[英]Hide records rather than delete them in ruby on rails 4.2.0
我想隐藏声明的一些记录,而不是完全删除它们,以便在临时隐藏后检索相应的余额。
请参阅屏幕截图以获得更好的理解,如下所示;
我该怎么办?
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>
_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>
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
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
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
任何建议都是最受欢迎的。
先感谢您。
编辑:此答案无效,因为它假定OP想要永久存档记录。
archived
到您的表的新字段。 我猜你知道怎么做。 some_xvaziri.archived=true
来标记您不想再显示的记录。 在您的模型中,添加“默认范围”(请参阅http://apidock.com/rails/ActiveRecord/Base/default_scope/class )
class Xvaziri < ActiveRecord::Base default_scope { where(:archived => false) } end
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)。
这是添加隐藏字段的实用帮助:
在控制台中输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
然后你必须检查hidden-attribute是否为false,并且只有在hidden为false时才向@xvaziris
添加一行。 在xvaziris_controller.rb中,只需更改索引方法,如下所示:
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destroy操作时,还必须将hidden属性设置为true。 在你的xvaziris_controller.rb中更改destroy方法:
def destroy
@xvaziri = Xvaziri.find(params[:id])
@xvaziri.hidden = true
flash[:notice] = 'Xvaziri was successfully hidden.'
redirect_to xvaziris_url
end
请注意,元素现在不会被销毁,但设置为hidden == true。 如果你想在其他地方销毁元素,我建议保留destroy方法,并在你的 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
执行此操作时,您还必须在路线中添加以下行:
get '/xvaziri/:id/hide', to: 'xvaziris#hide_xvaziri'
您可以根据需要自定义路线以满足您的需求。
要再次显示隐藏的元素,我建议您执行以下操作:在index.html.erb中添加“全部显示”-Button:
<%= link_to "Show all", resetfilter_xvaziri_path %>
然后你必须添加routes.rb这一行:
get '/xvaziri/resetfilter', to: 'xvaziris#reset_filter'
在此方法的xvaziris_controller.rb中:
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
您可以引入hidden
新字段,默认为false
,因此将显示所有现有数据。 然后,对于要隐藏的每个记录,将此字段(标志)设置为true
。
实施平衡方法以包含或排除隐藏记录。
浏览此链接
此外,还有这种宝石作为偏执狂做同样的事情
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