I have been trying to find the answer to this. I want to use the best method performance wise, but also want to make this solution portable as possible.
I have created a plugin that adds multiple post types and custom meta fields for each of these post types. Reviews is an example of this. I have a large database that isn't a part of wordpress that contains lots of video game information. When writing a review I have a box to add the name of the game being reviewed.
I have written a function displayGameInfo($gameID) as part of my plugin. In single.php i have the following code.This will output some information for the game just after the end of the main text body of a post.
$postid = get_the_ID(); $gameid = get_post_meta($postid,'nb_gameids_key', true); if(function_exists("displayGameInfo")) echo displayGameInfo($gameid);
People seem to be discouraging this method though and I agree with them in a way as this requires me to place a lot of custom programming within the theme. I would like if this was more portable across themes.
How should I approach this?