我有一系列像这样的学校:
{
"schools": [
{
"name": "S1",
"id": 1
},
{
"name": "S2",
"id": 2
},
{
"name": "S3",
"id": 3
}
]
}
每个学校都有时间表。为了得到它,我在一个承诺中迭代学校数组,当我得到响应时,我得到一个像这样的数组
{
"schools": [
{
"name": "S1",
"id": 1
},
{
"name": "S2",
"id": 2
},
{
"name": "S3",
"id": 3
}
],
"schedules": [
[],
[
{
"id_schedule": 58,
"hour1": "13:00:00",
"hour2": "20:00:00",
"id_schools_schedule": 2
}
],
[
{
"id_schedule": 59,
"hour1": "06:30:00",
"hour2": "22:30:00",
"id_schools_schedule": 3
}
]
]
}
我想知道。如何确定每个项目的响应? 这是我的代码
for (var i =0; i < datosRes.schools.length; i++){
array_horarios.push(ObtSchedule(datosRes.schools, i))
}
Promise.all(array_horarios).then(response => {
datosRes.horarios = response;
eq.local = data;
}).catch(err => {
return res.json(200,{"datos":datosRes});
})
function ObtHorario(schools, i){
return new Promise(function(resolve, reject){
var id_school = schools[i].id;
Mod_Schedule.obtSchedule(id_school,function(error, data){
if(error || data.error){
errorDB = {"error_log": error, "error_data": data.error};
reject(errorDB)
}else{
resolve(data)
}
})
})
}
我做错了什么? 我得到了回复,但只是我想在每个学校项目中添加时间表
提前致谢
答案 0 :(得分:0)
第一件事: 您可以向一个请求发送一个响应。因此,发送多个回复的问题无效。
在这里你可以做什么,你可以按照他们的日程安排获得一系列学校。
如果您使用的是MongoDB,请执行以下操作:
使用Aggregate查询:
db.schools.aggregate([
{
$match: {} // Your condition to match schools here
},
{
$lookup: {
from:"schedules",
localField: id,
foreignField: id_schools_schedule,
as: "schedulesData"
}
},
]);
在这里,您将获得如下数据:
[
{
"name": "S1",
"id": 1,
"schedulesData": []
},
{
"name": "S2",
"id": 2,
"schedulesData": [{
"id_schedule": 58,
"hour1": "13:00:00",
"hour2": "20:00:00",
"id_schools_schedule": 2
}]
},
{
"name": "S3",
"id": 3,
"schedulesData": [
{
"id_schedule": 59,
"hour1": "06:30:00",
"hour2": "22:30:00",
"id_schools_schedule": 3
}
]
}
]