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101 lines
2.6 KiB
101 lines
2.6 KiB
5 years ago
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/*!
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* Module dependencies.
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*/
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'use strict';
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const NodeJSDocument = require('./document');
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const EventEmitter = require('events').EventEmitter;
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const MongooseError = require('./error/index');
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const Schema = require('./schema');
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const ObjectId = require('./types/objectid');
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const ValidationError = MongooseError.ValidationError;
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const applyHooks = require('./helpers/model/applyHooks');
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const isObject = require('./helpers/isObject');
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/**
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* Document constructor.
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*
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* @param {Object} obj the values to set
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* @param {Object} [fields] optional object containing the fields which were selected in the query returning this document and any populated paths data
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* @param {Boolean} [skipId] bool, should we auto create an ObjectId _id
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* @inherits NodeJS EventEmitter http://nodejs.org/api/events.html#events_class_events_eventemitter
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* @event `init`: Emitted on a document after it has was retrieved from the db and fully hydrated by Mongoose.
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* @event `save`: Emitted when the document is successfully saved
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* @api private
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*/
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function Document(obj, schema, fields, skipId, skipInit) {
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if (!(this instanceof Document)) {
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return new Document(obj, schema, fields, skipId, skipInit);
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}
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if (isObject(schema) && !schema.instanceOfSchema) {
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schema = new Schema(schema);
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}
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// When creating EmbeddedDocument, it already has the schema and he doesn't need the _id
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schema = this.schema || schema;
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// Generate ObjectId if it is missing, but it requires a scheme
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if (!this.schema && schema.options._id) {
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obj = obj || {};
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if (obj._id === undefined) {
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obj._id = new ObjectId();
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}
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}
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if (!schema) {
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throw new MongooseError.MissingSchemaError();
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}
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this.$__setSchema(schema);
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NodeJSDocument.call(this, obj, fields, skipId, skipInit);
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applyHooks(this, schema, { decorateDoc: true });
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// apply methods
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for (const m in schema.methods) {
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this[m] = schema.methods[m];
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}
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// apply statics
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for (const s in schema.statics) {
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this[s] = schema.statics[s];
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}
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}
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/*!
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* Inherit from the NodeJS document
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*/
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Document.prototype = Object.create(NodeJSDocument.prototype);
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Document.prototype.constructor = Document;
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/*!
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* ignore
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*/
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Document.events = new EventEmitter();
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/*!
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* Browser doc exposes the event emitter API
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*/
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Document.$emitter = new EventEmitter();
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['on', 'once', 'emit', 'listeners', 'removeListener', 'setMaxListeners',
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'removeAllListeners', 'addListener'].forEach(function(emitterFn) {
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Document[emitterFn] = function() {
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return Document.$emitter[emitterFn].apply(Document.$emitter, arguments);
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};
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});
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/*!
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* Module exports.
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*/
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Document.ValidationError = ValidationError;
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module.exports = exports = Document;
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