publicfunctionup(){Schema::create('user_profiles',function(Blueprint $table){$table->increments('id');$table->integer('user_id')->unsigned()->default(0)->unique();$table->string('bio')->nullable()->comment('个性签名');$table->string('city')->nullable()->comment('所在城市');$tab...
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在Laravel中,nullable是一个用于数据库迁移和模型定义的修饰符,用于指定某个字段是否允许为空。当一个字段被标记为nullable时,表示该字段可以在数据库中存储NULL值。 在前台使用nullable并不是一个常见的操作,因为nullable主要用于数据库层面的数据验证和存储。前台通常是指用户界面,而nullable更多地与后台逻辑和数据库交...
Schema::table('users', function (Blueprint $table) { $table->integer('votes')->nullable()->change();}); In Laravel 10, this migration would retain theunsigned,default, andcommentattributes on the column. However, in Laravel 11, the migration must now also include all of the attributes ...
public function store(Request $request) { $request->validate([ 'title' => 'required|unique:posts|max:255', 'body' => 'required', 'publish_at' => 'nullable|date', ]); ... } 最好是这样:public function store(PostRequest $request) { ... } class PostRequest extends Request { public...
$table->softDeletes(); $table->enum('choices', array('foo', 'bar')); // 添加 remember_token 为 VARCHAR(100) NULL $table->rememberToken(); // 添加整型的 parent_id 和字符串类型的 parent_type $table->morphs('parent'); ->nullable() ->default($value) ->unsigned()Security...
Schema::create('user_profiles', function (Blueprint$table) {$table->increments('id');$table->integer('user_id')->unsigned()->default(0)->unique();$table->string('bio')->nullable()->comment('个性签名');$table->string('city')->nullable()->comment('所在城市');$table->json('hobby...
Schema::table('users',function($table){$table->string('name',50)->nullable()->change();}); 修改字段名称 要修改字段名称,可在结构生成器内使用renameColumn方法,请确认在修改前composer.json文件内已经加入doctrine/dbal。 Schema::table('users',function($table){$table->renameColumn('from','to')...
Schema::create('sessions',function($table){$table->string('id')->primary();$table->foreignId('user_id')->nullable()->index();$table->string('ip_address',45)->nullable();$table->text('user_agent')->nullable();$table->text('payload');$table->integer('last_activity')->index()...
use Illuminate\Database\Schema\Blueprint;use Illuminate\Support\Facades\Schema;Schema::create('sessions', function (Blueprint $table) { $table->string('id')->primary(); $table->foreignId('user_id')->nullable()->index(); $table->string('ip_address', 45)->nullable(); $table->text('...