#58 feat: importar y vincular categorías de Tryton al sincronizar productos

- Campo external_id en ProductCategory para vincular con Tryton (migración 0055)
- Import/upsert de categorías usadas por los productos sincronizados
- Asignación M2M en productos creados, actualizados y sin cambios
- Respuesta del import incluye created_categories y updated_categories con detalle
- Fix: leer las categorías desde la clave agrupada "template." que devuelve el RPC de Tryton

tienda_ilusion/don_confiao/migrations/0055_productcategory_external_id.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.0.6 on 2026-08-22 20:33
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('don_confiao', '0054_municipality_latitude_municipality_longitude'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='productcategory',
+            name='external_id',
+            field=models.CharField(blank=True, max_length=100, null=True),
+        ),
+    ]

tienda_ilusion/don_confiao/models/products.py

@@ -8,6 +8,7 @@ class MeasuringUnits(models.TextChoices):
 
 class ProductCategory(models.Model):
     name = models.CharField(max_length=100, unique=True)
+    external_id = models.CharField(max_length=100, null=True, blank=True)
 
     def __str__(self):
         return self.name

tienda_ilusion/don_confiao/services/tryton/products.py

@@ -1,4 +1,4 @@
-from ...models.products import Product
+from ...models.products import Product, ProductCategory
 
 
 class ProductTrytonService:
@@ -20,7 +20,20 @@ class ProductTrytonService:
         ]
         product_ids = self.client.call(method, params)
         tryton_products = self._get_product_details(product_ids, context)
-        
+
+        try:
+            (
+                categories_by_tryton_id,
+                category_report,
+            ) = self._import_categories(tryton_products, context)
+            created_categories = category_report["created"]
+            updated_categories = category_report["updated"]
+        except Exception as e:
+            print(f"Error al importar categorías: {e}")
+            categories_by_tryton_id = {}
+            created_categories = []
+            updated_categories = []
+
         checked_tryton_products = [
             {"id": p.get("id"), "name": p.get("name")}
             for p in tryton_products
@@ -32,10 +45,15 @@ class ProductTrytonService:
 
         for tryton_product in tryton_products:
             try:
-                product = Product.objects.get(external_id=tryton_product.get("id"))
+                product = Product.objects.get(
+                    external_id=tryton_product.get("id")
+                )
             except Product.DoesNotExist:
                 try:
                     product = self._create_product(tryton_product)
+                    self._sync_product_categories(
+                        product, tryton_product, categories_by_tryton_id
+                    )
                     created_products.append(self._build_item(product))
                     continue
                 except Exception as e:
@@ -49,12 +67,20 @@ class ProductTrytonService:
 
             try:
                 if self._need_update(product, tryton_product):
-                    changes = self._describe_changes(product, tryton_product)
+                    changes = self._describe_changes(
+                        product, tryton_product
+                    )
                     self._update_product(product, tryton_product)
+                    self._sync_product_categories(
+                        product, tryton_product, categories_by_tryton_id
+                    )
                     updated_products.append(
                         {**self._build_item(product), "detail": changes}
                     )
                 else:
+                    self._sync_product_categories(
+                        product, tryton_product, categories_by_tryton_id
+                    )
                     untouched_products.append(self._build_item(product))
             except Exception as e:
                 print(
@@ -70,8 +96,101 @@ class ProductTrytonService:
             "updated_products": updated_products,
             "created_products": created_products,
             "untouched_products": untouched_products,
+            "created_categories": created_categories,
+            "updated_categories": updated_categories,
         }
 
