<?php
namespace Doctrine\DBAL\Platforms;
use Doctrine\DBAL\DBALException;
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\Table;
use Doctrine\DBAL\Schema\TableDiff;
use Doctrine\DBAL\TransactionIsolationLevel;
use Doctrine\DBAL\Types;
use function array_merge;
use function array_unique;
use function array_values;
use function implode;
use function is_numeric;
use function sprintf;
use function sqrt;
use function str_replace;
use function strlen;
use function strpos;
use function strtolower;
/**
* The SqlitePlatform class describes the specifics and dialects of the SQLite
* database platform.
*
* @todo Rename: SQLitePlatform
*/
class SqlitePlatform extends AbstractPlatform
{
/**
* {@inheritDoc}
*/
public function getRegexpExpression()
{
return 'REGEXP';
}
/**
* {@inheritDoc}
*
* @deprecated Use application-generated UUIDs instead
*/
public function getGuidExpression()
{
return "HEX(RANDOMBLOB(4)) || '-' || HEX(RANDOMBLOB(2)) || '-4' || "
. "SUBSTR(HEX(RANDOMBLOB(2)), 2) || '-' || "
. "SUBSTR('89AB', 1 + (ABS(RANDOM()) % 4), 1) || "
. "SUBSTR(HEX(RANDOMBLOB(2)), 2) || '-' || HEX(RANDOMBLOB(6))";
}
/**
* {@inheritDoc}
*/
public function getNowExpression($type = 'timestamp')
{
switch ($type) {
case 'time':
return 'time(\'now\')';
case 'date':
return 'date(\'now\')';
case 'timestamp':
default:
return 'datetime(\'now\')';
}
}
/**
* {@inheritDoc}
*/
public function getTrimExpression($str, $pos = TrimMode::UNSPECIFIED, $char = false)
{
$trimChar = $char !== false ? (', ' . $char) : '';
switch ($pos) {
case TrimMode::LEADING:
$trimFn = 'LTRIM';
break;
case TrimMode::TRAILING:
$trimFn = 'RTRIM';
break;
default:
$trimFn = 'TRIM';
}
return $trimFn . '(' . $str . $trimChar . ')';
}
/**
* {@inheritDoc}
*
* SQLite only supports the 2 parameter variant of this function
*/
public function getSubstringExpression($value, $position, $length = null)
{
if ($length !== null) {
return 'SUBSTR(' . $value . ', ' . $position . ', ' . $length . ')';
}
return 'SUBSTR(' . $value . ', ' . $position . ', LENGTH(' . $value . '))';
}
/**
* {@inheritDoc}
*/
public function getLocateExpression($str, $substr, $startPos = false)
{
if ($startPos === false) {
return 'LOCATE(' . $str . ', ' . $substr . ')';
}
return 'LOCATE(' . $str . ', ' . $substr . ', ' . $startPos . ')';
}
/**
* {@inheritdoc}
*/
protected function getDateArithmeticIntervalExpression($date, $operator, $interval, $unit)
{
switch ($unit) {
case DateIntervalUnit::SECOND:
case DateIntervalUnit::MINUTE:
case DateIntervalUnit::HOUR:
return 'DATETIME(' . $date . ",'" . $operator . $interval . ' ' . $unit . "')";
default:
switch ($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, $date2);
}
/**
* {@inheritDoc}
*/
protected function _getTransactionIsolationLevelSQL($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}
*/
public function prefersIdentityColumns()
{
return true;
}
/**
* {@inheritDoc}
*/
public function getBooleanTypeDeclarationSQL(array $field)
{
return 'BOOLEAN';
}
/**
* {@inheritDoc}
*/
public function getIntegerTypeDeclarationSQL(array $field)
{
return 'INTEGER' . $this->_getCommonIntegerTypeDeclarationSQL($field);
}
/**
* {@inheritDoc}
*/
public function getBigIntTypeDeclarationSQL(array $field)
{
// SQLite autoincrement is implicit for INTEGER PKs, but not for BIGINT fields.
if (! empty($field['autoincrement'])) {
return $this->getIntegerTypeDeclarationSQL($field);
}
return 'BIGINT' . $this->_getCommonIntegerTypeDeclarationSQL($field);
}
/**
* {@inheritDoc}
*/
public function getTinyIntTypeDeclarationSql(array $field)
{
// SQLite autoincrement is implicit for INTEGER PKs, but not for TINYINT fields.
