If I'm already using PDO then what is the advantage to further abstracting SELECT queries into Laravel's Eloquent ORM?

问题

Consider the following READ and WRITE queries:

Read

// Retrieves a person (and their active game score if they have one)
$sql = "SELECT CONCAT(people.first_name,' ',people.last_name) as 'name',
               people.uniform as 'people.uniform',
               games.score as 'games.score'
        FROM my_people as people
        LEFT JOIN my_games as games ON(games.person_id = people.id AND games.active = 1)
        WHERE people.id = :id";
$results = DB::select(DB::raw($sql),array("id"=>$id));

Write

 // Saves a person
 $person = new People;
 $person->data = array('first_name'=>$input['first_name'],
                       'last_name'=>$input['last_name'],
                       'uniform'=>$input['uniform']);
 $personID = $person->save();

 // Save the game score
 $game = new Games;
 $game->data = array('person_id'=>$personID,
                     'active'=>$input['active'],
                     'score'=>$input['score']);
 $game->save();

I put every write (INSERT/UPDATE) operation into my own centralized repository classes and call them using class->methods as shown above.
I may decide to put some of the read queries into repository classes if I find myself using a query over and over (DRY). I have to be careful of this, because I tend to go back and adjust the read query slightly to get more or less data out in specific areas of my application.
Many of my read queries are dynamic queries (coming from datagrids that are filterable and sortable).
The read queries will commonly have complex things like SUMs, COUNTs, ORDERing, GROUPing, COMPOSITE keys, etc.

Since my reads are so diverse, why would I need to further abstract them into Laravel's Eloquent ORM (or any ORM), especially since I'm using PDO (which has 12 different database drivers)? The only advantage I can see at the moment is if I wanted to rename a database field then that would be easier to do using the ORM. I'm not willing to pay the price in greater abstraction/obscurity for that though.

来源：https://stackoverflow.com/questions/28052185/if-im-already-using-pdo-then-what-is-the-advantage-to-further-abstracting-selec

标签

php

pdo

laravel-4

orm

eloquent