AddDocuments::up PHP Метод

    public function up()
    {
        Schema::table('accounts', function ($table) {
            $table->string('logo')->nullable()->default(null);
            $table->unsignedInteger('logo_width');
            $table->unsignedInteger('logo_height');
            $table->unsignedInteger('logo_size');
            $table->boolean('invoice_embed_documents')->default(0);
            $table->boolean('document_email_attachment')->default(0);
        });
        \DB::table('accounts')->update(array('logo' => ''));
        Schema::dropIfExists('documents');
        Schema::create('documents', function ($t) {
            $t->increments('id');
            $t->unsignedInteger('public_id')->nullable();
            $t->unsignedInteger('account_id');
            $t->unsignedInteger('user_id');
            $t->unsignedInteger('invoice_id')->nullable();
            $t->unsignedInteger('expense_id')->nullable();
            $t->string('path');
            $t->string('preview');
            $t->string('name');
            $t->string('type');
            $t->string('disk');
            $t->string('hash', 40);
            $t->unsignedInteger('size');
            $t->unsignedInteger('width')->nullable();
            $t->unsignedInteger('height')->nullable();
            $t->timestamps();
        });
        Schema::table('documents', function ($t) {
            $t->foreign('account_id')->references('id')->on('accounts')->onDelete('cascade');
            $t->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
            $t->foreign('invoice_id')->references('id')->on('invoices')->onDelete('cascade');
            $t->foreign('expense_id')->references('id')->on('expenses')->onDelete('cascade');
            $t->unique(array('account_id', 'public_id'));
        });
    }