QueryExecute<OBJ, R> extension Null safety

Extension for QueryBuilders

on

Methods

build() Query<R>
Create a query from this query builder.
count() Future<int>
Count how many objects match this query.
countSync() int
Count how many objects match this query.
deleteAll() Future<int>
Delete all objects that match this query. Returns the number of deleted objects.
deleteAllSync() int
Delete all objects that match this query. Returns the number of deleted objects.
deleteFirst() Future<bool>
Delete the first object that matches this query. Returns whether a object has been deleted.
deleteFirstSync() bool
Delete the first object that matches this query. Returns whether a object has been deleted.
exportJson() Future<List<Map<String, dynamic>>>
Export the results of this query as json.
exportJsonRaw<T>(T callback(Uint8List)) Future<T>
Export the results of this query as json bytes.
findAll() Future<List<R>>
Find all objects that match this query.
findAllSync() List<R>
Find all objects that match this query.
findFirst() Future<R?>
Find the first object that matches this query or null if no object matches.
findFirstSync() → R?
Find the first object that matches this query or null if no object matches.
watch({bool initialReturn = false}) Stream<List<R>>
Create a watcher that yiels the results of this query whenever its results have (potentially) changed.
watchLazy() Stream<void>
Watch the query for changes.