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molenda.net/eeeeee/vendor/cakephp/database/Schema/TableSchema.php
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Sebastian Molenda ab96d82fcf init
2026-05-12 21:10:38 +02:00

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PHP

<?php
declare(strict_types=1);
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 3.0.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Database\Schema;
use Cake\Database\Connection;
use Cake\Database\Exception\DatabaseException;
/**
* Represents a single table in a database schema.
*
* Can either be populated using the reflection API's
* or by incrementally building an instance using
* methods.
*
* Once created TableSchema instances can be added to
* Schema\Collection objects. They can also be converted into SQL using the
* createSql(), dropSql() and truncateSql() methods.
*/
class TableSchema implements TableSchemaInterface, SqlGeneratorInterface
{
/**
* The name of the table
*
* @var string
*/
protected string $_table;
/**
* Columns in the table.
*
* @var array<string, \Cake\Database\Schema\Column>
*/
protected array $_columns = [];
/**
* A map with columns to types
*
* @var array<string, string>
*/
protected array $_typeMap = [];
/**
* Indexes in the table.
*
* @var array<string, \Cake\Database\Schema\Index>
*/
protected array $_indexes = [];
/**
* Constraints in the table.
*
* @var array<string, \Cake\Database\Schema\Constraint>
*/
protected array $_constraints = [];
/**
* Options for the table.
*
* @var array<string, mixed>
*/
protected array $_options = [];
/**
* Whether the table is temporary
*
* @var bool
*/
protected bool $_temporary = false;
/**
* Column length when using a `tiny` column type
*
* @var int
*/
public const LENGTH_TINY = 255;
/**
* Column length when using a `medium` column type
*
* @var int
*/
public const LENGTH_MEDIUM = 16777215;
/**
* Column length when using a `long` column type
*
* @var int
*/
public const LENGTH_LONG = 4294967295;
/**
* Valid column length that can be used with text type columns
*
* @var array<string, int>
*/
public static array $columnLengths = [
'tiny' => self::LENGTH_TINY,
'medium' => self::LENGTH_MEDIUM,
'long' => self::LENGTH_LONG,
];
/**
* The valid keys that can be used in a column
* definition.
*
* @var array<string, mixed>
*/
protected static array $_columnKeys = [
'type' => null,
'baseType' => null,
'length' => null,
'precision' => null,
'null' => null,
'default' => null,
'comment' => null,
];
/**
* Additional type specific properties.
*
* @var array<string, array<string, mixed>>
*/
protected static array $_columnExtras = [
'string' => [
'collate' => null,
],
'char' => [
'collate' => null,
],
'text' => [
'collate' => null,
],
'tinyinteger' => [
'unsigned' => null,
'autoIncrement' => null,
],
'smallinteger' => [
'unsigned' => null,
'autoIncrement' => null,
],
'integer' => [
'unsigned' => null,
'autoIncrement' => null,
'generated' => null,
],
'biginteger' => [
'unsigned' => null,
'autoIncrement' => null,
'generated' => null,
],
'decimal' => [
'unsigned' => null,
],
'float' => [
'unsigned' => null,
],
'geometry' => [
'srid' => null,
],
'point' => [
'srid' => null,
],
'linestring' => [
'srid' => null,
],
'polygon' => [
'srid' => null,
],
'datetime' => [
'onUpdate' => null,
],
'datetimefractional' => [
'onUpdate' => null,
],
'timestamp' => [
'onUpdate' => null,
],
'timestampfractional' => [
'onUpdate' => null,
],
'timestamptimezone' => [
'onUpdate' => null,
],
];
/**
* The valid keys that can be used in an index
* definition.
*
* @var array<string, mixed>
*/
protected static array $_indexKeys = [
'type' => null,
'columns' => [],
'length' => [],
'references' => [],
'include' => null,
'update' => 'restrict',
'delete' => 'restrict',
'constraint' => null,
'deferrable' => null,
'expression' => null,
];
/**
* Names of the valid index types.
*
* @var array<string>
*/
protected static array $_validIndexTypes = [
self::INDEX_INDEX,
self::INDEX_FULLTEXT,
];
/**
* Names of the valid constraint types.
*
* @var array<string>
*/
protected static array $_validConstraintTypes = [
self::CONSTRAINT_PRIMARY,
self::CONSTRAINT_UNIQUE,
self::CONSTRAINT_FOREIGN,
self::CONSTRAINT_CHECK,
];
/**
* Names of the valid foreign key actions.
