Drupal 7 hook_node_view 添加表单到节点的内容

问题描述

function example_module_node_view($node, $view_mode, $langcode)
{   
    $f =  drupal_get_form('example_module_form', $node);
    $node->content['data_collection_form'] = array('#value' => $f, '#weight' => 1); 
}

为什么表单不显示?难道我做错了什么?正在填充表单对象.我可以做 #markup => 'Something' 并且它有效.

Why doesn't the form display? Am I doing something wrong? The form object is being populated. I can do #markup => 'Something' and it works.

推荐答案

drupal_get_form 的返回实际上是一个渲染数组本身，所以你可以这样做:

The return from drupal_get_form is actually a render array itself so you could just do this:

$f = drupal_get_form('example_module_form', $node);
$f['#weight'] = 1;
$node->content['data_collection_form'] = $f;

如果你确实想用另一种方式来做，尽管表单应该是一个可渲染的元素"，所以键不应该以 # 为前缀:

If you do want to do it the other way though the form should be a renderable 'element', so the key shouldn't be prefixed by #:

$f = drupal_get_form('example_module_form', $node);
$node->content['data_collection_form'] = array(0 => $f, '#weight' => 1);

渲染数组中的所有条目的键以 # 为前缀都被视为属性，而那些不是的被视为子级"并递归渲染.

All entries in a render array with a key prefixed with # are considered properties, while those that aren't are considered 'children' and are recursively rendered.

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