+    def _import_categories(self, tryton_products, context):
+        """Importa las categorías de Tryton usadas por los productos
+        sincronizados. Devuelve un mapa {id_tryton: ProductCategory} y un
+        reporte {"created": [...], "updated": [...]}
+        """
+        empty_report = {"created": [], "updated": []}
+        category_ids = {
+            category_id
+            for tryton_product in tryton_products
+            for category_id in self._extract_category_ids(tryton_product)
+        }
+        if not category_ids:
+            return {}, empty_report
+
+        categories = {}
+        report = {"created": [], "updated": []}
+        tryton_categories = self._get_category_details(
+            sorted(category_ids), context
+        )
+        for tryton_category in tryton_categories:
+            try:
+                external_id = str(tryton_category.get("id"))
+                name = tryton_category.get("name")
+                category = ProductCategory.objects.filter(
+                    external_id=external_id
+                ).first()
+                if category is None and name:
+                    category = ProductCategory.objects.filter(
+                        name=name
+                    ).first()
+                is_new = category is None
+                if is_new:
+                    category = ProductCategory()
+                old_name = category.name
+                old_external_id = category.external_id
+                category.name = name
+                category.external_id = external_id
+                category.save()
+                categories[tryton_category.get("id")] = category
+
+                item = {
+                    "id": category.id,
+                    "name": category.name,
+                    "external_id": category.external_id,
+                }
+                if is_new:
+                    report["created"].append(item)
+                    continue
+                changes = []
+                if old_name != category.name:
+                    changes.append(f"Nombre: {old_name} → {category.name}")
+                if old_external_id != category.external_id:
+                    changes.append(
+                        "External ID: "
+                        f"{old_external_id} → {category.external_id}"
+                    )
+                if changes:
+                    report["updated"].append(
+                        {**item, "detail": ", ".join(changes)}
+                    )
+            except Exception as e:
+                print(
+                    f"Error al importar categoría: {e}"
+                    f"La categoría: {tryton_category}"
+                )
+        return categories, report
+
+    @staticmethod
+    def _extract_category_ids(tryton_product):
+        """Extrae los IDs de categorías de la respuesta RPC de Tryton
+        (los campos con puntos llegan agrupados bajo la clave 'template.')"""
+        template = tryton_product.get("template.") or {}
+        return template.get("categories") or []
+
+    def _get_category_details(self, category_ids, context):
+        """Obtiene los nombres de categorías desde Tryton"""
+        method = "model.product.category.read"
+        params = (category_ids, ["id", "name"], context)
+        return self.client.call(method, params)
+
+    def _sync_product_categories(self, product, tryton_product, categories):
+        """Vincula al producto las categorías importadas desde Tryton"""
+        category_ids = self._extract_category_ids(tryton_product)
+        product.categories.set(
+            [
+                categories[category_id]
+                for category_id in category_ids
+                if category_id in categories
+            ]
+        )
+
     def _build_item(self, product):
         """Construye el objeto de un producto sincronizado"""
         return {"id": product.id, "name": product.name}
@@ -114,15 +233,16 @@ class ProductTrytonService:
     def _friendly_error(self, tryton_product, message):
         """Traduce causas conocidas de error a mensajes legibles"""
         if "price" in message and (
-            "not-null constraint" in message or "NOT NULL constraint" in message
+            "not-null constraint" in message
+            or "NOT NULL constraint" in message
         ):
-            return "El producto no tiene precio en Tryton (list_price nulo)"
+            return (
+                "El producto no tiene precio en Tryton (list_price nulo)"
+            )
         if "name" in message and (
             "duplicate key" in message or "UNIQUE constraint" in message
         ):
-            return (
+            return f"Ya existe un producto con el nombre '{tryton_product.get('name')}'"
-                f"Ya existe un producto con el nombre '{tryton_product.get('name')}'"
-            )
         return message
 
     def _get_product_details(self, product_ids, context):
@@ -133,6 +253,7 @@ class ProductTrytonService:
             "default_uom.id",
             "default_uom.rec_name",
             "list_price",
+            "template.categories",
         ]
         method = "model.product.product.read"
         params = (product_ids, tryton_fields, context)

tienda_ilusion/don_confiao/tests/test_products_from_tryton.py

@@ -3,7 +3,7 @@ from decimal import Decimal
 from unittest.mock import patch
 
 from django.test import TestCase
-from ..models.products import Product
+from ..models.products import Product, ProductCategory
 from .Mixins import LoginMixin
 
