diff options
Diffstat (limited to 'qlite/src/query_builder.vala')
-rw-r--r-- | qlite/src/query_builder.vala | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/qlite/src/query_builder.vala b/qlite/src/query_builder.vala index dbfdef2a..75fe0499 100644 --- a/qlite/src/query_builder.vala +++ b/qlite/src/query_builder.vala @@ -98,10 +98,16 @@ public class QueryBuilder : StatementBuilder { } public QueryBuilder limit(int limit) { + if (this.limit_val != 0 && limit > this.limit_val) error("tried to increase an existing limit"); this.limit_val = limit; return this; } + public QueryBuilder single() { + this.single_result = true; + return limit(1); + } + public int64 count() { this.column_selector = @"COUNT($column_selector) AS count"; this.single_result = true; @@ -117,8 +123,8 @@ public class QueryBuilder : StatementBuilder { return new RowOption(row_()); } - public T get<T>(Column<T> field) { - return row()[field]; + public T get<T>(Column<T> field, T def = null) { + return row().get(field, def); } internal override Statement prepare() { |