82 lines
1.7 KiB
JavaScript
82 lines
1.7 KiB
JavaScript
/**
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* Expose `Model`.
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*/
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module.exports = Model;
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/**
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* Module dependencies.
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*/
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var AsteroidModule = require('asteroid-module')
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, debug = require('debug')('model')
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, util = require('util')
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, inherits = util.inherits
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, assert = require('assert');
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/**
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* Create a new `Model` with the given `options`.
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*
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* @param {Object} options
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* @return {Model}
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*/
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function Model(options) {
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AsteroidModule.apply(this, arguments);
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// throw an error if args are not supplied
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// assert(typeof options === 'object', 'Model requires an options object');
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this.options = options;
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debug('created with options', options);
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var dependencies = this.dependencies;
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var dataSource = dependencies['data-source'];
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var schema = this.schema = dataSource.schema;
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assert(Array.isArray(options.properties), 'the ' + options._name + ' model requires an options.properties array');
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// define schema
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this.schema = schema.define(options.namespace || options._name, this.buildSchemaDefinition(options.properties));
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}
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/**
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* Inherit from `AsteroidModule`.
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*/
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inherits(Model, AsteroidModule);
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/**
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* Dependencies.
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*/
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Model.dependencies = {
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'data-source': 'data-source'
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};
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/**
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* Options.
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*/
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Model.options = {
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'name': {type: 'string'},
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'properties': {type: 'array'}
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}
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/**
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* Build a jugglingdb compatibile schema definition from property array.
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*/
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Model.prototype.buildSchemaDefinition = function (properties) {
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return properties.reduce(function (prev, cur) {
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prev[cur.name] = types[cur.type];
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return prev;
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}, {});
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}
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var types = [String, Number, Date, Array, Boolean].reduce(function (prev, cur) {
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prev[cur.name.toLowerCase()] = cur
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return prev;
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}, {});
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