我用Ajax Rails表单后未显示验证错误

时间:2019-09-26 18:26:58

标签: javascript jquery ruby-on-rails ajax ruby-on-rails-6

我正在使用ajax-rails呈现我的表单,并且验证停止工作。当我单击以提交应进行验证的空白时,验证不会生效,并且后端日志显示其张贴了空白表格。如果我不使用ajax,它将正常工作。我不知道我在想什么。

模型

class ClockEntry < ApplicationRecord
  belongs_to :user

  validates :purpose, presence: true # I validated the attribute
end

index.html.erb

<div class="container" id="new-clock-entry">
  <%= link_to 'New Clock Entry', new_clock_entry_path, remote: true, class: 'btn btn-primary btn-sm' %>
</div>

_form.html.erb

<%= simple_form_for clock_entry, remote: true do |f| %>
  <%= f.error_notification %>
  <%= f.error_notification message: f.object.errors[:base].to_sentence if f.object.errors[:base].present? %>

  <div class="form-inputs">
    <%= f.input :purpose %>
  </div>

  <div class="form-actions">
    <%= f.button :submit, class: 'btn btn-primary btn-block btn-lg' %>
  </div>
<% end %>

new.html.erb

<h1>New Clock Entry</h1>

<%= render 'form', clock_entry: @clock_entry %>

<%= link_to 'Back', clock_entries_path %>

new.js.erb

$('#new-clock-entry a').hide().parent().append("<%= j render 'form', clock_entry: @clock_entry %>")

create.js.erb

$('#new-clock-entry form').remove();
$('#new-clock-entry a').show();
$('table#clock-entry tbody').append("<%= j render @clock_entry %>");

控制器

def new
  @clock_entry = ClockEntry.new
end

def create
    @clock_entry = current_user.clock_entries.new(clock_entry_params)
    @clock_entry.set_time_in

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

1 个答案:

答案 0 :(得分:0)

评论部分中的

@arieljuod对我解决此问题非常有帮助。正如他首先提到的,我不是在create方法的format to respond to js条件下询问我的else。这就是我所做的:

控制器创建操作

将以下行添加到创建动作的else条件中:

  

format.js {render:new}

所以我的控制器动作变为:

def create
    @clock_entry = current_user.clock_entries.new(clock_entry_params)
    @clock_entry.set_time_in

    respond_to do |format|
      if @clock_entry.save
        format.html { redirect_to @clock_entry, notice: 'Clock entry was successfully created.' }
        format.js { redirect_to root_path, notice: 'Clock entry was successfully created.' }
        format.json { render :show, status: :created, location: @clock_entry }
      else
        format.js { render :new } # Added this...
        format.html { render :new }
        format.json { render json: @clock_entry.errors, status: :unprocessable_entity }
      end
    end
  end

new.js.erb文件

然后在new.js.erb文件中,呈现:new表单后,您需要删除或隐藏已经存在的内容,并附加一个包含错误消息的新表单。因此,我必须通过在form tag to be hidden中提供new.js.erb来删除整个表单。因此,我将以下这一行添加到我的new.js.erb文件中:

  

$('#new-clock-entry form')。hide()。parent()。append(“ <%= j render'form',clock_entry:@clock_entry%>”)

因此,新的new.js.erb文件现在变为:

$('#new-clock-entry a').hide().parent().append("<%= j render 'form', clock_entry: @clock_entry %>")
$('#new-clock-entry form').hide().parent().append("<%= j render 'form', clock_entry: @clock_entry %>")

我认为这对于遇到相同问题的任何人都应该很方便。