Fixing linking problems with std.datetime.Interval.invariant

Author: NCrashed

source/pgator/db/pq/types/conv.d

@@ -201,7 +201,7 @@ Bson toBson(PQType type)(ubyte[] val, shared IConnection conn)
         else
             return serializeToBson(convVal.to!string);
     }
-    else static if(is(T == struct))
+    else static if(is(T == struct) || is(T == class))
     {
         return serializeToBson(convVal);
     }

source/pgator/db/pq/types/time.d

@@ -323,6 +323,11 @@ struct PGInterval
 {
     private Interval!SysTime interval;
     alias interval this;
+
+    this(Interval!SysTime val)
+    {
+    	interval = val;
+    }
 
     static PGInterval fromBson(Bson bson)
     {
@@ -340,6 +345,13 @@ struct PGInterval
     }
 }
 
+/// Avoiding linking problems when std.datetime.Interval invariant isn't generated
+/// by dmd. See at: std.datetime.Interval:18404
+private debug extern(C) void _D3std8datetime36__T8IntervalTS3std8datetime7SysTimeZ8Interval11__invariantMxFNaZv()
+{
+	
+}
+
 PGInterval convert(PQType type)(ubyte[] val)
     if(type == PQType.Interval)
 {