*
* @var array<string>
*/
protected static array $_validForeignKeyActions = [
self::ACTION_CASCADE,
self::ACTION_SET_NULL,
self::ACTION_SET_DEFAULT,
self::ACTION_NO_ACTION,
self::ACTION_RESTRICT,
];
/**
* Primary constraint type
*
* @var string
*/
public const CONSTRAINT_PRIMARY = 'primary';
/**
* Unique constraint type
*
* @var string
*/
public const CONSTRAINT_UNIQUE = 'unique';
/**
* Foreign constraint type
*
* @var string
*/
public const CONSTRAINT_FOREIGN = 'foreign';
/**
* check constraint type
*
* @var string
*/
public const CONSTRAINT_CHECK = 'check';
/**
* Index - index type
*
* @var string
*/
public const INDEX_INDEX = Index ::INDEX;
/**
* Fulltext index type
*
* @var string
*/
public const INDEX_FULLTEXT = Index::FULLTEXT;
/**
* Foreign key cascade action
*
* @var string
*/
public const ACTION_CASCADE = ForeignKey::CASCADE;
/**
* Foreign key set null action
*
* @var string
*/
public const ACTION_SET_NULL = ForeignKey::SET_NULL;
/**
* Foreign key no action
*
* @var string
*/
public const ACTION_NO_ACTION = ForeignKey::NO_ACTION;
/**
* Foreign key restrict action
*
* @var string
*/
public const ACTION_RESTRICT = ForeignKey::RESTRICT;
/**
* Foreign key restrict default
*
* @var string
*/
public const ACTION_SET_DEFAULT = ForeignKey::SET_DEFAULT;
/**
* Constructor.
*
* @param string $table The table name.
* @param array<string, array|string> $columns The list of columns for the schema.
*/
public function __construct(string $table, array $columns = [])
{
$this->_table = $table;
foreach ($columns as $field => $definition) {
$this->addColumn($field, $definition);
}
}
/**
* @inheritDoc
*/
public function name(): string
{
return $this->_table;
}
/**
* @inheritDoc
*/
public function addColumn(string $name, array|string $attrs)
{
if (is_string($attrs)) {
$attrs = ['type' => $attrs];
}
$valid = static::$_columnKeys;
if (isset(static::$_columnExtras[$attrs['type']])) {
$valid += static::$_columnExtras[$attrs['type']];
}
$attrs = array_intersect_key($attrs, $valid);
$attrs['name'] = $name;
foreach (array_keys($attrs) as $key) {
$value = $attrs[$key];
if ($value === null) {
unset($attrs[$key]);
continue;
}
if ($key === 'autoIncrement') {
$attrs['identity'] = $value;
unset($attrs[$key]);
continue;
}
$attrs[$key] = $value;
}
$column = new Column(...$attrs);
$this->_columns[$name] = $column;
$this->_typeMap[$name] = $column->getType();
return $this;
}
/**
* @inheritDoc
*/
public function removeColumn(string $name)
{
unset($this->_columns[$name], $this->_typeMap[$name]);
return $this;
}
/**
* @inheritDoc
*/
public function columns(): array
{
return array_keys($this->_columns);
}
/**
* @inheritDoc
*/
public function getColumn(string $name): ?array
{
if (!isset($this->_columns[$name])) {
return null;
}
$column = $this->_columns[$name];
$attrs = $column->toArray();
$expected = static::$_columnKeys;
if (isset(static::$_columnExtras[$attrs['type']])) {
$expected += static::$_columnExtras[$attrs['type']];
}
// Remove any attributes that weren't in the allow list.
// This is to provide backwards compatible keys
$remove = array_diff(array_keys($attrs), array_keys($expected));
foreach ($remove as $key) {
unset($attrs[$key]);
}
if (isset($attrs['baseType']) && $attrs['baseType'] === $attrs['type']) {
unset($attrs['baseType']);
}
return $attrs;
}
/**
* Get a column object for a given column name.
*
* Will raise an exception if the column does not exist.
*
* @param string $name The name of the column to get.
