# Custom Fields ```go TypeBooleanField = 1 << iota // string TypeCharField // string TypeTextField // time.Time TypeDateField // time.Time TypeDateTimeField // int16 TypeSmallIntegerField // int32 TypeIntegerField // int64 TypeBigIntegerField // uint16 TypePositiveSmallIntegerField // uint32 TypePositiveIntegerField // uint64 TypePositiveBigIntegerField // float64 TypeFloatField // float64 TypeDecimalField RelForeignKey RelOneToOne RelManyToMany RelReverseOne RelReverseMany ```