Usage
*
*
* class Article extends DataObject {
* static $has_one = array('MyImage' => 'Image');
* }
* // use in your form constructor etc.
* $myField = new SimpleImageField('MyImage');
*
*
* Usage within a controller
*
* First add your $has_one relationship:
*
*
* static $has_one = array(
* 'FileName' => 'FileType'
* );
*
* (i.e. Image for a FileType)
*
* Then add your Field into your form:
*
*
* function Form() {
* return new Form($this, "Form", new FieldList(
* new SimpleImageField (
* $name = "FileTypeID",
* $title = "Upload your FileType"
* )
* ), new FieldList(
*
* // List the action buttons here - doform executes the function 'doform' below
* new FormAction("doform", "Submit")
*
* // List the required fields here
* ), new RequiredFields(
* "FileTypeID"
* ));
* }
* // Then make sure that the file is saved into the assets area:
* function doform($data, $form) {
* $file = new File();
* $file->loadUploaded($_FILES['FileTypeID']);
*
* // Redirect to a page thanking people for registering
* Director::redirect('thanks-for-your-submission/');
* }
*
*
* Your file should be now in the uploads directory
*
* @package forms
* @subpackage fields-files
*/
class SimpleImageField extends FileField {
function __construct($name, $title = null, $value = null, $form = null, $rightTitle = null, $folderName = null) {
parent::__construct($name, $title, $value, $form, $rightTitle, $folderName);
$this->getValidator()->setAllowedExtensions(array('jpg','gif','png'));
}
function Field() {
if($this->form) $record = $this->form->getRecord();
$fieldName = $this->name;
if(isset($record)&&$record) {
$imageField = $record->$fieldName();
} else {
$imageField = "";
}
$html = "
";
return $html;
}
/**
* Returns a readonly version of this field
*/
function performReadonlyTransformation() {
$field = new SimpleImageField_Disabled($this->name, $this->title, $this->value);
$field->setForm($this->form);
$field->setReadonly(true);
return $field;
}
}
/**
* Disabled version of {@link SimpleImageField}.
* @package forms
* @subpackage fields-files
*/
class SimpleImageField_Disabled extends FormField {
protected $disabled = true;
protected $readonly = true;
function Field() {
$record = $this->form->getRecord();
$fieldName = $this->name;
$field = "
";
if($this->value) {
// Only the case for DataDifferencer
$field .= $this->value;
} else {
if($record) $imageField = $record->$fieldName();
if($imageField && $imageField->exists()) {
if($imageField->hasMethod('Thumbnail')) $field .= "Thumbnail()->URL."\" />";
elseif($imageField->CMSThumbnail()) $field .= "CMSThumbnail()->URL."\" />";
else {} // This shouldn't be called but it sometimes is for some reason, so we don't do anything
}else{
$field .= "";
}
}
$field .= "
![](\"".$imageField-)
Thumbnail()->getURL()."\" />";
} else if($imageField->CMSThumbnail()) {
$html .= "