用 rails 解决查询 sql

Question

我需要在创建 Historic 时执行此操作：

Table historic
id authorization_origin_id
1   2
2   3

你在下面的图片中看到的是什么

这是我的new.html.erb

<%= simple_form_for(@refinancing) do |f| %>
  <div class="form-inputs">
    <%= f.hidden_field :employee_id, value: @employee.first.id %>
    <%= f.input :contract_number %>
  </div>

  <h3>Reserved value</h3>
  <table class="table table-condensed table-bordered table-striped">
    <thead>
      <th>Authorization id</th>
      <th>Contract number</th>
    </thead>
    <% @authorizations.each do |authorization| %>
      <tbody>
        <tr>
          <td><%= authorization.id %></td>
          <td><%= authorization.contract_number %></td>
        </tr>
      </tbody>
    <% end %>
  </table>

  <div class="form-actions">
    <%= f.button :submit, "To Reserve" %>
  </div>
<% end %>

这是我的控制器：

def new
    if params[:authorization].present?
      @selected_ids = params[:authorization][:contract_number]
      @authorizations = Authorization.where("contract_number in (?)", @selected_ids)
      auth_params = params[:authorization]
      auth_params[:contract_number].zip(auth_params[:value_solve].reject(&:blank?)).each do |contract_number, value_solve|
          Authorization.where(contract_number: contract_number).update_all(value_solve: value_solve, situation: 2)
      end

      @authorizations.ids.each do |auth_id|
        @historic_refinancing = HistoricRefinancing.create
        @historic_refinancing = HistoricRefinancing.where(authorization_origin_id: auth_id).update_all(authorization_origin_id: auth_id)
      end

    end

    @employee = Employee.search_cpf(params[:search_employee_by_cpf])
    @refinancing = Refinancing.new

  end

暂时出现这个错误：

authorization_origin_id有空值，请问这个是怎么得到的？

Answer 1

在您的控制器中，您创建的 HistoricRefinancing 没有任何参数。

HistoricRefinancing.create 创建一个空条目 authorization_origin_id、refinancing_id 和 authorization_new_id.

下面的代码什么都不做，它试图用 authorization_origin_id == auth_id 找到 HistoricRefinancings，然后将该字段更新为相同的 auth_id 值。

@historic_refinancing = HistoricRefinancing.where(authorization_origin_id: auth_id).update_all(authorization_origin_id: auth_id)

不清楚你想在控制器的那部分做什么，但我怀疑你想将这两行压缩到 HistoricRefinancing.create(authorization_origin_id: auth_id)

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