restart Field Report numbering at 1 each event

src/ims/store/_db.py

@@ -1571,11 +1571,11 @@ def fieldReportWithNumber(txn: Transaction) -> FieldReport:
             )
             raise
 
-    def _nextFieldReportNumber(self, txn: Transaction) -> int:
+    def _nextFieldReportNumber(self, eventID: str, txn: Transaction) -> int:
         """
         Look up the next available field report number.
         """
-        txn.execute(self.query.maxFieldReportNumber.text)
+        txn.execute(self.query.maxFieldReportNumber.text, {"eventID": eventID})
         row = txn.fetchone()
         assert row is not None
         number = cast(Optional[int], row["max(NUMBER)"])
@@ -1645,7 +1645,7 @@ def createFieldReport(
         ) -> FieldReport:
             if not directImport:
                 # Assign the incident number a number
-                number = self._nextFieldReportNumber(txn)
+                number = self._nextFieldReportNumber(fieldReport.eventID, txn)
                 fieldReport = fieldReport.replace(number=number)
 
             # Write incident row

src/ims/store/mysql/_queries.py

@@ -417,8 +417,9 @@
     ),
     maxFieldReportNumber=Query(
         "look up maximum field report number",
-        """
+        f"""
         select max(NUMBER) from FIELD_REPORT
+        where EVENT = ({query_eventID})
         """,
     ),
     fieldReports=Query(

src/ims/store/sqlite/_queries.py

@@ -409,8 +409,9 @@
     ),
     maxFieldReportNumber=Query(
         "look up maximum field report number",
-        """
+        f"""
         select max(NUMBER) from FIELD_REPORT
+        where EVENT = ({query_eventID})
         """,
     ),
     fieldReports=Query(