如何在不提交表单的情况下将值传递给Rails模型方法? [英] how to pass a value to rails model method without submit form?

问题描述

我的模型中有一个如下所示的类:

I have a class in my model like the following:

class Project::Area < ActiveRecord::Base
  attr_accessor :cancel_id
  def save_loc_values
    update_record = Project::Loc.find_by_Project_Reference(project.Project_Reference)
    update_record.update_attributes({
      Status: 'D',
      Cancellation_Date: DateTime.now().strftime("%Y-%m-%d %T.%L"),
      CancellationReason_id: self.cancel_id
    })
  end
end

在我的form中，我正在使用attr_accessor字段

In my form, am using the attr_accessor field

<%= form_for @area, remote: true, html: {data: {save_warning_form: true}} do |f| %>
  <%= form_error(f) %>
  <%= f.text_field :cancel_id %>
  <%= link_to 'omit', save_loc_values_project_areas_path(area_id: @area.id, cancel_id: @area.cancel_id), remote: true, method: :post %>
<% end %>

我在controller中创建了一条路线并为我的自定义方法，如下所示，

I created a route and for my custom method in my controller like the following,

def save_loc_values
  @area = Project::Area.find(params[:area_id])
  @return = @area.save_loc_values
end

它的问题运行正常，并将Status和Cancellation_Date的值保存到另一个数据库表中.但是On change cancel_id值没有保存.如何通过并保存onchange cancel_id?

The problem in It is working fine and saving the values of Status and Cancellation_Date into the another database table. But the On change cancel_id value is not saving. How can I pass and save the onchange cancel_id?

谢谢，非常感谢您的帮助.

Thanks and I really would appreciate your help.

推荐答案

您可以执行以下操作:

html :

 <%= link_to_function "ommit", "ommit('#{@ommit.id}')" %>

js :

function ommit(id)
{
  $.ajax({
    url:"/your_controller_name/save_loc_values",
    dataType: "json",
    data: "ommit_id=" + id + "&cancel_id=" + $('#cancel_id').val(),
    type: 'GET/POST'# your method type
  });
}

控制器:

def save_loc_values
  @area = Project::Area.find(params[:area_id])
  @return = @area.save_loc_values(params[:cancel_id])
end

模型:

def save_loc_values(cancel_id)
    update_record = Project::Loc.find_by_Project_Reference(project.Project_Reference)
    update_record.update_attributes({
      Status: 'D',
      Cancellation_Date: DateTime.now().strftime("%Y-%m-%d %T.%L"),
      CancellationReason_id: cancel_id
    })
end

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