 
@@ -55,6 +55,7 @@ class TestProductsFromTryton(TestCase, LoginMixin):
                     "default_uom.id",
                     "default_uom.rec_name",
                     "list_price",
+                    "template.categories",
                 ],
                 {"company": 1},
             )
@@ -65,18 +66,21 @@ class TestProductsFromTryton(TestCase, LoginMixin):
                         "list_price": Decimal("25000"),
                         "name": "Producto 1",
                         "default_uom.": {"id": 1, "rec_name": "Unit"},
+                        "template.": {"id": 999, "categories": []},
                     },
                     {
                         "id": 191,
                         "list_price": Decimal("6000"),
                         "name": "Panela2",
                         "default_uom.": {"id": 1, "rec_name": "Unit"},
+                        "template.": {"id": 999, "categories": []},
                     },
                     {
                         "id": 192,
                         "list_price": Decimal("4500"),
                         "name": "Papa",
                         "default_uom.": {"id": 2, "rec_name": "Kilogram"},
+                        "template.": {"id": 999, "categories": []},
                     },
                 ]
 
@@ -107,6 +111,8 @@ class TestProductsFromTryton(TestCase, LoginMixin):
                     "detail": "Nombre: Panela → Panela2, Precio: 5000 → 6000, Unidad: UNIT → Unit",
                 }
             ],
+            "created_categories": [],
+            "updated_categories": [],
         }
         self.assertEqual(content, expected_response)
 
@@ -150,6 +156,7 @@ class TestProductsFromTryton(TestCase, LoginMixin):
                     "default_uom.id",
                     "default_uom.rec_name",
                     "list_price",
+                    "template.categories",
                 ],
                 {"company": 1},
             )
@@ -160,6 +167,7 @@ class TestProductsFromTryton(TestCase, LoginMixin):
                         "list_price": Decimal("25000"),
                         "name": self.product.name,
                         "default_uom.": {"id": 1, "rec_name": "Unit"},
+                        "template.": {"id": 999, "categories": []},
                     },
                 ]
 
@@ -186,6 +194,8 @@ class TestProductsFromTryton(TestCase, LoginMixin):
                 }
             ],
             "updated_products": [],
+            "created_categories": [],
+            "updated_categories": [],
         }
         self.assertEqual(content, expected_response)
 
@@ -215,6 +225,7 @@ class TestProductsFromTryton(TestCase, LoginMixin):
                     "default_uom.id",
                     "default_uom.rec_name",
                     "list_price",
+                    "template.categories",
                 ],
                 {"company": 1},
             )
@@ -225,6 +236,7 @@ class TestProductsFromTryton(TestCase, LoginMixin):
                         "list_price": None,
                         "name": "ENVASES Y EMPAQUES",
                         "default_uom.": {"id": 1, "rec_name": "Unit"},
+                        "template.": {"id": 999, "categories": []},
                     },
                 ]
 
@@ -275,6 +287,7 @@ class TestProductsFromTryton(TestCase, LoginMixin):
                     "default_uom.id",
                     "default_uom.rec_name",
                     "list_price",
+                    "template.categories",
                 ],
                 {"company": 1},
             )
@@ -285,12 +298,14 @@ class TestProductsFromTryton(TestCase, LoginMixin):
                         "list_price": Decimal("6000"),
                         "name": "Panela",
                         "default_uom.": None,
+                        "template.": {"id": 999, "categories": []},
                     },
                     {
                         "id": 192,
                         "list_price": Decimal("4500"),
                         "name": "Papa",
                         "default_uom.": {"id": 2, "rec_name": "Kilogram"},
+                        "template.": {"id": 999, "categories": []},
                     },
                 ]
 