* @return \Cake\Database\Schema\Column
*/
public function column(string $name): Column
{
$column = $this->_columns[$name] ?? null;
if ($column === null) {
$message = sprintf(
'Table `%s` does not contain a column named `%s`.',
$this->_table,
$name,
);
throw new DatabaseException($message);
}
return $column;
}
/**
* @inheritDoc
*/
public function getColumnType(string $name): ?string
{
if (!isset($this->_columns[$name])) {
return null;
}
return $this->_columns[$name]->getType();
}
/**
* @inheritDoc
*/
public function setColumnType(string $name, string $type)
{
if (!isset($this->_columns[$name])) {
$message = sprintf(
'Column `%s` of table `%s`: The column type `%s` can only be set if the column already exists;',
$name,
$this->_table,
$type,
);
$message .= ' can be checked using `hasColumn()`.';
throw new DatabaseException($message);
}
$this->_columns[$name]
->setType($type)
->setBaseType(null);
$this->_typeMap[$name] = $type;
return $this;
}
/**
* @inheritDoc
*/
public function hasColumn(string $name): bool
{
return isset($this->_columns[$name]);
}
/**
* @inheritDoc
*/
public function baseColumnType(string $column): ?string
{
if (!isset($this->_columns[$column])) {
return null;
}
return $this->_columns[$column]->getBaseType();
}
/**
* @inheritDoc
*/
public function typeMap(): array
{
return $this->_typeMap;
}
/**
* @inheritDoc
*/
public function isNullable(string $name): bool
{
if (!isset($this->_columns[$name])) {
return true;
}
return $this->_columns[$name]->getNull() === true;
}
/**
* @inheritDoc
*/
public function defaultValues(): array
{
$defaults = [];
foreach ($this->_columns as $column) {
$default = $column->getDefault();
if ($default === null && $column->getNull() !== true && $column->getName()) {
continue;
}
$defaults[$column->getName()] = $default;
}
return $defaults;
}
/**
* @inheritDoc
*/
public function addIndex(string $name, array|string $attrs)
{
if (is_string($attrs)) {
$attrs = ['type' => $attrs];
}
$attrs = array_intersect_key($attrs, static::$_indexKeys);
$attrs += static::$_indexKeys;
unset(
$attrs['references'],
$attrs['update'],
$attrs['delete'],
$attrs['constraint'],
$attrs['deferrable'],
$attrs['expression'],
);
if (!in_array($attrs['type'], static::$_validIndexTypes, true)) {
throw new DatabaseException(sprintf(
'Invalid index type `%s` in index `%s` in table `%s`.',
$attrs['type'],
$name,
$this->_table,
));
}
$attrs['columns'] = (array)$attrs['columns'];
foreach ($attrs['columns'] as $field) {
if (empty($this->_columns[$field])) {
$msg = sprintf(
'Columns used in index `%s` in table `%s` must be added to the Table schema first. ' .
'The column `%s` was not found.',
$name,
$this->_table,
$field,
);
throw new DatabaseException($msg);
}
}
$attrs['name'] = $name;
$this->_indexes[$name] = new Index(...$attrs);
return $this;
}
/**
* @inheritDoc
*/
public function indexes(): array
{
return array_keys($this->_indexes);
}
/**
* @inheritDoc
*/
public function getIndex(string $name): ?array
{
if (!isset($this->_indexes[$name])) {
return null;
}
$index = $this->_indexes[$name];
$attrs = $index->toArray();
$optional = ['order', 'include', 'where'];
foreach ($optional as $key) {
if ($attrs[$key] === null) {
unset($attrs[$key]);
}
}
unset($attrs['name']);
return $attrs;
}
/**
* Get a index object for a given index name.
*
* Will raise an exception if no index can be found.
*
* @param string $name The name of the index to get.
* @return \Cake\Database\Schema\Index
*/
public function index(string $name): Index
{
$index = $this->_indexes[$name] ?? null;
if ($index === null) {
$message = sprintf(
'Table `%s` does not contain a index named `%s`.',
$this->_table,
$name,
);
throw new DatabaseException($message);
}
return $index;
}
/**
* @inheritDoc
*/
public function getPrimaryKey(): array
{
foreach ($this->_constraints as $data) {
if ($data->getType() === static::CONSTRAINT_PRIMARY) {
return (array)$data->getColumns();
}
}
return [];
}
/**
* @inheritDoc
*/
public function addConstraint(string $name, array|string $attrs)
{
if (is_string($attrs)) {
$attrs = ['type' => $attrs];
}
$attrs = array_intersect_key($attrs, static::$_indexKeys);
$attrs += static::$_indexKeys;
if ($attrs['constraint'] === null) {
unset($attrs['constraint']);
}
if (!in_array($attrs['type'], static::$_validConstraintTypes, true)) {
throw new DatabaseException(sprintf(
'Invalid constraint type `%s` in table `%s`.',
$attrs['type'],
$this->_table,
));
}
if ($attrs['type'] !== TableSchema::CONSTRAINT_CHECK) {
if (empty($attrs['columns'])) {
throw new DatabaseException(sprintf(
'Constraints in table `%s` must have at least one column.',
$this->_table,
));
}
$attrs['columns'] = (array)$attrs['columns'];
foreach ($attrs['columns'] as $field) {
if (empty($this->_columns[$field])) {
$msg = sprintf(
'Columns used in constraints must be added to the Table schema first. ' .