if (! empty($field['autoincrement'])) {
return $this->getIntegerTypeDeclarationSQL($field);
}
return 'TINYINT' . $this->_getCommonIntegerTypeDeclarationSQL($field);
}
/**
* {@inheritDoc}
*/
public function getSmallIntTypeDeclarationSQL(array $field)
{
// SQLite autoincrement is implicit for INTEGER PKs, but not for SMALLINT fields.
if (! empty($field['autoincrement'])) {
return $this->getIntegerTypeDeclarationSQL($field);
}
return 'SMALLINT' . $this->_getCommonIntegerTypeDeclarationSQL($field);
}
/**
* {@inheritDoc}
*/
public function getMediumIntTypeDeclarationSql(array $field)
{
// SQLite autoincrement is implicit for INTEGER PKs, but not for MEDIUMINT fields.
if (! empty($field['autoincrement'])) {
return $this->getIntegerTypeDeclarationSQL($field);
}
return 'MEDIUMINT' . $this->_getCommonIntegerTypeDeclarationSQL($field);
}
/**
* {@inheritDoc}
*/
public function getDateTimeTypeDeclarationSQL(array $fieldDeclaration)
{
return 'DATETIME';
}
/**
* {@inheritDoc}
*/
public function getDateTypeDeclarationSQL(array $fieldDeclaration)
{
return 'DATE';
}
/**
* {@inheritDoc}
*/
public function getTimeTypeDeclarationSQL(array $fieldDeclaration)
{
return 'TIME';
}
/**
* {@inheritDoc}
*/
protected function _getCommonIntegerTypeDeclarationSQL(array $columnDef)
{
// sqlite autoincrement is only possible for the primary key
if (! empty($columnDef['autoincrement'])) {
return ' PRIMARY KEY AUTOINCREMENT';
}
return ! empty($columnDef['unsigned']) ? ' UNSIGNED' : '';
}
/**
* {@inheritDoc}
*/
public function getForeignKeyDeclarationSQL(ForeignKeyConstraint $foreignKey)
{
return parent::getForeignKeyDeclarationSQL(new ForeignKeyConstraint(
$foreignKey->getQuotedLocalColumns($this),
str_replace('.', '__', $foreignKey->getQuotedForeignTableName($this)),
$foreignKey->getQuotedForeignColumns($this),
$foreignKey->getName(),
$foreignKey->getOptions()
));
}
/**
* {@inheritDoc}
*/
protected function _getCreateTableSQL($name, array $columns, array $options = [])
{
$name = str_replace('.', '__', $name);
$queryFields = $this->getColumnDeclarationListSQL($columns);
if (isset($options['uniqueConstraints']) && ! empty($options['uniqueConstraints'])) {
foreach ($options['uniqueConstraints'] as $name => $definition) {
$queryFields .= ', ' . $this->getUniqueConstraintDeclarationSQL($name, $definition);
}
}
$queryFields .= $this->getNonAutoincrementPrimaryKeyDefinition($columns, $options);
if (isset($options['foreignKeys'])) {
foreach ($options['foreignKeys'] as $foreignKey) {
$queryFields .= ', ' . $this->getForeignKeyDeclarationSQL($foreignKey);
}
}
$query = ['CREATE TABLE ' . $name . ' (' . $queryFields . ')'];
if (isset($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 string[] $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 $keyColumn) {
if (isset($columns[$keyColumn]['autoincrement']) && ! empty($columns[$keyColumn]['autoincrement'])) {
return '';
}
}
return ', PRIMARY KEY(' . implode(', ', $keyColumns) . ')';
}
/**
* {@inheritDoc}
*/
protected function getVarcharTypeDeclarationSQLSnippet($length, $fixed)
{
return $fixed ? ($length ? 'CHAR(' . $length . ')' : 'CHAR(255)')
