当该字段是外键时，如何使用 OR 条件进行后续查询

Question

我在 sequelize 中需要一些关于这个查询的帮助，这个查询完全按照我想要的方式工作，但我不知道如何做那个或条件：

select * from 
core."Customers" c 

inner join core."Townhouses" t 
on t.id = c.townhouseid

inner join portal."TownhouseFreeFreights" tf 
on tf.townhouseid = t.id
or tf.townhouseid is null

where c.id = 1
and tf."minValue" >= 0

我的问题是那部分： 或tf.townhouseid为空

我应该在这里做什么：

getFreightRules(){
    return Customer.findAll({
      include: [{
        model: Townhouse,
        require: true,
        include:[{
          model: TownhouseFreeFreights,
        }]
      }]
    
    })
  }

Answer 1

像这样的东西应该可以工作 (https://sequelize.org/master/manual/model-querying-basics.html#examples-with--code-op-and--code--and--code-op-or--code-)


getFreightRules(){
    return Customer.findAll({
      include: [{
        model: Townhouse,
        require: true,
        include:[{
          model: TownhouseFreeFreights,
          where: {
           [Op.or]: [
             { tf.townhouseid: t.id },
             { tf.townhouseid: null }
           ]
          }
        }]
      }]
    
    })
  }

或者


getFreightRules(){
    return Customer.findAll({
      include: [{
        model: Townhouse,
        require: true,
        include:[{
          model: TownhouseFreeFreights,
          where: {
           tf.townhouseid: {
             [Op.or]: [t.id, null]
           }
         }
       }]
     }]
    })
  }

当该字段是外键时，如何使用 OR 条件进行后续查询

how make a query in sequelize with a OR condition when that field is the foreignkey

javascript

node.js

sequelize.js