class State def method_missing(method, *args, &block) eval(method.to_s.capitalize).send(:new) end end class Created < State; end class Open < State; end class Closed < State; end
Hanami::Events::Adapter.register(:google_pubsub) do Google::PubSub end Hanami::Events.new(:google_pubsub) # => event instance with your google pubsub adapter
events.subscribe('user.created') do |payload| puts payload end events.subscribe('user.*') do |payload| puts payload end events.subscribe(/\Auser\..*/) do |payload| puts payload end Subscriber
module Web::Controllers::CartItem class Create include Web::Action def call(params) halt(400) unless params.valid? if cart_repo.item_exist?(params[:item]) item = CartItemRepository.new.create_copy(params[:item]) else item = CartItemRepository.new.create(params[:item]) end analytics.call('Item Added') redirect_to routes.order_path(params[:order_id]) end end end
module Web::Controllers::CartItem class Create include Web::Action def call(params) halt(400) unless params.valid? event_store.apply(Order::Events::ItemAdded.new(payload)) if cart_repo.item_exist?(params[:item]) item = CartItemRepository.new.create_copy(params[:item]) else item = CartItemRepository.new.create(params[:item]) end analytics.call('Item Added') redirect_to routes.order_path(params[:order_id]) end end end
module Web::Controllers::CartItem class Create include Web::Action def call(params) halt(400) unless params.valid? event_store.apply(Orders::Events::ItemAdded.new(payload)) if cart_repo.item_exist?(params[:item]) item = CartItemRepository.new.create_copy(params[:item]) else item = CartItemRepository.new.create(params[:item]) end analytics.call('Item Added') redirect_to routes.order_path(params[:order_id]) end end end
module Web::Controllers::CartItem class Create include Web::Action def call(params) halt(400) unless params.valid? events = event_store.get_stream(params[:order_id]) items = @project.call(Order::Projections::ItemList, events) if items.include?(params[:item]) event_store.apply(Orders::Events::ItemAdded.new(payload)) else event_store.apply(Orders::Events::CoppyItemAdded.new(payload)) end analytics.call('Item Added') redirect_to routes.order_path(params[:order_id]) end end end
module Web::Controllers::CartItem class Create include Web::Action def call(params) halt(400) unless params.valid? events = event_store.get_stream(params[:order_id]) items = @project.call(Order::Projections::ItemList, events, {}) if items.include?(params[:item]) event_store.apply(Orders::Events::ItemAdded.new(payload)) else event_store.apply(Orders::Events::CoppyItemAdded.new(payload)) end analytics.call('Item Added') redirect_to routes.order_path(params[:order_id]) end end end
module Projections class AllTask def call(event, state) case event when Orders::Events::ItemAdded state[:orders] ||= [] state[:orders] << event.payload when Orders::Events::ItemRemoved # ... end state end end end
module Projections class AllTask def call(event, state) case event when Orders::Events::ItemAdded state[:orders] ||= [] state[:orders] << event.payload when Orders::Events::ItemRemoved # ... end state end end end
module Projections class AllTask def call(event, state) case event when Orders::Events::ItemAdded state[:orders] ||= [] state[:orders] << event.payload when Orders::Events::ItemRemoved # ... end state end end end
module Web::Controllers::CartItem class Create include Web::Action def call(params) halt(400) unless params.valid? events = event_store.get_stream(params[:order_id]) items = @project.call(Order::Projections::ItemList, events, {}) if items.include?(params[:item]) event_store.apply(Orders::Events::ItemAdded.new(payload)) else event_store.apply(Orders::Events::CoppyItemAdded.new(payload)) end analytics.call('Item Added') redirect_to routes.order_path(params[:order_id]) end end end
# analytics subscribers event_store.subscribe(Orders::Events::ItemAdded) do |event| analytics.call('Item removed', event.payload) end event_store.subscribe(Orders::Events::CoppyItemAdded) do |event| analytics.call(‘Copy of item added’, event.payload) end event_store.subscribe(Orders::Events::ItemRemoved) do |event| analytics.call(‘Item removed', event.payload) end
module Web::Controllers::CartItem class Create include Web::Action def call(params) halt(400) unless params.valid? events = event_store.get_stream(params[:order_id]) items = @project.call(Order::Projections::ItemList, events, {}) if items.include?(params[:item]) event_store.apply(Orders::Events::ItemAdded.new(payload)) else event_store.apply(Orders::Events::CoppyItemAdded.new(payload)) end redirect_to routes.order_path(params[:order_id]) end end end
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