: ($length ? 'VARCHAR(' . $length . ')' : 'TEXT');
}
/**
* {@inheritdoc}
*/
protected function getBinaryTypeDeclarationSQLSnippet($length, $fixed)
{
return 'BLOB';
}
/**
* {@inheritdoc}
*/
public function getBinaryMaxLength()
{
return 0;
}
/**
* {@inheritdoc}
*/
public function getBinaryDefaultLength()
{
return 0;
}
/**
* {@inheritDoc}
*/
public function getClobTypeDeclarationSQL(array $field)
{
return 'CLOB';
}
/**
* {@inheritDoc}
*/
public function getListTableConstraintsSQL($table)
{
$table = str_replace('.', '__', $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)
);
}
/**
* {@inheritDoc}
*/
public function getListTableColumnsSQL($table, $currentDatabase = null)
{
$table = str_replace('.', '__', $table);
return sprintf('PRAGMA table_info(%s)', $this->quoteStringLiteral($table));
}
/**
* {@inheritDoc}
*/
public function getListTableIndexesSQL($table, $currentDatabase = null)
{
$table = str_replace('.', '__', $table);
return sprintf('PRAGMA index_list(%s)', $this->quoteStringLiteral($table));
}
/**
* {@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}
*/
public function getListViewsSQL($database)
{
return "SELECT name, sql FROM sqlite_master WHERE type='view' AND sql NOT NULL";
}
/**
* {@inheritDoc}
*/
public function getCreateViewSQL($name, $sql)
{
return 'CREATE VIEW ' . $name . ' AS ' . $sql;
}
/**
* {@inheritDoc}
*/
public function getDropViewSQL($name)
{
return 'DROP VIEW ' . $name;
}
/**
* {@inheritDoc}
*/
public function getAdvancedForeignKeyOptionsSQL(ForeignKeyConstraint $foreignKey)
{
$query = parent::getAdvancedForeignKeyOptionsSQL($foreignKey);
$query .= ($foreignKey->hasOption('deferrable') && $foreignKey->getOption('deferrable') !== false ? ' ' : ' NOT ') . 'DEFERRABLE';
$query .= ' INITIALLY ' . ($foreignKey->hasOption('deferred') && $foreignKey->getOption('deferred') !== false ? 'DEFERRED' : 'IMMEDIATE');
return $query;
}
/**
* {@inheritDoc}
*/
public function supportsIdentityColumns()
{
return true;
}
/**
* {@inheritDoc}
*/
public function supportsColumnCollation()
{
return true;
}
/**
* {@inheritDoc}
*/
public function supportsInlineColumnComments()
{
return true;
}
/**
* {@inheritDoc}
*/
public function getName()
{
return 'sqlite';
}
/**
* {@inheritDoc}
*/
public function getTruncateTableSQL($tableName, $cascade = false)
{
$tableIdentifier = new Identifier($tableName);
$tableName = str_replace('.', '__', $tableIdentifier->getQuotedName($this));
return 'DELETE FROM ' . $tableName;
}
/**
* User-defined function for Sqlite that is used with PDO::sqliteCreateFunction().
*
* @param int|float $value
*
* @return float
*/
public static function udfSqrt($value)
{
return sqrt($value);
}
/**
* User-defined function for Sqlite that implements MOD(a, b).
*
* @param int $a
* @param int $b
*
* @return int
*/
public static function udfMod($a, $b)
{
return $a % $b;
}
/**
* @param string $str
* @param string $substr
* @param int $offset
*
* @return int
*/
public static function udfLocate($str, $substr, $offset = 0)
{
// SQL's LOCATE function works on 1-based positions, while PHP's strpos works on 0-based positions.
// So we have to make them compatible if an offset is given.
