Add contestant categories to contests

app/controllers/categories_controller.rb

@@ -0,0 +1,37 @@
+class CategoriesController < ApplicationController
+  before_action :set_contest
+  before_action :set_category, only: %i[ destroy]
+
+  def create
+    authorize @contest
+
+    @category = Category.new(category_params)
+    @category.contest_id = @contest.id
+    if @category.save
+      redirect_to edit_contest_path(@contest), notice: t("categories.new.notice")
+    else
+      redirect_to edit_contest_path(@contest), notice: t("categories.new.error")
+    end
+  end
+
+  def destroy
+    authorize @contest
+
+    @category.destroy
+    redirect_to edit_contest_path(@contest), notice: t("categories.destroy.notice")
+  end
+
+  private
+
+  def set_contest
+    @contest = Contest.find(params[:contest_id])
+  end
+
+  def set_category
+    @category = Category.find(params[:id])
+  end
+
+  def category_params
+    params.expect(category: [ :name ])
+  end
+end

app/models/category.rb

@@ -0,0 +1,24 @@
+# == Schema Information
+#
+# Table name: categories
+#
+#  id         :integer          not null, primary key
+#  name       :string
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#  contest_id :integer          not null
+#
+# Indexes
+#
+#  index_categories_on_contest_id  (contest_id)
+#
+# Foreign Keys
+#
+#  contest_id  (contest_id => contests.id)
+#
+class Category < ApplicationRecord
+  belongs_to :contest
+  has_and_belongs_to_many :contestants
+
+  validates :name, presence: true
+end

app/models/contest.rb

@@ -26,6 +26,7 @@ class Contest < ApplicationRecord
   extend FriendlyId
 
   belongs_to :user
+  has_many :categories
   has_many :completions, dependent: :destroy
   has_many :contestants, dependent: :destroy
   has_many :puzzles, dependent: :destroy

app/models/contestant.rb

@@ -22,6 +22,7 @@
 class Contestant < ApplicationRecord
   belongs_to :contest
   has_many :completions, dependent: :destroy
+  has_and_belongs_to_many :categories
 
   before_validation :initialize_time_seconds_if_empty
 

app/views/contests/_form.html.slim

@@ -1,3 +1,4 @@
+h4.mt-5 = t("contests.form.general")
 = form_with model: contest do |form|
   .row.mb-3
     .col
@@ -20,7 +21,7 @@
         = form.check_box :team, class: "form-check-input"
         = form.label :team
         .form-text = t("activerecord.attributes.contest.team_description")
-  .row.mb-3
+  .row.mb-3 style="display: none"
     .col
       .form-check.form-switch
         = form.check_box :allow_registration, class: "form-check-input"
@@ -28,4 +29,37 @@
         .form-text = t("activerecord.attributes.contest.allow_registration_description")
   .row
     .col
-      = form.submit submit_text, class: "btn btn-primary"
+      = form.submit submit_text, class: "btn btn-primary"
+
+  
+h4.mt-5 = t("contests.form.categories")
+
+= form_with model: Category, url: "/contests/#{@contest.id}/categories" do |form|
+  - if @contest.categories.size > 0
+    .row
+      .col-6
+        table.table.table-striped.table-hover
+          thead
+            tr
+              th
+                = t("activerecord.attributes.category.name")
+              th
+                = t("activerecord.attributes.category.contestant_count")
+          tbody
+            - @contest.categories.each do |category|
+              tr.align-middle scope="row"
+                td
+                  = category.name
+                td
+                  = category.contestants.size
+                td
+                  = link_to t("helpers.buttons.delete"), contest_category_path(@contest, category), data: { turbo_method: :delete }, class: "btn btn-sm btn-danger ms-2"
+  .row.mt-3
+    .col-4
+      .form-floating
+        = form.text_field :name, autocomplete: "off", value: nil, class: "form-control"
+        = form.label :name, class: "required"
+          = t("activerecord.attributes.category.new")
+  .row.mt-3
+    .col
+      = form.submit t("helpers.buttons.add"), class: "btn btn-primary"