I am making a voting / rating application. I am working on the following query:
SELECT `cartoons`.`reference`, `cartoons`.`cartoon_title`,
`cartoons`.`date_added`, IFNULL(AVG(`ratings`.`rating`), 0) as 'average_rating'
FROM `cartoons` INNER JOIN `ratings` ON `cartoons`.`reference` =
`ratings`.`content_reference` WHERE `ratings`.`content_type` =3 ORDER BY
I only get 1 result because IFNULL(AVG(`ratings`.`rating`), 0) is giving me the
result of all the ratings every submitted where `ratings`.`content_type` =3.
The '3' is symbolic of cartoons.
What I am wanting to do is show on the web page a list of all the cartoons and
their current rating.
In my ratings table I have a content_type column to know what area of the web
site is being voted of (3 for cartoons) and I have content_reference which
referrs to the auto_increment value of cartoons.reference. How do I be more
specific with the AVG so I will get a rating for each cartoon in the table?