Ruby on rails 在RubyonRails 4.2.0中隐藏记录而不是删除记录

我想隐藏对账单的一些记录，而不是完全删除它们，以便在临时隐藏后检索相应的余额

请参考屏幕截图以便更好地理解，如下所示

我将如何进行

index.html.erb

<div class="row">

    <div class="col-md-10 col-md-offset-1">

        <div class="table-responsive myTable">

            <table id = "kola" class="table listing text-center">
                <tr class="tr-head">
                    <td>Date</td>
                    <td>Description</td>
                    <td>Amount</td>
                    <td>Discount</td>
                    <td>Paid</td>
                    <td>Balance</td>
                </tr>

                <tr>
                    <td></td>
                </tr>


                <a href="#" class="toggle-formed" style="float: right;" >Search</a>

                <div id="sample">

                    <%= form_tag xvaziris_path, remote: true, method: :get, class: "form-group", role: "search" do %>
                    <p>
                        <center><%= text_field_tag :search, params[:search], placeholder: "Search for.....", autofocus: true, class: "form-control-search" %>
                            <%= submit_tag "Search", name: nil, class: "btn btn-md btn-primary" %></center>
                        </p>
                        <% end %><br>
                    </div>



                    <%= render @xvaziris %>

                </table>
            </div>
        </div>
    </div>

日期
描述
数量
优惠
支付
平衡

_xvaziri.html.erb

<tr   class="tr-<%= cycle('odd', 'even') %>">

    <td class="col-1"><%= xvaziri.date.strftime('%d/%m/%Y') %></td>
    <td class="col-3"><%= span_with_possibly_red_color xvaziri.description %></td>


    <td class="col-1"><%= number_with_precision(xvaziri.amount, :delimiter => ",", :precision => 2) %></td>

    <td class="col-1 neg"><%= number_with_precision(xvaziri.discount, :delimiter => ",", :precision => 2) %></td>

    <td class="col-1 neg"><%= number_with_precision(xvaziri.paid, :delimiter => ",", :precision => 2) %></td>


    <% @balance += xvaziri.amount.to_f - xvaziri.discount.to_f - xvaziri.paid.to_f %>

    <% color = @balance >= 0 ? "pos" : "neg" %>

    <td class="col-1 <%= color %>"><%= number_with_precision(@balance.abs, :delimiter => ",", :precision => 2) %></td>

</tr>

“，”，：精度=>2）%>
“，”，：精度=>2）%>
“，”，：精度=>2）%>
= 0 ? “pos”：“neg”%>
“，”，：精度=>2）%>

xvaziri.rb

class Xvaziri < ActiveRecord::Base

    def to_s
        description
    end

    def self.import(file)
        CSV.foreach(file.path, headers: true) do |row|
            Xvaziri.create! row.to_hash
        end
    end


    def self.search(search)

        where (["description LIKE ? OR amount LIKE ? OR paid LIKE ?", "%#{search}%","%#{search}%","%#{search}%"]) 

    end

end

类Xvaziri 20151128091020_create_xvaziris.rb

class CreateXvaziris < ActiveRecord::Migration
    def change
        create_table :xvaziris do |t|
            t.date :date
            t.text :description
            t.decimal :amount
            t.decimal :discount
            t.decimal :paid
            t.decimal :balance
            t.timestamps null: false
        end
    end
end

class CreateXvaziris

xvaziris_controller.rb

class XvazirisController < ApplicationController

    before_action :set_xvaziri, only: [:show, :edit, :update, :destroy]

     layout "fedena"


    def index
        @xvaziris = Xvaziri.search(params[:search])


        respond_to do |format|
            format.js
            format.html 
        end 
    end

    def import
        Xvaziri.import(params[:file])
        redirect_to xvaziris_url, notice: "Xvaziris imported."
    end

    def show
    end

    def new
        @xvaziri = Xvaziri.new
    end

    def create
        @xvaziri = Xvaziri.new(xvaziri)
        if
            @xvaziri.save
            flash[:notice] = 'Xvaziri Created'
            redirect_to @xvaziri
        else
            render 'new'
        end
    end

