lib/popcorn/examples/mongodb/example_mongodb.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2014-2015 Alexandre Terrasa <alexandre@moz-code.org>
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 module example_mongodb is example
  18
  19 import popcorn
  20 import mongodb
  21 import template
  22
  23 class UserList
  24         super Handler
  25
  26         var db: MongoDb
  27
  28         redef fun get(req, res) do
  29                 var users = db.collection("users").find_all(new JsonObject)
  30
  31                 var tpl = new Template
  32                 tpl.add """
  33                 <h1>Users</h1>
  34
  35                 <h2>Add a new user</h2>
  36                 <form action="/" method="POST">
  37                         <input type="text" name="login" />
  38                         <input type="password" name="password" />
  39                         <input type="submit" value="save" />
  40                 </form>
  41
  42                 <h2>All users</h2>
  43                 <table>"""
  44                 for user in users do
  45                         tpl.add """<tr>
  46                         <td>{{{user["login"] or else "null"}}}</td>
  47                         <td>{{{user["password"] or else "null"}}}</td>
  48                         </tr>"""
  49                 end
  50                 tpl.add "</table>"
  51                 res.html(tpl)
  52         end
  53
  54         redef fun post(req, res) do
  55                 var json = new JsonObject
  56                 json["login"] = req.post_args["login"]
  57                 json["password"] = req.post_args["password"]
  58                 db.collection("users").insert(json)
  59                 res.redirect("/")
  60         end
  61 end
  62
  63 var mongo = new MongoClient("mongodb://localhost:27017/")
  64 var db = mongo.database("mongo_example")
  65
  66 var app = new App
  67 app.use("/", new UserList(db))
  68 app.listen("localhost", 3000)