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Add warning threshold to products, mail when below #91
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10 changes: 10 additions & 0 deletions
10
app/interactors/warn_if_product_quantity_below_threshold.rb
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class WarnIfProductQuantityBelowThreshold | ||
include Interactor | ||
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def call | ||
btp = context.cart.cart_items.map(&:product). | ||
select(&:below_warning_threshold?). | ||
compact.uniq | ||
AdminMailer.btp_mail(btp: btp).deliver_later if btp.present? | ||
end | ||
end |
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class AdminMailer < ApplicationMailer | ||
def btp_mail(btp:) | ||
@btp = btp | ||
mail( | ||
to: ENV['KDV_ADMIN_MAIL'], | ||
subject: 'Some products are running low' | ||
) | ||
end | ||
end |
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class ApplicationMailer < ActionMailer::Base | ||
default from: 'kdv@kif.rocks' | ||
layout 'mailer' | ||
end |
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Moin, | ||
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Folgende Produkte gehen bald leer, es sind nur noch übrig jeweils: | ||
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<% @btp.each do |p| -%> | ||
* <%= p.name -%>: <%= p.quantity -%> | ||
<% end -%> | ||
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Deine KDV Admins. |
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<!DOCTYPE html> | ||
<html> | ||
<head> | ||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> | ||
<style> | ||
/* Email styles need to be inline */ | ||
</style> | ||
</head> | ||
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<body> | ||
<%= yield %> | ||
</body> | ||
</html> |
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<%= yield %> |
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class AddThresholdToProducts < ActiveRecord::Migration[5.1] | ||
def change | ||
add_column :products, :warning_threshold, :integer | ||
end | ||
end |
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56 changes: 56 additions & 0 deletions
56
spec/interactors/warn_if_product_quantity_below_threshold_spec.rb
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require 'rails_helper' | ||
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RSpec.describe WarnIfProductQuantityBelowThreshold do | ||
describe '#call' do | ||
let(:interactor) { WarnIfProductQuantityBelowThreshold.new cart: cart } | ||
let(:context) { interactor.context } | ||
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let(:products) do | ||
[ | ||
create(:product), | ||
create(:product) | ||
] | ||
end | ||
let(:cart_items) do | ||
[ | ||
create(:cart_item, quantity: 2, pricing: products[0].pricings.first), | ||
create(:cart_item, quantity: 1, pricing: products[1].pricings.first) | ||
] | ||
end | ||
let(:cart) { create :cart, cart_items: cart_items } | ||
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before do | ||
allow(AdminMailer).to receive_message_chain(:btp_mail, :deliver_later) | ||
end | ||
before { interactor.call } | ||
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context 'when there are no products below their thresholds' do | ||
it 'succeeds' do | ||
expect(context).to be_a_success | ||
end | ||
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it 'doesn\'t send an email' do | ||
expect(AdminMailer).to_not have_received(:btp_mail) | ||
end | ||
end | ||
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context 'when some products are below their threshold' do | ||
let(:products) do | ||
[ | ||
create(:product, quantity: 5, warning_threshold: 12), | ||
create(:product, quantity: 12, warning_threshold: 5), | ||
create(:product, quantity: 5, warning_threshold: 10) | ||
] | ||
end | ||
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it 'succeeds' do | ||
expect(context).to be_a_success | ||
end | ||
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it 'sends an email' do | ||
expect(AdminMailer).to have_received(:btp_mail). | ||
with(btp: [products[0]]) | ||
end | ||
end | ||
end | ||
end |
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