Rails gem rails3-jquery-autocomplete 如何按用户范围 [英] Rails gem rails3-jquery-autocomplete how to scope by user

问题描述

我正在使用 Rails gem rails3-jquery-autocomplete 为帖子添加类别.

I'm using the Rails gem rails3-jquery-autocomplete to add categories to posts.

我想将搜索限制为在结果中仅包含属于当前用户或帖子作者的类别.

I would like to restrict the search to include only categories that belong to the current user or post's author in the results.

文档说我可以指定一个范围:

The documentation says that I can specify a scope:

:范围

添加了使用范围的选项.在数组中传递范围.例如:范围=>[:scope1, :scope2]

Added option to use scopes. Pass scopes in an array. e.g :scopes => [:scope1, :scope2]

但我不确定如何在此处传递用户 ID?

But I'm not sure how I would pass the user id here?

这似乎是一个常见的场景，我是否遗漏了一些明显的东西?

It seems like a comon scenario, am I missing something obvious?

我找到了一个建议修改 get_item 方法的答案，但这似乎破坏了自动完成

I found an answer that suggests modifying the get_item method, but that seems to break the auto-complete

为 rails3 jquery 自动完成插件确定结果范围

推荐答案

在posts_controller中:

 def get_autocomplete_items(parameters)
    items = super(parameters)
    items = items.where(:user_id => current_user.id)
  end

我先调用原来的get_autocomplete_items方法，然后通过current_user.id过滤掉结果.

I'm first calling the original get_autocomplete_items method, and then filtering out the results by current_user.id.

这个问题有帮助:Rails 3:仍使用 alias_method_chain?

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