1 /*******************************************************************************
2 * Copyright (c) 2017 Kumar Rishabh and others.
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Apache License, Version 2.0
6 * which accompanies this distribution, and is available at
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *******************************************************************************/
10 var express = require('express');
11 var router = express.Router();
12 var async = require('async');
15 var renderer = function(res, err, results) {
16 //console.log(results);
17 //console.log(results.length);
18 if(results.length >= 1)
19 res.render('search_projects', { title: 'Express', json: results });
21 res.render('search_projects', { title: 'Express', json: false });
24 var get_tags = function(result, callback) {
25 db_pool.getConnection(function(err, connection) {
26 sql_query = 'select tag_name from tag where tag_id in (select tag_id from vnf_tags where vnf_id = ' + result['vnf_id'] + ') and is_vnf_name = 0 limit 5';
27 // TODO find why it works and not above
28 connection.query(sql_query, function (error, results, fields) {
29 //console.log(results);
32 result['tags'] = false;
35 result['tags'] = results;
37 callback(null, result);
43 var get_images = function(result, callback) {
44 db_pool.getConnection(function(err, connection) {
45 sql_query = 'select photo_url from photo where photo_id = ' + result['photo_id'];
46 // TODO find why it works here and not when declared outside the method
47 //console.log(sql_query);
48 connection.query(sql_query, function (error, results, fields) {
49 //console.log(results[0].photo_url);
50 //callback(null, result);
53 result['photo_url'] = false;
56 result['photo_url'] = results[0].photo_url;
58 callback(null, result);
64 var sql_data = function(tags, renderer, res) {
65 var tag_array = "\'" + tags.map(function (item) { return item; }).join("\',\'") + "\'";
66 console.log(tag_array);
68 db_pool.getConnection(function(err, connection) {
69 sql_query = 'select tag_id from tag where tag_name in (' + tag_array + ')';
70 connection.query(sql_query, function (error, results, fields) {
71 console.log('tag_id');
73 condition = 'SELECT * FROM vnf as v';
74 orig_condition = condition;
75 for (var i in results) {
76 condition += (i == 0) ? ' WHERE ' : ' AND ';
77 condition += 'v.vnf_id IN (SELECT vnf_id from vnf_tags where tag_id = ' + results[i]['tag_id'] + ')';
79 if (condition === orig_condition)
80 condition += ' WHERE v.vnf_id = -1';
81 condition += ' limit 5';
82 console.log(condition);
84 connection.query(condition, function (error, results, fields) {
85 //console.log(results);
89 console.log('connection error occurred');
91 async.map(results, get_images, function(error, results) {
92 async.map(results, get_tags, renderer.bind(null, res));
97 //connection.release();
98 //if (error) throw error;
104 router.get('/', function(req, res) {
106 console.log(typeof(req.param('tags')));
107 var tags = req.param('tags');
110 tags = tags.toLowerCase().split(/[ ,]+/);
112 sql_data(tags, renderer, res);
114 res.render('search_projects', { title: 'Express', json: false});
119 module.exports = router;