class Partner :has_many :users

And fix all the tests

app/controllers/api/v1/partners_controller.rb

@@ -30,7 +30,9 @@ def update
  partner.update(partner_status: "pending")
  elsif partner_params[:status] == "recertification_required"
  partner.update(partner_status: "recertification_required")
- RecertificationMailer.with(partner: partner).notice_email.deliver_now
+ partner.users.each do |user|
+ RecertificationMailer.notice_email(user).deliver_later
+ end
  elsif partner_params[:status] == "approved"
  partner.update(partner_status: "verified")
  else

app/mailers/recertification_mailer.rb

@@ -2,10 +2,10 @@ class RecertificationMailer < ActionMailer::Base
  default from: "[email protected]"
  layout "mailer"
 
- def notice_email
- @partner = params[:partner]
+ def notice_email(user)
+ @partner = user.partner
 
- mail to: @partner.email,
+ mail to: user.email,
  subject: "Please update your agency information"
  end
 end

app/models/partner.rb

@@ -88,7 +88,7 @@
 class Partner < ApplicationRecord
  include DiaperBankClient
 
- has_one :user, dependent: :destroy
+ has_many :users, dependent: :destroy
  has_one_attached :proof_of_partner_status
  has_one_attached :proof_of_form_990
  has_many_attached :documents

spec/mailers/recertification_mailer_spec.rb

@@ -1,15 +1,15 @@
 describe RecertificationMailer, type: :mailer do
  describe "notice_email" do
- let!(:user) { create(:user) }
- let!(:partner) { create(:partner, user: user) }
- let!(:mail) { RecertificationMailer.with(partner: partner).notice_email.deliver_now }
+ let!(:partner) { create(:partner) }
+ let!(:user) { create(:user, partner: partner) }
+ let!(:mail) { RecertificationMailer.notice_email(user).deliver_now }
 
  it "email renders the subject" do
  expect(mail.subject).to eq("Please update your agency information")
  end
 
  it "email renders the receiver email" do
- expect(mail.to).to eq([partner.user.email])
+ expect(mail.to).to eq([user.email])
  end
 
  it "email renders the sender email" do

spec/models/partner_spec.rb

@@ -89,7 +89,7 @@
 
 describe Partner, type: :model, include_shared: true do
  it { is_expected.to have_many(:partner_requests).dependent(:destroy) }
- it { is_expected.to have_one(:user).dependent(:destroy) }
+ it { is_expected.to have_many(:users).dependent(:destroy) }
 
  describe "#approve_me" do
  let(:partner) { create(:partner) }

spec/requests/api/v1/partners_requests_spec.rb

@@ -67,8 +67,8 @@
  end
 
  context "when we set the partner to recertification_required" do
- let(:user) { create(:user) }
- let(:partner) { create(:partner, user: user) }
+ let(:partner) { create(:partner) }
+ let(:user) { create(:user, partner: partner) }
  let(:params) { { partner: { diaper_partner_id: partner.diaper_bank_id, status: "recertification_required" } } }
 
  it "returns OK" do
@@ -87,7 +87,9 @@
  end
 
  it "emails a notification" do
- expect { valid_partner_update_request(params, headers) }.to change { ActionMailer::Base.deliveries.count }.by(1)
+ allow(RecertificationMailer).to receive(:notice_email).with(user)
+ valid_partner_update_request(params, headers)
+ expect(RecertificationMailer).to have_received(:notice_email).with(user)
  end
  end