lib/popcorn/examples/templates/example_templates.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2017 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_templates is example
  18
  19 import popcorn
  20 import popcorn::pop_templates
  21
  22 class MyTemplateHandler
  23         super Handler
  24
  25         # Template to render
  26         var template = new TemplateString("""
  27                 <h1>Hello %USER%!</h1>
  28                 <p>Welcome to %MYSITE%.</p>
  29         """)
  30
  31         redef fun get(req, res) do
  32                 # Values to add in the template
  33                 var values = new HashMap[String, String]
  34                 values["USER"] = "Morriar"
  35                 values["MYSITE"] = "My super website"
  36
  37                 # Render it
  38                 res.template(template, values)
  39         end
  40 end
  41
  42 class MyTemplateStringHandler
  43         super Handler
  44
  45         redef fun get(req, res) do
  46                 # Values to add in the template
  47                 var values = new HashMap[String, String]
  48                 values["USER"] = "Morriar"
  49                 values["MYSITE"] = "My super website"
  50
  51                 # Render it with a shortcut
  52                 res.template_string("""
  53                         <h1>Hello %USER%!</h1>
  54                         <p>Welcome to %MYSITE%.</p>
  55                 """, values)
  56         end
  57 end
  58
  59 class MyTemplateFileHandler
  60         super Handler
  61
  62         # Use template from external file
  63         var tpl_file = "example_template.tpl"
  64
  65         redef fun get(req, res) do
  66                 # Values to add in the template
  67                 var values = new HashMap[String, String]
  68                 values["USER"] = "Morriar"
  69                 values["MYSITE"] = "My super website"
  70
  71                 # Render it from an external file
  72                 res.template_file(tpl_file, values)
  73         end
  74 end
  75
  76 class MyTemplatePugHandler
  77         super Handler
  78
  79         redef fun get(req, res) do
  80                 # Values to add in the template
  81                 var json = new JsonObject
  82                 json["user"] = "Morriar"
  83                 json["mysite"] = "My super website"
  84
  85                 res.pug("""
  86 h1 Hello #{user}
  87 p Welcome to #{mysite}
  88                 """, json)
  89         end
  90 end
  91
  92 class MyTemplatePugFileHandler
  93         super Handler
  94
  95         # Use template from external file
  96         var pug_file = "example_template.pug"
  97
  98         redef fun get(req, res) do
  99                 # Values to add in the template
 100                 var json = new JsonObject
 101                 json["user"] = "Morriar"
 102                 json["mysite"] = "My super website"
 103
 104                 # Render it from an external file
 105                 res.pug_file(pug_file, json)
 106         end
 107 end
 108
 109 var app = new App
 110 app.use("/", new MyTemplateHandler)
 111 app.use("/string", new MyTemplateStringHandler)
 112 app.use("/file", new MyTemplateFileHandler)
 113 app.use("/pug", new MyTemplatePugHandler)
 114 app.use("/pug_file", new MyTemplatePugFileHandler)
 115 app.listen("localhost", 3000)