➜ Modelos y relaciones

Modelos 

1. Modelo User
2. Modelo Categoría
3. Modelo Empresa
4. Relaciones
5. Conexión BD
6. Migración

Modelo User

public function up(): void
    {
        Schema::create('users', function (Blueprint $table) {
            $table->id();
            $table->string('name');
            $table->string('email')->unique();
            $table->timestamp('email_verified_at')->nullable();
            $table->string('password');
            $table->rememberToken();
            $table->timestamps();
        });
    }

 protected $fillable = [
        'name',
        'email',
        'password',
    ];

Modelo Categoría

public function up(): void
    {
        Schema::create('categorias', function (Blueprint $table) {
            $table->id();
            $table->string("nombre",25);
            $table->string("slug",25)->unique();
            $table->text("descripcion")->nullable();
            $table->boolean("menu")->default(0);
            $table->integer("orden")->default(1);
        });
    }

class Categoria extends Model
{
    use HasFactory;
    protected $guarded = [];
    public $timestamps = false;
   
}

Modelo Empresa

public function up(): void
    {
        Schema::create('empresas', function (Blueprint $table) {
            $table->id();
            $table->string("nombre",50);
            $table->string("email",50)->unique();
            $table->string("telefono",9);
            $table->string("direccion",50);
            $table->string("website",50)->nullable();
            $table->string("facebook",50)->nullable();
            $table->string("youtube",50)->nullable();
            $table->string("tiktok",50)->nullable();
            $table->text("descripcion")->nullable();
            $table->string("urlfoto",50)->nullable();
            $table->boolean("publicado")->default(0);
            $table->integer("orden")->default(1);
            $table->integer("visitas")->default(1);
            $table->foreignId('categoria_id')->references('id')->on('categorias')->onUpdate('cascade')->onDelete('cascade');
            $table->foreignId('user_id')->references('id')->on('users')->onUpdate('cascade')->onDelete('cascade');
            $table->timestamps();
        });
    }

class Empresa extends Model
{
    use HasFactory;
    protected $guarded = [];
}

Relaciones

class Empresa extends Model
{
    use HasFactory;
    protected $guarded = [];

    public function categoria()
    {
        return $this->belongsTo(Categoria::class);
    }
    
    public function user()
    {
        return $this->belongsTo(User::class);
    }
}

class User extends Authenticatable
{
    use HasApiTokens, HasFactory, Notifiable;
....

    public function empresas()
    {
        return $this->hasMany(Empresa::class);
    }

    
}

class Categoria extends Model
{
    use HasFactory;
    protected $guarded = [];
    public $timestamps = false;

    public function empresas()
    {
        return $this->hasMany(Empresa::class);
    }
}

Conexión BD

DB_DATABASE=dbdiremp
DB_USERNAME=root
DB_PASSWORD=

Migración

php artisan migrate