修改以编程方式缺少hostEntity字段的字段集合

时间:2013-07-18 18:51:15

标签: drupal drupal-7 drupal-field-collection

我正在尝试修改已存在的节点中的字段集合,因此我可以在3的数组中的第一个元素上更改图像。问题是,当我执行entity_load或entity_load_single时,未设置hostEntity信息所以当我做的时候:

$field_collection_item->save(true); // with or without the true
// OR
$fc_wrapper->save(true); // with or without the true

我收到以下错误:

Exception: Unable to save a field collection item without a valid reference to a host entity. in FieldCollectionItemEntity->save()

当我print_r字段集实体时,hostEntity:protected字段确实是空的。我的字段集合设置如下:

  • field_home_experts
    1. 专家图片< ---只想更改此数据并保留以下内容
      • field_expert_image
      • 图像
    2. 专家名称
      • field_expert_name
      • 文本
    3. 专家名称
      • field_expert_title
      • 文本

以下是我尝试用来修改现有节点字段集的代码:

$node = getNode(1352); // Get the node I want to modify

// There can be up to 3 experts, and I want to modify the image of the first expert
$updateItem = $node->field_home_experts[LANGUAGE_NONE][0];

if ($updateItem) { // Updating
    // Grab the field collection that currently exists in the 0 spot
    $fc_item = reset(entity_load('field_collection_item', array($updateItem)));

    // Wrap the field collection entity in the field API wrapper
    $fc_wrapper = entity_metadata_wrapper('field_collection_item', $fc_item);

    // Set the new image in place of the current
    $fc_wrapper->field_expert_image->set((array)file_load(4316));

    // Save the field collection
    $fc_wrapper->save(true);

    // Save the node with the new field collection (not sure this is needed)
    node_save($node);
}       

非常感谢任何帮助,我对Drupal整体来说还是一个新手(最终用户或开发者)

2 个答案:

答案 0 :(得分:6)

好吧所以我想我已经弄明白了,我写了一个函数来设置字段集合值:

// $node: (obj) node object returned from node_load()
// $collection: (string) can be found in drupal admin interface: 
//              structure > field collections > field name
// $fields: (array) see usage below
// $index: (int) the index to the element you wish to edit           

function updateFieldCollection($node, $collection, $fields = Array(), $index = 0) {
    if ($node && $collection && !empty($fields)) {
        // Get the field collection ID
        $eid = $node->{$collection}[LANGUAGE_NONE][$index]['value'];

        // Load the field collection with the ID from above
        $entity = entity_load_single('field_collection_item', array($eid));

        // Wrap the loaded field collection which makes setting/getting much easier
        $node_wrapper = entity_metadata_wrapper('field_collection_item', $entity);

        // Loop through our fields and set the values
        foreach ($fields as $field => $data) {
            $node_wrapper->{$field}->set($data);
        }

        // Once we have added all the values we wish to change then we need to 
        // save. This will modify the node and does not require node_save() so
        // at this point be sure it is all correct as this will save directly
        // to a published node 
        $node_wrapper->save(true);
    }
}

用法:

// id of the node you wish to modify
$node = node_load(123); 

// Call our function with the node to modify, the field collection machine name
// and an array setup as collection_field_name => value_you_want_to_set
// collection_field_name can be found in the admin interface:
// structure > field collections > manage fields
updateFieldCollection(
    $node,
    'field_home_experts',
    array (
        'field_expert_image' => (array)file_load(582), // Loads up an existing image
        'field_expert_name' => 'Some Guy',
        'field_expert_title' => 'Some Title',
    )
);

希望这可以帮助其他人,因为我花了一整天的时间试图让它工作(希望我不会永远在Drupal7中成为一个菜鸟)。正确地将格式化文本设置为set()可能存在问题,但我不确定此时是什么,所以请记住(如果您的字段格式为filtered_html,例如,不确定是否会正确设置而不做其他事情。)

祝你好运! 杰克

答案 1 :(得分:0)

在使用上述功能后,我仍然收到问题中提到的错误。 这对我有用:

function updateFieldCollection($node, $collection, $fields = Array(), $index = 0) {
  $eid = $node->{$collection}[LANGUAGE_NONE][$index]['value'];
  $fc_item = entity_load('field_collection_item', array($eid));
  foreach ($fields as $field => $data) {
    $fc_item[$eid]->{$field}[LANGUAGE_NONE][0]['value'] = $data;
  }
  $fc_item[$eid]->save(TRUE);
}

我希望这对某人有所帮助,因为我花了很长时间才能让这个工作。