refactor: rename DTree to DValue

src/lib/sqlite-connector.cpp

@@ -147,10 +147,10 @@ bool SQLite::bind_params(void* statement, const StringMap& params)
 	return(true);
 }
 
-DTree SQLite::collect_rows(void* statement)
+DValue SQLite::collect_rows(void* statement)
 {
 	sqlite3_stmt* stmt = (sqlite3_stmt*)statement;
-	DTree result;
+	DValue result;
 	s32 column_count = sqlite3_column_count(stmt);
 	std::vector<String> column_names;
 	column_names.reserve(column_count);
@@ -161,7 +161,7 @@ DTree SQLite::collect_rows(void* statement)
 		s32 rc = sqlite3_step(stmt);
 		if(rc == SQLITE_ROW)
 		{
-			DTree row;
+			DValue row;
 			for(s32 i = 0; i < column_count; i++)
 			{
 				const String& name = column_names[i];
@@ -201,19 +201,19 @@ DTree SQLite::collect_rows(void* statement)
 			return(result);
 		}
 		set_error(rc, "sqlite step failed");
-		return(DTree());
+		return(DValue());
 	}
 }
 
-DTree SQLite::query(String q)
+DValue SQLite::query(String q)
 {
 	StringMap params;
 	return(query(q, params));
 }
 
-DTree SQLite::query(String q, const StringMap& params)
+DValue SQLite::query(String q, const StringMap& params)
 {
-	DTree result;
+	DValue result;
 	affected_rows = 0;
 	insert_id = 0;
 	error_code = SQLITE_OK;
@@ -309,17 +309,17 @@ String sqlite_error(SQLite* db)
 	return(db->error());
 }
 
-DTree sqlite_query(SQLite* db, String q)
+DValue sqlite_query(SQLite* db, String q)
 {
 	if(!db)
-		return(DTree());
+		return(DValue());
 	return(db->query(q));
 }
 
-DTree sqlite_query(SQLite* db, String q, const StringMap& params)
+DValue sqlite_query(SQLite* db, String q, const StringMap& params)
 {
 	if(!db)
-		return(DTree());
+		return(DValue());
 	return(db->query(q, params));
 }