Merge pull request #79 from govtechmy/fix/SSD-1231-add-leading-0-phone-number

SSD-1231 - normalize notelefon & nofax value by adding leading 0

Author: asyiqinasir

src/models/sekolah.py

@@ -67,13 +67,6 @@ class Sekolah(BaseModel):
     checksum: Optional[str] = Field(default=None, description="SHA-256 hash computed with certain fields excluded")
     createdAt: datetime = Field(default_factory=_utc_now, description="UTC timestamp when the document was created")
 
-    @field_validator("noTelefon", "noFax", mode="before")
-    def empty_to_none(cls, value):
-        if value is None:
-            return None
-        text = str(value).strip().upper()
-        return None if text in MISSING_VALUES else value
-
     @field_validator("kodSekolah", mode="before")
     def validate_kod_sekolah(cls, value: str | None) -> str:
         text = "" if value is None else str(value).strip()
@@ -171,6 +164,21 @@ def normalize_negeri(cls, value):
         except ValueError as exc:
             raise ValueError(f"Invalid negeri value: {text}") from exc
 
+    @field_validator("noTelefon", "noFax", mode="before")
+    def normalize_phone(cls, value):
+        if value is None:
+            return None
+
+        text = str(value).strip()
+
+        if not text or text.upper() in MISSING_VALUES:
+            return None
+
+        if text.startswith("0") or text.startswith("+"):
+            return text
+
+        return "0" + text
+
     model_config = {
         "populate_by_name": True,
         "extra": "ignore",