Question

I want to add a property to my User model that returns the number of rows in the Project table that have a user Id of the user.

So something like this…

def numProjects = {      /* somehow get count from Project table        The straight sql would be:        SELECT COUNT(*) FROM projects WHERE userId = <the current user>       */  } 

Answer 1

According to the documentation here (found here), assuming you’re looking for the project count for a User of id 1234 and assuming that your Project model inherits the MetaMapper trait (probably through KeyedMetaMapper), it seems you can use the count method as such:

Project.count(By(User.id, 1234)) 

or

Project.count(BySql('userId = ?', 1234)) 

I can’t test because I haven’t used Lift yet, but it looks right… 🙂 Let me know if it works!