Ruby-on-rails button_to :action => 'destroy' 寻找 'show'
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button_to :action => 'destroy' looks for 'show'
提问by pedalpete
This seems incredibly similar to a question I had answered just a few days ago, but the solution then isn't working now.
这似乎与我几天前回答的一个问题非常相似，但当时的解决方案现在不起作用。
I'm building a rails app, and I am trying to have a button_to trigger a destroy in a different controller.
我正在构建一个 rails 应用程序，并且我正在尝试使用 button_to 在不同的控制器中触发销毁。
the code I have for the button is
我的按钮代码是
<%= button_to "delete", :controller => :meals,
:action => 'destroy',
:recipe_id => recipe.id,
:method => :post >
when I click the delete button, i get a 'no matches for meals/3' which is the current meal_id.
当我点击删除按钮时，我得到一个“没有匹配的膳食/3”，这是当前的膳食 ID。
the destroy in the meals controller looks like this
膳食控制器中的销毁看起来像这样
def destroy
@meal = Meal.where("current_user.id => ? AND recipe_id => ?", current_user.id, params[:recipe_id]).first
@meal.destroy
respond_to do |format|
format.html { redirect_to :controller => "user" , :action => "show" }
format.xml { head :ok }
end
end
it appears as though the button_to is completely ignoring the :action and requesting show which does not exist and shouldn't exist.
似乎 button_to 完全忽略了 :action 并请求不存在也不应该存在的节目。
回答by gertas
And how you part of routes.rb for that one looks like?
Because if you use map.resources then destroy has same path as show but :method => :delete(which is virtual verb implemented by form and _method=delete param).
你如何为那一个路由的一部分看起来像？因为如果您使用 map.resources 然后 destroy 具有与 show but 相同的路径:method => :delete（这是由 form 和 _method=delete 参数实现的虚拟动词）。
Try this:
尝试这个：
<%= button_to "delete", {:controller => :meals,
:action => 'destroy', :id => recipe.id }, :method => :delete %>
or if recipeis instance of Mealclass then
或者如果recipe是Meal类的实例然后
<%= button_to "delete", @recipe, :method => :delete %>
Mind the curly brackets.
注意大括号。
回答by Sasi_Kala
I know it is way too late for an answer but hope it may help somebody(using Rails 4).
我知道现在给出答案为时已晚，但希望它可以帮助某人（使用 Rails 4）。
<%= button_to "delete", meal_path(:id => recipe.id), :method => :delete %>
