Initial commit

app/models/project_membership.rb

@@ -0,0 +1,47 @@
+class ProjectMembership < ApplicationRecord
+  belongs_to :project
+  belongs_to :user
+
+  validates :user_id, uniqueness: { scope: :project_id, message: "already belongs to this Project" }
+  validate :account_manager_is_prohibited
+
+  scope :with_account_auth, -> (account) { joins(user: :account_auths).where(account_auths: { account_id: account }) }
+  scope :order_by_user_role_and_user_email, -> (account) { with_account_auth(account).order("account_auths.role DESC, users.email") }
+
+  attr_accessor :user_email
+
+  def new_user?
+    @user_is_new
+  end
+
+  def save_and_update_account_membership
+    ApplicationRecord.transaction do
+      if User.exists?(email: user_email)
+        @user_is_new = false
+        self.user = User.find_by(email: user_email)
+      else
+        @user_is_new = true
+        self.user = Oath::Services::SignUp.new(email: user_email, password: SecureRandom.hex).perform
+      end
+
+      account_auth = user.account_auths.find_or_initialize_by(account: project.account)
+
+      if !(user.save && account_auth.save && save)
+        raise ActiveRecord::Rollback
+        return false
+      end
+
+      return true
+    end
+  end
+
+  private
+
+  def account_manager_is_prohibited
+    return if project.nil?
+
+    if user.account_manager?(project.account)
+      errors.add(:user, "is already an account manager")
+    end
+  end
+end