javascript - Mongoose.js: force always populate -

is there way instruct model populate field?

something like, have "field" populated in find query:

{field: schema.objectid, ref: 'ref', populate: true} 

?

with mongoose 4.0, can use query hooks in order autopopulate whatever want.

below example introduction document valeri karpov.

definition of schemas:

var personschema = new mongoose.schema({   name: string });  var bandschema = new mongoose.schema({   name: string,   lead: { type: mongoose.schema.types.objectid, ref: 'person' } });  var person = mongoose.model('person', personschema, 'people'); var band = mongoose.model('band', bandschema, 'bands');  var axl = new person({ name: 'axl rose' }); var gnr = new band({ name: "guns n' roses", lead: axl._id }); 

query hook autopopulate:

var autopopulatelead = function(next) {   this.populate('lead');   next(); };  bandschema.   pre('findone', autopopulatelead).   pre('find', autopopulatelead);  var band = mongoose.model('band', bandschema, 'bands');