[wp-hackers] Reusing queries

[William Davis]

The site I'm working on doesn't use embedded images with posts but  
instead uses a few functions to see if there are images attached to  
the post, if those images meet a number of parameters, and finally to  
display those images.

So the call for an image usually looks something like this:
if(has_image() && image_meets_params()) {
	image();
}

The problem is, each of those functions queries the database, so the  
number of queries on a page can potentially explode.

has_image() checks to see if there are any images attached to the post  
at all
image_meets_params() grabs the first image and checks the meta to see  
if it is a horizontal or vertical image and checks the width
and then finally image() displays the image or images.

Is there a way to reuse some of these queries from one function to  
another, so for example if has_image returns true it then passes all  
the information onto image_meets_params? Or are these queries light  
enough that I need not even be worrying about it?

Will

William P. Davis
will.davis at gmail.com
207.660.5342
http://twitter.com/williampd
http://www.wpdavis.com