目前我有一个表格
class Project extends AbstractType {
public function buildForm(FormBuilder $builder, array $options) {
$builder->add('name');
$builder->add('description', 'textarea');
$builder->add('iconFile', 'file', array('label' => 'Icon', 'required' => false));
}
// ...
}
到目前为止,我正在使用编辑和删除。但是现在,在编辑“模式”中,我想让用户清除icon
项目。我想我可以添加一个单选按钮,但我需要它在添加模式下处于“非活动状态”。现在我正在处理我的模型中的图像上传,我希望有它(除非有更好的地方来做)
/**
* If isDirty && iconFile is null: deletes old icon (if any).
* Else, replace/upload icon
*
* @ORM\PrePersist
* @ORM\PreUpdate
*/
public function updateIcon() {
$oldIcon = $this->iconUrl;
if ($this->isDirty && $this->iconFile == null) {
if (!empty($oldIcon) && file_exists(APP_ROOT . '/uploads/' . $oldIcon))
unlink($oldIcon);
} else {
// exit if not dirty | not valid
if (!$this->isDirty || !$this->iconFile->isValid())
return;
// guess the extension
$ext = $this->iconFile->guessExtension();
if (!$ext)
$ext = 'png';
// upload the icon (new name will be "proj_{id}_{time}.{ext}")
$newIcon = sprintf('proj_%d_%d.%s', $this->id, time(), $ext);
$this->iconFile->move(APP_ROOT . '/uploads/', $newIcon);
// set icon with path to icon (relative to app root)
$this->iconUrl = $newIcon;
// delete the old file if any
if (file_exists(APP_ROOT . '/uploads/' . $oldIcon)
&& is_file(APP_ROOT . '/uploads/' . $oldIcon))
unlink($oldIcon);
// cleanup
unset($this->iconFile);
$this->isDirty = false;
}
}