Last modified: Mon Mar 02 2020 07:15:13 GMT+0000 (Coordinated Universal Time)

Mongoose Model Methods

• find(criteria, [fields], [options], [callback]): find document; callback has error and documents arguments
• count(criteria, [callback])): return a count; callback has error and count arguments
• findById(id, [fields], [options], [callback]): return a single document by ID; callback has error and document arguments
• findByIdAndUpdate(id, [update], [options], [callback]): executes MongoDB's findAndModify to update by ID
• findByIdAndRemove(id, [options], [callback]): executes MongoDB's findAndModify to remove
• findOne(criteria, [fields], [options], [callback]): return a single document; callback has error and document arguments
• findOneAndUpdate([criteria], [update], [options], [callback]): executes MongoDB's findAndModify to update
• findOneAndRemove(id, [update], [options], [callback]): executes MongoDB's findAndModify to remove
• update(criteria, update, [options], [callback]): update documents; callback has error, and count arguments
• create(doc(s), [callback]): create document object and save it to database; callback has error and doc(s) arguments
• remove(criteria, [callback]): remove documents; callback has error argument

Mongoose Document Methods

• save([callback]): save the document; callback has error, doc and count arguments
• set(path, val, [type], [options]): set value on the doc's property
• get(path, [type]): get the value
• isModified([path]): check if the property has been modified
• populate([path], [callback]): populate reference
• toJSON(options): get JSON from document
• validate(callback): validate the document

Query Helpers

animalSchema.query.byName = function(name) {
  return this.where({ name: new RegExp(name, "i") })
}

var Animal = mongoose.model("Animal", animalSchema)

Animal.find()
  .byName("fido")
  .exec(function(err, animals) {
    console.log(animals)
  })

Animal.findOne()
  .byName("fido")
  .exec(function(err, animal) {
    console.log(animal)
  })