diff options
| -rw-r--r-- | qlite/src/query_builder.vala | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/qlite/src/query_builder.vala b/qlite/src/query_builder.vala index 75fe0499..915e2d2d 100644 --- a/qlite/src/query_builder.vala +++ b/qlite/src/query_builder.vala @@ -20,8 +20,9 @@ public class QueryBuilder : StatementBuilder { // ORDER BY [...] private OrderingTerm[]? order_by_terms = {}; - // LIMIT [...] + // LIMIT [...] OFFSET [...] private int limit_val; + private int offset_val; internal QueryBuilder(Database db) { base(db); @@ -103,6 +104,12 @@ public class QueryBuilder : StatementBuilder { return this; } + public QueryBuilder offset(int offset) { + if (this.limit_val == 0) error("limit required before offset"); + this.offset_val = offset; + return this; + } + public QueryBuilder single() { this.single_result = true; return limit(1); @@ -128,7 +135,7 @@ public class QueryBuilder : StatementBuilder { } internal override Statement prepare() { - Statement stmt = db.prepare(@"SELECT $column_selector $(table_name == null ? "" : @"FROM $((!) table_name)") WHERE $selection $(OrderingTerm.all_to_string(order_by_terms)) $(limit_val > 0 ? @" LIMIT $limit_val" : "")"); + Statement stmt = db.prepare(@"SELECT $column_selector $(table_name == null ? "" : @"FROM $((!) table_name)") WHERE $selection $(OrderingTerm.all_to_string(order_by_terms)) $(limit_val > 0 ? @" LIMIT $limit_val OFFSET $offset_val" : "")"); for (int i = 0; i < selection_args.length; i++) { selection_args[i].bind(stmt, i+1); } |