Question

我正在尝试计算输出列，它是两个的差异查询输出中的其他列;第一列是聚合的库存中的物品，而第二列是物品的集合被用过。第三列应该是差异的两个值，这样我就可以输出表中的所有三列。

我想知道以铁路方式进行采购和销售后的剩余库存。

请在下面的屏幕截图中找到参考资料;

对于购买表，

stockings_controller.rb

class StockingsController < ApplicationController
    before_action :set_stocking, only: [:show, :edit, :update, :destroy]

  # GET /Stockings
  # GET /deldetails.json
  def index
    @stockings = Stocking.all
  end

  def import
    Stocking.import(params[:file])
    redirect_to stockings_url, notice: "Stockings imported."
  end

  # GET /Stockings/1
  # GET /Stockings/1.json
  def show
  end

  # GET /Stockings/new
  def new
    @stocking = Stocking.new
  end

  # GET /stockings/1/edit
  def edit
  end

  # POST /Stockings
  # POST /Stockings.json
  def create
    @stocking = Stocking.new(stocking_params)

    respond_to do |format|
      if @stocking.save
        format.html { redirect_to @stocking, notice: 'Stocking was successfully created.' }
        format.json { render :show, status: :created, location: @stocking }
      else
        format.html { render :new }
        format.json { render json: @stocking.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /Stockings/1
  # PATCH/PUT /stockings/1.json
  def update
    respond_to do |format|
      if @stocking.update(stocking_params)
        format.html { redirect_to @stocking, notice: 'Stocking was successfully updated.' }
        format.json { render :show, status: :ok, location: @stocking }
      else
        format.html { render :edit }
        format.json { render json: @stocking.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /stockings/1
  # DELETE /stockings/1.json
  def destroy
    @stocking.destroy
    respond_to do |format|
      format.html { redirect_to stockings_url, notice: 'Stocking was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

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

    # Never trust parameters from the scary internet, only allow the white list through.
    def stocking_params
      params.require(:stocking).permit(:slno, :category, :articleno, :description, :color, :quantity, :rprice, :total, :cartonno )
    end
  end

stocking.rb

类库存＆lt;的ActiveRecord ::基

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

端

index.html.erb

<div class="row">

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

        <div class="table-responsive myTable">

            <table class="table listing text-center">
                <tr class="tr-head">
                    <td>SLNO</td>
                    <td>CATEGORY</td>
                    <td>ARTICLE NO</td>
                    <td>DESCRIPTION</td>
                    <td>COLOR</td>
                    <td>QUANTITY</td>
                    <td>RETAIL PRICE</td>
                    <td>TOTAL</td>
                    <td>CARTON NO</td>
                </tr>

                <% @stockings.each do |stocking| %>
                <tr class="tr-<%= cycle('odd', 'even') %>">

                    <td class="col-1">
                        <%= stocking.slno %>
                    </td><td class="col-1">
                    <%= stocking.articleno %>
                </td><td class="col-1">
                <%= stocking.category %>
            </td><td class="col-1">
            <%= stocking.description %>
        </td><td class="col-1">
        <%= stocking.color %>
    </td><td class="col-1">
    <%= stocking.quantity %>
</td><td class="col-1">
<%= stocking.rprice %>
</td><td class="col-1">
<%= stocking.total %>
</td><td class="col-1">
<%= stocking.cartonno %>
</td>
</tr>
<% end %>

</table>

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

<br>

<%= link_to 'New stocking', new_stocking_path %>


<!--           |=== HERE  -->
<a href="#" class="toggle-form">...</a>

<div id="test">
    <h2>Import StOCKS</h2>
    <%= form_tag import_stockings_path, multipart: true do %>
    <%= file_field_tag :file %>
    <%= submit_tag "Import" %>
    <% end %>
</div>


<script language="javascript" type="text/javascript">
$(document).ready(function() {
    $("div#test").hide();

    //    | === HERE
    $("a.toggle-form").click(function(event) {
        event.preventDefault();
        $("div#test").toggle();
    });
});
</script>

我已按上述方式准备购买的桌子，但无法解决处理剩余库存的想法。

我很困惑，我需要为销售等创建相同的东西或者我选择其他方式。

欢迎任何建议。

提前谢谢。

Answer 1

我通过以下方式找到剩余库存，剩余库存=购买数量 - 销售数量给客户，指定为cus1，cus2等等，因此我的索引视图如下;

index.html.erb

<td class="col-2"><%= stock = stock.quantity - stock.cus1 - stock.cus2 %></td>

通过这种方式，我获得了实际的剩余库存。

铁路应用中的库存余额维护

1 个答案: