Mongoose: how to prevent null values being added to array of ObjectId

Question

Title says it all. Below is a schema property definition that I thought would work, but doesn't do the job. I figured required: true on the type object should work?

  users: {
    type: [
        {
          type: Schema.Types.ObjectId,
          ref: 'User',
          required: true
        }
    ],
    default: []
  }

the following query allows a null value to be added to the array:

MyModel.findByIdAndUpdate(id, {$addToSet: {users: ['']}})

Jeff B · Accepted Answer · 2018-08-22 16:23:31Z

1

aaaaaaaand, of course as soon as I post to SO, i find the answer for myself. need to set option runValidators: true on update...

This is the real reason I post to SO, its like always carrying an umbrella, its guaranteed not to rain.

answered Aug 22, 2018 at 16:23

Jeff B

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