Difference between revisions of "JForm/loadFieldType"
From Joomla! Documentation
< API16:JForm
(New page: ===Description===
Method to load a form field object.
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Revision as of 21:53, 13 May 2013
The "API16" namespace is an archived namespace. This page contains information for a Joomla! version which is no longer supported. It exists only as a historical reference, it will not be improved and its content may be incomplete and/or contain broken links.
Description[edit]
Method to load a form field object.
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Syntax[edit]
loadFieldType($type, $new=true)
Parameter Name | Default Value | Description |
---|---|---|
$type | $type The field type. | |
$new | true | $new Flag to toggle whether we should get a new instance of the object. |
Returns[edit]
mixed Field object on success, false otherwise.
Defined in[edit]
libraries/joomla/form/form.php
Importing[edit]
jimport( 'joomla.form.form' );
Source Body[edit]
public function loadFieldType($type, $new = true)
{
$key = md5($type);
$class = 'JFormField'.ucfirst($type);
// Return the field object if it already exists and we don't need a new one.
if (isset($this->_fieldTypes[$key]) && $new === false) {
return $this->_fieldTypes[$key];
}
if (!class_exists('JFormField')) {
jimport('joomla.form.formfield');
}
if (!class_exists('JFormFieldList')) {
require_once dirname(__FILE__).'/fields/list.php';
}
if (!class_exists($class)) {
$paths = self::addFieldPath();
// If the type is complex, add the base type to the paths.
if ($pos = strpos($type, '_')) {
// Add the complex type prefix to the paths.
for ($i = 0, $n = count($paths); $i < $n; $i++) {
// Derive the new path.
$path = $paths[$i].DS.strtolower(substr($type, 0, $pos));
// If the path does not exist, add it.
if (!in_array($path, $paths)) {
array_unshift($paths, $path);
}
}
// Break off the end of the complex type.
$type = substr($type, $pos+1);
}
// Try to find the field file.
jimport('joomla.filesystem.path');
if ($file = JPath::find($paths, strtolower($type).'.php')) {
require_once $file;
} else {
return false;
}
// Check once and for all if the class exists.
if (!class_exists($class)) {
return false;
}
}
// Instantiate a new field object.
$this->_fieldTypes[$key] = new $class($this);
return $this->_fieldTypes[$key];
}
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Examples[edit]
<CodeExamplesForm />