使用typo3扩展通量9.0.1更新colPos

Question

Since the update flux to 9.0.1 I need to update the colPos of elements.

This works fine:

UPDATE `tt_content` 
SET colPos = ((tx_flux_parent * 100) + 11) 
WHERE tx_flux_column = "content";

But I need also to update the localized content elements. It have in tx_flux_parent the localized parent uid. But I need the parent uid of the standard language.

I need to get the value "tx_flux_parent" in tt_content by l18n_parent. So I'm trying to build a query with l18n_parent like this:

UPDATE `tt_content` as t1 
SET colPos = (( (SELECT t2.tx_flux_parent 
                 FROM tt_content t2 
                 WHERE t1.l18n_parent = t2.uid) * 100) + 11) 
WHERE t1.tx_flux_column = "content";

And get this:

MySQL meldet: Dokumentation 1093 - Table 't1' is specified twice, both as a target for 'UPDATE' and as a separate source for data

Answer 1

MySQL does not allow referencing the table being updated again in another subquery, unless it is inside the FROM clause ( Derived Table ).

However, in this particular case, you can rather use "Self-Join":

UPDATE `tt_content` as t1 
JOIN `tt_content` as t2 
  ON t1.l18n_parent = t2.uid 
SET t1.colPos = ((t2.tx_flux_parent * 100) + 11) 
WHERE t1.tx_flux_column = 'content'