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() {
List<String> queries = [];
if (_orderby.isNotEmpty) {
queries.add(r"$orderby=" + queries.join(", "));
}
if (_levelMax) {
queries.add(r"$levels=max");
} else if (_levels != null) {
queries.add(r"$levels=" + _levels.toString());
}
if (_selectAll) {
queries.add(r"$select=*");
} else if (_select.isNotEmpty) {
queries.add(r"$select=" + _select.join(","));
}
if (queries.isEmpty) {
return field;
}
if (_expand.isNotEmpty) {
queries.add(r"$expand=" + _expand.join(","));
}
if (_compute != null && _compute!.isNotEmpty) {
queries.add(r"$compute=" + _compute!);
}
return "$field(${queries.join(';')})";
}