Anathema

ive looked everywhere for a code that makes all pokemon shiny, including eggs, and makes it permanent, even when the ar isnt plugged into the ds. now i have one that works for platinum, but i cant find one that works for diamond. ive found one; a real short one that only works with wild pokemon; i need shiny eggs. ive also tried the one supplied on this forum, and about four others, and they dont work. can anyone either generate one for me or share one that works please?