Import circonscriptions et contours

nupes/models/geographie.py

@@ -52,6 +52,7 @@ class Circonscription(Base):
     id: Mapped[str] = mapped_column(String(6), primary_key=True)
     departement_code: Mapped[str] = mapped_column(ForeignKey("departement.code_insee"))
     numero: Mapped[int] = mapped_column(Integer())
+    geometry: Mapped[dict] = mapped_column(JSON())
 
     departement: Mapped[Departement] = relationship(Departement)
     bureaux_vote: Mapped[List["BureauVote"]] = relationship("BureauVote", back_populates="circonscription")

nupes/scripts/import_geographie.py

@@ -67,6 +67,52 @@ def importer_departements(engine: Engine, verbose: bool = False) -> None:
         session.commit()
 
 
+def importer_circonscriptions(engine: Engine, verbose: bool = False) -> None:
+    file = get_file("https://www.data.gouv.fr/fr/datasets/r/67c0f382-dc8d-4d1f-8a76-1162c53b9dfe",
+                    "circonscriptions-legislatives-p10.geojson")
+
+    with file.open('r') as f:
+        features = json.load(f)['features']
+
+    with Session(engine) as session:
+        for feature in tqdm(features, desc="Circonscriptions", disable=not verbose):
+            circo_dict = feature['properties']
+            code_circo = circo_dict['codeCirconscription']
+            code_dpt = circo_dict['codeDepartement']
+
+            match code_dpt:
+                case "ZA":
+                    code_dpt = "971"
+                case "ZB":
+                    code_dpt = "972"
+                case "ZC":
+                    code_dpt = "973"
+                case "ZD":
+                    code_dpt = "974"
+                case "ZS":
+                    code_dpt = "975"
+                case "ZM":
+                    code_dpt = "976"
+
+            numero_circo = int(code_circo[len(code_dpt):])
+            circo_id = f"{code_dpt}-{numero_circo:02d}"
+
+            if not session.execute(select(Departement).filter_by(code_insee=code_dpt)).scalar_one_or_none():
+                print("Département non trouvé avec le code", code_dpt)
+                continue
+
+            if circo := session.execute(select(Circonscription).filter_by(id=circo_id)).scalar_one_or_none():
+                circo.departement_code = code_dpt
+                circo.numero = numero_circo
+                circo.geometry = feature['geometry']
+            else:
+                circo = Circonscription(id=circo_id, departement_code=code_dpt, numero=numero_circo,
+                                        geometry=feature['geometry'])
+                session.add(circo)
+
+        session.commit()
+
+
 def importer_communes(engine: Engine, verbose: bool = False) -> None:
     etag = requests.get(
         "https://public.opendatasoft.com/api/explore/v2.1/catalog/datasets"
@@ -138,5 +184,6 @@ def importer_bureaux_vote(engine: Engine, verbose: bool = False) -> None:
 def run(engine: Engine, verbose: bool = False) -> None:
     importer_regions(engine, verbose)
     importer_departements(engine, verbose)
+    importer_circonscriptions(engine, verbose)
     importer_communes(engine, verbose)
     importer_bureaux_vote(engine, verbose)