Upload model and controller

Author: raduwen

Gemfile

@@ -46,13 +46,14 @@ group :development, :test do
   gem 'hirb'
   gem 'hirb-unicode'
   gem 'awesome_print'
+
+  gem 'rspec-rails'
+  gem 'factory_girl_rails'
 end
 
 group :test do
-  gem 'rspec-rails'
   gem 'shoulda-matchers'
   gem 'database_rewinder'
-  gem 'factory_girl_rails'
   gem 'forgery'
   gem 'capybara'
 

app/assets/javascripts/upload.js.coffee

@@ -0,0 +1,3 @@
+# Place all the behaviors and hooks related to the matching controller here.
+# All this logic will automatically be available in application.js.
+# You can use CoffeeScript in this file: http://coffeescript.org/

app/assets/stylesheets/upload.css.scss

@@ -0,0 +1,3 @@
+// Place all the styles related to the upload controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/controllers/uploads_controller.rb

@@ -0,0 +1,34 @@
+class UploadsController < ApplicationController
+  before_action :set_upload, only: [:destroy]
+
+  def new
+    @upload = Upload.new
+  end
+
+  def create
+    @upload = Upload.new(upload_params)
+
+    if @upload.save
+      redirect_to root_url, notice: 'Upload was successfully created.'
+    else
+      render action: 'new'
+    end
+  end
+
+  # DELETE /uploads/1
+  # DELETE /uploads/1.json
+  def destroy
+    @upload.destroy
+    redirect_to root_url
+  end
+
+  private
+
+  def set_upload
+    @upload = Upload.find(params[:id])
+  end
+
+  def upload_params
+    params.require(:upload).permit(:file).merge(ip: request.remote_ip)
+  end
+end

app/helpers/uploads_helper.rb

@@ -0,0 +1,2 @@
+module UploadsHelper
+end

app/models/upload.rb

@@ -0,0 +1,29 @@
+class Upload < ActiveRecord::Base
+  attr_accessor :file
+
+  before_validation :set_attributes_from_file, :if => Proc.new { |instance| instance.new_record? }
+
+  validates :filename, presence: true, format: { with: /\.[A-Za-z]+\Z/ }
+  validates :ext, presence: true
+  validates :ip, presence: true
+
+  private
+
+  def set_attributes_from_file
+    set_filename
+    set_ext
+    set_data
+  end
+
+  def set_data
+    self.data = @file.read
+  end
+
+  def set_filename
+    self.filename = @file.original_filename
+  end
+
+  def set_ext
+    self.ext = File.extname(@file.original_filename)
+  end
+end

app/views/uploads/_form.html.haml

@@ -0,0 +1,10 @@
+= form_for @upload do |f|
+  - if @upload.errors.any?
+    #error_explanation
+      %h2= "#{pluralize(@upload.errors.count, "error")} prohibited this upload from being saved:"
+      %ul
+        - @upload.errors.full_messages.each do |msg|
+          %li= msg
+
+  .actions
+    = f.submit 'Save'

app/views/uploads/new.html.haml

@@ -0,0 +1,5 @@
+%h1 New upload
+
+= render 'form'
+
+= link_to 'Back', uploads_path

config/routes.rb

@@ -1,3 +1,4 @@
 PecaUploader::Application.routes.draw do
   root "welcome#index"
+  resources :upload, only: [:new, :create, :destroy]
 end

db/migrate/20130928060122_create_uploads.rb

@@ -0,0 +1,14 @@
+class CreateUploads < ActiveRecord::Migration
+  def change
+    create_table :uploads do |t|
+      t.string :filename,  presence: true
+      t.string :ext,      presence: true
+      t.string :comment
+      t.string :ip,       presence: true
+      t.integer :view_count
+      t.binary :data, :limit => 5.megabytes
+
+      t.timestamps
+    end
+  end
+end