toString method Null safety

  1. @override
String toString()
override

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Implementation

@override
String toString() {
  final flagBuffer = StringBuffer();
  if (isPrimaryKey) {
    flagBuffer.write("primary_key ");
  }
  if (isTransient) {
    flagBuffer.write("transient ");
  }
  if (autoincrement) {
    flagBuffer.write("autoincrementing ");
  }
  if (isUnique) {
    flagBuffer.write("unique ");
  }
  if (defaultValue != null) {
    flagBuffer.write("defaults to $defaultValue ");
  }
  if (isIndexed) {
    flagBuffer.write("indexed ");
  }
  if (isNullable) {
    flagBuffer.write("nullable ");
  } else {
    flagBuffer.write("required ");
  }

  return "- $name | $type | Flags: ${flagBuffer.toString()}";
}