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fetch Information Collection information

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Author Message

Michael Scofield

Thursday 26 June 2008 6:37:01 pm

I have a form (using information collection) that collects the e-mail of the internaut.

I would like to query the database (inside PHP code, not in template code) to know if a determined e-mail address is already collected.

What's the best way to do that?

Should I use eZPersistentObject::fetchObjectList()? If so, how?

Thank you
Michael

Piotrek Karaś

Thursday 26 June 2008 10:01:27 pm

For (almost) any db table (set) there is a corresponding dedicated PHP class extending eZPersistentObject, providing API for all the key operations on this particular dataset. If you want to be consistent, use that. For collected info, you have eZInformationCollection and eZInformationCollectionAttribute classes. You can extend them to write your own fetches or direct SQL queries - and it would be your decision which ones you use and for what purpose.

Much as I appreciate the idea behind quick and general purpose information collection, in most cases I find dedicated tables and classes encapsulated within custom extension a better choice.

Cheers,
Piotrek

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Michael Scofield

Thursday 26 June 2008 10:20:05 pm

I just did it.

I will write the code I used in hope that it will help someone:

// gets DB instance			
$db = eZDB::instance();
				
// SQL
$sql = "
   SELECT 
      count( ezinfocollection_attribute.id ) as count 
   FROM 
      ezinfocollection_attribute
   WHERE 
      ezinfocollection_attribute.contentobject_attribute_id = '" . $contentObjectAttribute->attribute('id') . "'
      AND ezinfocollection_attribute.contentclass_attribute_id = '" . $contentObjectAttribute->attribute('contentclassattribute_id') . "'
      AND ezinfocollection_attribute.data_text LIKE '" . addslashes($email) . "'
				";
				
// executes query
$resArray = $db->arrayQuery( $sql );
				
// verifies if the e-mail was found
if (intval($resArray[0]['count']) > 0) {
   // found

}
// not found

Michael