Question

我喜欢2张桌子;

Property {id, name, address_id}
Address {id, city, country, add_line_1, ...}

我通过address_id将Property链接到Address。如何配置Bookshelf模型以通过address_id加载具有相关地址的Property 我尝试过喜欢的东西;

PROPERTY = bookshelf.Model.extend({
   tableName: 'PROPERTY',

   address: function() {
       return this.hasOne(ADDRESS, 'address_id');
   }
});

ADDRESS = bookshelf.Model.extend({
   tableName: 'ADDRESS',

   property: function() {
       return this.belongsTo(PROPERTY);
   }
});

错误：＆＃34; where子句＆＃34;中的未知ADDRESS.address_id;

Answer 1

从documentation hasOne()期望外键在其他表上。因此，请尝试将模型更改为：

PROPERTY = bookshelf.Model.extend({
   tableName: 'PROPERTY',

   address: function() {
       return this.belongsTo(ADDRESS, 'address_id');
   }
});

ADDRESS = bookshelf.Model.extend({
   tableName: 'ADDRESS',

   property: function() {
       return this.hasOne(PROPERTY);
   }
});

并使用示例查询：

PROPERTY.fetchAll({withRelated:'address'}).then((a)=>
  {console.log(a.toJSON())});

1-1与书架的关系负荷

1 个答案: