stringToOnDelete function
Convert a string to an on delete constraint
Implementation
OnDelete stringToOnDelete(String value) {
OnDelete res;
switch (value) {
case "restrict":
res = OnDelete.restrict;
break;
case "cascade":
res = OnDelete.cascade;
break;
case "set_null":
res = OnDelete.setNull;
break;
case "set_default":
res = OnDelete.setDefault;
break;
default:
throw OnDeleteConstraintUnknown("Unknown on delete constraint $value");
}
return res;
}