if ($offset > 0) {
$offset -= 1;
}
$pos = strpos($str, $substr, $offset);
if ($pos !== false) {
return $pos + 1;
}
return 0;
}
/**
* {@inheritDoc}
*/
public function getForUpdateSql()
{
return '';
}
/**
* {@inheritDoc}
*/
public function getInlineColumnCommentSQL($comment)
{
return '--' . str_replace("\n", "\n--", $comment) . "\n";
}
/**
* {@inheritDoc}
*/
protected function initializeDoctrineTypeMappings()
{
$this->doctrineTypeMapping = [
'boolean' => 'boolean',
'tinyint' => 'boolean',
'smallint' => 'smallint',
'mediumint' => 'integer',
'int' => 'integer',
'integer' => 'integer',
'serial' => 'integer',
'bigint' => 'bigint',
'bigserial' => 'bigint',
'clob' => 'text',
'tinytext' => 'text',
'mediumtext' => 'text',
'longtext' => 'text',
'text' => 'text',
'varchar' => 'string',
'longvarchar' => 'string',
'varchar2' => 'string',
'nvarchar' => 'string',
'image' => 'string',
'ntext' => 'string',
'char' => 'string',
'date' => 'date',
'datetime' => 'datetime',
'timestamp' => 'datetime',
'time' => 'time',
'float' => 'float',
'double' => 'float',
'double precision' => 'float',
'real' => 'float',
'decimal' => 'decimal',
'numeric' => 'decimal',
'blob' => 'blob',
];
}
/**
* {@inheritDoc}
*/
protected function getReservedKeywordsClass()
{
return Keywords\SQLiteKeywords::class;
}
/**
* {@inheritDoc}
*/
protected function getPreAlterTableIndexForeignKeySQL(TableDiff $diff)
{
if (! $diff->fromTable instanceof Table) {
throw new DBALException('Sqlite platform requires for alter table the table diff with reference to original table schema');
}
$sql = [];
foreach ($diff->fromTable->getIndexes() as $index) {
if ($index->isPrimary()) {
continue;
}
$sql[] = $this->getDropIndexSQL($index, $diff->name);
}
return $sql;
}
/**
* {@inheritDoc}
*/
protected function getPostAlterTableIndexForeignKeySQL(TableDiff $diff)
{
if (! $diff->fromTable instanceof Table) {
throw new DBALException('Sqlite platform requires for alter table the table diff with reference to original table schema');
}
$sql = [];
$tableName = $diff->newName ? $diff->getNewName(): $diff->getName($this);
foreach ($this->getIndexesInAlteredTable($diff) 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 $query . ' LIMIT -1 OFFSET ' . $offset;
}
return parent::doModifyLimitQuery($query, $limit, $offset);
}
/**
* {@inheritDoc}
*/
public function getBlobTypeDeclarationSQL(array $field)
{
return 'BLOB';
}
/**
* {@inheritDoc}
*/
public function getTemporaryTableName($tableName)
{
$tableName = str_replace('.', '__', $tableName);
return $tableName;
}
/**
* {@inheritDoc}
*
* 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()
{
return true;
}
/**
* {@inheritDoc}
*/
public function supportsForeignKeyConstraints()
{
return false;
}
/**
* {@inheritDoc}
*/
public function getCreatePrimaryKeySQL(Index $index, $table)
{
throw new DBALException('Sqlite platform does not support alter primary key.');
}
/**
* {@inheritdoc}
*/
public function getCreateForeignKeySQL(ForeignKeyConstraint $foreignKey, $table)
{
throw new DBALException('Sqlite platform does not support alter foreign key.');
}
/**
* {@inheritdoc}
*/
public function getDropForeignKeySQL($foreignKey, $table)
{
throw new DBALException('Sqlite platform does not support alter foreign key.');
}
/**
* {@inheritDoc}
*/
public function getCreateConstraintSQL(Constraint $constraint, $table)
{
throw new DBALException('Sqlite platform does not support alter constraint.');
}
/**
* {@inheritDoc}
*/
public function getCreateTableSQL(Table $table, $createFlags = null)
{
$createFlags = $createFlags ?? self::CREATE_INDEXES | self::CREATE_FOREIGNKEYS;
return parent::getCreateTableSQL($table, $createFlags);
}
/**
* {@inheritDoc}
*/
public function getListTableForeignKeysSQL($table, $database = null)
{
$table = str_replace('.', '__', $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;
}
$fromTable = $diff->fromTable;
if (! $fromTable instanceof Table) {
throw new DBALException('Sqlite platform requires for alter table the table diff with reference to original table schema');
}
$table = clone $fromTable;
$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->removedColumns as $columnName => $column) {
