I have the following Entity scenario:
class PhyVarSelection
{
/**
* @ORM\ManyToOne(
* targetEntity="PhyVar",
* cascade={"persist"})
*
* @ORM\JoinColumn(
* name="phy_var_sel",
* referencedColumnName="id",
* nullable=false)
*/
protected $phyVar;
...
}
class PhyVar extends Variable
{
//no inverse reference
}
PhyVar could be referenced by multiple PhyVarSelection. When I delete a specific PhyVarSelection, I would like to delete the PhyVar if no other PhyVarSelection is referencing that PhyVar anymore.
oncascade={"persist", "remove"} on PhyVarSelection would try to remove it even though other selections are still referencing it. oprhanRemoval=true according to this well written explanation is not the right answer, but I could have misunderstood it.
Is a manual check the only way to accomplish this?
