From 8344debe27fe8d707bfd2983dbfc8520eb258879 Mon Sep 17 00:00:00 2001 From: Robert Devasia Date: Mon, 5 Aug 2024 00:09:22 -0400 Subject: [PATCH] Fix for error at string to char* conversion in `executePreparedStatement` Dependency was throwing error ` template instance `arsd.postgres.PostgreSql.executePreparedStatement!(char, char)` error instantiating ` when use executePreparedStatement DUB : 1.38.1 PostgreSQL: 16 I got this error in the package ` template `to` is not callable using argument types `!(string)(char)` ` where the usage is ` db.executePreparedStatement("update_tbl_cmd",'3','a');` --- postgres.d | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/postgres.d b/postgres.d index 6d7ca50..107987e 100644 --- a/postgres.d +++ b/postgres.d @@ -85,16 +85,17 @@ class PostgreSql : Database { */ ResultSet executePreparedStatement(T...)(string name, T args) { - char*[args.length] argsStrings; + const(char)*[args.length] argsStrings; foreach(idx, arg; args) { // FIXME: optimize to remove allocations here + import std.conv; static if(!is(typeof(arg) == typeof(null))) argsStrings[idx] = toStringz(to!string(arg)); // else make it null } - auto res = PQexecPrepared(conn, toStringz(name), argsStrings.length, argStrings.ptr, 0, null, 0); + auto res = PQexecPrepared(conn, toStringz(name), argsStrings.length, argsStrings.ptr, null, null, 0); int ress = PQresultStatus(res); if(ress != PGRES_TUPLES_OK