Initial commit

db/migrate/20230924015218_create_countries.rb

@@ -0,0 +1,15 @@
+class CreateCountries < ActiveRecord::Migration[7.0]
+  def change
+    create_table :countries do |t|
+      t.string :name, null: false
+      t.string :iso2, limit: 2, null: false
+      t.string :iso3, limit: 3, null: false
+
+      t.timestamps
+    end
+
+    add_index :countries, :name, unique: true
+    add_index :countries, :iso2, unique: true
+    add_index :countries, :iso3, unique: true
+  end
+end

db/migrate/20230924015422_create_people.rb

@@ -0,0 +1,9 @@
+class CreatePeople < ActiveRecord::Migration[7.0]
+  def change
+    create_table :people do |t|
+      t.string :name, null: false
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20230924015803_create_admissions.rb

@@ -0,0 +1,11 @@
+class CreateAdmissions < ActiveRecord::Migration[7.0]
+  def change
+    create_table :admissions do |t|
+      t.references :country, null: false, foreign_key: true
+      t.references :person, null: false, foreign_key: true
+      t.date :arrived_on, null: false
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -0,0 +1,43 @@
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# This file is the source Rails uses to define your schema when running `bin/rails
+# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
+# be faster and is potentially less error prone than running all of your
+# migrations from scratch. Old migrations may fail to apply correctly if those
+# migrations use external dependencies or application code.
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema[7.0].define(version: 2023_09_24_015803) do
+  create_table "admissions", force: :cascade do |t|
+    t.integer "country_id", null: false
+    t.integer "person_id", null: false
+    t.date "arrived_on", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["country_id"], name: "index_admissions_on_country_id"
+    t.index ["person_id"], name: "index_admissions_on_person_id"
+  end
+
+  create_table "countries", force: :cascade do |t|
+    t.string "name", null: false
+    t.string "iso2", limit: 2, null: false
+    t.string "iso3", limit: 3, null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["iso2"], name: "index_countries_on_iso2", unique: true
+    t.index ["iso3"], name: "index_countries_on_iso3", unique: true
+    t.index ["name"], name: "index_countries_on_name", unique: true
+  end
+
+  create_table "people", force: :cascade do |t|
+    t.string "name", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
+  add_foreign_key "admissions", "countries"
+  add_foreign_key "admissions", "people"
+end

db/seeds.rb

@@ -0,0 +1,7 @@
+# This file should contain all the record creation needed to seed the database with its default values.
+# The data can then be loaded with the bin/rails db:seed command (or created alongside the database with db:setup).
+#
+# Examples:
+#
+#   movies = Movie.create([{ name: "Star Wars" }, { name: "Lord of the Rings" }])
+#   Character.create(name: "Luke", movie: movies.first)