Laravel - Relationships - Chaining Orwhere Clauses After Relationships

As demonstrated in the example above, you are free to add additional constraints to relationships when querying them. However, use caution when chaining orWhere clauses onto a relationship, as the orWhere clauses will be logically grouped at the same level as the relationship constraint:

    
    $user->posts()
            ->where('active', 1)
            ->orWhere('votes', '>=', 100)
            ->get();
	

The example above will generate the following SQL. As you can see, the or clause instructs the query to return any user with greater than 100 votes. The query is no longer constrained to a specific user:

    
    select *
    from posts
    where user_id = ? and active = 1 or votes >= 100
	

In most situations, you should use logical groups to group the conditional checks between parentheses:

    
    use Illuminate\Database\Eloquent\Builder;
    
    $user->posts()
            ->where(function (Builder $query) {
                return $query->where('active', 1)
                             ->orWhere('votes', '>=', 100);
            })
            ->get();
	

The example above will produce the following SQL. Note that the logical grouping has properly grouped the constraints and the query remains constrained to a specific user:

    
    select *
    from posts
    where user_id = ? and (active = 1 or votes >= 100)