compareTo method

@override int compareTo(Migration other)

Compares this object to another object.

Returns a value like a Comparator when comparing this to other. That is, it returns a negative integer if this is ordered before other, a positive integer if this is ordered after other, and zero if this and other are ordered together.

The other argument must be a value that is comparable to this object.

Implementation

@override
int compareTo(other) {
  if (id == null) {
    other.id == null ? 0 : -1;
  }
  if (other.id == null) return -1;
  return id! - other.id!;
}