Issue #3277640 by BramDriesen: Create migration for the sub municipalities

migrations/belgian_postal_code_main_municipalities.yml

@@ -15,12 +15,16 @@ source:
     - "Deelgemeente"
     - "Hoofdgemeente"
     - "Provincie"
+  row_index_column: "Row index"
   keys:
     Hoofdgemeente:
       type: string
+  constants:
+    MIGRATION_NAME: "belgian_postal_code_main_municipalities"
 destination:
   plugin: entity:taxonomy_term
   default_bundle: belgian_postal_code
   translations: false
 process:
   name: "Hoofdgemeente"
+  weight: "Row index"

migrations/belgian_postal_code_sub_municipalities.yml

+id: belgian_postal_code_sub_municipalities
+label: "Import Belgian Postal Code - Sub municipalities"
+migration_group: Belgian Postal Code
+migration_tags:
+  - belgian_postal_code
+source:
+  plugin: spreadsheet
+  file: "private://import/belgian_postal_codes_nl.xls"
+  worksheet: "Plaatsnamen op postcode"
+  origin: A2
+  header_row: 1
+  columns:
+    - "Postcode"
+    - "Plaatsnaam"
+    - "Deelgemeente"
+    - "Hoofdgemeente"
+    - "Provincie"
+  row_index_column: "Row index"
+  keys:
+    Plaatsnaam:
+      type: string
+  constants:
+    MIGRATION_NAME: "belgian_postal_code_sub_municipalities"
+    PARENT_MIGRATION_NAME: "belgian_postal_code_main_municipalities"
+destination:
+  plugin: entity:taxonomy_term
+  default_bundle: belgian_postal_code
+  translations: false
+process:
+  name: "Plaatsnaam"
+  field_postal_code: "Postcode"
+  weight: "Row index"
+  parent:
+    -
+      plugin: callback
+      callable: belgian_postal_code_destination_mapper
+      source:
+        - constants/PARENT_MIGRATION_NAME
+        - Hoofdgemeente