Add table model

app/models/table.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class Table < ApplicationRecord
+  belongs_to :owner, class_name: "User"
+  belongs_to :game_system
+
+  validates :name, presence: true,
+                   length: { maximum: 100 }
+  validates :slug, presence: true,
+                   length: { maximum: 100 },
+                   uniqueness: true
+end

db/migrate/20240528103921_create_tables.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class CreateTables < ActiveRecord::Migration[7.1]
+  def change
+    create_table :tables do |t|
+      t.string :name, null: false
+      t.string :slug, index: { unique: true }, null: false
+      t.references :owner, foreign_key: { to_table: :users }
+      t.belongs_to :game_system, null: false, foreign_key: true
+
+      t.timestamps
+    end
+
+    add_check_constraint :tables, "length(name) <= 100", name: "chk_table_name_max_length"
+    add_check_constraint :tables, "length(slug) <= 100", name: "chk_table_slug_max_length"
+  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[7.1].define(version: 2024_05_26_102908) do
+ActiveRecord::Schema[7.1].define(version: 2024_05_28_103921) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -35,6 +35,20 @@ ActiveRecord::Schema[7.1].define(version: 2024_05_26_102908) do
     t.index ["user_id"], name: "index_site_roles_users_on_user_id"
   end
 
+  create_table "tables", force: :cascade do |t|
+    t.string "name", null: false
+    t.string "slug", null: false
+    t.bigint "owner_id"
+    t.bigint "game_system_id", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["game_system_id"], name: "index_tables_on_game_system_id"
+    t.index ["owner_id"], name: "index_tables_on_owner_id"
+    t.index ["slug"], name: "index_tables_on_slug", unique: true
+    t.check_constraint "length(name::text) <= 100", name: "chk_table_name_max_length"
+    t.check_constraint "length(slug::text) <= 100", name: "chk_table_slug_max_length"
+  end
+
   create_table "users", force: :cascade do |t|
     t.string "username", limit: 20, null: false
     t.string "password_digest", limit: 200, null: false
@@ -52,4 +66,6 @@ ActiveRecord::Schema[7.1].define(version: 2024_05_26_102908) do
     t.check_constraint "length(username::text) >= 3", name: "chk_username_min_length"
   end
 
+  add_foreign_key "tables", "game_systems"
+  add_foreign_key "tables", "users", column: "owner_id"
 end

test/fixtures/game_systems.yml

@@ -1,2 +1,5 @@
 troika:
   name: Troika
+
+dnd:
+  name: Dungeons & Dragons

test/fixtures/tables.yml

@@ -0,0 +1,11 @@
+table:
+  name: My Table
+  slug: my-table
+  owner: trevor
+  game_system: troika
+
+table_two:
+  name: My Other Table
+  slug: my-other-table
+  owner: trevor
+  game_system: troika

test/integration/admin_game_systems_integration_test.rb

@@ -59,7 +59,7 @@ class AdminGameSystemsIntegrationTest < ActionDispatch::IntegrationTest
   test "destroy should destroy game system" do
     sign_in users(:admin)
     assert_difference "GameSystem.count", -1 do
-      delete admin_game_system_path(game_systems(:troika))
+      delete admin_game_system_path(game_systems(:dnd))
     end
     assert_redirected_to admin_game_systems_path
   end

test/models/table_test.rb

@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class TableTest < ActiveSupport::TestCase
+  test "name must exist" do
+    assert_must_exist(tables(:table), "name")
+  end
+
+  test "slug must exist" do
+    assert_must_exist(tables(:table), "slug")
+  end
+
+  test "slug must be unique" do
+    table1 = Table.first
+    table2 = Table.second
+    table1.slug = table2.slug
+    assert_not table1.valid?
+  end
+end