fix: add postcode type to model gen (#69)

* fix: add postcode type to model gen

* test: fix issue with demographics test post postcode change

Author: georgeRobertson

src/dve/metadata_parser/model_generator.py

@@ -65,7 +65,7 @@ def constr(
     "conint": pyd.validate_arguments(pyd.conint),
     "condate": pyd.validate_arguments(pyd.condate),
     "condecimal": pyd.validate_arguments(pyd.condecimal),
-    "postcode": domain_types.Postcode,
+    "postcode": domain_types.postcode,
     "nhsnumber": domain_types.NHSNumber,
     "permissivenhsno": domain_types.permissive_nhs_number(),
     "alphanumeric": domain_types.alphanumeric,

tests/testdata/demographics/basic_demographics.dischema.json

@@ -9,7 +9,9 @@
                     "Forename": "str",
                     "Surname": "str",
                     "Date_Of_Birth": "date",
-                    "Postcode": "postcode",
+                    "Postcode": {
+                        "callable": "postcode"
+                    },
                     "Postcode_Country": "str",
                     "Postcode_Format_Valid": "str",
                     "Postcode_Valid": "str"

tests/testdata/demographics/basic_demographics_ddb.dischema.json

@@ -9,7 +9,9 @@
                     "Forename": "str",
                     "Surname": "str",
                     "Date_Of_Birth": "date",
-                    "Postcode": "postcode",
+                    "Postcode": {
+                        "callable": "postcode"
+                    },
                     "Postcode_Country": "str",
                     "Postcode_Format_Valid": "str",
                     "Postcode_Valid": "str"