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我以 HTML 表格的形式显示来自 db 的所有记录以及编辑按钮。打开,单击编辑按钮,它重定向到编辑视图,该视图将显示附加列。

在这里,我在编辑表单中显示了所有行/记录的保存按钮。有没有办法防止这样我可以只显示我以索引形式选择的那个。

此外,更新字段后,如何保存记录并重定向到索引视图。

请在下面找到代码片段:

metrics_controller.rb:

class MetricsController < ApplicationController
  def index
    @metricAll = Metric.all
  end

  def show
    @metric = Metric.find(params[:id])
  end

  def edit
    @metric = Metric.find(params[:id])
    @metricAll = Metric.all
  end

  def create
    @metric = Metric.new(post_params)
    if(@metric.save)
      redirect_to @metric
    else
      render 'new'
    end
  end

  def update
    @metric = Metric.find(params[:id])
    if(@metric.update_attributes(post_params))
      redirect_to @metric
    else
      render 'edit'
    end
  end

  private def post_params
    params.require(:metric).permit(:Metric, :WI, :Value, :UT, :Score, :IsValid, :UserName, :Comments)
  end
end

编辑.html.rb:

<%= form_for :metrics_controller, url: metric_path(@metric), method: :patch do |f| %>
  <table id="metrics">
    <thead>
    <tr id="AllMetricColumnNames">
      <th id="Metric"><div>Metric</th>
      <th id="WI">WI</th>
      <th id="Value">Value</th>
      <th id="UT">UT</th>
      <th id="Score">Score</th>
      <th id="IsValid">IsValid</th>
      <th id="UserName">UserName</th>
      <th id="Comments">Comments</th>
      <th id="EditColumn">Edit</th>
    </tr>
    </thead>
    <% @metricAll.each do |data| %>
      <tr id="AllMetricValues">
        <td id="Value"><%= data.Metric %></td>
        <td id="WI"><%= data.WI %></td>
        <td id="Value"><%= data.Value %></td>
        <td id="UT"><%= data.UT %></td>
        <td id="Score"><%= data.Score %></td>
        <td><%= f.select :IsValid, options_for_select(['True', 'False']), :include_blank => true, :class => 'chosen-select', :required => true, value: data.IsValid  %></td>
        <td id="UserName"><%= data.UserName %></td>
        <td id="Comments"><%= f.text_field :Comments, value: data.Comments %></td>
        <td id="SaveButton"><%= f.submit "Save" %></td>
    <% end %>
    </tr>
  </table>
<% end %>

截屏: 在此处输入图像描述

4

1 回答 1

1

您需要form为每个metric

<table id="metrics">
  <thead>
  <tr id="AllMetricColumnNames">
    <th id="Metric"><div>Metric</th>
    <th id="WI">WI</th>
    <th id="Value">Value</th>
    <th id="UT">UT</th>
    <th id="Score">Score</th>
    <th id="IsValid">IsValid</th>
    <th id="UserName">UserName</th>
    <th id="Comments">Comments</th>
    <th id="EditColumn">Edit</th>
  </tr>
  </thead>
  <% @metricAll.each do |data| %>
    <%= form_for :metrics_controller, url: metric_path(data), method: :patch do |f| %>
      <tr id="AllMetricValues">
        <td id="Value"><%= data.Metric %></td>
        <td id="WI"><%= data.WI %></td>
        <td id="Value"><%= data.Value %></td>
        <td id="UT"><%= data.UT %></td>
        <td id="Score"><%= data.Score %></td>
        <td><%= f.select :IsValid, options_for_select(['True', 'False']), :include_blank => true, :class => 'chosen-select', :required => true, value: data.IsValid  %></td>
        <td id="UserName"><%= data.UserName %></td>
        <td id="Comments"><%= f.text_field :Comments, value: data.Comments %></td>
        <td id="SaveButton"><%= f.submit "Save" %></td>
      </tr>
    <% end %>
  <% end %>
</table>
于 2018-11-13T19:27:01.857 回答