1/*!
  2 * Module dependencies.
  3 */
  4
  5var NodeJSDocument = require('./document'),
  6    EventEmitter = require('events').EventEmitter,
  7    MongooseError = require('./error'),
  8    Schema = require('./schema'),
  9    ObjectId = require('./types/objectid'),
 10    utils = require('./utils'),
 11    ValidationError = MongooseError.ValidationError,
 12    InternalCache = require('./internal');
 13
 14/**
 15 * Document constructor.
 16 *
 17 * @param {Object} obj the values to set
 18 * @param {Object} [fields] optional object containing the fields which were selected in the query returning this document and any populated paths data
 19 * @param {Boolean} [skipId] bool, should we auto create an ObjectId _id
 20 * @inherits NodeJS EventEmitter http://nodejs.org/api/events.html#events_class_events_eventemitter
 21 * @event `init`: Emitted on a document after it has was retrieved from the db and fully hydrated by Mongoose.
 22 * @event `save`: Emitted when the document is successfully saved
 23 * @api private
 24 */
 25
 26function Document(obj, schema, fields, skipId, skipInit) {
 27  if (!(this instanceof Document)) {
 28    return new Document(obj, schema, fields, skipId, skipInit);
 29  }
 30
 31
 32  if (utils.isObject(schema) && !schema.instanceOfSchema) {
 33    schema = new Schema(schema);
 34  }
 35
 36  // When creating EmbeddedDocument, it already has the schema and he doesn't need the _id
 37  schema = this.schema || schema;
 38
 39  // Generate ObjectId if it is missing, but it requires a scheme
 40  if (!this.schema && schema.options._id) {
 41    obj = obj || {};
 42
 43    if (obj._id === undefined) {
 44      obj._id = new ObjectId();
 45    }
 46  }
 47
 48  if (!schema) {
 49    throw new MongooseError.MissingSchemaError();
 50  }
 51
 52  this.$__setSchema(schema);
 53
 54  this.$__ = new InternalCache;
 55  this.$__.emitter = new EventEmitter();
 56  this.isNew = true;
 57  this.errors = undefined;
 58
 59  // var schema = this.schema;
 60
 61  if (typeof fields === 'boolean') {
 62    this.$__.strictMode = fields;
 63    fields = undefined;
 64  } else {
 65    this.$__.strictMode = this.schema.options && this.schema.options.strict;
 66    this.$__.selected = fields;
 67  }
 68
 69  var required = this.schema.requiredPaths();
 70  for (var i = 0; i < required.length; ++i) {
 71    this.$__.activePaths.require(required[i]);
 72  }
 73
 74  this.$__.emitter.setMaxListeners(0);
 75  this._doc = this.$__buildDoc(obj, fields, skipId);
 76
 77  if (!skipInit && obj) {
 78    this.init(obj);
 79  }
 80
 81  this.$__registerHooksFromSchema();
 82
 83  // apply methods
 84  for (var m in schema.methods) {
 85    this[m] = schema.methods[m];
 86  }
 87  // apply statics
 88  for (var s in schema.statics) {
 89    this[s] = schema.statics[s];
 90  }
 91}
 92
 93/*!
 94 * Inherit from the NodeJS document
 95 */
 96Document.prototype = Object.create(NodeJSDocument.prototype);
 97Document.prototype.constructor = Document;
 98
 99/*!
100 * Module exports.
101 */
102Document.ValidationError = ValidationError;
103module.exports = exports = Document;