yii实现model添加默认值的方法(2种方法)_php实例
本文实例讲述了yii实现model添加默认值的方法。分享给大家供大家参考,具体如下:
yii model 继承自CActiveRecord
有些字段可能不会出现在表单中,而需要在程序中加入。如订单编号,时间戳,操作的user_id等等。
以下二种方法:
1、在rules()方法中设定:
public function rules() { // NOTE: you should only define rules for those attributes that // will receive user inputs. return array( array('start, end', 'required'), array('user_id', 'numerical', 'integerOnly'=>true), array('timestamp','default','value'=>date('Y-m-d H:i:s')), // The following rule is used by search(). // Please remove those attributes that should not be searched. array('id, start, end, user_id, timestamp', 'safe', 'on'=>'search'), ); }
2、在beforeSave()方法中设定:
function beforeSave() { $this->user_id = Yii::app()->user->id; return true; }
需要注意的是,beforeSave()方法需要return true,否则不会保存。
希望本文所述对大家基于Yii框架的PHP程序设计有所帮助。

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

After problems occurred in many centralized exchanges, more and more cryptocurrency investors began to transfer assets to cold wallets to reduce the risks posed by centralized exchanges. This article will introduce Trezor, the world's earliest cold wallet provider. Since the first cold wallet was launched in 2014, it has been sold in many countries around the world. Trezor's products include Model One launched in 2014 and the advanced version Model T launched in 2018. The following will continue to introduce the differences between these two products and other cold wallets. What is Trezor cold wallet? In 2014, Trezor launched the first cold wallet ModelOne. In addition to common BTC, ETH, USDT and other currencies, the wallet also supports more than 1,000 other currencies.

With the continuous development of cloud computing technology, data backup has become something that every enterprise must do. In this context, it is particularly important to develop a highly available cloud backup system. The PHP framework Yii is a powerful framework that can help developers quickly build high-performance web applications. The following will introduce how to use the Yii framework to develop a highly available cloud backup system. Designing the database model In the Yii framework, the database model is a very important part. Because the data backup system requires a lot of tables and relationships

As the Internet continues to develop, the demand for web application development is also getting higher and higher. For developers, developing applications requires a stable, efficient, and powerful framework, which can improve development efficiency. Yii is a leading high-performance PHP framework that provides rich features and good performance. Yii3 is the next generation version of the Yii framework, which further optimizes performance and code quality based on Yii2. In this article, we will introduce how to use Yii3 framework to develop PHP applications.

In the current information age, big data, artificial intelligence, cloud computing and other technologies have become the focus of major enterprises. Among these technologies, graphics card rendering technology, as a high-performance graphics processing technology, has received more and more attention. Graphics card rendering technology is widely used in game development, film and television special effects, engineering modeling and other fields. For developers, choosing a framework that suits their projects is a very important decision. Among current languages, PHP is a very dynamic language. Some excellent PHP frameworks such as Yii2, Ph

The Yii framework is an open source PHP Web application framework that provides numerous tools and components to simplify the process of Web application development, of which data query is one of the important components. In the Yii framework, we can use SQL-like syntax to access the database to query and manipulate data efficiently. The query builder of the Yii framework mainly includes the following types: ActiveRecord query, QueryBuilder query, command query and original SQL query

As the demand for web applications continues to grow, developers have more and more choices in choosing development frameworks. Symfony and Yii2 are two popular PHP frameworks. They both have powerful functions and performance, but when faced with the need to develop large-scale web applications, which framework is more suitable? Next we will conduct a comparative analysis of Symphony and Yii2 to help you make a better choice. Basic Overview Symphony is an open source web application framework written in PHP and is built on

Django is an open source Python web framework. It adopts the MVT (Model-View-Template) architectural pattern and divides the application into three parts: Model, View and Template. Among them, Model is a basic component in the Django framework, used to define and manage data. This article will provide a detailed explanation of Model in the Django framework. What is Model in Django

Yii framework: This article introduces Yii's method of converting objects into arrays or directly outputting them into json format. It has certain reference value and I hope it can help you.
