 'ALTER TABLE ' . $table->getQuotedName($this) . ' ADD COLUMN '
. $this->getColumnDeclarationSQL($definition['name'], $definition);
}
if (! $this->onSchemaAlterTable($diff, $tableSql)) {
if ($diff->newName !== false) {
Deprecation::trigger(
'doctrine/dbal',
'https://github.com/doctrine/dbal/pull/5663',
'Generation of SQL that renames a table using %s is deprecated.'
. ' Use getRenameTableSQL() instead.',
__METHOD__,
);
$newTable = new Identifier($diff->newName);
$sql[] = 'ALTER TABLE ' . $table->getQuotedName($this) . ' RENAME TO '
. $newTable->getQuotedName($this);
}
}
return array_merge($sql, $tableSql, $columnSql);
}
/** @return string[] */
private function getColumnNamesInAlteredTable(TableDiff $diff, Table $fromTable): array
{
$columns = [];
foreach ($fromTable->getColumns() as $columnName => $column) {
$columns[strtolower($columnName)] = $column->getName();
}
foreach ($diff->getDroppedColumns() as $column) {
$columnName = strtolower($column->getName());
if (! isset($columns[$columnName])) {
continue;
}
unset($columns[$columnName]);
}
foreach ($diff->getRenamedColumns() as $oldColumnName => $column) {
$columnName = $column->getName();
$columns[strtolower($oldColumnName)] = $columnName;
$columns[strtolower($columnName)] = $columnName;
}
foreach ($diff->getModifiedColumns() as $columnDiff) {
$oldColumn = $columnDiff->getOldColumn() ?? $columnDiff->getOldColumnName();
$oldColumnName = $oldColumn->getName();
$newColumnName = $columnDiff->getNewColumn()->getName();
$columns[strtolower($oldColumnName)] = $newColumnName;
$columns[strtolower($newColumnName)] = $newColumnName;
}
foreach ($diff->getAddedColumns() as $column) {
$columnName = $column->getName();
$columns[strtolower($columnName)] = $columnName;
}
return $columns;
}
/** @return Index[] */
private function getIndexesInAlteredTable(TableDiff $diff, Table $fromTable): array
{
$indexes = $fromTable->getIndexes();
$columnNames = $this->getColumnNamesInAlteredTable($diff, $fromTable);
foreach ($indexes as $key => $index) {
foreach ($diff->getRenamedIndexes() as $oldIndexName => $renamedIndex) {
if (strtolower($key) !== strtolower($oldIndexName)) {
continue;
}
unset($indexes[$key]);
}
$changed = false;
$indexColumns = [];
foreach ($index->getColumns() as $columnName) {
$normalizedColumnName = strtolower($columnName);
if (! isset($columnNames[$normalizedColumnName])) {
unset($indexes[$key]);
continue 2;
}
$indexColumns[] = $columnNames[$normalizedColumnName];
if ($columnName === $columnNames[$normalizedColumnName]) {
continue;
}
$changed = true;
}
if (! $changed) {
continue;
}
$indexes[$key] = new Index(
$index->getName(),
$indexColumns,
$index->isUnique(),
$index->isPrimary(),
$index->getFlags(),
);
}
foreach ($diff->getDroppedIndexes() as $index) {
$indexName = strtolower($index->getName());
if (strlen($indexName) === 0 || ! isset($indexes[$indexName])) {
continue;
}
unset($indexes[$indexName]);
}
foreach (
array_merge(
$diff->getModifiedIndexes(),
$diff->getAddedIndexes(),
$diff->getRenamedIndexes(),
) as $index
) {
$indexName = strtolower($index->getName());
if (strlen($indexName) > 0) {
$indexes[$indexName] = $index;
} else {
$indexes[] = $index;
}
}
return $indexes;
}
/** @return ForeignKeyConstraint[] */
private function getForeignKeysInAlteredTable(TableDiff $diff, Table $fromTable): array
{
$foreignKeys = $fromTable->getForeignKeys();
$columnNames = $this->getColumnNamesInAlteredTable($diff, $fromTable);
foreach ($foreignKeys as $key => $constraint) {
$changed = false;
$localColumns = [];
foreach ($constraint->getLocalColumns() as $columnName) {
$normalizedColumnName = strtolower($columnName);
if (! isset($columnNames[$normalizedColumnName])) {
unset($foreignKeys[$key]);
continue 2;
}
$localColumns[] = $columnNames[$normalizedColumnName];
if ($columnName === $columnNames[$normalizedColumnName]) {
continue;
}
$changed = true;
}
if (! $changed) {
continue;
}
$foreignKeys[$key] = new ForeignKeyConstraint(
$localColumns,
$constraint->getForeignTableName(),
$constraint->getForeignColumns(),
$constraint->getName(),
$constraint->getOptions(),
);
}
foreach ($diff->getDroppedForeignKeys() as $constraint) {
if (! $constraint instanceof ForeignKeyConstraint) {
$constraint = new Identifier($constraint);
}
$constraintName = strtolower($constraint->getName());
if (strlen($constraintName) === 0 || ! isset($foreignKeys[$constraintName])) {
continue;
}
unset($foreignKeys[$constraintName]);
}
foreach (array_merge($diff->getModifiedForeignKeys(), $diff->getAddedForeignKeys()) as $constraint) {
$constraintName = strtolower($constraint->getName());
if (strlen($constraintName) > 0) {
$foreignKeys[$constraintName] = $constraint;
} else {
$foreignKeys[] = $constraint;
}
}
return $foreignKeys;
}
/** @return Index[] */
private function getPrimaryIndexInAlteredTable(TableDiff $diff, Table $fromTable): array
{
$primaryIndex = [];
foreach ($this->getIndexesInAlteredTable($diff, $fromTable) as $index) {
if (! $index->isPrimary()) {
continue;
}
$primaryIndex = [$index->getName() => $index];
}
return $primaryIndex;
}
public function createSchemaManager(Connection $connection): SqliteSchemaManager
{
return new SqliteSchemaManager($connection, $this);
}
}
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