if ($this->onSchemaAlterTableRemoveColumn($column, $diff, $columnSql)) {
continue;
}
$columnName = strtolower($columnName);
if (! isset($columns[$columnName])) {
continue;
}
unset(
$columns[$columnName],
$oldColumnNames[$columnName],
$newColumnNames[$columnName]
);
}
foreach ($diff->renamedColumns as $oldColumnName => $column) {
if ($this->onSchemaAlterTableRenameColumn($oldColumnName, $column, $diff, $columnSql)) {
continue;
}
$oldColumnName = strtolower($oldColumnName);
if (isset($columns[$oldColumnName])) {
unset($columns[$oldColumnName]);
}
$columns[strtolower($column->getName())] = $column;
if (! isset($newColumnNames[$oldColumnName])) {
continue;
}
$newColumnNames[$oldColumnName] = $column->getQuotedName($this);
}
foreach ($diff->changedColumns as $oldColumnName => $columnDiff) {
if ($this->onSchemaAlterTableChangeColumn($columnDiff, $diff, $columnSql)) {
continue;
}
if (isset($columns[$oldColumnName])) {
unset($columns[$oldColumnName]);
}
$columns[strtolower($columnDiff->column->getName())] = $columnDiff->column;
if (! isset($newColumnNames[$oldColumnName])) {
continue;
}
$newColumnNames[$oldColumnName] = $columnDiff->column->getQuotedName($this);
}
foreach ($diff->addedColumns as $columnName => $column) {
if ($this->onSchemaAlterTableAddColumn($column, $diff, $columnSql)) {
continue;
}
$columns[strtolower($columnName)] = $column;
}
$sql = [];
$tableSql = [];
if (! $this->onSchemaAlterTable($diff, $tableSql)) {
$dataTable = new Table('__temp__' . $table->getName());
$newTable = new Table($table->getQuotedName($this), $columns, $this->getPrimaryIndexInAlteredTable($diff), $this->getForeignKeysInAlteredTable($diff), 0, $table->getOptions());
$newTable->addOption('alter', true);
$sql = $this->getPreAlterTableIndexForeignKeySQL($diff);
//$sql = array_merge($sql, $this->getCreateTableSQL($dataTable, 0));
$sql[] = sprintf('CREATE TEMPORARY TABLE %s AS SELECT %s FROM %s', $dataTable->getQuotedName($this), implode(', ', $oldColumnNames), $table->getQuotedName($this));
$sql[] = $this->getDropTableSQL($fromTable);
$sql = array_merge($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);
if ($diff->newName && $diff->newName !== $diff->name) {
$renamedTable = $diff->getNewName();
$sql[] = 'ALTER TABLE ' . $newTable->getQuotedName($this) . ' RENAME TO ' . $renamedTable->getQuotedName($this);
}
$sql = array_merge($sql, $this->getPostAlterTableIndexForeignKeySQL($diff));
}
return array_merge($sql, $tableSql, $columnSql);
}
/**
* @return string[]|false
*/
private function getSimpleAlterTableSQL(TableDiff $diff)
{
// Suppress changes on integer type autoincrement columns.
foreach ($diff->changedColumns as $oldColumnName => $columnDiff) {
if (! $columnDiff->fromColumn instanceof Column ||
! $columnDiff->column instanceof Column ||
! $columnDiff->column->getAutoincrement() ||
! $columnDiff->column->getType() instanceof Types\IntegerType
) {
continue;
}
if (! $columnDiff->hasChanged('type') && $columnDiff->hasChanged('unsigned')) {
unset($diff->changedColumns[$oldColumnName]);
continue;
}
$fromColumnType = $columnDiff->fromColumn->getType();
if (! ($fromColumnType instanceof Types\SmallIntType) && ! ($fromColumnType instanceof Types\BigIntType)) {
continue;
}
unset($diff->changedColumns[$oldColumnName]);
}
if (! empty($diff->renamedColumns) || ! empty($diff->addedForeignKeys) || ! empty($diff->addedIndexes)
|| ! empty($diff->changedColumns) || ! empty($diff->changedForeignKeys) || ! empty($diff->changedIndexes)
|| ! empty($diff->removedColumns) || ! empty($diff->removedForeignKeys) || ! empty($diff->removedIndexes)
|| ! empty($diff->renamedIndexes)
) {
return false;
}
$table = new Table($diff->name);
$sql = [];
$tableSql = [];
$columnSql = [];
foreach ($diff->addedColumns as $column) {
if ($this->onSchemaAlterTableAddColumn($column, $diff, $columnSql)) {
continue;
}
$field = array_merge(['unique' => null, 'autoincrement' => null, 'default' => null], $column->toArray());
$type = $field['type'];
switch (true) {
case isset($field['columnDefinition']) || $field['autoincrement'] || $field['unique']:
