What's the schema and what's the error?

From a glance.. Why do you have post_id and comment_id in those relationships?
You have a post_id field in the posts table and a comment_id field in the comments table?

public function comments()
{
 return $this->hasMany('Comment','comment_id');
}

Has many Comment, not Comments. With relation you refer to model, not table.

Also, why would you use post_id as foreign key in User model for posts function? It's like you want to insert id from User model into post_id in Post model. Your foreign key, in Post model should be user_id, so you can assign User to Post as an author.

thanks for the replies..

Yes... I used post_id field in the posts table and a comment_id field in the comments table..

This is the error i'm getting... SQLSTATE[42S22]: Column not found: 1054 Unknown column 'id' in 'where clause' (SQL: select * from posts where id = ? limit 1) (Bindings: array ( 0 => 15, ))

Well, I think you will have problem with User<>Post relation later with wrong foreign key (unless you really want to assign User's id to post_id), just giving you a heads-up.

Do you have self-incrementing id column in your Posts table? Find() searches by id.

Hi Belar.

These are my tables......

users:id name

posts:post_id(pk),post,user_id

comments:comment_id(pk),Comment,post_id