根据这个拉取请求,我可以看到需要将一个数组传递给 form_with
的model参数。然而,当我提供以下内容时:
<%= form_with(model: [@trip, @activity], local: true) do |f| %>
...
<% end %>
ActionView::Template::Error (undefined method activity_path' for #<#<Class:0x007f80231e3070>:0x007f8023010dd8>):
Rails将返回此错误信息。我的路由文件如下:
resources :trips do
resources :activities
end
rake routes
的输出如下:
trip_activities GET /trips/:trip_id/activities(.:format) activities#index
POST /trips/:trip_id/activities(.:format) activities#create
new_trip_activity GET /trips/:trip_id/activities/new(.:format) activities#new
edit_trip_activity GET /trips/:trip_id/activities/:id/edit(.:format) activities#edit
trip_activity GET /trips/:trip_id/activities/:id(.:format) activities#show
PATCH /trips/:trip_id/activities/:id(.:format) activities#update
PUT /trips/:trip_id/activities/:id(.:format) activities#update
DELETE /trips/:trip_id/activities/:id(.:format) activities#destroy
trips GET /trips(.:format) trips#index
POST /trips(.:format) trips#create
new_trip GET /trips/new(.:format) trips#new
edit_trip GET /trips/:id/edit(.:format) trips#edit
trip GET /trips/:id(.:format) trips#show
PATCH /trips/:id(.:format) trips#update
PUT /trips/:id(.:format) trips#update
DELETE /trips/:id(.:format) trips#destroy
我的 activities_controller.rb 文件 -
before_action :set_activity, only: %i[show update edit destroy]
def edit; end
def update
dates = calculate_datetimes(params[:date_range])
@activity.assign_attributes(name: params[:name],
summary: params[:summary],
start_datetime: dates[0],
end_datetime: dates[1])
if @activity.save
flash[:success] = 'Activity successfully updated'
redirect_to(@trip)
else
set_humanized_daterange
render :edit
end
end
private
def set_activity
@activity = Activity.find(params[:id])
end
简而言之 - 我应该如何为嵌套资源设置我的form_with,为什么这个表单认为我想要使用activity_path
?理想情况下,我想将此表单移动到一个局部文件中,并在我的#new和#edit操作中都使用相同的表单。