* * @return void */ public function down() { Schema::dropIfExists('posts'); } } 如你所见,我们通过新增的 $table->string('name') 来存储文章的标题。接下来,执行数据库迁移命令就回在数据库中创建对应的数据表了。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 $ php artisan migrate 在...
You can accomplish this by prepending the connection name to the table name using "dot" syntax:1'email' => 'exists:connection.staff,email'If you would like to customize the query executed by the validation rule, you may use the Rule class to fluently define the rule. In this example, ...
$results = DB::table('table1') ->whereExists(function ($query) { $query->select(DB::raw(1)) ->from('table2') ->whereRaw('table1.column = table2.column'); }) ->get(); 在上面的示例中,我们使用了两个表(table1和table2)来执行where exists查询。通过使用匿名函数,我们可以在子查询中...
If you would like to provide "remember me" functionality in your application, you may pass a boolean value as the second argument to the attempt method.When this value is true, Laravel will keep the user authenticated indefinitely or until they manually logout. Your users table must include ...
</table>Eof; 允许laravel程序执行sudo shell脚本 可以参考http://www.4wei.cn/archives/1001469详情 有一点需要注意应该使用命令的全名称(包含路径),否则可能出问题:执行sudo命令时command not found的解决办法 编辑sudoers文件,注释掉Defaults requiretty这行 ...
Create record if it does not exist already Laravel provides another beneficial method called firstOrCreate. This allows you to quickly check if a specific entry already exists and, if not, create an entry for it with 1 query. Let's have the following example, we have a post create form ...
laravel 数据库状态[42000]：语法错误或访问冲突：1064错误DB：：语句将自动生成运行有效迁移文件所需的...
-m 参数会同时生成数据库迁移文件xxxx_create_admins_table 修改app/Admin.php模型文件 <?phpnamespaceApp;useIlluminate\Notifications\Notifiable;useIlluminate\Foundation\Auth\UserasAuthenticatable;classAdminextendsAuthenticatable{useNotifiable;/** * The attributes that are mass assignable. ...
interface SettingsRepository { /** * Get all the properties in the repository for a single group */ public function getPropertiesInGroup(string $group): array; /** * Check if a property exists in a group */ public function checkIfPropertyExists(string $group, string $name): bool; /** ...
There is an id specified for node with the name offoowhich means that existing node will be filled and saved. If node is not existsModelNotFoundExceptionis thrown. Also, this node haschildrenspecified which is also an array of nodes; they will be processed in the same manner and saved as...