    def edit
    end

    def update
        if @xvaziri.update(xvaziri)
            flash[:notice] = 'Xvaziri Updated'
            redirect_to @xvaziri
        else
            render 'edit'
        end

    end

    def destroy
        @xvaziri.destroy
        flash[:notice] = 'Xvaziri was successfully destroyed.'
        redirect_to xvaziris_url    
    end

    private
    # Use callbacks to share common setup or constraints between actions.
    def set_xvaziri
        @xvaziri = Xvaziri.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def xvaziri
        params.require(:xvaziri).permit(:date, :description, :amount, :discount, :paid)
    end

end

classxvaziriscontroller

欢迎提出任何建议

---

提前谢谢。

您可以引入新的字段

隐藏

，默认情况下该字段为

假

，因此将显示所有现有数据。然后，对于每个要隐藏的记录，将此字段（标志）设置为

true

执行余额方法以包括或排除隐藏记录。

完成此步骤

---

还有一个gem-act-as-paranoid，它也做同样的事情

这里有一个添加隐藏字段的实用帮助：

通过在控制台中键入以下内容添加迁移：

rails g migration AddHiddenToXvaziris hidden:boolean

打开生成的迁移文件并更改以下行：

add_column :xvaziris, :hidden, :boolean, :default => false

保存文件并运行迁移：

rake db:migrate

然后，您必须检查hidden属性是否为false，并且仅当hidden为false时才向

@xvaziris

添加一行。在xvaziris_controller.rb中，只需更改如下索引方法：

def index
    @xvaziris = Xvaziri.find_by hidden: false
    @xvaziris = @xvaziri.search(params[:search])

    respond_to do |format|
        format.js
        format.html 
    end 
end

调用销毁操作时，还必须将隐藏属性设置为true。 在xvaziris_controller.rb中更改销毁方法：

def destroy
    @xvaziri = Xvaziri.find(params[:id])
    @xvaziri.hidden = true
    flash[:notice] = 'Xvaziri was successfully hidden.'
    redirect_to xvaziris_url    
end

---

注意，元素现在并没有被销毁，而是被设置为hidden==true。 如果您希望在其他地方销毁元素，我建议保留销毁方法，并在xvaziris_controller.rb中添加一个新方法：

def hide_xvaziri
    @xvaziri = Xvaziri.find(params[:id])
    @xvaziri.hidden = true
    flash[:notice] = 'Xvaziri was successfully hidden.'
    redirect_to xvaziris_url    
end

进行此操作时，还必须在路线中添加以下行：

如果需要，您可以自定义路线，以满足您的需要

---

要再次显示隐藏的元素，我建议执行以下操作： 将“全部显示”按钮添加到index.html.erb：

在xvaziris_controller.rb中，使用以下方法：

def reset_filter
    xvaziris = Xvaziri.all // or do the search here, depending on what you need
    xvaziris.each do |xvaziri|
        xvaziri.hidden = false
    end
    redirect_to xvaziris_url
end

---

编辑：此答案无效，因为它假定OP希望永久存档记录

使用范围

以常规方式向表中添加一个新字段

已存档

。我想你知道怎么做

不要删除行，而是将

somexvaziri.archived=true

设置为标记不想再显示的记录

在模型中，添加“默认范围”（请参阅）

类Xvazirifalse）} 结束 这将从所有rails查询中删除这些记录（除非您明确告诉rails忽略查询的默认范围）

---

可以添加布尔字段，单击“删除”后，只需将属性更新为true，并在循环中显示false Records感谢回复。我该如何实际操作？感谢回复。我是新手，请你详细解释一下好吗？我只是想不考虑这个问题

<%= link_to "Show all", resetfilter_xvaziri_path %>

get '/xvaziri/resetfilter', to: 'xvaziris#reset_filter'

def reset_filter
    xvaziris = Xvaziri.all // or do the search here, depending on what you need
    xvaziris.each do |xvaziri|
        xvaziri.hidden = false
    end
    redirect_to xvaziris_url
end

class Xvaziri < ActiveRecord::Base
  default_scope { where(:archived => false) }
end