Deleting Multiple Objects¶
This API deletes multiple objects in a data table with a single request. Consider the following example, it demonstrates an API call which deletes all objects in the Person
data table where the value of the age
property is greater than 20
:
Backendless.data.of("Person").remove(whereClause: "age > 20").then((objectsDeleted) { print("Server has deleted $objectsDeleted objects"); });
Method¶
Future<int> Backendless.data.of("TABLE-NAME").remove({Map entity, String whereClause});
Future<int> Backendless.data.withClass<E>().remove({E entity, String whereClause});
where:
Argument | Description |
---|---|
TABLE-NAME |
Name of the table where the objects expressed via Map instances will be updated. |
E |
Dart class of the data objects to update in the database. |
whereClause |
A condition for selecting objects to be deleted in the data table. |
The method returns the number of objects deleted in the databfase.