Bug #82100
Updated by Benjamin Rannow over 6 years ago
Hi,
I notice a massive performance drop if I add in TCA a label_userFunc.
I found the reason in the TYPO3\CMS\Backend\Form\FormDataProvider\AbstractItemProvider::processForeignTableClause
For my Setup
I have 2 Entities Post and Comment, these are Bidirectional Related with ManyToOne.
Post has a inline TCA which load all related Comments.
Comment has a label_userFunc in TCA which simply format a Datetime into the title.
After I Try to Debug the label_userFunc, i notice the method are called WAY TO OFTEN.
Then I look at the Queries. I saw that simply the sql Relation are missing in the Query.
That means every time I want to edit a Post, Typo3 load EVERY Comment from a certain PageId.
Example:
- Post_A has 3 Comments.
- All Posts together conatins over 9000 Comments.
If i want to edit Post_A, I expect that Typo3 Load only 3 Comments, but Actual load Every comment on the System and used on every Comment the label_userFunc.
I worte myself a little workarund which redurce the system and Database load dramatically:
https://gist.github.com/anonymous/7e307e73e6842fd6d94f28ba62ab2a7d#file-abstractitemprovider-php-L135-L146