Ruby on rails Rails 3.2.13-使用禁用的HTML表单清除会话

我在提交表单时遇到了清除会话散列的问题，无法理解为什么会出现这种情况。情况如下：

我的应用程序中有几个模型，其中一个叫做计划。用户可以查看、编辑、删除或创建计划。当调用除view之外的任何操作时，将显示一个表单，用户可以动态地向计划添加信息，并最终提交表单以在数据库中创建/更新计划。还根据用户的输入生成输出。这部分很好用

使用禁用的表单时会出现此问题。当用户单击以查看现有计划时，将调用显示操作。在视图模式下，表单本质上是只读的，因此我禁用了表单的所有元素，除了提交按钮。最初，表单不是只读的，当它不是只读的时候，我没有任何问题。用户可以查看计划并单击Submit按钮以获得正确的输出

现在，对于禁用的表单，用户可以执行相同的过程，除非很明显表单的信息无法修改。当用户点击同一个提交按钮时，表单将被处理，但输出根本不会被渲染

在进行了大量故障排除之后，我发现由于某种原因正在清除会话哈希，导致某些逻辑无法正常工作。当用户单击以查看计划时，将调用显示操作；当单击提交按钮时，下一步将调用渲染计划操作。对于渲染计划操作，我没有任何前置过滤器。在show操作中，我将会话[：accessType]设置为“查看”。我已经验证了哈希值是否已被设置。现在，当它移动到渲染计划操作时，我已经检查了会话散列，它被完全清除。我似乎不明白为什么，而且已经试了好几个小时了

同样，当表单未被禁用时，一切正常。在以只读模式提交表单时，我不需要表单中的任何信息，因为我使用数据库中存储的所有信息作为计划信息，而不是提交的信息。此外，我还验证了我的代码中没有语法/运行时错误

有人知道为什么要清除会话散列吗？我不会以任何方式把它清除掉。提前感谢您的帮助

---

编辑#1

我的“show”html.erb文件包含以下表单：

<% if session[:accessType] != "Create" %>
    <% provide(:title, @savedPlan.name) %>

    <h1 id="pagetitle"><%= session[:accessType] %>ing: <%= @savedPlan.name %></h1>
<% else %>
    <% provide(:title, 'New Project Plan') %>

    <h1 id="pagetitle">New Project Plan</h1>
<% end %>

<div id="form_errors">
    <ul>
        <li>Please correct the errors below:</li>
        <li>&nbsp;</li>
    </ul>
</div>

<h2 class="sectiontitle">Choose the project mode.</h2>

<%# Sets the correct project mode for the saved project plan %>
<% if !@savedPlan.nil? %>
    <% if @savedPlan.projectMode == "variable" %>
        <% varChecked = 'checked=checked' %>
    <% else %>
        <% fixedChecked = 'checked=checked' %>
    <% end %>
<% else %>
    <% varChecked = 'checked=checked' %>
<% end %>

<label class="radio inline radiolabel">
    <input id="radVar" name="radMode" type="radio" value="Variable" tabindex="1" <%= if !varChecked.nil?; varChecked; end %>
           onclick="OptionChoice();"> 
    Variable
</label>

<label id="lblRadFixed" class="radio inline radiolabel">
    <input id="radFixed" name="radMode" type="radio" value="Fixed" tabindex="2" <%= if !fixedChecked.nil?; fixedChecked; end %>
           onclick="OptionChoice();">
    Fixed
</label>

<div class="variable projectmode">
    <%= form_tag({:controller => 'project_plans', :action => 'render_plan' },
                 { :multipart => true, :id => 'frmvariableplan', :name => 'frmvariableplan', :class => 'form-inline' }) do %>
        <input id="variable_project_mode" name="projectmode" value="variable" type="hidden">

        <div class="row proj-start-end-date-div">
            <div class="span4">
                <%= label_tag :projname, "Project Name", :class => 'project_date_label biglbl biglbl-spacing' %>
                <input class="proj-start-end-date input-spacing" name="projname" type="text" value="<%= if !@savedPlan.nil?; @savedPlan.name; end %>">
            </div>

            <div class="span4">
                <%= label_tag :projstartdate, "Start Date", :class => 'project_date_label biglbl biglbl-spacing' %>
                <input class="proj-start-end-date input-spacing datepicker read_only_input" name="projstartdate" type="text"
                       value="<%= if !@savedPlan.nil?; @savedPlan.startDate.strftime("%m/%d/%Y"); end %>" readonly="true">
            </div>

