Options passed to `new mongoose.Mongoose` instance are not used

[niftylettuce]

For example, the logic here does not use options object passed to the constructor and therefore options cannot be configured on new instances without having to manually call .set('some', 'value);.

mongoose/lib/index.js

Lines 60 to 94 in 61f698c

	function Mongoose(options) {
	this.connections = [];
	this.models = {};
	this.modelSchemas = {};
	// default global options
	this.options = {
	pluralization: true
	};
	const conn = this.createConnection(); // default connection
	conn.models = this.models;
	this._pluralize = legacyPluralize;
	// If a user creates their own Mongoose instance, give them a separate copy
	// of the `Schema` constructor so they get separate custom types. (gh-6933)
	if (!options || !options[defaultMongooseSymbol]) {
	const _this = this;
	this.Schema = function() {
	this.base = _this;
	return Schema.apply(this, arguments);
	};
	this.Schema.prototype = Object.create(Schema.prototype);
	Object.assign(this.Schema, Schema);
	this.Schema.base = this;
	this.Schema.Types = Object.assign({}, Schema.Types);
	} else {
	// Hack to work around babel's strange behavior with
	// `import mongoose, { Schema } from 'mongoose'`. Because `Schema` is not
	// an own property of a Mongoose global, Schema will be undefined. See gh-5648
	for (const key of ['Schema', 'model']) {
	this[key] = Mongoose.prototype[key];
	}
	}
	this.Schema.prototype.base = this;

[niftylettuce]

ty!