toString method
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() {
var details = [
'message: $message',
if (code != null) 'code: $code',
if (detail != null) 'detail: $detail',
if (hint != null) 'hint: $hint',
if (tableName != null) 'table: $tableName',
if (columnName != null) 'column: $columnName',
if (constraintName != null) 'constraint: $constraintName',
if (position != null) 'position: $position',
].join(', ');
return '$runtimeType: { $details }';
}