case $type instanceof Types\DateTimeType && $field['default'] === $this->getCurrentTimestampSQL():
case $type instanceof Types\DateType && $field['default'] === $this->getCurrentDateSQL():
case $type instanceof Types\TimeType && $field['default'] === $this->getCurrentTimeSQL():
return false;
}
$field['name'] = $column->getQuotedName($this);
if ($type instanceof Types\StringType && $field['length'] === null) {
$field['length'] = 255;
}
$sql[] = 'ALTER TABLE ' . $table->getQuotedName($this) . ' ADD COLUMN ' . $this->getColumnDeclarationSQL($field['name'], $field);
}
if (! $this->onSchemaAlterTable($diff, $tableSql)) {
if ($diff->newName !== false) {
$newTable = new Identifier($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)
{
$columns = [];
foreach ($diff->fromTable->getColumns() as $columnName => $column) {
$columns[strtolower($columnName)] = $column->getName();
}
foreach ($diff->removedColumns as $columnName => $column) {
$columnName = strtolower($columnName);
if (! isset($columns[$columnName])) {
continue;
}
unset($columns[$columnName]);
}
foreach ($diff->renamedColumns as $oldColumnName => $column) {
$columnName = $column->getName();
$columns[strtolower($oldColumnName)] = $columnName;
$columns[strtolower($columnName)] = $columnName;
}
foreach ($diff->changedColumns as $oldColumnName => $columnDiff) {
$columnName = $columnDiff->column->getName();
$columns[strtolower($oldColumnName)] = $columnName;
$columns[strtolower($columnName)] = $columnName;
}
foreach ($diff->addedColumns as $columnName => $column) {
$columns[strtolower($columnName)] = $columnName;
}
return $columns;
}
/**
* @return Index[]
*/
private function getIndexesInAlteredTable(TableDiff $diff)
{
$indexes = $diff->fromTable->getIndexes();
$columnNames = $this->getColumnNamesInAlteredTable($diff);
foreach ($indexes as $key => $index) {
foreach ($diff->renamedIndexes 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;
} else {
$indexColumns[] = $columnNames[$normalizedColumnName];
if ($columnName !== $columnNames[$normalizedColumnName]) {
$changed = true;
}
}
}
if (! $changed) {
continue;
}
$indexes[$key] = new Index($index->getName(), $indexColumns, $index->isUnique(), $index->isPrimary(), $index->getFlags());
}
foreach ($diff->removedIndexes as $index) {
$indexName = strtolower($index->getName());
if (! strlen($indexName) || ! isset($indexes[$indexName])) {
continue;
}
unset($indexes[$indexName]);
}
foreach (array_merge($diff->changedIndexes, $diff->addedIndexes, $diff->renamedIndexes) as $index) {
$indexName = strtolower($index->getName());
if (strlen($indexName)) {
$indexes[$indexName] = $index;
} else {
$indexes[] = $index;
}
}
return $indexes;
}
/**
* @return ForeignKeyConstraint[]
*/
private function getForeignKeysInAlteredTable(TableDiff $diff)
{
$foreignKeys = $diff->fromTable->getForeignKeys();
$columnNames = $this->getColumnNamesInAlteredTable($diff);
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;
} else {
$localColumns[] = $columnNames[$normalizedColumnName];
if ($columnName !== $columnNames[$normalizedColumnName]) {
$changed = true;
}
}
}
if (! $changed) {
continue;
}
$foreignKeys[$key] = new ForeignKeyConstraint($localColumns, $constraint->getForeignTableName(), $constraint->getForeignColumns(), $constraint->getName(), $constraint->getOptions());
}
foreach ($diff->removedForeignKeys as $constraint) {
$constraintName = strtolower($constraint->getName());
if (! strlen($constraintName) || ! isset($foreignKeys[$constraintName])) {
continue;
}
unset($foreignKeys[$constraintName]);
}
foreach (array_merge($diff->changedForeignKeys, $diff->addedForeignKeys) as $constraint) {
$constraintName = strtolower($constraint->getName());
if (strlen($constraintName)) {
$foreignKeys[$constraintName] = $constraint;
} else {
$foreignKeys[] = $constraint;
}
}
return $foreignKeys;
}
/**
* @return Index[]
*/
private function getPrimaryIndexInAlteredTable(TableDiff $diff)
{
$primaryIndex = [];
foreach ($this->getIndexesInAlteredTable($diff) as $index) {
if (! $index->isPrimary()) {
continue;
}
$primaryIndex = [$index->getName() => $index];
}
return $primaryIndex;
}
}