135 lines
3.9 KiB
JavaScript
135 lines
3.9 KiB
JavaScript
'use strict';
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/* global XML */
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var isml = require('dw/template/ISML');
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var PageMgr = require('dw/experience/PageMgr');
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/**
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* Render an ISML template
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* @param {string} view - Path to an ISML template
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* @param {Object} viewData - Data to be passed as pdict
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* @param {Object} response - Response object
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* @returns {void}
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*/
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function template(view, viewData) {
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// create a shallow copy of the data
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var data = {};
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Object.keys(viewData).forEach(function (key) {
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data[key] = viewData[key];
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});
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try {
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isml.renderTemplate(view, data);
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} catch (e) {
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throw new Error(e.javaMessage + '\n\r' + e.stack, e.fileName, e.lineNumber);
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}
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}
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/**
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* Render JSON as an output
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* @param {Object} data - Object to be turned into JSON
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* @param {Object} response - Response object
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* @returns {void}
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*/
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function json(data, response) {
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response.setContentType('application/json');
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response.base.writer.print(JSON.stringify(data, null, 2));
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}
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/**
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* Render XML as an output
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* @param {Object} viewData - Object to be turned into XML
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* @param {Object} response - Response object
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* @returns {void}
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*/
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function xml(viewData, response) {
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var XML_CHAR_MAP = {
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'<': '<',
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'>': '>',
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'&': '&',
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'"': '"',
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"'": '''
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};
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// Valid XML needs a single root.
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var xmlData = '<response>';
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Object.keys(viewData).forEach(function (key) {
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if (key === 'xml') {
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xmlData += viewData[key];
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} else {
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xmlData +=
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'<' + key + '>' + viewData[key].replace(/[<>&"']/g, function (ch) {
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return XML_CHAR_MAP[ch];
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}) + '</' + key + '>';
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}
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});
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// Close the root
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xmlData += '</response>';
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response.setContentType('application/xml');
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try {
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response.base.writer.print(new XML(xmlData));
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} catch (e) {
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throw new Error(e.message + '\n\r' + e.stack, e.fileName, e.lineNumber);
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}
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}
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/**
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* Render a page designer page
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* @param {string} pageID - Path to an ISML template
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* @param {dw.util.HashMap} aspectAttributes - aspectAttributes to be passed to the PageMgr
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* @param {Object} data - Data to be passed
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* @param {Object} response - Response object
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* @returns {void}
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*/
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function page(pageID, aspectAttributes, data, response) {
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if (aspectAttributes && !aspectAttributes.isEmpty()) {
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response.base.writer.print(PageMgr.renderPage(pageID, aspectAttributes, JSON.stringify(data)));
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} else {
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response.base.writer.print(PageMgr.renderPage(pageID, JSON.stringify(data)));
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}
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}
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/**
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* Determines what to render
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* @param {Object} res - Response object
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* @returns {void}
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*/
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function applyRenderings(res) {
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if (res.renderings.length) {
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res.renderings.forEach(function (element) {
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if (element.type === 'render') {
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switch (element.subType) {
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case 'isml':
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template(element.view, res.viewData);
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break;
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case 'json':
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json(res.viewData, res);
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break;
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case 'xml':
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xml(res.viewData, res);
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break;
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case 'page':
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page(element.page, element.aspectAttributes, res.viewData, res);
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break;
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default:
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throw new Error('Cannot render template without name or data');
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}
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} else if (element.type === 'print') {
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res.base.writer.print(element.message);
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} else {
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throw new Error('Cannot render template without name or data');
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}
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});
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} else {
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throw new Error('Cannot render template without name or data');
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}
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}
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module.exports = {
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applyRenderings: applyRenderings
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};
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