Rails 3.如何根据发票的订单项和订单项名称建立表格有所不同？

Question

我已经打破了我近两天的头，我找不到解决方案。

我有一张表列出了发票号码，总金额，支付金额和余额的发票;它运作良好。现在我必须将所有订单项添加到表格中。

发票表有列：of_lax，air_rate_customer，pss，所以这部分很容易，我只需要检查是否有值。

棘手的部分是为fcl_variable_cost_1_amount属性，我得到的那些8（fcl_variable_cost_1_amount，fcl_variable_cost_2_amount等）。

fcl_variable_cost_1_amount有一个相应的fcl_variable_cost_1_charge_id链接到收费表。

因此，在一张发票中，fcl_variable_cost_1_id可能是34并且金额为100美元（ID 34对应于“ISF”）。

在另一张发票中，fcl_variable_cost_1_id可能是12并且金额为50美元（ID 12对应于“考试费用”）。

那么如何让变量名行项出现在他们应该的列中呢？

这是我的代码。还有一个截图。

<% headings = Hash.new %> 
<% @shipments.each do |shipment| %> 
<% unless shipment.invoice.nil? %> 
    <% unless shipment.invoice.of_customer_amount_for_customer_inv.nil? %> 
    <% headings['of_customer_amount_for_customer_inv'] = "Ocean Freight (FCL)" %> 
    <% end %> 
    <% unless shipment.invoice.of_lax.nil? %> 
    <% headings['of_lax'] = "Ocean Freight (LCL)" %> 
    <% end %> 
    <% unless shipment.invoice.air_rate_customer.nil? %> 
    <% headings['air_rate_customer'] = "Air Freight" %> 
    <% end %> 
    <% unless shipment.invoice.pss.nil? %> 
    <% headings['pss'] = "PSS" %> 
    <% end %> 
    <% unless shipment.invoice.hc_lax.nil? %> 
    <% headings['hc_lax'] = "HC LAX" %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_1_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_1_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_1_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_2_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_2_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_2_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_3_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_3_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_3_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_4_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_4_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_4_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_5_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_5_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_5_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_6_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_6_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_6_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_7_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_7_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_7_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_8_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_8_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_8_charge_id).name %> 
    <% end %> 
<% end %> 
<% end %> 

<table> 
    <tr> 
    <th colspan="9">Customer AR Statement for <%= @customer.company_name %></th> 
    </tr> 
    <tr> 
    <th style="text-align:center;">MTY</th> 
    <th>Shipper</th> 
    <th>HBL</th> 
    <th>Container</th> 
    <th>Status</th> 
    <th>Age</th> 
    <th>Delivered Customer</th> 
    <th>Invoice Date</th> 
    <% headings.each_pair do |k,v|%> 
     <th><%= v %></th> 
    <% end %> 
    <th>Invoice Total</th> 
    <th>Amount Paid</th> 
    <th>Balance</th> 
    </tr> 

<% @shipments.each do |shipment| %> 
    <tr> 
    <td style="text-align:center;"><%= shipment.file_number %></td> 
    <td><%= shipment.shipper.company_name %></td> 
    <td><%= shipment.hbl %></td> 
    <td><%= shipment.container %></td> 
    <td><%= shipment.status %></td> 
    <td><%= shipment.age %></td> 
    <td><%= shipment.invoice.delivered_customer ? "Yes" : "No" %></td> 
    <td><%= shipment.invoice.read_issued_at unless shipment.invoice.nil? %></td> 
    <% if shipment.invoice.nil? %> 
     <td colspan="<%= headings.count %>"></td> 
    <% else %> 
     <% headings.each_pair do |k,v| %>   
     <% if k == "of_lax" and !shipment.invoice.of_lax.nil? %> 
      <td><%= number_to_currency shipment.invoice.lcl_of_customer_total %> 
     <% elsif k == "of_customer_amount_for_customer_inv" and !shipment.invoice.of_customer_amount_for_customer_inv.nil? %> 
      <td><%= number_to_currency shipment.invoice.of_customer_amount_for_customer_inv %></td> 
     <% elsif k == "air_rate_customer" and !shipment.invoice.air_rate_customer.nil? %> 
      <td><%= number_to_currency (shipment.volweight * shipment.invoice.air_rate_customer.to_s.to_d) %></td> 
     <% elsif k == "pss" and !shipment.invoice.pss.nil? %> 
      <td><%= number_to_currency (shipment.invoice.pss.to_s.to_d * shipment.volweight) %></td> 
     <% elsif k == "hc_lax" and !shipment.invoice.hc_lax.nil? %> 
      <td><%= number_to_currency (shipment.invoice.hc_lax.to_s.to_d * shipment.volweight) %></td> 
     <% else %> 
      <td></td> 
     <% end %> 

