Merge pull request #39 from dalvarez2596/lesson-84

dalvarez2596 · web-flow · commit fc9db86c8f78 · 2024-11-11T13:47:15.000-06:00
Lesson 84
diff --git a/app/models/enrollment.rb b/app/models/enrollment.rb
@@ -1,5 +1,6 @@
 class Enrollment < ApplicationRecord
-  belongs_to :course
+  belongs_to :course, counter_cache:  true
+  # Course.find_each{ |course| Course.reset_counters(course.id, :enrollments)}
   belongs_to :user
 
   validates :user, :course, presence: true
diff --git a/app/views/courses/_course.html.haml b/app/views/courses/_course.html.haml
@@ -11,7 +11,11 @@
       = review_button(course)
   .card-footer
     .text-warning.fa.fa-star
-    = course.average_rating
+    %b= course.average_rating
+    -# Enrollments count:
+    -# = course.enrollments.count
+    Counter cache enrollments count:
+    = course.enrollments_count
   .card-footer
     .fa.fa-list-check
       = course.lessons.count
diff --git a/db/migrate/20241111183829_add_counter_cache_to_models.rb b/db/migrate/20241111183829_add_counter_cache_to_models.rb
@@ -0,0 +1,5 @@
+class AddCounterCacheToModels < ActiveRecord::Migration[7.2]
+  def change
+    add_column :courses, :enrollments_count, :integer, null: false, default: 0
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
