[Rails] 修改預設的 scaffold 模板

修改 model

app/lib/templates/active_record/model/model.rb 官方範例

修改 view

app/lib/templates/scaffold/_form.html.erb app/lib/templates/scaffold/edit.html.erb app/lib/templates/scaffold/index.html.erb app/lib/templates/scaffold/new.html.erb app/lib/templates/scaffold/show.html.erb 官方範例

修改 controller

app/lib/scaffold_controller/controller.rb 官方範例

修改 rspec

app/lib/templates/rspec/scaffold/controller_spec.rb 官方範例

寫法

<%% %> 代表可以產生rails語法 在裡面可以塞 <% %> 變數 語法

例如：

<%%= link_to 'edit', edit_<%= singular_table_name %>_path(<%= singular_table_name %>) %>

最後產生的 template 會是

<%= link_to 'edit', edit_user_path(user) %>

變數整理

假設 rails g scaffold System::ModelName attr1 attr2

application_name:       my_app
attributes_names:       ["attr1", "attr2"]
class_path:             ["system"]
regular_class_path:     ["system"]

singular_name:          model_name
plural_name:            model_names
human_name:             Model name
plural_file_name:       model_names
fixture_file_name:      model_names

class_name:             System::ModelName
file_path:              system/model_name
i18n_scope:             system.model_name
model_resource_name:    system_model_name
singular_route_name:    system_model_name
singular_table_name:    system_model_name
plural_route_name:      system_model_names
plural_table_name:      system_model_names
table_name:             system_model_names
redirect_resource_name: @system_model_name
route_url:              /system/model_names

url_helper_prefix:      system_model_name
index_helper:           system_model_names
new_helper:             new_system_model_name_url
edit_helper:            edit_system_model_name_url(@system_model_name)
show_helper:            system_model_name_url(@system_model_name)

故障排除

Q1. 調整後產生scaffold，但是模板沒變 Ans.: 須先執行 spring stop 再產生scaffold

參考

1. https://api.rubyonrails.org/classes/Rails/Generators/NamedBase.html#method-i-application_name