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"

config/locales/en.yml

@@ -38,6 +38,10 @@ en:
               greater_than: "Participant names are required"
   activerecord:
     attributes:
+      category:
+        contestant_count: Contestants count
+        new: New category
+        name: Category
       completion:
         contestant: Participant
         display_time: Time
@@ -116,6 +120,12 @@ en:
               blank: Your email cannot be empty
             username:
               blank: Your username cannot be empty
+  categories:
+    destroy:
+      notice: Category deleted
+    new:
+      error: The category name can't be empty
+      notice: Category added
   completions:
     destroy:
       notice: Completion deleted
@@ -132,6 +142,9 @@ en:
     edit:
       notice: Contest updated
       title: Edit contest settings
+    form:
+      categories: Participant categories
+      general: General parameters
     index:
       title: Welcome %{username}!
       manage_contests: Manage my contests

config/locales/fr.yml

@@ -9,6 +9,10 @@ fr:
               greater_than: "Choisir une colonne pour les noms des participant.e.s est nécessaire"
   activerecord:
     attributes:
+      category:
+        contestant_count: Nombre de participant.e.s
+        new: Nouvelle catégorie
+        name: Catégorie
       completion:
         contestant_id: Participant.e
         display_time: Temps
@@ -87,6 +91,12 @@ fr:
               blank: L'email est obligatoire
             username:
               blank: Le nom d'utilisateur.ice est obligatoire
+  categories:
+    destroy:
+      notice: Catégorie supprimée
+    new:
+      error: Le nom de la catégorie ne peut pas être vide
+      notice: Catégorie ajoutée
   completions:
     destroy:
       notice: Complétion supprimée
@@ -103,6 +113,9 @@ fr:
     edit:
       notice: Concours modifié
       title: Paramètres du concours
+    form:
+      categories: Catégories de participant.e.s
+      general: Paramètres généraux
     index:
       title: Bienvenue %{username} !
       manage_contests: Mes concours de puzzle

config/routes.rb

@@ -9,6 +9,7 @@ Rails.application.routes.draw do
   root "contests#index"
 
   resources :contests do
+    resources :categories, only: [ :create, :destroy ]
     resources :completions
     resources :contestants
     resources :puzzles

db/migrate/20250714115208_create_categories.rb

@@ -0,0 +1,15 @@
+class CreateCategories < ActiveRecord::Migration[8.0]
+  def change
+    create_table :categories do |t|
+      t.string :name
+      t.belongs_to :contest, null: false, foreign_key: true
+
+      t.timestamps
+    end
+
+    create_join_table :categories, :contestants do |t|
+      t.index :category_id
+      t.index :contestant_id
+    end
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_06_27_070407) do
+ActiveRecord::Schema[8.0].define(version: 2025_07_14_115208) do
   create_table "active_storage_attachments", force: :cascade do |t|
     t.string "name", null: false
     t.string "record_type", null: false
@@ -39,6 +39,21 @@ ActiveRecord::Schema[8.0].define(version: 2025_06_27_070407) do
     t.index ["blob_id", "variation_digest"], name: "index_active_storage_variant_records_uniqueness", unique: true
   end
 
+  create_table "categories", force: :cascade do |t|
+    t.string "name"
+    t.integer "contest_id", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["contest_id"], name: "index_categories_on_contest_id"
+  end
+
+  create_table "categories_contestants", id: false, force: :cascade do |t|
+    t.integer "category_id", null: false
+    t.integer "contestant_id", null: false
+    t.index ["category_id"], name: "index_categories_contestants_on_category_id"
+    t.index ["contestant_id"], name: "index_categories_contestants_on_contestant_id"
+  end
+
   create_table "completions", force: :cascade do |t|
     t.integer "time_seconds"
     t.integer "contestant_id", null: false
@@ -141,6 +156,7 @@ ActiveRecord::Schema[8.0].define(version: 2025_06_27_070407) do
 
   add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
   add_foreign_key "active_storage_variant_records", "active_storage_blobs", column: "blob_id"
+  add_foreign_key "categories", "contests"
   add_foreign_key "completions", "contestants"
   add_foreign_key "completions", "contests"
   add_foreign_key "completions", "messages"

spec/factories/categories.rb

@@ -0,0 +1,23 @@
+# == 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)
+#
+FactoryBot.define do
+  factory :category do
+    name { "MyString" }
+  end
+end

spec/models/category_spec.rb

@@ -0,0 +1,23 @@
+# == 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)
+#
+require 'rails_helper'
+
+RSpec.describe Category, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end