Use ransack on enrollments table

app/controllers/enrollments_controller.rb

@@ -4,7 +4,8 @@ class EnrollmentsController < ApplicationController
 
   def index
     # @enrollments = Enrollment.all
-    @pagy, @enrollments = pagy(Enrollment.all)
+    @q = Enrollment.ransack(params[:q])
+    @pagy, @enrollments = pagy(@q.result)
     authorize @enrollments
   end
 

app/models/enrollment.rb

@@ -15,6 +15,14 @@ class Enrollment < ApplicationRecord
   extend FriendlyId
   friendly_id :to_s, use: :slugged
 
+  def self.ransackable_associations(auth_object = nil)
+    [ "course", "user" ]
+  end
+
+  def self.ransackable_attributes(auth_object = nil)
+    [ "price", "review", "rating", "updated_at", "created_at" ]
+  end
+
   def to_s
     user.to_s + " " + course.to_s
   end

app/views/enrollments/index.html.haml

@@ -7,31 +7,55 @@
   Enrollments
   .badge.bg-info
     = @enrollments.count
-
+%p
+%form.row.g-3
+  = search_form_for @q do |f|
+    .col-auto
+      = f.search_field :user_email_cont, placeholder: "User email", class: "form-control form-control-sm"
+    .col-auto
+      = f.search_field :course_title_cont, placeholder: "Course title", class: "form-control form-control-sm"
+    .col-auto
+      = f.search_field :price_eq, placeholder: "Price", class: "form-control form-control-sm"
+    .col-auto
+      = f.search_field :rating_eq, placeholder: "Rating", class: "form-control form-control-sm"
+    .col-auto
+      = f.search_field :review_cont, placeholder: "Review", class: "form-control form-control-sm"
+    .col-auto
+      = f.submit class: "btn btn-sm btn-secondary"
+    .col-auto
+      = link_to enrollments_path, class: "btn btn-sm btn-secondary" do
+        .fa.fa-refresh
+%p
 .table-responsive
   %table.table.table-bordered.table-striped.table-sm
     %thead
       %tr
         %th ID
+        %th
+          = sort_link(@q, :user_email) do
+            .fa.fa-user
+            User
+        %th
+          = sort_link(@q, :created_at) do
+            .fa.fa-clock
+            .fa.fa-lock-open
+            Bought
         %th 
-          .fa.fa-user
-          User
-        %th 
-          .fa.fa-clock
-          .fa.fa-lock-open
-          Bought
-        %th 
-          .fa.fa-graduation-cap
-          Course
+          = sort_link(@q, :course_title) do
+            .fa.fa-graduation-cap
+            Course
         %th 
-          .fa.fa-dollar-sign
-          Price
+          = sort_link(@q, :price) do
+            .fa.fa-dollar-sign
+            Price
         %th
-          .text-warning.fa.fa-clock
-          Reviewed on
+          = sort_link(@q, :updated_at) do
+            .text-warning.fa.fa-clock
+            Reviewed on
         %th
-          .text-warning.fa.fa-star
-          Rating
+          = sort_link(@q, :rating) do
+            .text-warning.fa.fa-star
+            Rating
         %th
           .text-warning.fa.fa-comment
           Review