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,我使用的是编辑和删除功能。但是现在,在编辑“模式”下,我希望允许用户清除项目的
icon
。我想我可以添加一个单选按钮,但是在添加模式下,我需要使其处于“非 Activity 状态”。目前,我正在模型中处理图片上传,希望在那里保存(除非有更好的放置位置)/**
* 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;
}
}
最佳答案
您可以使用数据在表单构建过程中放置条件:
class Project extends AbstractType {
public function buildForm(FormBuilder $builder, array $options) {
$builder->add('name');
$builder->add('description', 'textarea');
$builder->add('iconFile', 'file', array('label' => 'Icon', 'required' => false));
if ($builder->getData()->isNew()) { // or !getId()
$builder->add('delete', 'checkbox'); // or whatever
}
}
// ...
}
关于forms - 使用相同的Symfony2表单进行编辑和删除(字段中的差异),我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/10498807/