            <div class="span4">
                <%= label_tag :projenddate, "End Date", :class => 'project_date_label biglbl biglbl-spacing' %>
                <input class="proj-start-end-date" name="projenddate" type="text"
                       value="<%= if !@savedPlan.nil?; @savedPlan.endDate.strftime("%m/%d/%Y"); end %>" readonly="true">
            </div>
        </div>

        <!-- Horizontal Rule to break the page up into sections -->
        <hr />

        <div>
            <!-- Simple service type -->
            <label name="lblServiceType_Simple" class="biglbl servicetypeheading">Service Type: Simple</label>

            <div id="divServiceType_Simple" class="servicetypediv">
                <%= render :partial => 'project_plans/display_services', :locals => { :type_service => 'simple' } %>

                <%= render :partial => 'project_plans/add_service', :locals => { :service_type => 'simple' } %>

                <% if !@savedPlan.nil? %>
                    <% service_array_length = (@all_services_array[0].count - 1) %>                     

                    <script type="text/javascript">
                        <% if (service_array_length >= 0) %>
                            CreateSlider("simple", "Total",   0, 144, <%= @all_services_array[0][0].totalHours %>);
                            CreateSlider("simple", "Design",  0, 64,  <%= @all_services_array[0][0].designHours %>);
                            CreateSlider("simple", "Develop", 0, 80,  <%= @all_services_array[0][0].developHours %>);
                        <% else %>                      
                            CreateSlider("simple", "Total",   0, 144, 144);
                            CreateSlider("simple", "Design",  0, 64,  64);
                            CreateSlider("simple", "Develop", 0, 80,  80);
                        <% end %>
                    </script>

                    <% (0..service_array_length).each do |i| %>
                        <% service = @all_services_array[0][i] %>

                        <%= render(:partial => 'project_plans/new_service',
                                   :locals => { :type_service => 'simple', :type_count => (i + 1),
                                                :service_name => service.name, :start_date => service.startDate.strftime("%m/%d/%Y"),
                                                :end_date => service.endDate.strftime("%m/%d/%Y"),
                                                :design_endDate => service.design_endDate.strftime("%m/%d/%Y"), :priority => service.priority,
                                                :should_display_button => ((i != service_array_length) ? 'false' : 'true') }) %>
                    <% end %>

                    <% session[:simple] = @all_services_array[0].count %>
                <% else %>
                    <script type="text/javascript">
                        CreateSlider("simple", "Total",   0, 144, 144);
                        CreateSlider("simple", "Design",  0, 64,  64);
                        CreateSlider("simple", "Develop", 0, 80,  80);
                    </script>
                <% end %>
            </div>

            <!-- Horizontal Rule to break the page up into sections -->
            <hr />

            <!-- Medium service type -->
            <label name="lblServiceType_Medium" class="biglbl servicetypeheading">Service Type: Medium</label>

            <div id="divServiceType_Medium" class="servicetypediv">
                <%= render :partial => 'project_plans/display_services', :locals => { :type_service => 'medium' } %>

                <%= render :partial => 'project_plans/add_service', :locals => { :service_type => 'medium' } %>

                <% if !@savedPlan.nil? %>
                    <% service_array_length = (@all_services_array[1].count - 1) %>

                    <script type="text/javascript">
                        <% if (service_array_length >= 0) %>
                            CreateSlider("medium", "Total",   145, 220, <%= @all_services_array[1][0].totalHours %>);
                            CreateSlider("medium", "Design",  0,   100, <%= @all_services_array[1][0].designHours %>);
                            CreateSlider("medium", "Develop", 0,   120, <%= @all_services_array[1][0].developHours %>);
                        <% else %>                      
                            CreateSlider("medium", "Total",   145, 220, 220);
                            CreateSlider("medium", "Design",  0,   100, 100);
                            CreateSlider("medium", "Develop", 0,   120, 120);
                        <% end %>
                    </script>

                    <% (0..service_array_length).each do |i| %>
                        <% service = @all_services_array[1][i] %>

