Question

我在这段代码上有3个表，表格是：

用户 - 提供有关用户的信息小部件 - 有关小部件的信息 user_widgets - 用于前几个表之间的m-n关系

除了其他2个表的ID之外，最后一个表有2个额外字段：读取和写入

我用来连接这些表的代码是

 Widget.belongsToMany(User, { through:User_widget, foreignKey: 'widget_id' });
 User.belongsToMany(Widget, { through:User_widget, foreignKey: 'user_id' });

User_widget的别名是＆＃34; perms＆＃34;，所以当我打电话

User.findOne ... then(function(user){
   user.getWidgets().then(function(widgets) {

在返回的小部件对象中，我有perms对象，读取和写入2个字段，所以一切正常。

我的问题是我需要过滤小部件，这样我才能获得我读过的小部件。

我已经尝试了

user.getWidgets({
   where : {
      read : false
   }})

但它产生一个像

这样的SQL查询

SELECT "widget"."id", "widget"."name", "perms"."widget_id" AS "perms.widget_id", "perms"."user_id" AS "perms.user_id", "perms"."read" AS "perms.read", "perms"."write" AS "perms.write" 
FROM "widgets" AS "widget" 
WHERE "widget"."read" = false 
INNER JOIN "user_widget" AS "perms" ON "widget"."id" = "perms"."widget_id" AND "perms"."user_id" = '5';

我需要这样的查询：

SELECT "widget"."id", "widget"."name", "perms"."widget_id" AS "perms.widget_id", "perms"."user_id" AS "perms.user_id", "perms"."read" AS "perms.read", "perms"."write" AS "perms.write" 
FROM "widgets" AS "widget" 
INNER JOIN "user_widget" AS "perms" ON "widget"."id" = "perms"."widget_id" AND "perms"."user_id" = '5' AND "perms"."read" = false;

Answer 1

尝试：

user.getWidgets({
  through: {
    where : {
      read : false
    }
  }
})

在哪里使用连接表中的列

1 个答案: