有没有办法在路由参数中放入多个参数？ | 有没有办法在路由参数中放入多个参数

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问题描述

我有一条路线获得‘/ catalog /：gender /’=> catalog＃gender 。 ：gender 参数在我的控制器中使用，因此 @products = Product.where（gender：params [：gender]）。all 。

I have a route get '/catalog/:gender/' => 'catalog#gender'. The :gender param is used in my controller like so @products = Product.where(gender: params[:gender]).all.

所以我可以使用 / catalog / male / 来获取所有男性产品和 / catalog / female / 获取所有女性产品。问题是，是否有人可以同时传递 male 和 female 参数并获取所有产品？ / p>

So I can use /catalog/male/ to get all male products and /catalog/female/ to get all female products. The question is, is there a way somebody could possibly pass both male and female parameters and get all the products?

推荐答案

您可以通过 / catalog / all / 获得所有产品，并在您的控制器中：

You can pass /catalog/all/ to get all products, and in your controller:

if params[:gender] == "all"
  @products = Product.all
else
  @products = Product.where(gender: params[:gender])
end

或渲染 gender 参数可选 get'/ catalog（/：gender）'并然后在您的控制器中：

Or render gender params optional get '/catalog(/:gender)' and then in your controller:

if params[:gender]
  @products = Product.where(gender: params[:gender])
else
  @products = Product.all
end

要完成答案，请也可以解决您的问题。

To complete answer, Query string can resolve your issue too.

我们创建一条路径 / catalog / ，并提交一个 / catalog这样的数组吗？性别[] =男性和性别[] =女性。

Let's create a route /catalog/, and submit an array like /catalog?gender[]=male&gender[]=female.

# params[:gender] = ["male", "female"]
# SELECT "catalogs".* FROM "catalogs" WHERE "catalogs"."gender" IN ('male', 'female')
@products = Catalog.where(gender: params[:gender])

要完成此解决方案的答案：

Answers to complete this solution:

Correct way to pass multiple values for same parameter name in GET request
How to pass an array within a query string?

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