cakephp - 获取特定类别的项目

Question

我没有获取某个特定项目的类别。 模型与关系

• 1项目有许多ProjectCategory（中间表是NodeAssociation）

• 我使用的hasAndBelongsToMany关系

  /示范项目/

  public $hasAndBelongsToMany = array(
      'ProjectCategory' => array(
       'className' => 'ProjectCategory', 
       'joinTable' => 'NodeAssociation', 
       'foreignKey' => 'skin_node_id', 
       'associationForeignKey' => 'source_node_id' 
      ) 
  ); 
  

/SQL/

SELECT pc.id，pc.cname AS类

FROM项目p

JOIN nodeassociation NA

ON p.id = na.source_node_id和p.id = 10001

JOIN projectcategory pc

ON na.sink_node_id = pc.id AND sink_node_entity ='ProjectCategory';

FUNCTION in ProjectsController 

    $joins = array(
       array('table' => 'nodeassociation', 
        'alias' => 'NodeAssociation', 
        'conditions' => array(
         'Project.id = NodeAssociation.source_node_id', 
        ) 
       ), 
       array('table' => 'projectcategory', 
        'alias' => 'ProjectCategory', 
        'conditions' => array(
         'NodeAssociation.sink_node_id = ProjectCategory.id', "NodeAssociation.sink_node_entity='ProjectCategory'" 
        ) 
       ) 
      ); 

      $categories = $this->Project->ProjectCategory->find('all', array('joins' => $joins, 
       'fields' => array('ProjectCategory.id, ProjectCategory.cname'), 
       'recursive' => -1, 
       'conditions' => array('Project.id' => 10001))); 

的错误，在我看来是

Error: SQLSTATE[42P01]: Undefined table: 7 ERRO: faltando entrada para tabela "Project" na cláusula FROM LINE 1: ...ublic"."nodeassociation" AS "NodeAssociation" ON ("Project"....^

我究竟做错了什么？

问候

Answer 1

设置这在您的项目模型：

public $useTable = 'project';