create tableifnot existsstudent(`id`INTAUTO_INCREMENTPRIMARYKEY,`name`VARCHAR(255)NOTNULLDEFAULT''COMMENT'姓名',`age`TINYINTUNSIGNEDnotnullDEFAULT0COMMENT'年龄',`sex`TINYINTUNSIGNEDnotnullDEFAULT10COMMENT'性别',`created_at`INTnotnullDEFAULT0COMMENT'新增时间',`updated_at`INTnotnullDEFAULT0COMMENT'修改...
CREATETABLE IF NOT EXISTS student( `id` INT AUTO_INCREMENT PRIMARY KEY, `name` VARCHAR(255) NOT NULL DEFAULT ''COMMENT '姓名', `age` TINYINT UNSIGNED NOT NULL DEFAULT 0COMMENT '年龄', `sex` TINYINT UNSIGNED NOT NULL DEFAULT 10 COMMENT '性别', `created_at`INT NOT NULL DEFAULT 0 COMM...
在数据库表中添加一个名为exists的布尔类型列。可以使用数据库迁移来创建或修改表结构,例如使用Laravel的Artisan命令php artisan make:migration add_exists_column_to_table --table=your_table_name来生成一个新的迁移文件。在生成的迁移文件中,使用boolean('exists')->default(false)方法来添加exists列,并设置...
Rinvex Categories auto generates slugs and auto detect and insert default translation for you if not provided, but you still can pass it explicitly through normal eloquent create method, as follows:app('rinvex.categories.category')->create(['name' => ['en' => 'My New Category'], 'slug'...
一、安装 1、安装 2、测试 配置nginx根目录为laravel/public,并且美化路由: http://localhost/index.php,出现如下页面证明安装laravel成功: 二、路由Route: 1、get案例: 2、post案例: 备注:如果出现如下页面 原因:因为post方法
if($this->fireModelEvent('saving')===false){returnfalse;}// If the model already exists in the database we can just update our record// that is already in this database using the current IDs in this "where"// clause to only update this model. Otherwise, we'll just insert them.if...
DB::table('students')->insert([ ['name'=> 'Tom', 'age'=> 23], ['name'=> 'Jack', 'age'=> 24], ['name'=> 'Greed', 'age'=> 25], ]); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15.
CREATE TABLEIFNOT EXISTS `tb_category2` ( `id` int(10) UNSIGNED NOTNULLAUTO_INCREMENT COMMENT '主键',`category_id` int(10) UNSIGNEDDEFAULTNULLCOMMENT '一级品类id',`ename` varchar(64) NOTNULLCOMMENT '英文名',`cname` varchar(64) NOTNULLCOMMENT '中文名',`seq` int(10) UNSIGNED NOTNULLCO...
protected static function boot() { parent::boot(); static::saving(function($model) { $savable = [...]; if (count($savable) > 0) { $model->attributes = array_intersect_key($model->attributes, array_flip($savable)); } }); } This is untested code, but the idea is to ...
If the exception is not caught, a 404 HTTP response is automatically sent back to the user. It is not necessary to write explicit checks to return 404 responses when using these methods: 如果异常没有被捕获,404异常将被响应。 Route::get('/api/flights/{id}', function ($id) { ...