                        <%= render(:partial => 'project_plans/new_service',
                                   :locals => { :type_service => 'medium', :type_count => (i + 1),
                                                :service_name => service.name, :start_date => service.startDate.strftime("%m/%d/%Y"),
                                                :end_date => service.endDate.strftime("%m/%d/%Y"),
                                                :design_endDate => service.design_endDate.strftime("%m/%d/%Y"), :priority => service.priority,
                                                :should_display_button => ((i != service_array_length) ? 'false' : 'true') }) %>
                    <% end %>

                    <% session[:medium] = @all_services_array[1].count %>
                <% else %>
                    <script type="text/javascript">
                        CreateSlider("medium", "Total",   145, 220, 220);
                        CreateSlider("medium", "Design",  0,   100, 100);
                        CreateSlider("medium", "Develop", 0,   120, 120);
                    </script>
                <% end %>
            </div>

            <!-- Horizontal Rule to break the page up into sections -->
            <hr />

            <!-- Complex service type -->
            <label name="lblServiceType_Complex" class="biglbl servicetypeheading">Service Type: Complex</label>

            <div id="divServiceType_Complex" class="servicetypediv">
                <%= render :partial => 'project_plans/display_services', :locals => { :type_service => 'complex' } %>

                <%= render :partial => 'project_plans/add_service', :locals => { :service_type => 'complex' } %>

                <% if !@savedPlan.nil? %>
                    <% service_array_length = (@all_services_array[2].count - 1) %>

                    <script type="text/javascript">
                        <% if (service_array_length >= 0) %>
                            CreateSlider("complex", "Total",   221, 295, <%= @all_services_array[2][0].totalHours %>);
                            CreateSlider("complex", "Design",  0,   135, <%= @all_services_array[2][0].designHours %>);
                            CreateSlider("complex", "Develop", 0,   160, <%= @all_services_array[2][0].developHours %>);
                        <% else %>                      
                            CreateSlider("complex", "Total",   221, 295, 295);
                            CreateSlider("complex", "Design",  0,   135, 135);
                            CreateSlider("complex", "Develop", 0,   160, 160);
                        <% end %>
                    </script>

                    <% (0..service_array_length).each do |i| %>
                        <% service = @all_services_array[2][i] %>

                        <%= render(:partial => 'project_plans/new_service',
                                   :locals => { :type_service => 'complex', :type_count => (i + 1),
                                                :service_name => service.name, :start_date => service.startDate.strftime("%m/%d/%Y"),
                                                :end_date => service.endDate.strftime("%m/%d/%Y"),
                                                :design_endDate => service.design_endDate.strftime("%m/%d/%Y"), :priority => service.priority,
                                                :should_display_button => ((i != service_array_length) ? 'false' : 'true') }) %>
                    <% end %>

                    <% session[:complex] = @all_services_array[2].count %>
                <% else %>
                    <script type="text/javascript">
                        CreateSlider("complex", "Total",   221, 295, 295);
                        CreateSlider("complex", "Design",  0,   135, 135);
                        CreateSlider("complex", "Develop", 0,   160, 160);
                    </script>
                <% end %>
            </div>

            <!-- Horizontal Rule to break the page up into sections -->
            <hr />

            <!-- Incremental service type -->
            <label name="lblServiceType_Incremental" class="biglbl servicetypeheading">Service Type: Incremental</label>

            <div id="divServiceType_Incremental" class="servicetypediv">
                <%= render :partial => 'project_plans/display_services', :locals => { :type_service => 'incremental' } %>

                <%= render :partial => 'project_plans/add_service', :locals => { :service_type => 'incremental' } %>

                <% if !@savedPlan.nil? %>
                    <% service_array_length = (@all_services_array[3].count - 1) %>

                    <script type="text/javascript">
                        <% if (service_array_length >= 0) %>
                            CreateSlider("incremental", "Total",   0, 40, <%= @all_services_array[3][0].totalHours %>);
                            CreateSlider("incremental", "Design",  0, 40, <%= @all_services_array[3][0].designHours %>);
                            CreateSlider("incremental", "Develop", 0, 40, <%= @all_services_array[3][0].developHours %>);
                        <% else %>                      
                            CreateSlider("incremental", "Total",   0, 40, 40);
                            CreateSlider("incremental", "Design",  0, 20, 20);
                            CreateSlider("incremental", "Develop", 0, 20, 20);
                        <% end %>
                    </script>

                    <% (0..service_array_length).each do |i| %>
                        <% service = @all_services_array[3][i] %>

