image class with attributes

app/controllers/cms/images_controller.rb

@@ -2,32 +2,18 @@ module Cms
 
   class ImagesController < CmsController
 
-    @@root = "app/assets/images/cms/"
-    @@files = Set.new Dir[Rails.root + @@root + "*.*"].collect{|f|f.split("/").last}
-
     def index
-      @files = files
+      @images = Image.all
     end
 
     def new
     end
 
     def create
-      io = params['image_file']
-      ending = io.original_filename.split("/").last.split(".").last
-      filename = params['filename'] + "." + ending
-      File.open(Rails.root.join('app/assets/images/cms', filename), "wb") do |f|
-        f.write io.read
-      end
-      @@files << filename
+      Image.save_image(params['filename'] , params['image_file'])
       redirect_to cms_image_index_path
     end
 
-    private
-
-    def files
-      @@files
-    end
   end
 
 end

app/models/cms/image.rb

@@ -0,0 +1,48 @@
+module Cms
+  class Image
+    include ActiveModel::API
+    include ActiveModel::Conversion
+    extend  ActiveModel::Naming
+
+    @@images = {}
+
+    attr_reader :name , :type , :created_at , :updated_at
+
+    def initialize(filename)
+      puts filename
+      @name , @type = filename.split(".")
+      file = File.new(Rails.root.join(Image.root,filename))
+      @created_at = file.birthtime
+      @updated_at = file.ctime
+    end
+
+    def self.all
+      return @@images unless @@images.empty?
+      Dir[Rails.root.join Image.root + "*.*"].each do |f|
+        file = f.split("/").last
+        self.add( file )
+      end
+      @@images
+    end
+
+    #save an io with given name (without ending, that is taken from io)
+    def self.create_new(filename , io)
+      ending = io.original_filename.split("/").last.split(".").last
+      full_filename = filename + "." + ending
+      File.open(Rails.root.join(Image.root, full_filename), "wb") do |f|
+        f.write( io.read )
+      end
+      self.add( full_filename )
+    end
+
+    def self.root
+      "app/assets/images/cms/"
+    end
+
+    private
+    def self.add(filename)
+      key = filename.split(".").first
+      @@images[key] = Image.new(filename)
+    end
+  end
+end

app/views/cms/images/index.haml

@@ -3,17 +3,12 @@
     Add Image
 
 .grid.grid-cols-6.gap-4.m-8
-  -@files.each do |file|
+  -@images.each do |name , image|
     .relative.block.border.border-gray-100
-      %button.absolute.right-4.top-4.rounded-full.bg-black.p-2.text-white{:type => "button"}
-        %span.sr-only Wishlist
-        %svg.h-4.w-4{:fill => "none", :stroke => "currentColor", :viewbox => "0 0 24 24", :xmlns => "http://www.w3.org/2000/svg"}
-          %path{:d => "M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z", "stroke-linecap" => "round", "stroke-linejoin" => "round", "stroke-width" => "2"}
-      =image_tag("cms/#{file}" , class: "h-56 w-full object-contain lg:h-72")
+      =image_tag("cms/#{name}" , class: "h-56 w-full object-contain lg:h-72")
       .p-6
         %strong.inline-block.bg-yellow-400.px-3.py-1.text-xs.font-medium
-          New
-        %h3.mt-4.text-lg.font-bold= file.split(".").first
-        %p.mt-2.text-sm.text-gray-700 $14.99
-        %button.mt-4.block.w-full.rounded-sm.bg-yellow-500.p-4.text-sm.font-medium{:type => "button"}
-          Add to Cart
+          =image.type
+        %h3.mt-4.text-lg.font-bold= image.name
+        %p.mt-2.text-sm.text-gray-700
+          = "#{image.created_at.to_date} ---- #{image.updated_at.to_date}"