Mongoose - Anyway to prevent middleware save hooks from executing under certain conditions (e.g. being saved as subdocument)?

Question

I have a schema Foo which has pre and post save hooks.

For a special debugging application I'm writing, I grab all the active Foo objects. Then, save them as a subdocument as part of a History schema.

When I save it as part of the subdocument, I do not want my pre/post save hooks to execute.

What's the best way to handle this?

I'd like to avoid having to extract all the data from the Foo object then saving in an new non-mongoose object.

Answer 1

You can define a field to your Foo object like hookEnabled and you can check it in your hook function. Let me give you an example;

Foo = new Schema({
    ...
    hookEnabled:{
        type: Boolean,
        required: false,
        default: true
    }
    ...
 });

And in your hook;

Foo.pre('save', function(next){
  self = this
  if (self.hookEnabled) {
    // dou your job here
    next();
  } else {
    // do nothing
    next();
  }
});

Before calling save function, you can set hookEnabled field as false like,

var fooModel = new Foo();
fooModel.hookEnabled = false;

Hope it helps