是否可以通过表单更改钩子访问在Drupal 8中使用内联实体表单创建的节点？

问题描述

我正在一个Drupal站点上，该站点使用对Childs和Parent内容类型的实体引用对Family内容类型进行建模。家庭是以单一形式输入的，我正在使用内联实体表单模块（IEF）来启用以相同形式输入父级和子级信息。我的目标是允许匿名用户通过填写​​此表单来创建用户帐户。当前，我有一个自定义模块，该模块实现hook_form_FORM_ID_alter并向Submit操作添加一个函数，该函数创建一个新用户帐户并设置外部表单节点（在这种情况下为Family节点）的所有者：

    function myModule_form_node_family_form_alter(&$form,&$form_state,$form_id){ 
        #register function on submit as that's when the node id of the created entity is available              
        $form['actions']['submit']['#submit'][] = 'signup_submit';
    }
    function signup_submit($form,&$form_state){
        #get node id of newly created entity
        $nid = $form_state->getValue('nid');
        #create user
        $email = $form_state->getValue('field_email_address')[0]['value'];
        $user = \Drupal\user\Entity\User::create();
        $user->setEmail($email);
        $user->enforceIsNew();
        $user->setPassword(getRandomPassword());
        $user->setUsername(genUsername($nid));
        if($res){
               #set user to be owner of newly created node
               dpm("User ".$user->id()."created successfully!");
               $node = node_load($nid);
               $node->setowner($user);
               $node->save();
        }
    }

我希望对使用类似模式的IEF创建的节点执行相同的操作：

function myModule_inline_entity_form_entity_form_alter(&$entity_form,&$form_state){
        $entity_form['actions']['submit']['#submit'][] = 'inline_submit';
}
function inline_submit(&$entity_form,&$form_state){
        $nid = $form_state->getValue('nid');
        dpm("nid of inline entity: ".$nid);
}

...但是它似乎不起作用。如果有人知道何时真正创建节点以及如何访问节点ID以便更改所有权，我将不胜感激！

解决方法

我最终找到了解决方案。对于内联表单，内容只有在完整表单提交后才真正提交，因此我可以从外部表单的表单提交钩子上从引用的实体中获取图片：

function myModule_form_node_FORM_ID_alter(&$form,&$form_state,$form_id){
        #register my on_submit callback
        $form['actions']['submit']['#submit'][] = 'myModule_form_submit';
}
function myModule_form_submit($form,&$form_state){
        $fnode = $form_state->getFormObject()->getEntity();
        #in my case the field was a multiple entity reference,so loop over each created node
        foreach($fnode->field_children->referencedEntities() as $cnode){
                # do stuff with the child node in $cnode
                $cnode->save();
        }
}