Phoenix上带名称的param和没有名称的param有什么区别 [英] What is the difference between param with name and no name param on Phoenix

问题描述

如果我在router.ex中编写(A)和(B)之类的参数.

If I write params like (A) and (B) in router.ex.

get "/index/:first/:second", IndexController, :index #(A)
get "/index/:first", IndexController, :index #(B)

应该收集(1)或(2)哪一个?

which one should be collect (1) or (2)?

conn |>
  redirect(to: index_path(conn, :index, first: first, second: second)) #(1)

conn |>
  redirect(to: index_path(conn, :index, first, second: second)) #(2)

我不知道要解释什么.

推荐答案

我不确定我是否理解这个问题，但我想，首先，在连接和动作名称之后，您传递命名的参数，然后据我所知，最后一个参数是查询字符串参数.

I am not sure I understood the question but off the top of my head, I think, first, after connection and action name, you pass the named params and then, the last argument is the query string params, as far as I remember.

所以

get "/index/:first/:second", IndexController, :index #(A)

应该是

index_path(conn, :index, first, second)

或者如果您需要一些查询参数:

or if you want some query params:

index_path(conn, :index, first, second, _format: "json")

这篇关于Phoenix上带名称的param和没有名称的param有什么区别的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！