从数组中删除一个元素，即在 Object 内

Question

In my To-Do app, when a logged-in User completes a task, I would like to clear it from the MongoDB database.

Here is the code for my Schema.

const user = new mongoose.Schema({
    username : String,
    password : String,
    task : [{
        text : String,
        day : String,
        reminder : Boolean,
    ]}
 })
    

For example , if Daryl completed text: "Gym" & day: "Feb 4th 5.30pm" , I would like to only remove task[0] from Daryl's task Array.

Here is my attempt at doing so using Mongoose,

app.delete("/tasks", (req,res) => {
    User.findOne( {_id : req.user.id}).then((target) => {
        target.task.remove({text : req.body.text, day : req.body.day})
        })
}) 

1. User.findOne({_id: req.user.id}) to only target the person that logged in
2. Once targeted, access task array using.task
3. and use.remove along with filters, to remove that entry from the array

I have console.logged() all the variables and it tallies with the data fields, however the entry is not being removed. What am I doing wrong?

Answer 1

I managed to solve my problem, hopefully this helps someone else

app.delete("/tasks", (req, res) => {
    User.findByIdAndUpdate(req.user.id, {$pull: {"task": {text: req.body.text}}}, {safe: true, upsert: true},
        function (err, node) {
        // console.log here for debugging, if you want
        })
})

This successfully erases items based on

1. req.user.id
2. "task": {//whatever your stricter conditions are}

I still don't understand why my earlier attempts failed, but at least this one works.