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<?php
namespace Bitrix\Sale\Internals;
class Fields
implements \ArrayAccess, \Iterator, \Countable
{
/** @var array */
protected $values = array();
/** @var array */
protected $changedValues = array();
/** @var array */
private $originalValues = array();
/** @var array */
private $customFields = array();
/** @var bool */
protected $isClone = false;
public function __construct(array $values = null)
{
if ($values !== null)
$this->values = $values;
}
/**
* @param $name
* @return bool
*/
public function isChanged($name)
{
return isset($this->changedValues[$name]);
}
/**
* Returns any variable by its name. Null if variable is not set.
*
* @param string $name
* @return string | null
*/
public function get($name)
{
if (isset($this->values[$name]))
{
return $this->values[$name];
}
return null;
}
/**
* @param string $field
*/
public function markCustom(string $field)
{
$this->customFields[$field] = true;
}
/**
* @param string $field
* @return bool
*/
public function isMarkedCustom(string $field) : bool
{
if (!isset($this->customFields[$field]))
{
return false;
}
return $this->customFields[$field];
}
/**
* @param string $field
*/
public function unmarkCustom(string $field)
{
$this->customFields[$field] = false;
}
/**
* @param string $name
* @param mixed $value
* @return bool
*/
public function set($name, $value)
{
if ($this->markChanged($name, $value))
{
$this->values[$name] = $value;
return true;
}
return false;
}
/**
* @internal
*
* @param string $name
* @param mixed $value
* @return bool
*/
public function init($name, $value)
{
$this->values[$name] = $value;
return true;
}
public function clear()
{
$this->values = array();
$this->clearChanged();
}
public function clearChanged()
{
$this->changedValues = array();
$this->originalValues = array();
}
/**
* @return array
*/
public function getValues()
{
return $this->values;
}
/**
* @ine
* @return array
*/
public function getOriginalValues()
{
return $this->originalValues;
}
/**
* @param array $values
*/
public function setValues(array $values)
{
foreach ($values as $name => $value)
$this->set($name, $value);
}
/**
* @param array $values
*/
public function resetValues(array $values)
{
$this->values = array();
if ($values !== null)
$this->values = $values;
}
/**
* @param $name
* @param $value
* @return bool
*/
protected function markChanged($name, $value)
{
$originalValuesIndex = array();
if (!empty($this->originalValues))
{
foreach(array_keys($this->originalValues) as $originalKey)
{
$originalValuesIndex[$originalKey] = true;
}
}
$oldValue = $this->get($name);
if ($oldValue != $value || ($oldValue === null && $value !== null))
{
if (!isset($originalValuesIndex[$name]))
{
$this->originalValues[$name] = $this->get($name);
}
elseif ($this->originalValues[$name] == $value)
{
unset($this->changedValues[$name]);
unset($this->originalValues[$name]);
return true;
}
$this->changedValues[$name] = true;
return true;
}
return false;
}
/**
* @return array
*/
public function getChangedKeys()
{
return array_keys($this->changedValues);
}
/**
* @return array
*/
public function getChangedValues()
{
$r = array();
foreach ($this->values as $k => $v)
{
if (isset($this->changedValues[$k]))
$r[$k] = $v;
}
return $r;
}
/**
* Return the current element
*/
public function current()
{
return current($this->values);
}
/**
* Move forward to next element
*/
public function next()
{
return next($this->values);
}
/**
* Return the key of the current element
*/
public function key()
{
return key($this->values);
}
/**
* Checks if current position is valid
*/
public function valid()
{
$key = $this->key();
return ($key != null);
}
/**
* Rewind the Iterator to the first element
*/
public function rewind()
{
return reset($this->values);
}
/**
* Whether a offset exists
*
* @param mixed $offset
*
* @return bool
*/
public function offsetExists($offset)
{
return isset($this->values[$offset]) || array_key_exists($offset, $this->values);
}
/**
* Offset to retrieve
*
* @param mixed $offset
*
* @return null|string
*/
public function offsetGet($offset)
{
return $this->get($offset);
}
/**
* Offset to set
*
* @param mixed $offset
* @param mixed $value
*/
public function offsetSet($offset, $value)
{
$this->set($offset, $value);
}
/**
* Offset to unset
*
* @param mixed $offset
*/
public function offsetUnset($offset)
{
unset($this->values[$offset]);
if (isset($this->changedValues[$offset]))
unset($this->changedValues[$offset]);
}
/**
* Count elements of an object
*/
public function count()
{
return count($this->values);
}
/**
* @internal
* @param \SplObjectStorage $cloneEntity
*
* @return Fields
*/
public function createClone(\SplObjectStorage $cloneEntity)
{
if ($this->isClone() && $cloneEntity->contains($this))
{
return $cloneEntity[$this];
}
$fieldsClone = clone $this;
$fieldsClone->isClone = true;
if (!$cloneEntity->contains($this))
{
$cloneEntity[$this] = $fieldsClone;
}
return $fieldsClone;
}
/**
* @return bool
*/
public function isClone()
{
return $this->isClone;
}
}