                        <%= render(:partial => 'project_plans/new_service',
                                   :locals => { :type_service => 'incremental', :type_count => (i + 1),
                                                :service_name => service.name, :start_date => service.startDate.strftime("%m/%d/%Y"),
                                                :end_date => service.endDate.strftime("%m/%d/%Y"),
                                                :design_endDate => service.design_endDate.strftime("%m/%d/%Y"), :priority => service.priority,
                                                :should_display_button => ((i != service_array_length) ? 'false' : 'true') }) %>
                    <% end %>

                    <% session[:incremental] = @all_services_array[3].count %>
                <% else %>
                    <script type="text/javascript">
                        CreateSlider("incremental", "Total",   0, 40, 40);
                        CreateSlider("incremental", "Design",  0, 20, 20);
                        CreateSlider("incremental", "Develop", 0, 20, 20);
                    </script>
                <% end %>
            </div>
        </div>

        <!-- Horizontal Rule to break the page up into sections -->
        <hr />

        <!-- Resources section -->
        <label name="lblResources" class="biglbl servicetypeheading">Resources</label>

        <div id="resources" class="servicetypediv">
            <%= render :partial => 'project_plans/add_resource' %>

            <% if !@savedPlan.nil? %>
                <% resource_array_length = (@all_resources_array.count - 1) %>

                <% (0..resource_array_length).each do |i| %>
                    <% resource = @all_resources_array[i] %> 

                    <%= render(:partial => 'project_plans/new_resource',
                               :locals => { :type_count => (i + 1), :resource_name => resource.name, :start_date => resource.startDate.strftime("%m/%d/%Y"),
                                            :end_date => resource.endDate.strftime("%m/%d/%Y"), :resource_type => resource.resourceType,
                                            :should_display_button => ((i != resource_array_length) ? 'false' : 'true') }) %>
                <% end %>

                <% session[:rescount] = @all_resources_array.count %>
            <% end %>
        </div>

        <!-- Horizontal Rule to break the page up into sections -->
        <hr />

        <div>
            <p class="biglbl">Notes:</p>

            <textarea class="span6 textarea-spacing" name="txtNotes" rows="5"
                      placeholder="Enter any notes here"><%= if !@savedPlan.nil?; @savedPlan.notes; end %></textarea>

            <input class="btn btn-primary btn-project-plan" value="<%= session[:accessType] %> Project Plan" type="button"
                   onclick="ValidateForm($('#frmvariableplan'))">
        </div>

        <div class="clearfix"></div>
    <% end %>
</div>

<div class="fixed projectmode">
    <%= form_tag({:controller => 'project_plans', :action => 'render_plan' },
                 { :multipart => true, :id => 'frmfixedplan', :name => 'frmfixedplan', :class => 'form-inline' }) do %>
        <input id="fixed_project_mode" name="projectmode" value="fixed" type="hidden">

        <div class="row proj-start-end-date-div">
            <div class="span4">
                <%= label_tag :projname, "Project Name", :class => 'project_date_label biglbl biglbl-spacing' %>
                <input class="proj-start-end-date input-spacing" name="projname" type="text">
            </div>

            <div class="span4">
                <%= label_tag :projstartdate, "Start Date", :class => 'project_date_label biglbl biglbl-spacing' %>
                <input class="proj-start-end-date input-spacing datepicker read_only_input" name="projstartdate" type="text" readonly="true">
            </div>

            <div class="span4">
                <%= label_tag :projenddate, "End Date", :class => 'project_date_label biglbl biglbl-spacing' %>
                <input class="proj-start-end-date" name="projenddate" type="text" readonly="true">
            </div>
        </div>
    <% end %>
</div>

<% if session[:accessType] == "View" %>
    <script type="text/javascript">
        disableForm($('#frmvariableplan'));
    </script>
<% end %>

---

成功了

在您担心会话散列被清除之前，您是否有很好的理由在show view中使用表单？你可以用其他方式更容易地显示这些信息——你能把你正在谈论的节目文件放到你的问题中吗

谢谢你的回复，达斯。我在show view中使用表单是因为它为用户提供了与他/她所使用的相同的界面。表单还向服务器发送与其他模式（创建、编辑）相同的请求。我需要发送此请求以获取表单的输出。但是，您确实有一点，即信息可以更容易地显示。我已将该节目文件作为我的问题的编辑。很高兴你找到了答案！

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