Added routing form aliases

src/controllers/aliases.js

@@ -0,0 +1,26 @@
+const Model = require('../models/alias');
+
+/**
+ * @class Aliases
+ * @classdesc Aliases controller
+ */
+class Aliases {
+  /**
+   * @static
+   * Find and return id of entity with given alias
+   *
+   * @param {string} alias - alias of entity
+   * @returns {Promise<string>}
+   */
+  static async get(alias) {
+    const id = await Model.get(alias);
+    console.log('id', id);
+    if (!id) {
+      throw new Error('Entity with given alias does not exist');
+    }
+
+    return id;
+  }
+}
+
+module.exports = Aliases;

src/models/alias.js

@@ -0,0 +1,45 @@
+const {aliases: aliasesDb} = require('../utils/database/index');
+const getHashFromString = require('../utils/hash');
+
+/**
+ * @typedef {Object} AliasData
+ * @property {string} type - entity type
+ * @property {string} hash - entity hash
+ * @property {string} id - entity id
+ *
+ */
+
+/**
+ * @class Alias
+ * @property {string} type - entity type
+ * @property {string} id - entity title
+ */
+class Alias {
+  /**
+   * Find and return alias with given alias
+   * @param {string} aliasName - alias of entity
+   * @returns {Promise<Alias>}
+   */
+  static async get(aliasName) {
+    const hash = getHashFromString(aliasName.slice(1)).toString();
+    const data = await aliasesDb.findOne({hash});
+
+    return new Alias(data);
+  }
+
+  /**
+   * @constructor
+   *
+   * @param {AliasData} data
+   */
+  constructor(data = {}) {
+    if (data === null) {
+      data = {};
+    }
+    this.id = data.id;
+    this.type = data.type;
+    this.hash = data.hash;
+  }
+}
+
+module.exports = Alias;

src/models/page.js

@@ -68,11 +68,11 @@ class Page {
    * @param {PageData} pageData
    */
   set data(pageData) {
-    const {body, parent} = pageData;
+    const {body, parent, uri} = pageData;
 
     this.body = body || this.body;
     this.title = this.extractTitleFromBody();
-    this.uri = this._id;
+    this.uri = uri || '';
     this._parent = parent || this._parent;
   }
 
@@ -137,7 +137,10 @@ class Page {
    */
   async save() {
     if (!this._id) {
-      const insertedRow = await pagesDb.insert(this.data);
+      const insertedRow = await pagesDb.insert({
+        ...this.data,
+        uri: this.title.toLowerCase().split(' ').join('-')
+      });
 
       this._id = insertedRow._id;
     } else {

src/routes/aliases.js

@@ -0,0 +1,27 @@
+const express = require('express');
+const router = express.Router();
+const Aliases = require('../controllers/aliases');
+
+/**
+ * GET /*
+ *
+ * Return document with given alias
+ */
+router.get('*', async (req, res) => {
+  try {
+    console.log('url ', req.originalUrl);
+    const id = await Aliases.get(req.originalUrl);
+
+    res.json({
+      success: true,
+      // result: page.data
+    });
+  } catch (err) {
+    res.status(400).json({
+      success: false,
+      error: err.message
+    });
+  }
+});
+
+module.exports = router;

src/routes/index.js

@@ -3,6 +3,7 @@ const router = express.Router();
 
 const home = require('./home');
 const pages = require('./pages');
+const aliases = require('./aliases');
 const api = require('./api');
 
 const pagesMiddleware = require('./middlewares/pages');
@@ -10,5 +11,6 @@ const pagesMiddleware = require('./middlewares/pages');
 router.use('/', pagesMiddleware, home);
 router.use('/', pagesMiddleware, pages);
 router.use('/api', api);
+router.use('/', aliases);
 
 module.exports = router;

src/utils/hash.js

@@ -0,0 +1,10 @@
+/**
+ * Function for getting hash from stringToHash
+ *
+ * @param stringToHash - stringToHash to encode
+ * @returns {string} - hash index
+ */
+module.exports = function getHashFromString(stringToHash) {
+  return stringToHash.split('').reduce((previousHashValue, currentChar) =>
+    (((previousHashValue << 5) - previousHashValue) + currentChar.charCodeAt(0)) | 0, 0);
+};

src/views/components/aside.twig

@@ -1,7 +1,7 @@
 <div class="docs-aside">
     {% for firstLevelPage in menu %}
       <section class="docs-aside__section">
-        <a class="docs-aside__section-title" href="/page/{{ firstLevelPage.uri }}">
+        <a class="docs-aside__section-title" href="/{{ firstLevelPage.uri }}">
           {{ firstLevelPage.title }}
         </a>
         {% if firstLevelPage.children is not empty %}