Add the find method to the Eloquent Query class.

Signed-off-by: Jason Lewis <jason.lewis1991@gmail.com>

laravel/database/eloquent/query.php

@@ -50,6 +50,22 @@ public function __construct($model)
 		$this->table = $this->table();
 	}
 
+	/**
+	 * Find a model by its primary key.
+	 * 
+	 * @param  mixed  $id
+	 * @param  array  $columns
+	 * @return mixed
+	 */
+	public function find($id, $columns = array('*'))
+	{
+		$model = $this->model;
+
+		$this->table->where($model::$key, '=', $id);
+
+		return $this->first($columns);
+	}
+
 	/**
 	 * Get the first model result for the query.
 	 *