80 lines
1.8 KiB
JavaScript
80 lines
1.8 KiB
JavaScript
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/**
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* Expose `ModelConfiguration`.
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*/
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module.exports = ModelConfiguration;
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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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, Model = require('asteroid/lib/model')
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, debug = require('debug')('model-configuration')
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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 `ModelConfiguration` 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 ModelConfiguration(options) {
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AsteroidModule.apply(this, arguments);
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this.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 model
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var ModelCtor = this.ModelCtor = this.BaseModel.extend(options);
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assert(dataSource.name, 'cannot map a model to a datasource without a name');
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// define provided mappings
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if(options.maps) {
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options.maps.forEach(function (config) {
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assert(config.dataSource, 'Model config.options.maps requires a `dataSource` when defining maps');
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assert(config.map, 'Model config.options.maps requires a `map` when defining maps');
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ModelCtor.defineMap(dataSource.name, config);
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});
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}
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}
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/**
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* Inherit from `AsteroidModule`.
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*/
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inherits(ModelConfiguration, AsteroidModule);
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/**
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* The model to extend (should be overridden in sub classes).
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*/
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ModelConfiguration.prototype.BaseModel = Model;
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/**
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* Dependencies.
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*/
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ModelConfiguration.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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ModelConfiguration.options = {
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'name': {type: 'string'},
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'properties': {type: 'array'},
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'maps': {type: 'array'}
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}
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