我做了一个嵌套的资源(如下)。在coffee_profile#show视图上时,通过链接(/coffee_profiles/:coffee_profile_id/recipes/new(.:format))为该特定配置文件创建特定配方。
resources :coffee_profiles do
resources :recipes, only: [:new, :create, :show]
end
我想捕获URL中存在的coffee_profile_id,以引用该食谱所属的coffee_profile,并隐藏在hidden_field的食谱#new表单中,以便在提交时将其与其他参数一起传递。
但是,我不知道如何获取该ID本身,hidden_field会创建此参数,但是在提交coffee_profile_id之后,它将填充为nil:
这是来自recipes_controller.rb
def new
@recipe = Recipe.new
end
def create
@recipe = current_user.recipes.build(recipe_params)
if @recipe.save
flash[:success] = "Recipe created!"
redirect_to root_path
else
flash[:error] = @recipe.errors.inspect
render :new
end
end
这是食谱#new form_for:
<%= form_for(@recipe) do |f| %>
...
<% end %>
感谢您的帮助,如果您需要更多信息/代码,请告诉我。
答案 0 :(得分:0)
由于您使用的是嵌套资源,因此必须以某种方式显示coffee_profile。
实际上,您无需将食谱存储在某个地方,因为您的食谱具有has_many和belongs_to关系。
您需要像这样更改表格:
<%= form_for([@coffee_profile, Recipe.new]) do |f| %>
<div class="recipes_form_item">
<%= f.label :coffee %>
<%= f.text_field :coffee %>
</div>
<div class="recipes_form_item">
<%= f.label :quantity %>
<%= f.number_field :quantity %>
</div>
<div class="recipes_form_item">
<%= f.label :method %>
<%= f.text_field :method %>
</div>
<div class="recipes_form_item">
<%= f.label :water_temperature %>
<%= f.number_field :water_temperature %>
</div>
<div class="recipes_form_item">
<%= f.label :water_amount %>
<%= f.number_field :water_amount %>
</div>
<div class="recipes_form_item">
<%= f.label :grind %>
<%= f.text_field :grind %>
</div>
<div class="recipes_form_item">
<%= f.label :aroma %>
<%= f.text_field :aroma %>
</div>
<div class="recipes_form_item">
<%= f.label :aroma_points %>
<%= f.number_field :aroma_points %>
</div>
<div class="recipes_form_item">
<%= f.label :taste %>
<%= f.text_field :taste %>
</div>
<div class="recipes_form_item">
<%= f.label :taste_points %>
<%= f.number_field :taste_points %>
</div>
<div class="recipes_form_item">
<%= f.label :body %>
<%= f.text_field :body %>
</div>
<div class="recipes_form_item">
<%= f.label :body_points %>
<%= f.number_field :body_points %>
</div>
<div class="recipes_form_item">
<%= f.label :astringency %>
<%= f.text_field :astringency %>
</div>
<div class="recipes_form_item">
<%= f.label :astringency_points %>
<%= f.number_field :astringency_points %>
</div>
<div class="recipes_form_item">
<%= f.label :brew_time %>
<%= f.number_field :brew_time %>
</div>
<div class="recipes_form_item">
<%= f.submit :Submit %>
</div>
<% end %>
现在,在coffee_profile_controller内,添加新方法(或在任何呈现食谱的表单的位置:
@coffee_profile = CoffeeProfile.find(params[:id])
现在,在您的recipe_controller内部添加create:
@coffee_profile = CoffeeProfile.find(params[:id])
@recipe = @coffee_profile.recipes.create(recipe_params)
if @recipe.save
redirect_to root_path
end
在新方法内部也进行如下更改:
def新 @coffee_profile = CoffeeProfile.find(params [:id]) @recipe = @ coffee_profile.recipe.new 结束
,对于cipal_params,
确保您接受:coffee_profile_id
params.require(:recipe).permit(:id, your other values and :coffee_profile_id)
现在,当您进入控制台时,您可以说:@recipe = Recipe.last
然后是@recipe.coffee_profile
,这将为您提供有关咖啡资料的所有信息。
问候!