Merge pull request #20 from psantos10/5_relationship_volunteer_and_help

#5 - Relationship between Volunteer and Help Model

app/models/help.rb

@@ -15,4 +15,7 @@ class Help < ApplicationRecord
   validates :help_type, :title, :description, presence: true
   validates :fullname, :email, :cellphone, :province, :county, :district, :neighborhood, :address, presence: true
   validates :help_type, inclusion: { in: HELP_TYPES.keys.map(&:to_s) }
+
+  has_many :volunteer_helps, dependent: :destroy
+  has_many :volunteers, through: :volunteer_helps
 end

app/models/volunteer.rb

@@ -7,4 +7,7 @@ class Volunteer < ApplicationRecord
   validates :fullname, :email, :cellphone, :province, :county, presence: true
   validates :email, uniqueness: { case_sensitive: false }
   validates :cellphone, uniqueness: true
+
+  has_many :volunteer_helps, dependent: :destroy
+  has_many :helps, through: :volunteer_helps
 end

app/models/volunteer_help.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class VolunteerHelp < ApplicationRecord
+  enum status: { pending: 0, accepted: 1, declined: 2, canceled: 3 }
+
+  belongs_to :volunteer
+  belongs_to :help
+
+  validates :volunteer_id, uniqueness: { scope: :help_id }
+end

db/migrate/20200330232054_create_volunteer_helps.rb

@@ -0,0 +1,12 @@
+class CreateVolunteerHelps < ActiveRecord::Migration[6.0]
+  def change
+    create_table :volunteer_helps do |t|
+      t.references :volunteer, null: false, foreign_key: true
+      t.references :help, null: false, foreign_key: true
+      t.boolean :anonymous, defualt: false
+      t.integer :status
+
+      t.timestamps
+    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.define(version: 2020_03_30_173203) do
+ActiveRecord::Schema.define(version: 2020_03_30_232054) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -46,6 +46,17 @@
     t.index ["phone"], name: "index_users_on_phone", unique: true
   end
 
+  create_table "volunteer_helps", force: :cascade do |t|
+    t.bigint "volunteer_id", null: false
+    t.bigint "help_id", null: false
+    t.boolean "anonymous"
+    t.integer "status"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["help_id"], name: "index_volunteer_helps_on_help_id"
+    t.index ["volunteer_id"], name: "index_volunteer_helps_on_volunteer_id"
+  end
+
   create_table "volunteers", force: :cascade do |t|
     t.string "fullname"
     t.string "email"
@@ -60,4 +71,6 @@
     t.index ["email"], name: "index_volunteers_on_email", unique: true
   end
 
+  add_foreign_key "volunteer_helps", "helps"
+  add_foreign_key "volunteer_helps", "volunteers"
 end

spec/factories/volunteer_helps.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+FactoryBot.define do
+  factory :volunteer_help do
+    volunteer { create(:volunteer) }
+    help { create(:help) }
+    anonymous { false }
+    status { :pending }
+
+    trait :anonymous do
+      anonymous { true }
+    end
+
+    trait :accepted do
+      status { :accepted }
+    end
+
+    trait :declined do
+      status { :declined }
+    end
+
+    trait :canceled do
+      status { :canceled }
+    end
+  end
+end

spec/models/help_spec.rb

@@ -21,4 +21,9 @@
     it { is_expected.to validate_presence_of(:address) }
     it { is_expected.to validate_inclusion_of(:help_type).in_array(Help::HELP_TYPES.keys.map(&:to_s)) }
   end
+
+  describe 'associations' do
+    it { is_expected.to have_many(:volunteer_helps).dependent(:destroy) }
+    it { is_expected.to have_many(:volunteers).through(:volunteer_helps) }
+  end
 end

spec/models/volunteer_help_spec.rb

@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe VolunteerHelp, type: :model do
+  describe 'macros' do
+    it { is_expected.to define_enum_for(:status).with_values(pending: 0, accepted: 1, declined: 2, canceled: 3) }
+  end
+
+  describe 'associations' do
+    it { is_expected.to belong_to(:volunteer) }
+    it { is_expected.to belong_to(:help) }
+  end
+
+  describe 'validations' do
+    before { create(:volunteer_help) }
+
+    it { is_expected.to validate_uniqueness_of(:volunteer_id).scoped_to(:help_id) }
+  end
+end

spec/models/volunteer_spec.rb

@@ -18,4 +18,9 @@
     it { is_expected.to validate_uniqueness_of(:email).case_insensitive }
     it { is_expected.to validate_uniqueness_of(:cellphone) }
   end
+
+  describe 'associations' do
+    it { is_expected.to have_many(:volunteer_helps).dependent(:destroy) }
+    it { is_expected.to have_many(:helps).through(:volunteer_helps) }
+  end
 end

spec/spec_helper.rb

@@ -89,7 +89,7 @@
   #   # order dependency and want to debug it, you can fix the order by providing
   #   # the seed, which is printed after each run.
   #   #     --seed 1234
-  #   config.order = :random
+  config.order = :random
   #
   #   # Seed global randomization in this process using the `--seed` CLI option.
   #   # Setting this allows you to use `--seed` to deterministically reproduce