确定rails3 jquery autocomplete插件的结果范围 [英] Scoping the results for rails3 jquery autocomplete plugin

问题描述

我正在使用 https://github.com/crowdint/rails3-jquery-autocomplete 它似乎有效。唯一的问题是让我说我​​有一个字段在所有帖子标题上执行自动完成，但我希望它只显示用户创建的帖子的标题。

I'm using https://github.com/crowdint/rails3-jquery-autocomplete and it seems to be working. The only problem is lets say I have a field performing an autocomplete on all post titles, but I want it to only show titles of posts the user has created.

有没有办法做这样的事情？即一个find_by或者什么？

Is there a way to do something like this? I.e. a find_by or something?

谢谢！

-Elliot

编辑

它在文档中说明：

If you want to display a different version of what you're looking for, you can use the :display_value option.

This options receives a method name as the parameter, and that method will be called on the instance when displaying the results.

class Brand < ActiveRecord::Base
  def funky_method
    "#{self.name}.camelize"
  end
end


class ProductsController < Admin::BaseController
  autocomplete :brand, :name, :display_value => :funky_method
end
In the example above, you will search by name, but the autocomplete list will display the result of funky_method

我觉得这可以用来做我想要完成的事情，但我不知道从哪里开始？

I feel like this could be used to make what I'm trying to accomplish happen, but I have no idea where to begin?

推荐答案

你应该覆盖方法 get_item ，例如在这些情况下我将过滤用户列表考虑到最后一个：

You should overwrite the method get_item, for example in these case I'm filtering the list of users to consider to just the last one:

class UsersController < ApplicationController
    autocomplete :user, :email, :full => true

    def index
        @users = User.all
    end

    def get_items(parameters)
        [User.last]
    end

我认为最后一次提交之一，改变了方法（#get_items）的名称。检查 autocomplete.rb 文件的版本。

I think that one of the last commits, changed the method (#get_items) name. Check you version of autocomplete.rb file.

点击此处： https://github.com/crowdint/rails3-jquery-autocomplete/commit/b3c18ac92ced2932ac6e9d17237343b512d2144d#L1R84 。

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