[英]Don't work behaviors in Datamapper
I work with Sinatra.我和辛纳屈一起工作。 This is my models.
这是我的模型。
class Post
include DataMapper::Resource
property :id, Serial
property :title, String
property :body, Text
property :posted, Boolean, :default => true
has n, :comments
has n, :tags
end
class Comment
include DataMapper::Resource
property :id, Serial
property :user, String
property :body, Text
property :posted, Boolean, :default => false
belongs_to :post
end
class Tag
include DataMapper::Resource
property :id, Serial
property :tag, String
property :weight, Integer, :default => 1
belongs_to :post
end
Create a post创建帖子
tags = params[:tags].split(' ')
post = Post.new(:title=>params[:title],:body=>params[:body])
tags.each { |tg|
post.tags << Tag.create(:tag=>tg)
}
redirect '/admin' if post.save
But no tags.但是没有标签。 What do I need to fix?
我需要解决什么问题?
If you use one-to-many relation, you should create tags with :post
set to post
:如果您使用一对多关系,您应该创建标签,并将
:post
设置为post
:
tags.each { |tg|
Tag.create(:tag => tg, :post => post)
}
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