Current File : /home/lightco1/www/components/com_projectmanager/models/fields/foreignkey.php
<?php
/**
* @version CVS: 1.0.0
* @package Com_Projectmanager
* @author Sandeep <>
* @copyright Copyright (C) 2016. All rights reserved.
* @license
*/
defined('JPATH_BASE') or die;
jimport('joomla.form.formfield');
/**
* Supports a value from an external table
*
* @since 1.6
*/
class JFormFieldForeignKey extends JFormField
{
/**
* The form field type.
*
* @var string
* @since 1.6
*/
protected $type = 'foreignkey';
private $input_type;
private $table;
private $key_field;
private $value_field;
/**
* Method to get the field input markup.
*
* @return string The field input markup.
*
* @since 1.6
*/
protected function getInput()
{
// Assign field properties.
// Type of input the field shows
$this->input_type = $this->getAttribute('input_type');
// Database Table
$this->table = $this->getAttribute('table');
// The field that the field will save on the database
$this->key_field = (string) $this->getAttribute('key_field');
// The column that the field shows in the input
$this->value_field = (string) $this->getAttribute('value_field');
// Initialize variables.
$html = '';
// Load all the field options
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query
->select(
array(
$db->quoteName($this->key_field),
$db->quoteName($this->value_field)
)
)
->from($this->table);
$db->setQuery($query);
$results = $db->loadObjectList();
$input_options = 'class="' . $this->getAttribute('class') . '"';
// Depends of the type of input, the field will show a type or another
switch ($this->input_type)
{
case 'list':
default:
$options = array();
// Iterate through all the results
foreach ($results as $result)
{
$options[] = JHtml::_('select.option', $result->{$this->key_field}, $result->{$this->value_field});
}
$value = $this->value;
// If the value is a string -> Only one result
if (is_string($value))
{
$value = array($value);
}
elseif (is_object($value))
{
// If the value is an object, let's get its properties.
$value = get_object_vars($value);
}
// If the select is multiple
if ($this->multiple)
{
$input_options .= 'multiple="multiple"';
}
else
{
array_unshift($options, JHtml::_('select.option', '', ''));
}
$html = JHtml::_('select.genericlist', $options, $this->name, $input_options, 'value', 'text', $value, $this->id);
break;
}
return $html;
}
/**
* Wrapper method for getting attributes from the form element
*
* @param string $attr_name Attribute name
* @param mixed $default Optional value to return if attribute not found
*
* @return mixed The value of the attribute if it exists, null otherwise
*/
public function getAttribute($attr_name, $default = null)
{
if (!empty($this->element[$attr_name]))
{
return $this->element[$attr_name];
}
else
{
return $default;
}
}
}
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