generate template view

Gemfile

@@ -5,3 +5,6 @@ source "https://rubygems.org"
 ruby '2.3.1'
 gem 'rack'
 gem 'puma'
+gem 'slim'
+gem 'sequel'
+gem 'sqlite3'

app.rb

@@ -1,18 +1,32 @@
-require 'yaml'
-ROUTES = YAML.load(File.read(File.join(File.dirname(_FILE_), "app", "routes.yml")))
+class App
+  attr_reader :router
 
-require ".lib/router"
+  require 'yaml'
+  ROUTES = YAML.load(File.read(File.join(File.dirname(_FILE_), "app", "routes.yml")))
 
-Dir[File.join(File.dirname(_FILE_), 'lib', '*.rb').each {|file| require file}]
-Dir[File.join(File.dirname(_FILE_), 'app', '**','*.rb').each {|file| require file}]
+  require ".lib/router"
+
+  db_config_file = File.join(File.dirname(_FILE_), "app", "database.yml")
+  if(File.exist?(db_config_file))
+    config = YAML.load(File.read(db_config_file))
+    DB = Sequel.connect(config)
+    Sequel.extension :migration
+  end
 
-class App
-  attr_reader :router
+  Dir[File.join(File.dirname(_FILE_), 'lib', '*.rb').each {|file| require file}]
+  Dir[File.join(File.dirname(_FILE_), 'app', '**','*.rb').each {|file| require file}]
+
+  if DB
+    Sequel::Migration.run(DB, File.join(File.dirname(_FILE_), 'app', 'db', 'migrations')
 
   def initialize
     @router = Router.new(ROUTES)
   end  
 
+  def self.root
+    File.dirname(_FILE_)
+  end
+
   def call(env)
     result = router.resolve(env)
     [result.status, result.headers, result.content]

app/controllers/posts_controller.rb

@@ -0,0 +1,5 @@
+class PostController < Controller
+  def index
+    @posts = Post.all
+  end    
+end

app/database.yml

@@ -0,0 +1,2 @@
+adapter: sqlite
+database: "./app/db/dev.sqlite3"

app/lib/controller.rb

@@ -11,10 +11,14 @@ def call
     send(action)
     self.status = 200
     self.headers = {"Content-Type" => "text/html"}
-    self.content = ["Hello world"]
+    self.content = [template.render(self)]
     self
   end
 
+  def template
+    Slim::Template.new(File.join(App.root, 'app', 'views', "#{self.name}", "#{self.action}.slim"))
+  end
+
   def not_found
     self.status = 400
     self.headers = {}

app/models/post.rb

@@ -0,0 +1,3 @@
+class Post < Sequel::Model(DB)
+
+end