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 import popcorn
  18 import mongodb
  19 import template
  20
  21 class UserList
  22         super Handler
  23
  24         var db: MongoDb
  25
  26         redef fun get(req, res) do
  27                 var users = db.collection("users").find_all(new JsonObject)
  28
  29                 var tpl = new Template
  30                 tpl.add """
  31                 <h1>Users</h1>
  32
  33                 <h2>Add a new user</h2>
  34                 <form action="/" method="POST">
  35                         <input type="text" name="login" />
  36                         <input type="password" name="password" />
  37                         <input type="submit" value="save" />
  38                 </form>
  39
  40                 <h2>All users</h2>
  41                 <table>"""
  42                 for user in users do
  43                         tpl.add """<tr>
  44                         <td>{{{user["login"] or else "null"}}}</td>
  45                         <td>{{{user["password"] or else "null"}}}</td>
  46                         </tr>"""
  47                 end
  48                 tpl.add "</table>"
  49                 res.html(tpl)
  50         end
  51
  52         redef fun post(req, res) do
  53                 var json = new JsonObject
  54                 json["login"] = req.post_args["login"]
  55                 json["password"] = req.post_args["password"]
  56                 db.collection("users").insert(json)
  57                 res.redirect("/")
  58         end
  59 end
  60
  61 var mongo = new MongoClient("mongodb://localhost:27017/")
  62 var db = mongo.database("mongo_example")
  63
  64 var app = new App
  65 app.use("/", new UserList(db))
  66 app.listen("localhost", 3000)