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POPHP ORMs and optimized relationship queries
 

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    <p>I need a PHP ORM to work with relations well. Please consider code below in Zend:</p> <pre class="lang-php prettyprint-override"><code>$persons = new Persons(); $person = $persons-&gt;find(5)-&gt;current(); echo 'Name: '.$person-&gt;fullname; $phones = $person-&gt;findDependentRowset('Phones'); foreach($phones as $phone) echo 'Phone: '.$phone-&gt;phonenumber; </code></pre> <p>Or code below in xPDO:</p> <pre class="lang-php prettyprint-override"><code>$person = $xpdo-&gt;getObject('Persons', 5); echo 'Name: '.$person-&gt;get('fullname'); $phones = $person-&gt;getMany('Phones'); foreach($phones as $phone) echo 'Phone: '.$phone-&gt;get('phonenumber'); </code></pre> <p>in both scripts, ORMs executes two queries as below:</p> <pre class="lang-sql prettyprint-override"><code>SELECT * FROM persons WHERE id=5; SELECT * FROM phones WHERE person=5; </code></pre> <p>It means one query for main object and one query for each relation but what i need is using ONE query for main object and its relations! xPDO can do it as below:</p> <pre class="lang-php prettyprint-override"><code>$person = $xpdo-&gt;getObjectGraph('Persons', '{"Phones":{}}', 5); echo 'Name: '.$person-&gt;get('fullname'); foreach($person-&gt;Phones as $phone) echo 'Phone: '.$phone-&gt;get('phonenumber'); </code></pre> <p>which executes this query:</p> <pre class="lang-sql prettyprint-override"><code>SELECT * FROM persons LEFT JOIN phones ON phones.person=persons.id WHERE persons.id=5 </code></pre> <p>This is great but its not possible to set fields to get from tables! it means in this case xPDO use <strong>"SELECT * "</strong> so if i get an object and its 4 relations, i will get all fields of all these tables!</p> <p>So i need an ORM to execute query below for example above:</p> <pre class="lang-sql prettyprint-override"><code>SELECT persons.fullname , phones.phonenumber FROM persons LEFT JOIN phones ON phones.person=persons.id WHERE persons.id=5 </code></pre> <p>Doctrine can do it via DQL but i think Doctrine is not good for personal projects. Is there any PHP ORM to do this?</p> <p>Thanks AHHP</p>
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    1. COWhat's wrong with Doctrine? You can configure your entities to perform single queries with joins by using "eager fetching". See http://www.doctrine-project.org/docs/orm/2.0/en/reference/annotations-reference.html. Also, `Zend_Db_Table` is **not** an ORM. At best, it's an implementation of the table-data-gateway pattern
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    2. COThanks Phil. Doctorine is heavy for small projects! Would you please give me sample for my example? How to do it with(out) DQL?
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    3. COI have no idea what "heavy for small projects" means. It's a tool, you use it. If you want an ORM in your project, Doctrine would be my first choice. Also, see [Eager Loading](http://www.doctrine-project.org/docs/orm/2.1/en/reference/working-with-objects.html#by-eager-loading). You essentially add `fetch="EAGER"` to your association mapping. Also, it's *Doctrine*, not *Doctorine*.
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