mirror of https://gitee.com/bigwinds/arangodb
110 lines
3.7 KiB
JavaScript
110 lines
3.7 KiB
JavaScript
'use strict';
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// //////////////////////////////////////////////////////////////////////////////
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// / @brief Foxx Template Middleware
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// /
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// / @file
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// /
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// / DISCLAIMER
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// /
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// / Copyright 2013 triagens GmbH, Cologne, Germany
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// /
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// / Licensed under the Apache License, Version 2.0 (the "License")
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// / you may not use this file except in compliance with the License.
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// / You may obtain a copy of the License at
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// /
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// / http://www.apache.org/licenses/LICENSE-2.0
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// /
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// / Unless required by applicable law or agreed to in writing, software
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// / distributed under the License is distributed on an "AS IS" BASIS,
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// / WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// / See the License for the specific language governing permissions and
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// / limitations under the License.
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// /
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// / Copyright holder is triAGENS GmbH, Cologne, Germany
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// /
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// / @author Lucas Dohmen
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// / @author Copyright 2013, triAGENS GmbH, Cologne, Germany
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// //////////////////////////////////////////////////////////////////////////////
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var db = require('@arangodb').db,
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_ = require('lodash');
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// //////////////////////////////////////////////////////////////////////////////
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// / @start Docu Block JSF_foxx_TemplateMiddleware_initializer
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// /
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// / Initialize with the name of a collection or a collection and optionally
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// / a set of helper functions.
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// / Then use *before* to attach the initialized middleware to your Foxx.Controller
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// /
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// / @EXAMPLES
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// /
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// / ```js
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// / templateMiddleware = new TemplateMiddleware("templates", {
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// / uppercase: function (x) { return x.toUpperCase(); }
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// / })
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// / // or without helpers:
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// / //templateMiddleware = new TemplateMiddleware("templates")
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// /
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// / app.before(templateMiddleware)
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// / ```
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// / @end Docu Block
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// //////////////////////////////////////////////////////////////////////////////
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function TemplateMiddleware (templateCollection, helper) {
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var middleware = function (request, response) {
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var responseFunctions,
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_ = require('lodash');
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responseFunctions = {
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// //////////////////////////////////////////////////////////////////////////////
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// / @start Docu Block JSF_foxx_TemplateMiddleware_response_render
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// /
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// / `response.render(templatePath, data)`
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// /
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// / When the TemplateMiddleware is included, you will have access to the
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// / *render* function on the response object.
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// / If you call render, Controller will look into the this collection and
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// / search by the path attribute. It will then render the template with the
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// / given data.
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// /
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// / @EXAMPLES
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// /
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// / ```js
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// / response.render("high/way", {username: 'Application'})
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// / ```
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// / @end Docu Block
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// //////////////////////////////////////////////////////////////////////////////
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render: function (templatePath, data) {
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var template;
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template = templateCollection.firstExample({path: templatePath });
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if (_.isNull(template)) {
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throw new Error("Template '" + templatePath + "' does not exist");
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}
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if (template.templateLanguage !== 'underscore') {
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throw new Error("Unknown template language '" + template.templateLanguage + "'");
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}
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this.body = _.template(template.content)(Object.assign(data, helper));
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this.contentType = template.contentType;
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}
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};
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Object.assign(response, responseFunctions);
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};
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if (_.isString(templateCollection)) {
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templateCollection = db._collection(templateCollection) ||
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db._create(templateCollection);
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}
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return middleware;
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}
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exports.TemplateMiddleware = TemplateMiddleware;
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