Simple Chat Room in NodeJS, expressJS and mongoDB in Docker Swarm
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4 years ago
'use strict';
const documentSchemaSymbol = require('../../helpers/symbols').documentSchemaSymbol;
const get = require('../../helpers/get');
const utils = require('../../utils');
let Document;
const getSymbol = require('../../helpers/symbols').getSymbol;
const scopeSymbol = require('../../helpers/symbols').scopeSymbol;
/*!
* exports
*/
exports.compile = compile;
exports.defineKey = defineKey;
/*!
* Compiles schemas.
*/
function compile(tree, proto, prefix, options) {
Document = Document || require('../../document');
const keys = Object.keys(tree);
const len = keys.length;
let limb;
let key;
for (let i = 0; i < len; ++i) {
key = keys[i];
limb = tree[key];
const hasSubprops = utils.isPOJO(limb) && Object.keys(limb).length &&
(!limb[options.typeKey] || (options.typeKey === 'type' && limb.type.type));
const subprops = hasSubprops ? limb : null;
defineKey(key, subprops, proto, prefix, keys, options);
}
}
/*!
* Defines the accessor named prop on the incoming prototype.
*/
function defineKey(prop, subprops, prototype, prefix, keys, options) {
Document = Document || require('../../document');
const path = (prefix ? prefix + '.' : '') + prop;
prefix = prefix || '';
if (subprops) {
Object.defineProperty(prototype, prop, {
enumerable: true,
configurable: true,
get: function() {
const _this = this;
if (!this.$__.getters) {
this.$__.getters = {};
}
if (!this.$__.getters[path]) {
const nested = Object.create(Document.prototype, getOwnPropertyDescriptors(this));
// save scope for nested getters/setters
if (!prefix) {
nested.$__[scopeSymbol] = this;
}
nested.$__.nestedPath = path;
Object.defineProperty(nested, 'schema', {
enumerable: false,
configurable: true,
writable: false,
value: prototype.schema
});
Object.defineProperty(nested, documentSchemaSymbol, {
enumerable: false,
configurable: true,
writable: false,
value: prototype.schema
});
Object.defineProperty(nested, 'toObject', {
enumerable: false,
configurable: true,
writable: false,
value: function() {
return utils.clone(_this.get(path, null, {
virtuals: get(this, 'schema.options.toObject.virtuals', null)
}));
}
});
Object.defineProperty(nested, 'toJSON', {
enumerable: false,
configurable: true,
writable: false,
value: function() {
return _this.get(path, null, {
virtuals: get(_this, 'schema.options.toJSON.virtuals', null)
});
}
});
Object.defineProperty(nested, '$__isNested', {
enumerable: false,
configurable: true,
writable: false,
value: true
});
const _isEmptyOptions = Object.freeze({
minimize: true,
virtuals: false,
getters: false,
transform: false
});
Object.defineProperty(nested, '$isEmpty', {
enumerable: false,
configurable: true,
writable: false,
value: function() {
return Object.keys(this.get(path, null, _isEmptyOptions) || {}).length === 0;
}
});
compile(subprops, nested, path, options);
this.$__.getters[path] = nested;
}
return this.$__.getters[path];
},
set: function(v) {
if (v instanceof Document) {
v = v.toObject({ transform: false });
}
const doc = this.$__[scopeSymbol] || this;
doc.$set(path, v);
}
});
} else {
Object.defineProperty(prototype, prop, {
enumerable: true,
configurable: true,
get: function() {
return this[getSymbol].call(this.$__[scopeSymbol] || this, path);
},
set: function(v) {
this.$set.call(this.$__[scopeSymbol] || this, path, v);
}
});
}
}
// gets descriptors for all properties of `object`
// makes all properties non-enumerable to match previous behavior to #2211
function getOwnPropertyDescriptors(object) {
const result = {};
Object.getOwnPropertyNames(object).forEach(function(key) {
result[key] = Object.getOwnPropertyDescriptor(object, key);
// Assume these are schema paths, ignore them re: #5470
if (result[key].get) {
delete result[key];
return;
}
result[key].enumerable = [
'isNew',
'$__',
'errors',
'_doc',
'$locals',
'$op',
'__parentArray',
'__index',
'$isDocumentArrayElement'
].indexOf(key) === -1;
});
return result;
}