diff options
Diffstat (limited to 'qlite/src/update_builder.vala')
| -rw-r--r-- | qlite/src/update_builder.vala | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/qlite/src/update_builder.vala b/qlite/src/update_builder.vala deleted file mode 100644 index 0bf83aee..00000000 --- a/qlite/src/update_builder.vala +++ /dev/null @@ -1,103 +0,0 @@ -using Sqlite; - -namespace Qlite { - -public class UpdateBuilder : StatementBuilder { - - // UPDATE [OR ...] - private string? or_val; - - // [...] - private Table? table; - private string table_name; - - // SET [...] - private StatementBuilder.AbstractField[] fields = {}; - - // WHERE [...] - private string selection = "1"; - private StatementBuilder.AbstractField[] selection_args = {}; - - internal UpdateBuilder(Database db, Table table) { - base(db); - this.table = table; - this.table_name = table.name; - } - - internal UpdateBuilder.for_name(Database db, string table) { - base(db); - this.table_name = table; - } - - public UpdateBuilder or(string or) { - this.or_val = or; - return this; - } - - public UpdateBuilder set<T>(Column<T> column, T value) { - fields += new Field<T>(column, value); - return this; - } - - public UpdateBuilder set_null<T>(Column<T> column) { - if (column.not_null) error("Can't set non-null column %s to null", column.name); - fields += new NullField<T>(column); - return this; - } - - public UpdateBuilder where(string selection, string[] selection_args = {}) { - if (this.selection != "1") error("selection was already done, but where() was called."); - this.selection = selection; - foreach (string arg in selection_args) { - this.selection_args += new StatementBuilder.StringField(arg); - } - return this; - } - - public UpdateBuilder with<T>(Column<T> column, string comp, T value) { - selection_args += new Field<T>(column, value); - selection = @"($selection) AND $(column.name) $comp ?"; - return this; - } - - public UpdateBuilder with_null<T>(Column<T> column) { - selection = @"($selection) AND $(column.name) ISNULL"; - return this; - } - - public UpdateBuilder without_null<T>(Column<T> column) { - selection = @"($selection) AND $(column.name) NOT NULL"; - return this; - } - - internal override Statement prepare() { - string sql = "UPDATE"; - if (or_val != null) sql += @" OR $((!)or_val)"; - sql += @" $table_name SET "; - for (int i = 0; i < fields.length; i++) { - if (i != 0) { - sql += ", "; - } - sql += @"$(((!)fields[i].column).name) = ?"; - } - sql += @" WHERE $selection"; - Statement stmt = db.prepare(sql); - for (int i = 0; i < fields.length; i++) { - fields[i].bind(stmt, i+1); - } - for (int i = 0; i < selection_args.length; i++) { - selection_args[i].bind(stmt, i + fields.length + 1); - } - return stmt; - } - - public void perform() { - if (fields.length == 0) return; - if (prepare().step() != DONE) { - critical("SQLite error: %d - %s", db.errcode(), db.errmsg()); - } - } - -} - -} |
