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<?php
namespace Laminas\Db\RowGateway;
use ArrayAccess;
use Countable;
use Laminas\Db\Sql\Sql;
use Laminas\Db\Sql\TableIdentifier;
// phpcs:ignore SlevomatCodingStandard.Namespaces.UnusedUses.UnusedUse
use ReturnTypeWillChange;
use function array_key_exists;
use function count;
use function is_string;
abstract class AbstractRowGateway implements ArrayAccess, Countable, RowGatewayInterface
{
/** @var bool */
protected $isInitialized = false;
/** @var string|TableIdentifier */
protected $table;
/** @var array */
protected $primaryKeyColumn;
/** @var array */
protected $primaryKeyData;
/** @var array */
protected $data = [];
/** @var Sql */
protected $sql;
/** @var Feature\FeatureSet */
protected $featureSet;
/**
* initialize()
*/
public function initialize()
{
if ($this->isInitialized) {
return;
}
if (! $this->featureSet instanceof Feature\FeatureSet) {
$this->featureSet = new Feature\FeatureSet();
}
$this->featureSet->setRowGateway($this);
$this->featureSet->apply('preInitialize', []);
if (! is_string($this->table) && ! $this->table instanceof TableIdentifier) {
throw new Exception\RuntimeException('This row object does not have a valid table set.');
}
if ($this->primaryKeyColumn === null) {
throw new Exception\RuntimeException('This row object does not have a primary key column set.');
} elseif (is_string($this->primaryKeyColumn)) {
$this->primaryKeyColumn = (array) $this->primaryKeyColumn;
}
if (! $this->sql instanceof Sql) {
throw new Exception\RuntimeException('This row object does not have a Sql object set.');
}
$this->featureSet->apply('postInitialize', []);
$this->isInitialized = true;
}
/**
* Populate Data
*
* @param array $rowData
* @param bool $rowExistsInDatabase
* @return $this Provides a fluent interface
*/
public function populate(array $rowData, $rowExistsInDatabase = false)
{
$this->initialize();
$this->data = $rowData;
if ($rowExistsInDatabase === true) {
$this->processPrimaryKeyData();
return $this;
}
$this->primaryKeyData = null;
return $this;
}
/**
* @param mixed $array
* @return AbstractRowGateway
*/
public function exchangeArray($array)
{
return $this->populate($array, true);
}
/**
* Save
*
* @return int
*/
public function save()
{
$this->initialize();
if ($this->rowExistsInDatabase()) {
// UPDATE
$data = $this->data;
$where = [];
$isPkModified = false;
// primary key is always an array even if its a single column
foreach ($this->primaryKeyColumn as $pkColumn) {
$where[$pkColumn] = $this->primaryKeyData[$pkColumn];
// phpcs:ignore SlevomatCodingStandard.Operators.DisallowEqualOperators.DisallowedEqualOperator
if ($data[$pkColumn] == $this->primaryKeyData[$pkColumn]) {
unset($data[$pkColumn]);
} else {
$isPkModified = true;
}
}
$statement = $this->sql->prepareStatementForSqlObject($this->sql->update()->set($data)->where($where));
$result = $statement->execute();
$rowsAffected = $result->getAffectedRows();
unset($statement, $result); // cleanup
// If one or more primary keys are modified, we update the where clause
if ($isPkModified) {
foreach ($this->primaryKeyColumn as $pkColumn) {
// phpcs:ignore SlevomatCodingStandard.Operators.DisallowEqualOperators.DisallowedEqualOperator
if ($data[$pkColumn] !== $this->primaryKeyData[$pkColumn]) {
$where[$pkColumn] = $data[$pkColumn];
}
}
}
} else {
// INSERT
$insert = $this->sql->insert();
$insert->values($this->data);
$statement = $this->sql->prepareStatementForSqlObject($insert);
$result = $statement->execute();
if (($primaryKeyValue = $result->getGeneratedValue()) && count($this->primaryKeyColumn) === 1) {
$this->primaryKeyData = [$this->primaryKeyColumn[0] => $primaryKeyValue];
} else {
// make primary key data available so that $where can be complete
$this->processPrimaryKeyData();
}
$rowsAffected = $result->getAffectedRows();
unset($statement, $result); // cleanup
$where = [];
// primary key is always an array even if its a single column
foreach ($this->primaryKeyColumn as $pkColumn) {
$where[$pkColumn] = $this->primaryKeyData[$pkColumn];
}
}
// refresh data
$statement = $this->sql->prepareStatementForSqlObject($this->sql->select()->where($where));
$result = $statement->execute();
$rowData = $result->current();
unset($statement, $result); // cleanup
// make sure data and original data are in sync after save
$this->populate($rowData, true);
// return rows affected
return $rowsAffected;
}
/**
* Delete
*
* @return int
*/
public function delete()
{
$this->initialize();
$where = [];
// primary key is always an array even if its a single column
foreach ($this->primaryKeyColumn as $pkColumn) {
$where[$pkColumn] = $this->primaryKeyData[$pkColumn] ?? null;
}
// @todo determine if we need to do a select to ensure 1 row will be affected
$statement = $this->sql->prepareStatementForSqlObject($this->sql->delete()->where($where));
$result = $statement->execute();
$affectedRows = $result->getAffectedRows();
if ($affectedRows === 1) {
// detach from database
$this->primaryKeyData = null;
}
return $affectedRows;
}
/**
* Offset Exists
*
* @param string $offset
* @return bool
*/
#[ReturnTypeWillChange]
public function offsetExists($offset)
{
return array_key_exists($offset, $this->data);
}
/**
* Offset get
*
* @param string $offset
* @return mixed
*/
#[ReturnTypeWillChange]
public function offsetGet($offset)
{
return $this->data[$offset];
}
/**
* Offset set
*
* @param string $offset
* @param mixed $value
* @return $this Provides a fluent interface
*/
#[ReturnTypeWillChange]
public function offsetSet($offset, $value)
{
$this->data[$offset] = $value;
return $this;
}
/**
* Offset unset
*
* @param string $offset
* @return $this Provides a fluent interface
*/
#[ReturnTypeWillChange]
public function offsetUnset($offset)
{
$this->data[$offset] = null;
return $this;
}
/**
* @return int
*/
#[ReturnTypeWillChange]
public function count()
{
return count($this->data);
}
/**
* To array
*
* @return array
*/
public function toArray()
{
return $this->data;
}
/**
* __get
*
* @param string $name
* @throws Exception\InvalidArgumentException
* @return mixed
*/
public function __get($name)
{
if (array_key_exists($name, $this->data)) {
return $this->data[$name];
} else {
throw new Exception\InvalidArgumentException('Not a valid column in this row: ' . $name);
}
}
/**
* __set
*
* @param string $name
* @param mixed $value
* @return void
*/
public function __set($name, $value)
{
$this->offsetSet($name, $value);
}
/**
* __isset
*
* @param string $name
* @return bool
*/
public function __isset($name)
{
return $this->offsetExists($name);
}
/**
* __unset
*
* @param string $name
* @return void
*/
public function __unset($name)
{
$this->offsetUnset($name);
}
/**
* @return bool
*/
public function rowExistsInDatabase()
{
return $this->primaryKeyData !== null;
}
/**
* @throws Exception\RuntimeException
*/
protected function processPrimaryKeyData()
{
$this->primaryKeyData = [];
foreach ($this->primaryKeyColumn as $column) {
if (! isset($this->data[$column])) {
throw new Exception\RuntimeException(
'While processing primary key data, a known key ' . $column . ' was not found in the data array'
);
}
$this->primaryKeyData[$column] = $this->data[$column];
}
}
}