NoMethodError in Corzinus::Carts#edit

Showing /home/yaroslav/Learn/Rails/corzinus/app/views/corzinus/carts/_bottom_panel.html.haml where line #6 raised:

undefined method `coupon_options' for #<#<Class:0x005653946cb680>:0x005653951e0b60>
Extracted source (around line #6):
4
5
6
7
8
9
              
.input-group.corzinus-input-group
= field.simple_fields_for :coupon, @coupon_form do |coupon|
= coupon.input :code, coupon_options(coupon)
.mb-30
= field.submit t('corzinus.carts.update_cart'),
class: 'btn btn-primary mb-15 res-block'

Trace of template inclusion: /home/yaroslav/Learn/Rails/corzinus/app/views/corzinus/carts/edit.html.haml

Rails.root: /home/yaroslav/Learn/Rails/corzinus/spec/dummy

Application Trace | Framework Trace | Full Trace
/home/yaroslav/Learn/Rails/corzinus/app/views/corzinus/carts/_bottom_panel.html.haml:6:in `block in __home_yaroslav__earn__ails_corzinus_app_views_corzinus_carts__bottom_panel_html_haml__771017104773668598_47458490927500'
haml (4.0.7) lib/haml/helpers.rb:368:in `block in capture_haml'
haml (4.0.7) lib/haml/helpers.rb:608:in `with_haml_buffer'
haml (4.0.7) lib/haml/helpers.rb:364:in `capture_haml'
haml (4.0.7) lib/haml/helpers/xss_mods.rb:61:in `capture_haml_with_haml_xss'
haml (4.0.7) lib/haml/helpers/action_view_mods.rb:45:in `capture_with_haml'
actionview (5.0.1) lib/action_view/helpers/form_helper.rb:720:in `fields_for'
actionview (5.0.1) lib/action_view/helpers/form_helper.rb:1585:in `fields_for'
simple_form (3.4.0) lib/simple_form/action_view_extensions/builder.rb:27:in `simple_fields_for'
/home/yaroslav/Learn/Rails/corzinus/app/views/corzinus/carts/_bottom_panel.html.haml:5:in `__home_yaroslav__earn__ails_corzinus_app_views_corzinus_carts__bottom_panel_html_haml__771017104773668598_47458490927500'
actionview (5.0.1) lib/action_view/template.rb:159:in `block in render'
activesupport (5.0.1) lib/active_support/notifications.rb:166:in `instrument'
actionview (5.0.1) lib/action_view/template.rb:354:in `instrument'
actionview (5.0.1) lib/action_view/template.rb:157:in `render'
actionview (5.0.1) lib/action_view/renderer/partial_renderer.rb:343:in `render_partial'
actionview (5.0.1) lib/action_view/renderer/partial_renderer.rb:311:in `block in render'
actionview (5.0.1) lib/action_view/renderer/abstract_renderer.rb:42:in `block in instrument'
activesupport (5.0.1) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (5.0.1) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (5.0.1) lib/active_support/notifications.rb:164:in `instrument'
actionview (5.0.1) lib/action_view/renderer/abstract_renderer.rb:41:in `instrument'
actionview (5.0.1) lib/action_view/renderer/partial_renderer.rb:310:in `render'
actionview (5.0.1) lib/action_view/renderer/renderer.rb:47:in `render_partial'
actionview (5.0.1) lib/action_view/helpers/rendering_helper.rb:35:in `render'
haml (4.0.7) lib/haml/helpers/action_view_mods.rb:10:in `block in render_with_haml'
haml (4.0.7) lib/haml/helpers.rb:89:in `non_haml'
haml (4.0.7) lib/haml/helpers/action_view_mods.rb:10:in `render_with_haml'
/home/yaroslav/Learn/Rails/corzinus/app/views/corzinus/carts/edit.html.haml:18:in `block in __home_yaroslav__earn__ails_corzinus_app_views_corzinus_carts_edit_html_haml___4271156945944786766_47458492025540'
haml (4.0.7) lib/haml/helpers/action_view_mods.rb:137:in `block (2 levels) in form_for_with_haml'
haml (4.0.7) lib/haml/helpers.rb:278:in `with_tabs'
haml (4.0.7) lib/haml/helpers/action_view_mods.rb:137:in `block in form_for_with_haml'
actionview (5.0.1) lib/action_view/helpers/capture_helper.rb:39:in `block in capture'
actionview (5.0.1) lib/action_view/helpers/capture_helper.rb:203:in `with_output_buffer'
haml (4.0.7) lib/haml/helpers/action_view_xss_mods.rb:5:in `with_output_buffer_with_haml_xss'
actionview (5.0.1) lib/action_view/helpers/capture_helper.rb:39:in `capture'
