symfony - Doctrine - A new entity was found through the relationship -

since 2 weeks, having problem while trying flush new elements:

critical: doctrine\orm\orminvalidargumentexception:

a new entity found through relationship 'comment#capture' not configured cascade persist operations entity

but capture in database, , getting findoneby, if cascade persist it, or persist it, a

table constraint violation: duplicate entry.

the comments created in loop differents captures, new, , required field set.

with of entities persisted , / or got findone (and valid), flush still fails.

i'm on issue since while, please me

i had same problem , same entitymanager. wanted insert object related manytoone. , don't want cascade persist.

example :

$category = $em->find("category", 10);  $product = new product(); $product->setcategory($category)  $em->persist($product); $em->flush(); 

this throws same exception me.

so solution :

$category = $em->find("category", 10);  $product = new product(); $product->setcategory($category)  $em->merge($product); $em->flush();