0004638: extending two classes with the same class

ID	Project	Category	View Status	Date Submitted	Last Update

0004638	OXID eShop (all versions)	2.3. Extensions (modules, themes)	public	2012-10-18 11:57	2012-12-10 13:33

Reporter	tjungcl	Assigned To
Priority	normal	Severity	major	Reproducibility	always
Status	resolved	Resolution	no change required
Product Version	4.6.5 revision 49955

Summary	0004638: extending two classes with the same class
Description	I have a very strange bug here: I extend both oxarticle and oxcategory with the same class, like 'extend' => array( 'oxarticle' => 'mymodule/core/mltobject', 'oxcategory' => 'mymodule/core/mltobject', ), In that class is a function like function dummy(){ return ''; } that works in both cases, because it only uses static or common functions from oxbase. If I activate that module, the frontend throws a lengthy sql error that some column can not be found. ------- Now when I copy the class to a identical second class and then extend like 'extend' => array( 'oxarticle' => 'mymodule/core/mltobject1', 'oxcategory' => 'mymodule/core/mltobject2', ), it works all fine!
Tags	No tags attached.
Attached Files	dummy.php (1,214 bytes)

Theme	Both
Browser	All
PHP Version	any
Database Version	any

dainius.bigelis 2012-10-19 08:58 reporter ~0007643	@Developers: please check from the source code side and fix if needed.

alfonsas_cirtautas 2012-10-19 14:18 reporter ~0007646	Well, you want an impossible thing, in plain php you can not define 2 different dummy classes oArticle = new dummy extends dummy_parent extends oxarticle oCategory = new dummy extends dummy_parent extends oxcategory

alfonsas_cirtautas 2012-10-19 14:22 reporter ~0007647	I attached some spike example file dummy.php with columns ...

alfonsas_cirtautas 2012-10-19 14:34 reporter ~0007648	http://stackoverflow.com/questions/561729/can-the-diamond-problem-be-really-solved