link_to in Rails 7

Question

我是RubyonRails的新手，我正在制作一个显示数据库中一个表的视图页面。我想添加一个链接以删除此记录。我尝试了下面写的代码，但没有任何效果。

浏览器不断刷新，什么也不做。

红宝石3.1.2轨道7.0.4

<%= link_to 'Delete', @friend, data: {turbo_method: :delete, turbo_confirm: 'Sure?'}, class: "btn btn-danger" %>

还有这个

<%= link_to 'Delete', @friend, method: :delete, data: { confirm: 'Are you sure?' }, class: "btn btn-danger" %>

html.erb代码

<p style="color: green"><%= notice %></p>
<%= render @friend %>
<div>
<%= link_to "Edit this friend", edit_friend_path(@friend) %> |
<%= link_to "Back to friends", friends_path %>
<%#= button_to "Destroy this friend", @friend, method: :delete,data: {turbo_confirm: 'Are you sure?'} %>
<%#= button_to "Destroy this friend", @friend, method: :delete,data: {turbo_confirm: 'Are you sure?'} %>
<%= link_to 'Delete', @friend, method: :delete, data: { confirm: 'Are you sure?' }, class: "btn btn-danger" %>
</div>

控制器代码

class FriendsController < ApplicationController
before_action :set_friend, only: %i[ show edit update destroy ]
# GET /friends or /friends.json
def index
@friends = Friend.all
end
# GET /friends/1 or /friends/1.json
def show
end
# GET /friends/new
def new
@friend = Friend.new
end
# GET /friends/1/edit
def edit
end
# POST /friends or /friends.json
def create
@friend = Friend.new(friend_params)
respond_to do |format|
if @friend.save
format.html { redirect_to friend_url(@friend), notice: "Friend was successfully created." }
format.json { render :show, status: :created, location: @friend }
else
format.html { render :new, status: :unprocessable_entity }
format.json { render json: @friend.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /friends/1 or /friends/1.json
def update
respond_to do |format|
if @friend.update(friend_params)
format.html { redirect_to friend_url(@friend), notice: "Friend was successfully updated." }
format.json { render :show, status: :ok, location: @friend }
else
format.html { render :edit, status: :unprocessable_entity }
format.json { render json: @friend.errors, status: :unprocessable_entity }
end
end
end
# DELETE /friends/1 or /friends/1.json
def destroy
@friend.destroy
respond_to do |format|
format.html { redirect_to friends_url, notice: "Friend was successfully destroyed." }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_friend
@friend = Friend.find(params[:id])
end
# Only allow a list of trusted parameters through.
def friend_params
params.require(:friend).permit(:first_name, :last_name, :email, :phone, :twitter)
end
end

Answer 1

您的代码应该可以使用

<%= link_to 'Delete', @friend,
data: {turbo_method: :delete, turbo_confirm: 'Sure?'}, class: "btn btn-danger" %>

但使用button_to生成带有按钮的form标签更可靠

<%= button_to 'Delete', @friend,
method: :delete, form: {data: {turbo_confirm: 'Sure?'}}, class: "btn btn-danger" %>