与自定义实体和节点的视图关系

Question

我只有一个基表具有自定义实体，并且它的节点及其字段field_a被引用。现在我想创建这两个实体（节点和我的自定义实体）之间的关系。我可以得到结果工作，但我没有得到在视图字段部分列出的节点字段。

//基表的自定义实体是“clinical_trial_research_sites”

function clinical_trial_views_data_alter(&$data) { 
$data['clinical_trial_research_sites']['node'] = array(
    'title' => t('Clinical Trial'), 
    'help' => t('Field Reference Appear in Location Content type.'), 
    // Information of the referenced table!! 
    'relationship' => array(
     'handler' => 'views_handler_relationship', 
     'label' => t('Location'), 
     'base' => 'field_data_field_site_comp_code', // node field table name 
     'base field' => 'field_site_comp_code_value', // field column name of node field 
     'relationship field' => 'site_comp_code', // This is referencing field in my custom entity 
    ), 
); 
} 

我能获得SQL工作，内部连接工作，但意见不上市节点的所有领域，因为我想要显示的一些来自节点的字段也是!!我想我错过了一些信息来表达这种观点，即关系不仅仅是现场表，而是整个节点！

Answer 1

我通过从entityreference复制一些代码来修复它。我必须为这种关系使用不同的视图处理程序，并为该关系添加其他属性

function clinical_trial_views_data_alter(&$data) { 

    $data['clinical_trial_research']['clinical_trial_research_sites'] = array(
    'title' => t('Clinical Trial Research Sites'), 
    'help' => t('Field Reference Appear in Clinical Trial Research Sites.'), 
    'relationship' => array(
     'handler' => 'views_handler_relationship', 
     'label' => t('Clinical Trial Research Sites'), 
     'base' => 'clinical_trial_research_sites', 
     'base field' => 'study_num', 
     'relationship field' => 'study_num', 
    ), 
); 
    // The reference field in the node entity is not entity reference , its just a basic text field 
    $data['clinical_trial_research_sites']['site_comp_code']['relationship'] = array(
    'handler' => 'views_handler_relationship_entity_reverse', 
    'field_name' => 'field_site_comp_code', 
    'field table' => 'field_data_field_site_comp_code', 
    'field field' => "field_site_comp_code_value", 
    'base' => 'node', 
    'base field' => 'nid', 
    'title' => t('Referencing entity'), 
    'help' => t('Field Reference Appear in Location Content type.'), 
    'title' => t('Location'), 
); 
}