BelongsTo in Cake php?

One of the most powerful features of CakePHP is the ability to handle model associations, at its very simplest an association occurs when some data in the database is related to some other data. In normal PHP applications you would normally have to write a custom SQL statement that will grab the data using a JOIN statement. Obviously this kind of custom query can be accomplished in CakePHP but it will automatically grab all the related data as long as you have specified the relationship in the Model file.

In a simple example i'm going to stick with the mandatory 'Blog Application' and add a comment system, so that people can assign comments to posts. Before starting I recommend reading the Associations section in the manual and my previous post about using the 'bake' script.