pub fn delete<T: IntoUpdateTarget>(
source: T,
) -> DeleteStatement<T::Table, T::WhereClause>
Expand description
Creates a DELETE
statement.
When a table is passed to delete
,
every row in the table will be deleted.
This scope can be narrowed by calling filter
on the table before it is passed in.
§Examples
§Deleting a single record:
let old_count = users.count().first::<i64>(connection);
diesel::delete(users.filter(id.eq(1))).execute(connection)?;
assert_eq!(old_count.map(|count| count - 1), users.count().first(connection));
§Deleting a whole table:
diesel::delete(users).execute(connection)?;
assert_eq!(Ok(0), users.count().first::<i64>(connection));