Checkin loan license (#177)

* Onky checkin a loan with license

* Match with current collection in process

Author: natlibfi-kaisa

api/odl2.py

@@ -348,6 +348,7 @@ def run_once(self, progress: TimestampData) -> TimestampData:
             .filter(
                 and_(
                     LicensePool.open_access == False,
+                    LicensePool.collection_id == self.api.collection_id,
                     or_(
                         Loan.end
                         < now
@@ -364,8 +365,11 @@ def run_once(self, progress: TimestampData) -> TimestampData:
         changed_pools = set()
         total_deleted_loans = 0
         for loan in expired_loans:
+            # Only a license can be checked in
+            if loan.license:
+                loan.license.checkin()
             changed_pools.add(loan.license_pool)
-            loan.license.checkin()
+            self.log.info(f"Deleting loan {loan} in pool {loan.license_pool}")
             self._db.delete(loan)
             total_deleted_loans += 1