'The column `%s` was not found in table `%s`.',
$field,
$this->_table,
);
throw new DatabaseException($msg);
}
}
}
$attrs['name'] = $attrs['constraint'] ?? $name;
unset($attrs['constraint'], $attrs['include']);
$type = $attrs['type'] ?? null;
if ($type === static::CONSTRAINT_FOREIGN) {
$attrs = $this->_checkForeignKey($attrs);
} elseif ($type === static::CONSTRAINT_PRIMARY) {
$attrs = [
'type' => $type,
'name' => $attrs['name'],
'columns' => $attrs['columns'],
];
} elseif ($type === static::CONSTRAINT_CHECK) {
$attrs = [
'name' => $attrs['name'],
'expression' => $attrs['expression'],
];
} elseif ($type === static::CONSTRAINT_UNIQUE) {
$attrs = [
'name' => $attrs['name'],
'columns' => $attrs['columns'],
'length' => $attrs['length'],
];
}
if ($type === static::CONSTRAINT_FOREIGN) {
$constraint = $this->_constraints[$name] ?? null;
if ($constraint instanceof ForeignKey) {
// Update an existing foreign key constraint.
// This is backwards compatible with the incremental
// build API that I would like to deprecate.
$constraint->setColumns(array_unique(array_merge(
(array)$constraint->getColumns(),
$attrs['columns'],
)));
if ($constraint->getReferencedTable()) {
$constraint->setColumns(array_unique(array_merge(
(array)$constraint->getReferencedColumns(),
[$attrs['references'][1]],
)));
}
return $this;
}
}
$this->_constraints[$name] = match ($type) {
static::CONSTRAINT_UNIQUE => new UniqueKey(...$attrs),
static::CONSTRAINT_FOREIGN => new ForeignKey(...$attrs),
static::CONSTRAINT_PRIMARY => new Constraint(...$attrs),
static::CONSTRAINT_CHECK => new CheckConstraint(...$attrs),
default => new Constraint(...$attrs),
};
return $this;
}
/**
* @inheritDoc
*/
public function dropConstraint(string $name)
{
if (isset($this->_constraints[$name])) {
unset($this->_constraints[$name]);
}
return $this;
}
/**
* Check whether a table has an autoIncrement column defined.
*
* @return bool
*/
public function hasAutoincrement(): bool
{
foreach ($this->_columns as $column) {
if ($column->getIdentity()) {
return true;
}
}
return false;
}
/**
* Helper method to check/validate foreign keys.
*
* @param array<string, mixed> $attrs Attributes to set.
* @return array<string, mixed>
* @throws \Cake\Database\Exception\DatabaseException When foreign key definition is not valid.
*/
protected function _checkForeignKey(array $attrs): array
{
if (count($attrs['references']) < 2) {
throw new DatabaseException('References must contain a table and column.');
}
if (!in_array($attrs['update'], static::$_validForeignKeyActions)) {
throw new DatabaseException(sprintf(
'Update action is invalid. Must be one of %s',
implode(',', static::$_validForeignKeyActions),
));
}
if (!in_array($attrs['delete'], static::$_validForeignKeyActions)) {
throw new DatabaseException(sprintf(
'Delete action is invalid. Must be one of %s',
implode(',', static::$_validForeignKeyActions),
));
}
// Map the backwards compatible attributes in. Need to check for existing instance.
$attrs['referencedTable'] = $attrs['references'][0];
$attrs['referencedColumns'] = (array)$attrs['references'][1];
unset($attrs['type'], $attrs['references'], $attrs['length'], $attrs['expression']);
return $attrs;
}
/**
* @inheritDoc
*/
public function constraints(): array
{
return array_keys($this->_constraints);
}
/**
* @inheritDoc
*/
public function getConstraint(string $name): ?array
{
$constraint = $this->_constraints[$name] ?? null;
if ($constraint === null) {
return null;
}
$data = $constraint->toArray();
if ($constraint instanceof ForeignKey) {
$data['references'] = [
$constraint->getReferencedTable(),
$constraint->getReferencedColumns(),
];
// If there is only one referenced column, we return it as a string.
