保存屬於sinatra的對象

Question

我正在用sinatra構建博客帖子應用程序。每篇文章都會有很多評論。我可以創建Post但comments不想被創建，我不知道爲什麼。

main.rb的

get "/" do 
    @posts = Post.all 
    haml :index 
end 

post '/new/post' do 
    Post.create params['post'] 
    redirect to('/') 
end 

post '/:id' do 
    Post.get(params[:id]).comments.create(params['comment']) 
    redirect to('/') 
end 

DataMapper.setup(:default, ENV['DATABASE_URL'] || "sqlite3://#{Dir.pwd}/development.db") 

class Post 
    include DataMapper::Resource 
    property :id,    Serial 
    property :title,   String 
    property :content,   String 
    property :photo,   String 
    property :rating,   Integer 
    has n, :comments, :constraint => :destroy 

end 

class Comment 
    include DataMapper::Resource 
    property :id,    Serial 
    property :content,   String 
    belongs_to :post 

end 
DataMapper.finalize 

index.haml

%form.new{:action => "/new/post", :method => "POST"} 
    %input{:name => "post[title]", :type => "text"}/ 
    %input{:name => "post[content]", :type => "text"}/ 
    %input{:type => "submit", :value => "Publier"}/ 

%form.new{:action => "/#{post.id}", :method => "GET"} 
    %input{:name => "_method", :type => "hidden", :method => "POST"} 
    %input{:content => "comment[content]", :type => "text"}/ 
    %input.button{:type => "submit", :value => "Commenter !"} 

Answer 1

在您的形式，方法是GET。但在你的應用程序中它是POST。

form.new{:action => "/#{post.id}", :method => "POST"}