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using Gee;
using Sqlite;
namespace Qlite {
public class Row {
private Map<string, string> text_map = new HashMap<string, string>();
private Map<string, long> int_map = new HashMap<string, long>();
private Map<string, double?> real_map = new HashMap<string, double?>();
internal Row(Statement stmt) {
for (int i = 0; i < stmt.column_count(); i++) {
switch(stmt.column_type(i)) {
case TEXT:
text_map[stmt.column_name(i)] = stmt.column_text(i);
break;
case INTEGER:
int_map[stmt.column_name(i)] = (long) stmt.column_int64(i);
break;
case FLOAT:
real_map[stmt.column_name(i)] = stmt.column_double(i);
break;
}
}
}
public T get<T>(Column<T> field) {
return field[this];
}
public string? get_text(string field) {
if (text_map.has_key(field)) {
return text_map[field];
}
return null;
}
public long get_integer(string field) {
return int_map[field];
}
public bool has_integer(string field) {
return int_map.has_key(field);
}
public double get_real(string field) {
return real_map[field];
}
public bool has_real(string field) {
return real_map.has_key(field) && real_map[field] != null;
}
}
public class RowIterator {
private Database db;
private Statement stmt;
public RowIterator.from_query_builder(Database db, QueryBuilder query) throws DatabaseError {
this.db = db;
this.stmt = query.prepare();
}
public RowIterator(Database db, string sql, string[]? args = null) throws DatabaseError {
this.db = db;
this.stmt = db.prepare(sql);
if (args != null) {
for (int i = 0; i < args.length; i++) {
stmt.bind_text(i, sql, sql.length);
}
}
}
public Row? next_value() throws DatabaseError {
int r = stmt.step();
if (r == Sqlite.ROW) return new Row(stmt);
if (r == Sqlite.DONE) return null;
throw new DatabaseError.EXEC_ERROR(@"SQLite error: $(db.errcode()) - $(db.errmsg())");
}
}
public class RowOption {
public Row? inner { get; private set; }
public RowOption(Row? row) {
this.inner = row;
}
public bool is_present() {
return inner != null;
}
public T get<T>(Column<T> field, T def = null) {
if (inner == null || field.is_null(inner)) return def;
return field[inner];
}
}
}
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