Checking for Related Records on Deletion
After covering features, I wanted to share a real-world scenario with DataMgr (Read about DataMgr). In this case, the need to prevent the logical deletion of a record where related records exist.
In this system, we have volunteers and referrals (among other things). We want our administrators to be able to manage the referrals (how volunteers heard about the site). This includes the usual add/edit/delete actions. Except that we don't want them to be able to delete a referral value that is in use. Which is to say that they can't delete a referral that was chosen by a volunteer in the system.
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