first commit

system/Entity/Cast/ArrayCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+/**
+ * Class ArrayCast
+ */
+class ArrayCast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 */
+	public static function get($value, array $params = []): array
+	{
+		if (is_string($value) && (strpos($value, 'a:') === 0 || strpos($value, 's:') === 0))
+		{
+			$value = unserialize($value);
+		}
+
+		return (array) $value;
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public static function set($value, array $params = []): string
+	{
+		return serialize($value);
+	}
+}

system/Entity/Cast/BaseCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+/**
+ * Class BaseCast
+ */
+abstract class BaseCast implements CastInterface
+{
+	/**
+	 * Get
+	 *
+	 * @param mixed $value  Data
+	 * @param array $params Additional param
+	 *
+	 * @return mixed
+	 */
+	public static function get($value, array $params = [])
+	{
+		return $value;
+	}
+
+	/**
+	 * Set
+	 *
+	 * @param mixed $value  Data
+	 * @param array $params Additional param
+	 *
+	 * @return mixed
+	 */
+	public static function set($value, array $params = [])
+	{
+		return $value;
+	}
+}

system/Entity/Cast/BooleanCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+/**
+ * Class BooleanCast
+ */
+class BooleanCast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 */
+	public static function get($value, array $params = []): bool
+	{
+		return (bool) $value;
+	}
+}

system/Entity/Cast/CSVCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+/**
+ * Class CSVCast
+ */
+class CSVCast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 */
+	public static function get($value, array $params = []): array
+	{
+		return explode(',', $value);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public static function set($value, array $params = []): string
+	{
+		return implode(',', $value);
+	}
+}

system/Entity/Cast/CastInterface.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+/**
+ * Interface CastInterface
+ */
+interface CastInterface
+{
+	/**
+	 * Get
+	 *
+	 * @param mixed $value  Data
+	 * @param array $params Additional param
+	 *
+	 * @return mixed
+	 */
+	public static function get($value, array $params = []);
+
+	/**
+	 * Set
+	 *
+	 * @param mixed $value  Data
+	 * @param array $params Additional param
+	 *
+	 * @return mixed
+	 */
+	public static function set($value, array $params = []);
+}

system/Entity/Cast/DatetimeCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+use CodeIgniter\I18n\Time;
+use DateTime;
+use Exception;
+
+/**
+ * Class DatetimeCast
+ */
+class DatetimeCast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 *
+	 * @throws Exception
+	 */
+	public static function get($value, array $params = [])
+	{
+		if ($value instanceof Time)
+		{
+			return $value;
+		}
+
+		if ($value instanceof DateTime)
+		{
+			return Time::instance($value);
+		}
+
+		if (is_numeric($value))
+		{
+			return Time::createFromTimestamp($value);
+		}
+
+		if (is_string($value))
+		{
+			return Time::parse($value);
+		}
+
+		return $value;
+	}
+}

system/Entity/Cast/FloatCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+/**
+ * Class FloatCast
+ */
+class FloatCast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 */
+	public static function get($value, array $params = []): float
+	{
+		return (float) $value;
+	}
+}

system/Entity/Cast/IntegerCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+/**
+ * Class IntegerCast
+ */
+class IntegerCast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 */
+	public static function get($value, array $params = []): int
+	{
+		return (int) $value;
+	}
+}

system/Entity/Cast/JsonCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+use CodeIgniter\Entity\Exceptions\CastException;
+use JsonException;
+use stdClass;
+
+/**
+ * Class JsonCast
+ */
+class JsonCast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 */
+	public static function get($value, array $params = [])
+	{
+		$associative = in_array('array', $params, true);
+		$tmp         = ! is_null($value) ? ($associative ? [] : new stdClass) : null;
+
+		if (function_exists('json_decode')
+			&& ((is_string($value)
+					&& strlen($value) > 1
+					&& in_array($value[0], ['[', '{', '"'], true))
+				|| is_numeric($value)
+			)
+		)
+		{
+			try
+			{
+				$tmp = json_decode($value, $associative, 512, JSON_THROW_ON_ERROR);
+			}
+			catch (JsonException $e)
+			{
+				throw CastException::forInvalidJsonFormat($e->getCode());
+			}
+		}
+
+		return $tmp;
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public static function set($value, array $params = []): string
+	{
+		if (function_exists('json_encode'))
+		{
+			try
+			{
+				$value = json_encode($value, JSON_UNESCAPED_UNICODE | JSON_THROW_ON_ERROR);
+			}
+			catch (JsonException $e)
+			{
+				throw CastException::forInvalidJsonFormat($e->getCode());
+			}
+		}
+
+		return $value;
+	}
+}

system/Entity/Cast/ObjectCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+/**
+ * Class ObjectCast
+ */
+class ObjectCast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 */
+	public static function get($value, array $params = []): object
+	{
+		return (object) $value;
+	}
+}

system/Entity/Cast/StringCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+/**
+ * Class StringCast
+ */
+class StringCast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 */
+	public static function get($value, array $params = []): string
+	{
+		return (string) $value;
+	}
+}

system/Entity/Cast/TimestampCast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+use CodeIgniter\Entity\Exceptions\CastException;
+
+/**
+ * Class TimestampCast
+ */
+class TimestampCast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 */
+	public static function get($value, array $params = [])
+	{
+		$value = strtotime($value);
+
+		if ($value === false)
+		{
+			throw CastException::forInvalidTimestamp();
+		}
+
+		return $value;
+	}
+}

system/Entity/Cast/URICast.php

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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Entity\Cast;
+
+use CodeIgniter\HTTP\URI;
+
+/**
+ * Class URICast
+ */
+class URICast extends BaseCast
+{
+	/**
+	 * @inheritDoc
+	 */
+	public static function get($value, array $params = []): URI
+	{
+		return $value instanceof URI ? $value : new URI($value);
+	}
+}