silverstripe-framework/forms/ImageField.php

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<?php
/**
* A field that will upload attached images within the CMS through an iframe.
* If you want to upload images without iframes, see {@link SimpleImageField}.
*
* @uses Image_Upload
*
* @package forms
* @subpackage fields-files
*/
class ImageField extends FileField {
public function Field($id = null) {
$data = $this->form->getRecord();
if($id && is_numeric($id)) {
$parentID = $id;
} elseif($data) {
$parentID = $data->ID;
} else {
$parentID = null;
}
if($data && $parentID && is_numeric($parentID)) {
$idxField = $this->name . 'ID';
$hiddenField = "<input class=\"hidden\" type=\"hidden\" id=\"" .
$this->id() . "\" name=\"$idxField\" value=\"" . $this->attrValue() . "\" />";
$parentClass = $data->class;
$parentField = $this->name;
$iframe = "<iframe name=\"{$this->name}_iframe\" src=\"images/iframe/$parentClass/$parentID/$parentField\" style=\"height: 152px; width: 525px; border: none;\" frameborder=\"0\"></iframe>";
return $iframe . $hiddenField;
} else {
$this->value = _t('ImageField.NOTEADDIMAGES', 'You can add images once you have saved for the first time.');
return FormField::Field();
}
}
public function saveInto($record) {
$data = $this->form->getRecord();
// if the record was written for the first time (has an arbitrary "new"-ID),
// update the imagefield to enable uploading
if($record->ID && $data && substr($data->ID, 0, 3) == 'new') {
FormResponse::update_dom_id($this->id(), $this->Field($record->ID));
}
}
/**
* Returns a readonly version of this field
*/
function performReadonlyTransformation() {
$field = new SimpleImageField_Disabled($this->name, $this->title, $this->value);
$field->setForm($this->form);
return $field;
}
}
?>