changed to postgres db

Gemfile

@@ -7,6 +7,7 @@ ruby '2.7.0'
 gem 'rails', '~> 6.0.3', '>= 6.0.3.1'
 # Use sqlite3 as the database for Active Record
 gem 'sqlite3', '~> 1.4'
+gem 'pg'
 # Use Puma as the app server
 gem 'puma', '~> 4.1'
 # Use SCSS for stylesheets
@@ -26,9 +27,10 @@ gem 'jbuilder', '~> 2.7'
 # gem 'image_processing', '~> 1.2'
 
 gem 'bootstrap', '~> 4.3.1'
-gem 'jquery-rails'
-gem 'image_processing'
-gem 'active_storage-send_zip'
+gem 'jquery-rails', '~> 4.4.0'
+gem 'image_processing', '~> 1.11.0'
+gem 'active_storage-send_zip', '~> 0.3.3'
+gem 'active_storage_validations', '~> 0.8.9'
 
 # Reduces boot times through caching; required in config/boot.rb
 gem 'bootsnap', '>= 1.4.2', require: false

Gemfile.lock

@@ -40,6 +40,8 @@ GEM
     active_storage-send_zip (0.3.3)
       rails (> 5.2)
       rubyzip (< 3.0)
+    active_storage_validations (0.8.9)
+      rails (>= 5.2.0)
     activejob (6.0.3.1)
       activesupport (= 6.0.3.1)
       globalid (>= 0.3.6)
@@ -119,6 +121,7 @@ GEM
     nio4r (2.5.2)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
+    pg (1.2.3)
     popper_js (1.16.0)
     public_suffix (4.0.5)
     puma (4.3.5)
@@ -213,15 +216,17 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  active_storage-send_zip
+  active_storage-send_zip (~> 0.3.3)
+  active_storage_validations (~> 0.8.9)
   bootsnap (>= 1.4.2)
   bootstrap (~> 4.3.1)
   byebug
   capybara (>= 2.15)
-  image_processing
+  image_processing (~> 1.11.0)
   jbuilder (~> 2.7)
-  jquery-rails
+  jquery-rails (~> 4.4.0)
   listen (~> 3.2)
+  pg
   puma (~> 4.1)
   rails (~> 6.0.3, >= 6.0.3.1)
   sass-rails (>= 6)

app/controllers/images_controller.rb

@@ -14,6 +14,10 @@ def index
   def show
   end
 
+  def upload
+    @image = Image.new
+
+  end
 
   # GET /images/1/edit
   def edit
@@ -23,18 +27,24 @@ def edit
   # POST /images.json
   def create
     parameters =create_params
+    errors = []
     parameters[:files].each do |f|
       tmp = {:title => parameters[:title], :private => parameters[:private], :tags => parameters[:tags], :file => f}
+      # byebug
+
+      @image = Image.create(tmp)
+      # byebug
 
-      @image = Image.create!(tmp)
       if !(@image.save)
-        format.html { render :new }
-        format.json { render json: @image.errors, status: :unprocessable_entity }
+        # byebug
+        render action: :upload
       end
 
 
     end
-    redirect_to root_path, notice: 'Image was successfully created.'
+    if errors.empty?
+      redirect_to root_path, notice: 'Image was successfully created.'
+    end
   end
 
   # PATCH/PUT /images/1
@@ -63,11 +73,7 @@ def destroy
   end
 
   def destroy_all
-    imgs = Image.all
-    imgs.each do |img|
-      img.file.purge
-      img.destroy
-    end
+    Image.destroy_all
     respond_to do |format|
       format.html { redirect_to root_path, notice: 'Image was successfully destroyed.' }
       format.json { head :no_content }

app/models/image.rb

@@ -1,4 +1,6 @@
 class Image < ApplicationRecord
   has_one_attached :file
+  validates :file, attached: true, content_type: ['image/png', 'image/jpg', 'image/jpeg'], size: { less_than: 10.megabytes , message: 'is too big' }
+
 
 end

app/views/images/upload.html.erb

@@ -1,9 +1,16 @@
 <h1>Upload an image</h1>
 
 <%= form_with(url: images_create_path, method: "post",  :html => {:class => "form-horizontal center"}) do |form| %>
+  <% if @image.errors.any?  %>
+    <div class="alert alert-danger" role="alert">
+      <%= @image.errors.full_messages.first %>
+    </div>
+  <% end %>
+
   <div class="form-group">
     <%= form.label(:files, "Choose Files:") %>
-    <%= form.file_field :files, multiple: true,  :required => true%>
+    <%= form.file_field :files, multiple: true,  :required => true %>
+    <%# , :accept => "application/jpeg, application/png, application/"%>
   </div>
   <div class="form-group">
     <%= form.label(:title, "Image Title:") %>

config/database.yml

@@ -5,21 +5,23 @@
 #   gem 'sqlite3'
 #
 default: &default
-  adapter: sqlite3
-  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 4 } %>
+  adapter: postgresql
+  pool: 5
   timeout: 5000
+  username: jennifer
+  password: 1234
 
 development:
   <<: *default
-  database: db/development.sqlite3
+  database: development
 
 # Warning: The database defined as "test" will be erased and
 # re-generated from your development database when you run "rake".
 # Do not set this db to the same as development or production.
 test:
   <<: *default
-  database: db/test.sqlite3
+  database: testing
 
 production:
   <<: *default
-  database: db/production.sqlite3
+  database: production

config/routes.rb

@@ -1,6 +1,6 @@
 Rails.application.routes.draw do
 
-  get 'site/upload'
+  # get 'site/upload'
   get 'images/upload'
   post 'images/create'
   delete 'images/destroy_all'

db/schema.rb

@@ -12,11 +12,14 @@
 
 ActiveRecord::Schema.define(version: 2020_05_30_224924) do
 
+  # These are extensions that must be enabled in order to support this database
+  enable_extension "plpgsql"
+
   create_table "active_storage_attachments", force: :cascade do |t|
     t.string "name", null: false
     t.string "record_type", null: false
-    t.integer "record_id", null: false
-    t.integer "blob_id", null: false
+    t.bigint "record_id", null: false
+    t.bigint "blob_id", null: false
     t.datetime "created_at", null: false
     t.index ["blob_id"], name: "index_active_storage_attachments_on_blob_id"
     t.index ["record_type", "record_id", "name", "blob_id"], name: "index_active_storage_attachments_uniqueness", unique: true