    <% end %> 
    <% end %> 
    <td style="text-align:right;"><%= number_to_currency shipment.invoice.customer_total unless shipment.invoice.nil? %></td> 
    <td style="text-align:right;"><%= number_to_currency shipment.invoice.customer_amount_paid unless shipment.invoice.nil? %></td> 
    <td style="text-align:right;"><%= number_to_currency shipment.invoice.customer_open_balance unless shipment.invoice.nil? %></td> 
    </tr> 
<% end %> 
    <tr> 
    <td colspan="<%= 7 + (headings.count) %>"></td> 
    <th>Totals</th> 
    <td style="text-align:right;"><%= number_to_currency @totals[:overall] %></td> 
    <td style="text-align:right;"><%= number_to_currency @totals[:paid] %></td> 
    <td style="text-align:right;"><%= number_to_currency @totals[:balance] %></td> 
    </tr> 
</table> 

Answer 1

对于万一有人备查运行到类似的任务

<% headings = Hash.new %> 
<% @shipments.each do |shipment| %> 
<% unless shipment.invoice.nil? %> 
    <% unless shipment.invoice.of_customer_amount_for_customer_inv.nil? %> 
    <% headings['of_customer_amount_for_customer_inv'] = "Ocean Freight (FCL)" %> 
    <% end %> 
    <% unless shipment.invoice.of_lax.nil? %> 
    <% headings['of_lax'] = "Ocean Freight (LCL)" %> 
    <% end %> 
    <% unless shipment.invoice.air_rate_customer.nil? %> 
    <% headings['air_rate_customer'] = "Air Freight" %> 
    <% end %> 
    <% unless shipment.invoice.pss.nil? %> 
    <% headings['pss'] = "PSS" %> 
    <% end %> 
    <% unless shipment.invoice.hc_lax.nil? %> 
    <% headings['hc_lax'] = "HC LAX" %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_1_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_1_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_1_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_2_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_2_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_2_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_3_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_3_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_3_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_4_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_4_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_4_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_5_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_5_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_5_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_6_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_6_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_6_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_7_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_7_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_7_charge_id).name %> 
    <% end %> 
    <% unless shipment.invoice.fcl_variable_cost_8_amount.nil? %> 
    <% headings[(Charge.find(shipment.invoice.fcl_variable_cost_8_charge_id)).name] = Charge.find(shipment.invoice.fcl_variable_cost_8_charge_id).name %> 
    <% end %> 
<% end %> 
<% end %> 

<table> 
    <tr> 
    <th colspan="9">Customer AR Statement for <%= @customer.company_name %></th> 
    </tr> 
    <tr> 
    <th style="text-align:center;">MTY</th> 
    <th>Shipper</th> 
    <th>HBL</th> 
    <th>Container</th> 
    <th>Status</th> 
    <th>Age</th> 
    <th>Delivered Customer</th> 
    <th>Invoice Date</th> 
    <% headings.each_pair do |k,v|%> 
     <th><%= v %></th> 
    <% end %> 
    <th>Invoice Total</th> 
    <th>Amount Paid</th> 
    <th>Balance</th> 
    </tr> 

<% @shipments.each do |shipment| %> 
    <tr> 
    <td style="text-align:center;"><%= shipment.file_number %></td> 
    <td><%= shipment.shipper.company_name %></td> 
    <td><%= shipment.hbl %></td> 
    <td><%= shipment.container %></td> 
    <td><%= shipment.status %></td> 
    <td><%= shipment.age %></td> 
    <td><%= shipment.invoice.delivered_customer ? "Yes" : "No" %></td> 
    <td><%= shipment.invoice.read_issued_at unless shipment.invoice.nil? %></td> 
    <% if shipment.invoice.nil? %> 
     <td colspan="<%= headings.count %>"></td> 
    <% else %> 

