Question

我正在尝试从要使用多个条件的表中过滤数据。当我在查询中应用它显示应用程序错误。怎么做？

我正在使用nodejs框架，express，sequelize和mysql。

router.get('/booking-information', function (req, res) {
  // Get orders
  Promise.all([Order.findAll({
    /*where: {
      endDate: null,
    },*/
    order: [
    ['id', 'DESC'],
    ]
    }),
    Professional.findAll({where: {status : '1'}})
  ])
    .then(([orders, professionals]) => {
      orders.map((order) => {
        let professionalsInSameArea = professionals.filter((professional) => {
          return (professional.service === order.service || professional.secondary_service LIKE '%' + order.service + '%') && (professional.area === order.area || order.area === professional.secondary_area);
        });
        order.professionals = [...professionalsInSameArea]
        return order;
      });
      res.render('booking-information', {title: 'Technician', orders: orders, user: req.user});
    })
      .catch((err) => {
        console.error(err);
      });
});

我想筛选出订单所在领域和服务相同的专业人员。

Answer 1

you can use Op operator in query
like :-

const Op = Sequelize.Op

{
  [Op.or]: [
    {
      fieldName: {
        [Op.like]: 'abc%'
      }
    },
    {
      fieldName: {
        [Op.like]: '%abc%'
      }
    }
  ]
}

Answer 2

信不信由你，您只能使用String.indexOf函数，因为

根据定义，SET @cumulative := 0; SELECT YEAR(log_at) as year, MONTH(log_at) as month, DAY(log_at) as day, SUM(ev) as dailyTotal, @cumulative := @cumulative + sum(ev) AS cumulative, count(*) as count FROM tracks WHERE user_id = 1 GROUP BY year, month, day ORDER BY year, month, day ASC表示String LIKE %word% 包含 String：

word

如何在续集，节点JS中的条件条件下使用

2 个答案: