Lesson-121/Added validation and functionality to attach videos to lessons

Author: dalvarez2596

app/controllers/lessons_controller.rb

@@ -74,6 +74,6 @@ def set_lesson
       @lesson = Lesson.friendly.find(params[:id])
     end
     def lesson_params
-      params.require(:lesson).permit(:title, :content, :row_order_position)
+      params.require(:lesson).permit(:title, :content, :row_order_position, :video, :video_thumbnail)
     end
 end

app/models/lesson.rb

@@ -6,9 +6,19 @@ class Lesson < ApplicationRecord
   has_many :user_lessons, dependent: :destroy
   # Course.find_each{ |course| Course.reset_counters(course.id, :lessons)}
   validates :title, :content, :course, presence: true
-  validates :title, uniqueness:true, length: { maximum: 70 }
+  validates :title, length: { maximum: 70 }
+  validates_uniqueness_of :title, scope: :course_id
 
   has_rich_text :content
+  has_one_attached :video
+  has_one_attached :video_thumbnail
+  validates :video,
+    content_type: [ "video/mp4", "video/quicktime", "video/mpeg" ],
+    size: { less_than: 50.megabytes, message: "size should be under 50 megabytes" }
+
+  validates :video_thumbnail,
+    content_type: [ "image/png", "image/jpg", "image/jpeg" ],
+    size: { less_than: 500.kilobytes, message: "size should be under 500 kilobytes" }
 
   extend FriendlyId
   friendly_id :title, use: :slugged

app/views/lessons/_form.html.haml

@@ -4,11 +4,13 @@
   = f.error_notification message: f.object.errors[:base].to_sentence if f.object.errors[:base].present?
 
   .form-inputs
-    = f.input :title
+    = f.input :title, input_html: { autocomplete: 'off' }
     = f.label :content
     = f.rich_text_area :content
     %small= f.error :content, class: "text-danger"
     %p 
+    = f.input :video
+    = f.input :video_thumbnail
     -# como estaba 
     -# = f.association :course
     -# Esto de abajo asigno el input del html por defecto si ya es un lesson o por params. as: :hidden hide the input

app/views/lessons/show.html.haml

@@ -18,6 +18,10 @@
 .row 
   .col-lg-8
     = render 'lessons/lesson', lesson: @lesson
+    = @lesson.video.attached?
+    = image_tag @lesson.video_thumbnail
+    %video(controls="true" poster="#{url_for @lesson.video_thumbnail}" width="100%" preload="metadata")
+      %source{src: rails_blob_url(@lesson.video), type: "#{@lesson.video.content_type}"}
     %p
   .col-lg-4
     %ul.list-group