     <% headings.each_pair do |k,v| %>   
     <% if k == "of_lax" and !shipment.invoice.of_lax.nil? %> 
      <td><%= number_to_currency shipment.invoice.lcl_of_customer_total %> 
     <% elsif k == "of_customer_amount_for_customer_inv" and !shipment.invoice.of_customer_amount_for_customer_inv.nil? %> 
      <td><%= number_to_currency shipment.invoice.of_customer_amount_for_customer_inv %></td> 
     <% elsif k == "air_rate_customer" and !shipment.invoice.air_rate_customer.nil? %> 
      <td><%= number_to_currency (shipment.volweight * shipment.invoice.air_rate_customer.to_s.to_d) %></td> 
     <% elsif k == "pss" and !shipment.invoice.pss.nil? %> 
      <td><%= number_to_currency (shipment.invoice.pss.to_s.to_d * shipment.volweight) %></td> 
     <% elsif k == "hc_lax" and !shipment.invoice.hc_lax.nil? %> 
      <td><%= number_to_currency (shipment.invoice.hc_lax.to_s.to_d * shipment.volweight) %></td> 
     <% else %> 
      <td> 
       <% unless shipment.invoice.fcl_variable_cost_1_amount.nil? %> 
       <% if Charge.find(shipment.invoice.fcl_variable_cost_1_charge_id).name == v %> 
        <%= number_to_currency shipment.invoice.fcl_variable_cost_1_amount %> 
       <% end %> 
       <% end %> 
       <% unless shipment.invoice.fcl_variable_cost_2_amount.nil? %> 
       <% if Charge.find(shipment.invoice.fcl_variable_cost_2_charge_id).name == v %> 
        <%= number_to_currency shipment.invoice.fcl_variable_cost_2_amount %> 
       <% end %> 
       <% end %> 
       <% unless shipment.invoice.fcl_variable_cost_3_amount.nil? %> 
       <% if Charge.find(shipment.invoice.fcl_variable_cost_3_charge_id).name == v %> 
        <%= number_to_currency shipment.invoice.fcl_variable_cost_3_amount %> 
       <% end %> 
       <% end %> 
       <% unless shipment.invoice.fcl_variable_cost_4_amount.nil? %> 
       <% if Charge.find(shipment.invoice.fcl_variable_cost_4_charge_id).name == v %> 
        <%= number_to_currency shipment.invoice.fcl_variable_cost_4_amount %> 
       <% end %> 
       <% end %> 
       <% unless shipment.invoice.fcl_variable_cost_5_amount.nil? %> 
       <% if Charge.find(shipment.invoice.fcl_variable_cost_5_charge_id).name == v %> 
        <%= number_to_currency shipment.invoice.fcl_variable_cost_5_amount %> 
       <% end %> 
       <% end %> 
       <% unless shipment.invoice.fcl_variable_cost_6_amount.nil? %> 
       <% if Charge.find(shipment.invoice.fcl_variable_cost_6_charge_id).name == v %> 
        <%= number_to_currency shipment.invoice.fcl_variable_cost_6_amount %> 
       <% end %> 
       <% end %> 
       <% unless shipment.invoice.fcl_variable_cost_7_amount.nil? %> 
       <% if Charge.find(shipment.invoice.fcl_variable_cost_7_charge_id).name == v %> 
        <%= number_to_currency shipment.invoice.fcl_variable_cost_7_amount %> 
       <% end %> 
       <% end %> 
       <% unless shipment.invoice.fcl_variable_cost_8_amount.nil? %> 
       <% if Charge.find(shipment.invoice.fcl_variable_cost_8_charge_id).name == v %> 
        <%= number_to_currency shipment.invoice.fcl_variable_cost_8_amount %> 
       <% end %> 
       <% end %> 
      </td> 
     <% end %> 

    <% end %> 
    <% end %> 
    <td style="text-align:right;"><%= number_to_currency shipment.invoice.customer_total unless shipment.invoice.nil? %></td> 
    <td style="text-align:right;"><%= number_to_currency shipment.invoice.customer_amount_paid unless shipment.invoice.nil? %></td> 
    <td style="text-align:right;"><%= number_to_currency shipment.invoice.customer_open_balance unless shipment.invoice.nil? %></td> 
    </tr> 
<% end %> 
    <tr> 
    <td colspan="<%= 7 + (headings.count) %>"></td> 
    <th>Totals</th> 
    <td style="text-align:right;"><%= number_to_currency @totals[:overall] %></td> 
    <td style="text-align:right;"><%= number_to_currency @totals[:paid] %></td> 
    <td style="text-align:right;"><%= number_to_currency @totals[:balance] %></td> 
    </tr> 
</table>