75 lines
1.9 KiB
JavaScript
75 lines
1.9 KiB
JavaScript
'use strict';
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/**
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* Module dependencies.
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*/
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var _cloneDeep = require('lodash.clonedeep');
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var translateKeys = require('./translate-keys');
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/**
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* Export the modelHelper singleton.
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*/
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var modelHelper = module.exports = {
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/**
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* Given a class (from remotes.classes()), generate a model definition.
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* This is used to generate the schema at the top of many endpoints.
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* @param {Class} class Remote class.
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* @return {Object} Associated model definition.
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*/
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generateModelDefinition: function generateModelDefinition(aClass) {
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var def = aClass.ctor.definition;
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var name = def.name;
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var required = [];
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// Don't modify original properties.
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var properties = _cloneDeep(def.properties);
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// Iterate through each property in the model definition.
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// Types are defined as constructors (e.g. String, Date, etc.)
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// so we convert them to strings.
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Object.keys(def.properties).forEach(function(key) {
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var prop = properties[key];
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// Eke a type out of the constructors we were passed.
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prop.type = getPropType(prop.type);
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if (prop.type === 'array') {
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prop.items = {
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type: getPropType(prop.type[0])
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};
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}
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// Required props sit in a per-model array.
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if (prop.required || prop.id) {
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required.push(key);
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}
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// Change mismatched keys.
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prop = translateKeys(prop);
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});
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var out = {};
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out[name] = {
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id: name,
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properties: properties,
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required: required
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};
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return out;
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}
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};
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/**
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* Given a propType (which may be a function, string, or array),
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* get a string type.
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* @param {*} propType Prop type description.
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* @return {String} Prop type string.
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*/
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function getPropType(propType) {
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if (typeof propType === "function") {
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propType = propType.name.toLowerCase();
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} else if(Array.isArray(propType)) {
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propType = 'array';
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}
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return propType;
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}
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