// TODO this should be deprecated, but I don't know how to warn about it.
if (count($data['references'][1]) === 1) {
$data['references'][1] = $data['references'][1][0];
}
unset($data['referencedTable'], $data['referencedColumns']);
}
if ($constraint->getType() === static::CONSTRAINT_PRIMARY && $name === 'primary') {
$alias = $constraint->getName();
if ($alias !== 'primary') {
$data['constraint'] = $alias;
}
}
unset($data['name']);
return $data;
}
/**
* Get a constraint object for a given constraint name.
*
* Constraints have a few subtypes such as foreign keys and primary keys.
* You can either use `instanceof` or getType() to check for subclass types.
*
* @param string $name The name of the constraint to get.
* @return \Cake\Database\Schema\Constraint A constraint object.
*/
public function constraint(string $name): Constraint
{
if (!isset($this->_constraints[$name])) {
$message = sprintf(
'Table `%s` does not contain a constraint named `%s`.',
$this->_table,
$name,
);
throw new DatabaseException($message);
}
return $this->_constraints[$name];
}
/**
* @inheritDoc
*/
public function setOptions(array $options)
{
$this->_options = $options + $this->_options;
return $this;
}
/**
* @inheritDoc
*/
public function getOptions(): array
{
return $this->_options;
}
/**
* @inheritDoc
*/
public function setTemporary(bool $temporary)
{
$this->_temporary = $temporary;
return $this;
}
/**
* @inheritDoc
*/
public function isTemporary(): bool
{
return $this->_temporary;
}
/**
* @inheritDoc
*/
public function createSql(Connection $connection): array
{
$dialect = $connection->getWriteDriver()->schemaDialect();
$columns = [];
$constraints = [];
$indexes = [];
foreach (array_keys($this->_columns) as $name) {
$columns[] = $dialect->columnSql($this, $name);
}
foreach (array_keys($this->_constraints) as $name) {
$constraints[] = $dialect->constraintSql($this, $name);
}
foreach (array_keys($this->_indexes) as $name) {
$indexes[] = $dialect->indexSql($this, $name);
}
return $dialect->createTableSql($this, $columns, $constraints, $indexes);
}
/**
* @inheritDoc
*/
public function dropSql(Connection $connection): array
{
$dialect = $connection->getWriteDriver()->schemaDialect();
return $dialect->dropTableSql($this);
}
/**
* @inheritDoc
*/
public function truncateSql(Connection $connection): array
{
$dialect = $connection->getWriteDriver()->schemaDialect();
return $dialect->truncateTableSql($this);
}
/**
* @inheritDoc
*/
public function addConstraintSql(Connection $connection): array
{
$dialect = $connection->getWriteDriver()->schemaDialect();
return $dialect->addConstraintSql($this);
}
/**
* @inheritDoc
*/
public function dropConstraintSql(Connection $connection): array
{
$dialect = $connection->getWriteDriver()->schemaDialect();
return $dialect->dropConstraintSql($this);
}
/**
* Custom unserialization that handles compatibility
* with older CakePHP versions.
*
* Previously the `_columns`, `_indexes`, and `_constraints`
* attributes contained array data. As of 5.3, those attributes
* contain arrays of objects.
*
* @param array<string, mixed> $data The serialized data.
* @return void
*/
public function __unserialize(array $data): void
{
$this->_table = $data["\0*\0_table"] ?? '';
$columns = $data["\0*\0_columns"] ?? [];
foreach ($columns as $name => $column) {
$name = (string)$name;
if (is_array($column)) {
$this->addColumn($name, $column);
} else {
$this->_columns[$name] = $column;
}
}
$indexes = $data["\0*\0_indexes"] ?? [];
foreach ($indexes as $name => $index) {
$name = (string)$name;
if (is_array($index)) {
$this->addIndex($name, $index);
} else {
$this->_indexes[$name] = $index;
}
}
$constraints = $data["\0*\0_constraints"] ?? [];
foreach ($constraints as $name => $constraint) {
$name = (string)$name;
if (is_array($constraint)) {
$this->addConstraint($name, $constraint);
} else {
$this->_constraints[$name] = $constraint;
}
}
$this->_options = $data["\0*\0_options"] ?? [];
$this->_typeMap = $data["\0*\0_typeMap"] ?? [];
$this->_temporary = $data["\0*\0_temporary"] ?? false;
}
/**
* Returns an array of the table schema.
*
* @return array<string, mixed>
*/
public function __debugInfo(): array
{
return [
'table' => $this->_table,
'columns' => $this->_columns,
'indexes' => $this->_indexes,
'constraints' => $this->_constraints,
'options' => $this->_options,
'typeMap' => $this->_typeMap,
'temporary' => $this->_temporary,
];
}
}