Rails重命名协会

问题描述

我有两个模型，TreeNode和User.每个用户has_one TreeNode，这是树的根.

I have two models, TreeNode and User. Each user has_one TreeNode, which is the root of the tree.

class TreeNode
  acts_as_tree
  belongs_to :user
end

class User
  has_one :tree_node
end

我想进行此设置，以便Rails进行关联，以便我可以做类似的事情

I would like to have this setup so that rails will make the association so that I can do something like

User.first.tree

代替

User.first.tree_node

人们将如何做这样的事情?

How would one go about doing something like this?

推荐答案

has_one :tree, :class_name => "TreeNode"

请记住，这里假定tree_nodes表中的外键名为user_id.

Keep in mind, this assumes a foreign key called user_id in the tree_nodes table.

编辑:如果这样不起作用，您可能可能需要指定外键(:foreign_key => :user_id)，但我认为不是.

Edit: If that doesn't work, you might need to specify the foreign key (:foreign_key => :user_id), but I don't think so.

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