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<?php
/**
 * @package     Joomla.Administrator
 * @subpackage  com_fields
 *
 * @copyright   (C) 2016 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\Component\Fields\Administrator\Table;

\defined('_JEXEC') or die;

use Joomla\CMS\Access\Rules;
use Joomla\CMS\Application\ApplicationHelper;
use Joomla\CMS\Factory;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Table\Table;
use Joomla\Database\DatabaseDriver;
use Joomla\Registry\Registry;
use Joomla\String\StringHelper;

/**
 * Fields Table
 *
 * @since  3.7.0
 */
class FieldTable extends Table
{
	/**
	 * Indicates that columns fully support the NULL value in the database
	 *
	 * @var    boolean
	 * @since  4.0.0
	 */
	protected $_supportNullValue = true;

/**
	 * Class constructor.
	 *
	 * @param   DatabaseDriver  $db  DatabaseDriver object.
	 *
	 * @since   3.7.0
	 */
	public function __construct($db = null)
	{
		parent::__construct('#__fields', 'id', $db);

$this->setColumnAlias('published', 'state');
	}

/**
	 * Method to bind an associative array or object to the JTable instance.This
	 * method only binds properties that are publicly accessible and optionally
	 * takes an array of properties to ignore when binding.
	 *
	 * @param   mixed  $src     An associative array or object to bind to the JTable instance.
	 * @param   mixed  $ignore  An optional array or space separated list of properties to ignore while binding.
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   3.7.0
	 * @throws  \InvalidArgumentException
	 */
	public function bind($src, $ignore = '')
	{
		if (isset($src['params']) && is_array($src['params']))
		{
			$registry = new Registry;
			$registry->loadArray($src['params']);
			$src['params'] = (string) $registry;
		}

if (isset($src['fieldparams']) && is_array($src['fieldparams']))
		{
			// Make sure $registry->options contains no duplicates when the field type is subform
			if (isset($src['type']) && $src['type'] == 'subform' && isset($src['fieldparams']['options']))
			{
				// Fast lookup map to check which custom field ids we have already seen
				$seen_customfields = array();

// Container for the new $src['fieldparams']['options']
				$options = array();

// Iterate through the old options
				$i = 0;

foreach ($src['fieldparams']['options'] as $option)
				{
					// Check whether we have not yet seen this custom field id
					if (!isset($seen_customfields[$option['customfield']]))
					{
						// We haven't, so add it to the final options
						$seen_customfields[$option['customfield']] = true;
						$options['option' . $i] = $option;
						$i++;
					}
				}

// And replace the options with the deduplicated ones.
				$src['fieldparams']['options'] = $options;
			}

$registry = new Registry;
			$registry->loadArray($src['fieldparams']);
			$src['fieldparams'] = (string) $registry;
		}

// Bind the rules.
		if (isset($src['rules']) && is_array($src['rules']))
		{
			$rules = new Rules($src['rules']);
			$this->setRules($rules);
		}

return parent::bind($src, $ignore);
	}

/**
	 * Method to perform sanity checks on the JTable instance properties to ensure
	 * they are safe to store in the database.  Child classes should override this
	 * method to make sure the data they are storing in the database is safe and
	 * as expected before storage.
	 *
	 * @return  boolean  True if the instance is sane and able to be stored in the database.
	 *
	 * @link    https://docs.joomla.org/Special:MyLanguage/JTable/check
	 * @since   3.7.0
	 */
	public function check()
	{
		// Check for valid name
		if (trim($this->title) == '')
		{
			$this->setError(Text::_('COM_FIELDS_MUSTCONTAIN_A_TITLE_FIELD'));

return false;
		}

if (empty($this->name))
		{
			$this->name = $this->title;
		}

$this->name = ApplicationHelper::stringURLSafe($this->name, $this->language);

if (trim(str_replace('-', '', $this->name)) == '')
		{
			$this->name = StringHelper::increment($this->name, 'dash');
		}

$this->name = str_replace(',', '-', $this->name);

