所以我一直在创建具有Pings表的rails应用程序。它有一个带有下拉菜单的管理页面,可选择1个月,2个月,3个月,4个月,5个月。
选择其中一个选项,比如2个月,我希望删除Ping表中超过2个月的所有记录。我一直试图在过去2天内完成这项任务,但并未取得成功。谁能帮我这个?提前谢谢。
rails_app
views
pings
_form.html.erb
admin.html.erb
edit.html.erb
index.html.erb
new.html.erb
show.html.erb
show.html.erb
这是ping控制器。
class PingsController < ApplicationController
before_action :set_ping, only: [:show, :edit, :update, :destroy]
# GET /pings
# GET /pings.json
def index
@pings = Ping.all
end
# GET /pings/1
# GET /pings/1.json
def show
end
# GET /pings/new
def new
@ping = Ping.new
end
# GET /pings/1/edit
def edit
end
# POST /pings
# POST /pings.json
def create
@ping = Ping.new(ping_params)
respond_to do |format|
if @ping.save
format.html { redirect_to @ping, notice: 'Ping was successfully created.' }
format.json { render :show, status: :created, location: @ping }
else
format.html { render :new }
format.json { render json: @ping.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /pings/1
# PATCH/PUT /pings/1.json
def update
respond_to do |format|
if @ping.update(ping_params)
format.html { redirect_to @ping, notice: 'Ping was successfully updated.' }
format.json { render :show, status: :ok, location: @ping }
else
format.html { render :edit }
format.json { render json: @ping.errors, status: :unprocessable_entity }
end
end
end
# DELETE /pings/1
# DELETE /pings/1.json
def destroy
@ping.destroy
respond_to do |format|
format.html { redirect_to pings_url, notice: 'Ping was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_ping
@ping = Ping.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def ping_params
params.require(:ping).permit(:response_time, :created_date, :updated_date, :status, :server_id)
end
end
这是观点:
<!--<div class="login-container"> -->
<div class="container">
<div class="row">
<p id="notice"><%= notice %></p>
<div class="col-md-6">
<table class="table ">
<tr >
<td colspan=2><h1>Delete records older than:</h1></td>
</tr>
<tr>
<td align="center"><%= select_tag "duration", options_for_select([['1 month' ,1], ['2 months' ,2], ['3 months' ,3], ['4 months' ,4], ['5 months' ,5]]) %></td>
<td><%= link_to 'Delete', root_path, class: 'btn btn-danger' %></td>
</tr>
</table>
</div>
<div class="col-md-6">
<table class="table ">
<tr >
<td colspan=3><h1>Set Server ping rate</h1></td>
</tr>
<tr>
<td align="center"><%= link_to '5 minutes', root_path, class: 'btn btn-danger' %></td>
<td align="center"><%= link_to '6 Days', root_path, class: 'btn btn-danger' %></td>
<td align="center"><%= link_to '10 Days', root_path, class: 'btn btn-danger' %></td>
</tr>
</table>
</div>
</div>
</div>