带有嵌套资源和 :find_by 的 CanCan gem

发布于 2024-12-10 12:54:08 字数 410 浏览 0 评论 0原文

我使用 CanCan load_and_authorize_resource 辅助方法来获取资源和生成授权，但我有一个像这样的嵌套资源

load_and_authorize_resource :company
load_and_authorize_resource :accountings, :through => :company, :class => 'Departments::Accounting'

但我需要 @accountings 由另一个属性而不是 Departmets::Accounting id 找到，并为该属性提供一个值，例如

@accountings = @company.find_by_period_id(@period.id)

原文

Im using CanCan load_and_authorize_resource helper method for fetching resources and generating authorization, but I have a nested resource like this

load_and_authorize_resource :company
load_and_authorize_resource :accountings, :through => :company, :class => 'Departments::Accounting'

But I need
@accountings be found by another attribute rather that the Departmets::Accounting id and give a value to that attribute, for example

@accountings = @company.find_by_period_id(@period.id)

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情独悲 2024-12-17 12:54:08

您可以使用两个额外选项来完成此操作：

load_and_authorize_resource :accountings,
    :through => :company, :class => 'Departments::Accounting',
    :find_by => :attr, # :period_id in your example
    :id_param => :something # this searches the params hash for
                            # params[:something], and sends that
                            # value to .find_by_attr

检查 load_and_authorize_resource 的代码这里。

You can do it with two extra options:

load_and_authorize_resource :accountings,
    :through => :company, :class => 'Departments::Accounting',
    :find_by => :attr, # :period_id in your example
    :id_param => :something # this searches the params hash for
                            # params[:something], and sends that
                            # value to .find_by_attr

Check the code for load_and_authorize_resource here.

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