CakePHP 关联、可容纳和线程
您好，我有几个关于协会及其在案件中如何发挥作用的问题 复杂的 find() 调用。
如果我有一个模型Post和一个模型Comment，后者有一个parent_id字段 我想获取一篇带有相关评论的帖子，我是否只需执行一个 find('threaded', ...) 在 Post 本身上，否则会导致错误，因为 Post 不会 有parent_id吗？我特别关心可包含+线程查找。 （这 我在这里给出的示例是我实际需要实现的简化版本）
关联名称的意义是什么？ Containable 是否适用于关联名称 或型号名称？ （我想知道这一点的原因是因为我试图通过特定于条件的模型关联来实现多态模型，通常对同一模型有多个关联）
Hi I've got a couple of questions regarding associations and how they play in cases
of complex find() calls.
If I've got a model Post and a model Comment with the latter having a parent_id field
and I want to fetch a post with its associated comments threaded, do I simply perform a
find('threaded', ...) on Post itself or will this result in an error because Post doesn't
have a parent_id? I am particularly concerned about a Containable + Threaded find. (the
example I give here is a simplified version of what I actually need to implement)What is the significance of Association Names? Does Containable work on association names
or model names? (the reason I want to know this is because I'm trying to implement polymorphic models by having condition-specific model associations, often having multiple associations to the same model)
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我认为，containable 不支持在包含的模型上进行线程查找。例如，您的
comments表中可能有一个post_id列，并执行以下操作：$this->注释->find('线程', array(
'条件' =>大批（
'post_id'=>; 5)));
虽然书上可能说 Containable 使用模型名称，但当我在同一模型之间有多个联接时，我经常在 Containable 中使用关联名称。对于简单的项目，模型名称通常与关联名称相同，因此这可能就是书上这么说的原因。
I think that containable would not support threaded finds on the contained models. EG you might have a
post_idcolumn in yourcommentstable, and do something like:$this->Comment->find('threaded', array(
'conditions' => array(
'post_id' => 5)));
Although the book may say that Containable uses the model name, I have regularly used the association name in Containable when I have multiple joins between the same models. For simple projects, the model name is usually the same as the association name, so that may be why the book says that.