获取具有关系的两列

Question

我和 Jobeet 一起学习 Symfony 和 Doctrine。我想添加一些修改。 默认是： http://www.symfony-project.org/jobeet/1_4/Doctrine /en/03

JobeetCategory:
  actAs: { Timestampable: ~ }
  columns:
    name: { type: string(255), notnull: true, unique: true }

JobeetJob:
  actAs: { Timestampable: ~ }
  columns:
    category_id:  { type: integer, notnull: true }
 (...)
  relations:
    JobeetCategory: { onDelete: CASCADE, local: category_id, foreign: id, foreignAlias: JobeetJobs } 

如果我进入表单（创建新的）我有： http://www.symfony-project.org/images/jobeet /1_4/03/job.png

类别 id - 选择列表

//BaseJobeetJobForm.class.php :

 'category_id'  => new sfWidgetFormDoctrineChoice(array('model' => $this->getRelatedModelName('JobeetCategory'), 'add_empty' => false)),

//sfFormDoctrine.class.php :

  protected function getRelatedModelName($alias)
  {
    $table = Doctrine_Core::getTable($this->getModelName());

    if (!$table->hasRelation($alias))
    {
      throw new InvalidArgumentException(sprintf('The "%s" model has to "%s" relation.', $this->getModelName(), $alias));
    }

    $relation = $table->getRelation($alias);

    return $relation['class'];
  }

我怎样才能做类似的事情：

JobeetCategory:
  actAs: { Timestampable: ~ }
  columns:
    name: { type: string(255), notnull: true, unique: true }
    nametwo: { type: string(255), notnull: true, unique: true }

JobeetJob:
  actAs: { Timestampable: ~ }
  columns:
    category_id:  { type: integer, notnull: true }
    nametwo_id:  { type: integer, notnull: true }
 (...)
  relations:
        JobeetCategory: { onDelete: CASCADE, local: category_id, foreign: id, foreignAlias: JobeetJobs } 
JobeetCategory: { onDelete: CASCADE, local: nametwo_id, foreign: id, foreignAlias: JobeetJobsTwo } 

我怎样才能以“nametwo”形式显示？我将列出两个选项（category_id（已经）和 nametwo_id:）

Answer 1

您想在 jobeetjob 和 jobeetcategory 之间建立两个不同的关系。
您必须清楚地命名该关系，如下所示：

    JobeetJob:   
     actAs: { Timestampable: ~ }  
     columns:
       category_id:  { type: integer, notnull: true }
       nametwo_id:  { type: integer, notnull: true }  (...)   
     relations:
       JobeetCategoryOne: 
         class: JobeetCategory
         onDelete: CASCADE
         local: category_id
         foreign: id
         foreignAlias: JobeetJobs  
       JobeetCategoryTwo: 
         class: JobeetCategory
         onDelete: CASCADE
         local: nametwo_id, foreign: id,
         foreignAlias: JobeetJobsTwo