Creating Object Relations using PHP

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Kestutis Armalis	Thursday 13 January 2011 3:02:43 am So here is the situation: I have an object 'editObject' with an attribute called 'other_items', which is a multiple relations attribute. I also have another object 'destObject' in hand which I would like to add to the 'other_items' as a related object to the 'editObject' object. Puff... Hope this makes sense. I will also try to show this in a snippet: <?php // I have these objects: $destObject = eZContentObject::fetchByNodeID($node_id); $editObject = eZContentObject::fetchByNodeID($item->NodeID); // And an attribute: $dataMap = $editObject->attribute('data_map'); $eObjectAtt = $dataMap['other_items']; // The 'other_items' is a multiple related objects attribute // I want to add $destObject to $editObject attribute $eObjectAtt as a related object ?> Tried google, the community portal, basically everything and haven't found any script or snippet which would work. I figured out how to delete the things though. But no other information on how to add things, especially with other objects already being in the list. Thanks in advance. Cheers.
H-Works Agency	Thursday 13 January 2011 3:14:58 am toString() method with concatenated destination object ids should work. EZP is Great
Kestutis Armalis	Thursday 13 January 2011 3:21:34 am " toString() method with concatenated destination object ids should work. " Could you expand on that?
H-Works Agency	Thursday 13 January 2011 3:44:15 am Sorry in your case its the fromString() method. When you want to update a ezpublish object in php you use the ezp API. There is a very handy method called fromString() that take different argument syntax depending on the attribute datatype you are updating. This method support majors ezpublish built-in datatype including "object relations". Here is a code i use to loop attributes and update the object with a given data argument : function update ($contentObjectID, $arrayDatas) { // Fetch object to update $contentObject = eZContentObject::fetch($contentObjectID); // Get last version of the object $version = $contentObject->version($contentObject->attribute('current_version')); // Get all the object attributes $contentObjectAttributes = $version->contentObjectAttributes(); // Loop all attributes of the object's class foreach(array_keys($contentObjectAttributes) as $key) { // Identify each attribute name $contentObjectAttribute = $contentObjectAttributes[$key]; $contentClassAttribute = $contentObjectAttribute->contentClassAttribute(); $attributeIdentifier = $contentClassAttribute->attribute("identifier"); // Get the value of the attribute $value_old = $contentObjectAttribute->toString(); // Get the value of the field from function argument $value_new = array_key_exists($attributeIdentifier, $arrayDatas) ? $arrayDatas[$attributeIdentifier] : ''; // Update if value old and new are not empty & are different from each other if (($value_old == '' \|\| $value_old == '\|') && $value_new != '') && ($value_old != $value_new)) { $contentObjectAttribute->fromString($value_new); $contentObjectAttribute->store(); } } return $contentObjectID; } Returning on your case argument could be : $contentObjectID : the one you want to update $arrayDatas in this form : array('my_object_relations_attribute_identifier' => '62,28,58,20') Those values are objects ids of the object you want to relate to your attribute. This should work. EZP is Great
Kestutis Armalis	Thursday 13 January 2011 4:06:56 am Thank you Martin Harispuru, using your snippet I have managed to create a proper script which worked like a charm. Thank you! Cheers.