Mongoose.js Never Save Field Via Set

Question

Mongoose.js Never Save Field Via Set

Is there any way to mark a field as NOT modified in mongoose?

I have a mongoose schema:

var schema = mongoose.Schema({
    field          : { type : String   }
  , fieldGenerated : { type : [String] }
});

I want to make it so that fieldGenerated NEVER gets set via model.set( ... ).

The only way it should be set is in the pre-save middleware:

schema.pre( 'save', function( next ) {

    // Any way to mark fieldGenerated as NOT modified here?

    // I only want to set fieldGenerated if field was set.
    // I don't want fieldGenerated to be set any other way.
    if ( this.field && this.isModified( 'field' ) ) {
        this.fieldGenerated = this.field.split( ' ' );
        this.markModified( 'fieldGenerated' );
    }

    next();
}

Is there any way to accomplish this?

javascript
node.js
mongoose

Answer 1

Not directly, but how about if you just regenerate the field if it's been modified:

schema.pre( 'save', function( next ) {
    if ( this.field && ( this.isModified( 'field' ) || this.isModified( 'fieldGenerated' ) ) {
        this.fieldGenerated = this.field.split( ' ' );
    }
    next();
}