dedecms二次开发 多类别型选择
dedecms二次开发 多种类型选择
修改dedecms时，用户要求是添加商品使用场合时，可以有选择多个使用地点。即可以多选使用地。
请问数据库怎么修改？怎么保存多列选择的结果，传值怎么传好？
各位大神照顾下。
------解决方案--------------------
按照数据库范式, 1:n 需要一个单独的表, 一行代表一个选择关系, 一个用户选择多个, 那么对应多行, 至少需要为（用户+选择）建立唯一索引（也可以做为primary key）， 根据需要可以增加自增列作为primary key。
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
What does the identity attribute in SQL mean?
Feb 19, 2024 am 11:24 AM
What is Identity in SQL? Specific code examples are needed. In SQL, Identity is a special data type used to generate auto-incrementing numbers. It is often used to uniquely identify each row of data in a table. The Identity column is often used in conjunction with the primary key column to ensure that each record has a unique identifier. This article will detail how to use Identity and some practical code examples. The basic way to use Identity is to use Identit when creating a table.
Unpatchable Yubico two-factor authentication key vulnerability breaks the security of most Yubikey 5, Security Key, and YubiHSM 2FA devices
Sep 04, 2024 pm 06:32 PM
An unpatchable Yubico two-factor authentication key vulnerability has broken the security of most Yubikey 5, Security Key, and YubiHSM 2FA devices. The Feitian A22 JavaCard and other devices using Infineon SLB96xx series TPMs are also vulnerable.All
Where is the imperial cms resource network template?
Apr 17, 2024 am 10:00 AM
Empire CMS template download location: Official template download: https://www.phome.net/template/ Third-party template website: https://www.dedecms.com/diy/https://www.0978.com.cn /https://www.jiaocheng.com/Installation method: Download template Unzip template Upload template Select template
How to use dedecms
Apr 16, 2024 pm 12:15 PM
Dedecms is an open source Chinese CMS system that provides content management, template system and security protection. The specific usage includes the following steps: 1. Install Dedecms. 2. Configure the database. 3. Log in to the management interface. 4. Create content. 5. Set up the template. 6. Manage users. 7. Maintain the system.
Accurate and reliable dedecms conversion tool evaluation report
Mar 12, 2024 pm 07:03 PM
Accurate and reliable dedecms conversion tool evaluation report With the rapid development of the Internet era, website construction has become one of the necessary tools for many companies and individuals. In website construction, using a content management system (CMS) can manage website content and functions more conveniently and efficiently. Among them, dedecms, as a well-known CMS system, is widely used in various website construction projects. However, sometimes we are faced with the need to convert the dedecms website to other formats, in which case we need to use a conversion tool
How to upload local videos to dedecms
Apr 16, 2024 pm 12:39 PM
How to upload local videos using Dedecms? Prepare the video file in a format that is supported by Dedecms. Log in to the Dedecms management backend and create a new video category. Upload video files on the video management page, fill in the relevant information and select the video category. To embed a video while editing an article, enter the file name of the uploaded video and adjust its dimensions.
How dedecms implements template replacement
Apr 16, 2024 pm 12:12 PM
Template replacement can be implemented in Dedecms through the following steps: modify the global.cfg file and set the required language pack. Modify the taglib.inc.php hook file and add support for language suffix template files. Create a new template file with a language suffix and modify the required content. Clear Dedecms cache.
A simple way to learn dedecms encoding conversion function
Mar 14, 2024 pm 02:09 PM
Learning dedecms encoding conversion function is not complicated. Simple code examples can help you quickly master this skill. In dedecms, the encoding conversion function is usually used to deal with problems such as Chinese garbled characters and special characters to ensure the normal operation of the system and the accuracy of data. The following will introduce in detail how to use the encoding conversion function of dedecms, allowing you to easily cope with various encoding-related needs. 1.UTF-8 to GBK In dedecms, if you need to convert UTF-8 encoded string to G
