小编Jas*_*ine的帖子

我正在尝试通过产品表单更新product_suppliers.该表单显示供应商表中的所有供应商,但不更新连接表.不确定错误在哪里.索引和节目显示正确的详细信息,但编辑不更新连接表.开始在这个圈子四处走动.

更新:将表格更改为下面让我接近.但仍然没有更新连接表.但是,如果我手动将行添加到连接表,则删除按预期工作.它们显示并可以删除.保存会将新的product_id添加到行中,而不是关联的supply_company_id值.我认为它是一个属性问题,但我无法看到它.

应用程序/模型/ product.rb

 class Product < ActiveRecord::Base
   ### shortned for clarity
  has_many :product_suppliers, :foreign_key => 'product_id'
  has_many :supply_companies, :through => :product_suppliers
  accepts_nested_attributes_for :product_suppliers, :allow_destroy => true
 end

应用程序/模型/ supply_company.rb

 class SupplyCompany < ActiveRecord::Base
  has_many :products, :through => :product_suppliers
  has_many :product_suppliers, :foreign_key => 'supply_company_id'
 end

应用程序/模型/ product_supplier.rb

class ProductSupplier < ActiveRecord::Base
 belongs_to :product
 belongs_to :supply_company
 accepts_nested_attributes_for :product
 accepts_nested_attributes_for :supply_company
end

/app/admin/product.rb

ActiveAdmin.register Product do

  # See permitted parameters documentation:
  # https://github.com/activeadmin/activeadmin/blob/master/docs/2-resource-customization.md#setting-up-strong-parameters
  #
   permit_params :id, :product_name, :product_description, :product_type_id, :product_category_id, :product_colour_id, …

我已经清理了我的代码,以便将以下内容作为我的表单.但是我无法从新的update.php发送数据和更新.该表单可以正常检索数据并显示它.但是在提交时我收到了ok更新消息但是数据库中的记录没有改变任何想法.的index.php

<?php
  include 'connectdb.php';
  // include 'query.php';

  $sql = "SELECT id, WeightorMeasure FROM weightsmeasures";
  $result = $conn->query($sql)       
  if ($result->num_rows > 0) {

    // output data of each row
    while($row = $result->fetch_assoc()) {
    echo "<form action=\"update.php\"method=\"post\">";
    echo "<input type=\"text\" name=\"id\" value = ".$row["id"].">";
    echo "<input type=\"text\" name=\"WeightorMeasure\" value = ".$row["WeightorMeasure"] .">";
    echo "<input type=\"submit\" value=\" Submit \" name=\"Update\">";
    }
        echo "</form>";
    } else {
        echo "0 results";
    }  
       $conn->close();
?>

update.php

<?php
  include 'connectdb.php';
  $wm = $_POST['id'];
  $id = $_POST['WeightorMeasure'];
  $sql …