haml (4.0.7) lib/haml/helpers/action_view_mods.rb:52:in `capture_with_haml'
actionview (5.0.1) lib/action_view/helpers/form_helper.rb:450:in `form_for'
haml (4.0.7) lib/haml/helpers/action_view_mods.rb:139:in `form_for_with_haml'
haml (4.0.7) lib/haml/helpers/action_view_xss_mods.rb:28:in `form_for_with_haml_xss'
simple_form (3.4.0) lib/simple_form/action_view_extensions/form_helper.rb:26:in `block in simple_form_for'
simple_form (3.4.0) lib/simple_form/action_view_extensions/form_helper.rb:45:in `with_simple_form_field_error_proc'
simple_form (3.4.0) lib/simple_form/action_view_extensions/form_helper.rb:25:in `simple_form_for'
/home/yaroslav/Learn/Rails/corzinus/app/views/corzinus/carts/edit.html.haml:13:in `__home_yaroslav__earn__ails_corzinus_app_views_corzinus_carts_edit_html_haml___4271156945944786766_47458492025540'
actionview (5.0.1) lib/action_view/template.rb:159:in `block in render'
activesupport (5.0.1) lib/active_support/notifications.rb:166:in `instrument'
actionview (5.0.1) lib/action_view/template.rb:354:in `instrument'
actionview (5.0.1) lib/action_view/template.rb:157:in `render'
actionview (5.0.1) lib/action_view/renderer/template_renderer.rb:54:in `block (2 levels) in render_template'
actionview (5.0.1) lib/action_view/renderer/abstract_renderer.rb:42:in `block in instrument'
activesupport (5.0.1) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (5.0.1) lib/active_support/notifications/instrumenter.rb:21:in `instrument'
activesupport (5.0.1) lib/active_support/notifications.rb:164:in `instrument'
actionview (5.0.1) lib/action_view/renderer/abstract_renderer.rb:41:in `instrument'
actionview (5.0.1) lib/action_view/renderer/template_renderer.rb:53:in `block in render_template'
actionview (5.0.1) lib/action_view/renderer/template_renderer.rb:61:in `render_with_layout'
actionview (5.0.1) lib/action_view/renderer/template_renderer.rb:52:in `render_template'
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actionpack (5.0.1) lib/action_controller/metal/renderers.rb:142:in `render_to_body'
actionpack (5.0.1) lib/abstract_controller/rendering.rb:26:in `render'
actionpack (5.0.1) lib/action_controller/metal/rendering.rb:36:in `render'
actionpack (5.0.1) lib/action_controller/metal/instrumentation.rb:44:in `block (2 levels) in render'
activesupport (5.0.1) lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
/home/yaroslav/.rbenv/versions/2.3.1/lib/ruby/2.3.0/benchmark.rb:308:in `realtime'
activesupport (5.0.1) lib/active_support/core_ext/benchmark.rb:12:in `ms'
actionpack (5.0.1) lib/action_controller/metal/instrumentation.rb:44:in `block in render'
actionpack (5.0.1) lib/action_controller/metal/instrumentation.rb:87:in `cleanup_view_runtime'
activerecord (5.0.1) lib/active_record/railties/controller_runtime.rb:25:in `cleanup_view_runtime'
actionpack (5.0.1) lib/action_controller/metal/instrumentation.rb:43:in `render'
actionpack (5.0.1) lib/action_controller/metal/implicit_render.rb:36:in `default_render'
actionpack (5.0.1) lib/action_controller/metal/basic_implicit_render.rb:4:in `block in send_action'
actionpack (5.0.1) lib/action_controller/metal/basic_implicit_render.rb:4:in `tap'
actionpack (5.0.1) lib/action_controller/metal/basic_implicit_render.rb:4:in `send_action'
actionpack (5.0.1) lib/abstract_controller/base.rb:188:in `process_action'
actionpack (5.0.1) lib/action_controller/metal/rendering.rb:30:in `process_action'
actionpack (5.0.1) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (5.0.1) lib/active_support/callbacks.rb:126:in `call'
activesupport (5.0.1) lib/active_support/callbacks.rb:506:in `block (2 levels) in compile'
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/home/yaroslav/.rbenv/versions/2.3.1/lib/ruby/2.3.0/webrick/server.rb:296:in `block in start_thread'

Request

Parameters:

None

Response

Headers:

None