在 sequelize 中查询 where 关联?-前端问题

querying on where association in sequelize?(在 sequelize 中查询 where 关联?)

本文介绍了在 sequelize 中查询 where 关联?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

where 子句用于内连接的 sequelize.我的查询是

where clause use in sequelize in inner joins. My query is

SELECT Cou.country_id,cou.country_name, Sta.state_id, Sta.state_name
FROM hp_country Cou
INNER JOIN hp_state Sta ON Cou.country_id = Sta.hp_country_id
WHERE (Cou.country_status=1 AND Sta.state_status=1 AND Cou.country_id=1)
AND (Sta.state_name LIKE '%ta%');

我在sequelize中写的代码是

I wrote in sequelize code is

hp_country.findAll({
    where: {
        '$hp_state.state_status$': 1
    },
    include: [
        {model: hp_state}
    ]
})

它产生的错误是:

SELECT `hp_country`.`country_id`, `hp_country`.`country_name`, `hp_country`.`country_status`, `hp_country`.`created_date`, `hp_country`.`update_date` FROM `hp_country` AS `hp_country` WHERE `hp_state`.`state_status` = 1;
Unhandled rejection SequelizeDatabaseError: ER_BAD_FIELD_ERROR: Unknown column 'hp_state.state_status' in 'where clause'

推荐答案

hp_country.findAll({
where: {
    //main AND condition
    $and: [
        //first joint condition
        {
            $and: [
                { country_status: 1 },
                { country_id: country_id },
                Sequelize.literal("hp_states.state_status = 1"),
                Sequelize.literal("`hp_states.hp_districts`.`district_status`=1"),
                Sequelize.literal("`hp_states.hp_districts.hp_cities`.`city_status`=1"),
                Sequelize.literal("`hp_states.hp_districts.hp_cities.hp_locations`.`location_status`=1"),
                Sequelize.literal("`hp_states.hp_districts.hp_cities.hp_locations.hp_sub_locations`.`sub_location_status`=1"),
                Sequelize.literal("`hp_states.hp_districts.hp_cities`.`city_name` LIKE '%"+city+"%'")


            ]
        },

        {
            $or: [
                Sequelize.literal("`hp_states.hp_districts.hp_cities.hp_locations`.`location_name` LIKE '%"+query+"%'"),
                Sequelize.literal("`hp_states.hp_districts.hp_cities.hp_locations.hp_sub_locations`.`sub_location_name` LIKE '%"+query+"%'"),
                Sequelize.literal("`hp_states.hp_districts.hp_cities.hp_locations.hp_sub_locations.hp_property`.`property_name` LIKE '%"+query+"%'"),
                Sequelize.literal("`hp_states.hp_districts.hp_cities.hp_locations.hp_sub_locations.hp_property.hp_builder`.`builders_name` LIKE '%"+query+"%'")

            ]
        }
    ]
},
attributes: ['country_id', 'country_name'],
required:true,
include: [
    {
        model: hp_state,
        attributes: ['state_id', 'state_name'],
        required:true,

        include: [
            {
                model: hp_district,
                attributes: ['district_id', 'district_name'],
                required:true,
                include: [
                    {
                        model: hp_city,
                        attributes: ['city_id', 'city_name'],
                        required:true,

                        include: [
                            {
                                model: hp_location,
                                attributes: ['location_id', 'location_name'],
                                required:true,
                                include: [
                                    {
                                        model: hp_sub_location,
                                        attributes: ['sub_location_id', 'sub_location_name'],
                                        required:true,
                                        include: [
                                            {
                                                model: hp_property,
                                                attributes: ['property_id', 'property_name'],
                                                required: true,
                                                include: [
                                                    {
                                                        model:hp_builders,
                                                        attributes: ['builders_id', 'builders_name'],
                                                        required: true

                                                    }
                                                    ]
                                            }
                                            ]


                                    }]

                            }]

                    }]
            }
        ]
    }
]

})

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