Function CheckPath

storage/connect/jsonudf.cpp:1393–1420

/ Check if a path was specified and set jvp according to it. */ /

/*  Check if a path was specified and set jvp according to it.                   */
/*********************************************************************************/
static my_bool CheckPath(PGLOBAL g, UDF_ARGS *args, PJSON jsp, PJVAL& jvp, int n)
{
	for (uint i = n; i < args->arg_count; i++)
		if (args->arg_type[i] == STRING_RESULT && args->args[i]) {
			// A path to a subset of the json tree is given
			char *path = MakePSZ(g, args, i);

			if (path) {
				PJSNX jsx = new(g)JSNX(g, jsp, TYPE_STRING);

				if (jsx->SetJpath(g, path))
					return true;

				if (!(jvp = jsx->GetJson(g))) {
					snprintf(g->Message, sizeof(g->Message), "No sub-item at '%s'", path);
					return true;
				} // endif jvp

			} else {
				snprintf(g->Message, sizeof(g->Message), "Path argument is null");
				return true;
			} // endif path

			break;
		}	// endif type

	return false;
} // end of CheckPath

/*********************************************************************************/
/*  Make the result according to the first argument type.                        */