// Verify that the name is unique
		$table = new static($this->_db);

if ($table->load(array('name' => $this->name)) && ($table->id != $this->id || $this->id == 0))
		{
			$this->setError(Text::_('COM_FIELDS_ERROR_UNIQUE_NAME'));

return false;
		}

$this->name = str_replace(',', '-', $this->name);

if (empty($this->type))
		{
			$this->type = 'text';
		}

if (empty($this->fieldparams))
		{
			$this->fieldparams = '{}';
		}

$date = Factory::getDate()->toSql();
		$user = Factory::getUser();

// Set created date if not set.
		if (!(int) $this->created_time)
		{
			$this->created_time = $date;
		}

if ($this->id)
		{
			// Existing item
			$this->modified_time = $date;
			$this->modified_by = $user->get('id');
		}
		else
		{
			if (!(int) $this->modified_time)
			{
				$this->modified_time = $this->created_time;
			}

if (empty($this->created_user_id))
			{
				$this->created_user_id = $user->get('id');
			}

if (empty($this->modified_by))
			{
				$this->modified_by = $this->created_user_id;
			}
		}

if (empty($this->group_id))
		{
			$this->group_id = 0;
		}

return true;
	}

/**
	 * Overloaded store function
	 *
	 * @param   boolean  $updateNulls  True to update fields even if they are null.
	 *
	 * @return  mixed  False on failure, positive integer on success.
	 *
	 * @see     Table::store()
	 * @since   4.0.0
	 */
	public function store($updateNulls = true)
	{
		return parent::store($updateNulls);
	}

/**
	 * Method to compute the default name of the asset.
	 * The default name is in the form table_name.id
	 * where id is the value of the primary key of the table.
	 *
	 * @return  string
	 *
	 * @since   3.7.0
	 */
	protected function _getAssetName()
	{
		$contextArray = explode('.', $this->context);

return $contextArray[0] . '.field.' . (int) $this->id;
	}

/**
	 * Method to return the title to use for the asset table.  In
	 * tracking the assets a title is kept for each asset so that there is some
	 * context available in a unified access manager.  Usually this would just
	 * return $this->title or $this->name or whatever is being used for the
	 * primary name of the row. If this method is not overridden, the asset name is used.
	 *
	 * @return  string  The string to use as the title in the asset table.
	 *
	 * @link    https://docs.joomla.org/Special:MyLanguage/JTable/getAssetTitle
	 * @since   3.7.0
	 */
	protected function _getAssetTitle()
	{
		return $this->title;
	}

/**
	 * Method to get the parent asset under which to register this one.
	 * By default, all assets are registered to the ROOT node with ID,
	 * which will default to 1 if none exists.
	 * The extended class can define a table and id to lookup.  If the
	 * asset does not exist it will be created.
	 *
	 * @param   Table    $table  A JTable object for the asset parent.
	 * @param   integer  $id     Id to look up
	 *
	 * @return  integer
	 *
	 * @since   3.7.0
	 */
	protected function _getAssetParentId(Table $table = null, $id = null)
	{
		$contextArray = explode('.', $this->context);
		$component = $contextArray[0];

if ($this->group_id)
		{
			$assetId = $this->getAssetId($component . '.fieldgroup.' . (int) $this->group_id);

if ($assetId)
			{
				return $assetId;
			}
		}
		else
		{
			$assetId = $this->getAssetId($component);

if ($assetId)
			{
				return $assetId;
			}
		}

return parent::_getAssetParentId($table, $id);
	}

/**
	 * Returns an asset id for the given name or false.
	 *
	 * @param   string  $name  The asset name
	 *
	 * @return  number|boolean
	 *
	 * @since    3.7.0
	 */
	private function getAssetId($name)
	{
		$db = $this->getDbo();
		$query = $db->getQuery(true)
			->select($db->quoteName('id'))
			->from($db->quoteName('#__assets'))
			->where($db->quoteName('name') . ' = :name')
			->bind(':name', $name);

// Get the asset id from the database.
		$db->setQuery($query);

$assetId = null;

if ($result = $db->loadResult())
		{
			$assetId = (int) $result;

if ($assetId)
			{
				return $assetId;
			}
		}

return false;
	}
}