从参数删除散列（阵列）和投入变量 [英] Remove hash (array) from param and put in variable

问题描述

我从表单中检索控制器的参数，从中我想删除一个散列并投入供以后使用的变量。

I'm retrieving a param in a controller from a form, from which I want to remove a hash and put into a variable for later use.

让我们假设参数包括以下内容：

Let's assume the param include the following:

@form_data = params[:project] // <-- :id, :title, :description, :members

：成员是一个数组（从复选框检索），我想放在供以后使用新的变量，数组，它应该从参数中删除。

':members' is an array (retrieved from checkboxes) and I want that array to be put in a new variable for later use, and it should be removed from the param.

@members // <-- should contain :members 

@project = Project.new(params[:project])  // <-- ':members' is removed

怎么能这样做？

推荐答案

您可以使用的删除方法

@members = params[:project].delete(:members)
@project = Project.new(params[:project])

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