web: Add route to list points (for search)

Signed-off-by: Eduardo L. Buratti <elb09@c3sl.ufpr.br>

web/routes/points.js

+exports.list = function(req, res) {
+    var c = 1, filters, sort, offset, conditions = [], parameters = [], where = "";
+
+    filters = req.body.filters || {};
+
+    switch (req.body.sorting) {
+        case "name":        sort = "name ASC"; break;
+        case "-name":        sort = "name DESC"; break;
+        case "project":     sort = "project ASC"; break;
+        case "-project":        sort = "project DESC"; break;
+        case "location":    sort = "location ASC"; break;
+        case "-location":        sort = "location DESC"; break;
+        default:            sort = "name ASC"; break;
+    }
+
+    offset = (req.body.page || 0) * 50;
+
+    for (var key in filters) {
+        switch (key) {
+        case "project":
+            for (var i = 0; i < filters[key].length; i++) {
+                conditions.push("project = $"+(c++));
+                parameters.push(filters[key][i]);
+            }
+
+            break;
+        }
+    }
+
+    if (conditions.length > 0)
+        where = " AND (" + conditions.join(' OR ') + ")";
+
+    var query = "\
+        SELECT \
+            pt.id, \
+            pt.name, \
+            pt.project, \
+            pt.id_city, \
+            initcap(ct.name) || ', ' || upper(ct.state) AS location \
+            FROM \
+                (SELECT \
+                    t.id_point AS id, \
+                    t.name, \
+                    p.id_city, \
+                    CASE WHEN p.is_gesac THEN 'TLBR/GESAC' ELSE 'TLBR' END AS project \
+                    FROM telecenter t, point p \
+                    WHERE t.id_point = p.id \
+                UNION \
+                SELECT \
+                    id_point AS id, \
+                    establishment AS name, \
+                    p.id_city, \
+                    'GESAC' AS project \
+                    FROM convention c, point p \
+                    WHERE c.id_point = p.id) pt, city ct \
+            WHERE pt.id_city = ct.id " + where + " \
+            ORDER BY " + sort + " \
+            LIMIT 50 \
+            OFFSET " + offset;
+
+    req.db.query(query, parameters, function(result) {
+
+        req.db.done();
+        res.json(result.rows);
+    });
+};
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web/server.js

@@ -4,14 +4,17 @@ var express = require('express');
 var config = require('./config.js');
 var db = require('./middleware/db.js');
 
+var points = require('./routes/points.js');
+
 var port = parseInt(process.argv.splice(2)[0]) || 3000;
 
 var app = express();
 app.use(express.logger('dev'));
+app.use(express.bodyParser());
 app.use(express.static(__dirname + '/app'));
 
 db.config(config.db_config);
 
-app.get('/api/test/:from/:to', db.connect, db.query('queries/test.sql', ['from', 'to']));
+app.all('/api/points', db.connect, points.list);
 
 app.listen(port);
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