@@ -311,3 +326,421 @@ class TestProductsFromTryton(TestCase, LoginMixin):
         self.assertEqual(failure["name"], "Panela")
         self.assertIn("Error al actualizar producto", failure["error"])
         self.assertEqual(content["untouched_products"], [{"id": 2, "name": "Papa"}])
+
+    @patch("sabatron_tryton_rpc_client.client.Client.call")
+    @patch("sabatron_tryton_rpc_client.client.Client.connect")
+    def test_import_products_with_categories(self, mock_connect, mock_call):
+        mock_connect.return_value = None
+
+        def fake_call(*args, **kwargs):
+            product_search = "model.product.product.search"
+            search_args = [
+                [["salable", "=", True]],
+                0,
+                1000,
+                [["rec_name", "ASC"], ["id", None]],
+                {"company": 1},
+            ]
+            if args == (product_search, search_args):
+                return [190]
+
+            product_read = "model.product.product.read"
+            product_args = (
+                [190],
+                [
+                    "id",
+                    "name",
+                    "default_uom.id",
+                    "default_uom.rec_name",
+                    "list_price",
+                    "template.categories",
+                ],
+                {"company": 1},
+            )
+            if args == (product_read, product_args):
+                return [
+                    {
+                        "id": 190,
+                        "list_price": Decimal("25000"),
+                        "name": "Producto 1",
+                        "default_uom.": {"id": 1, "rec_name": "Unit"},
+                        "template.": {"id": 999, "categories": [5, 8]},
+                    },
+                ]
+
+            category_read = "model.product.category.read"
+            category_args = (
+                [5, 8],
+                ["id", "name"],
+                {"company": 1},
+            )
+            if args == (category_read, category_args):
+                return [
+                    {"id": 5, "name": "Abarrotes"},
+                    {"id": 8, "name": "Bebidas"},
+                ]
+
+            raise Exception(
+                f"Sorry, args non expected on  this test: {args}"
+            )
+
+        mock_call.side_effect = fake_call
+
+        url = "/don_confiao/api/importar_productos_de_tryton"
+        response = self.client.post(url)
+        self.assertEqual(response.status_code, 200)
+
+        content = json.loads(response.content.decode("utf-8"))
+        self.assertEqual(content["failed_products"], [])
+        self.assertEqual(
+            content["created_products"], [{"id": 3, "name": "Producto 1"}]
+        )
+        self.assertEqual(content["updated_categories"], [])
+        self.assertEqual(
+            content["created_categories"],
+            [
+                {"id": 1, "name": "Abarrotes", "external_id": "5"},
+                {"id": 2, "name": "Bebidas", "external_id": "8"},
+            ],
+        )
+
+        created_product = Product.objects.get(name="Producto 1")
+        self.assertEqual(created_product.external_id, str(190))
+        categories = created_product.categories.order_by("external_id")
+        self.assertEqual(
+            [(c.external_id, c.name) for c in categories],
+            [("5", "Abarrotes"), ("8", "Bebidas")],
+        )
+        self.assertEqual(ProductCategory.objects.count(), 2)
+
+    @patch("sabatron_tryton_rpc_client.client.Client.call")
+    @patch("sabatron_tryton_rpc_client.client.Client.connect")
+    def test_import_updates_category_name_from_tryton(
+        self, mock_connect, mock_call
+    ):
+        mock_connect.return_value = None
+        local_category = ProductCategory.objects.create(
+            name="Granos", external_id="7"
+        )
+
+        def fake_call(*args, **kwargs):
+            product_search = "model.product.product.search"
+            search_args = [
+                [["salable", "=", True]],
+                0,
+                1000,
+                [["rec_name", "ASC"], ["id", None]],
+                {"company": 1},
+            ]
+            if args == (product_search, search_args):
+                return [190]
+
+            product_read = "model.product.product.read"
+            product_args = (
+                [190],
+                [
+                    "id",
+                    "name",
+                    "default_uom.id",
+                    "default_uom.rec_name",
+                    "list_price",
+                    "template.categories",
+                ],
+                {"company": 1},
+            )
+            if args == (product_read, product_args):
+                return [
+                    {
+                        "id": 190,
+                        "list_price": Decimal("25000"),
+                        "name": "Producto 1",
+                        "default_uom.": {"id": 1, "rec_name": "Unit"},
+                        "template.": {"id": 999, "categories": [7]},
+                    },
+                ]
+
+            category_read = "model.product.category.read"
+            category_args = (
+                [7],
+                ["id", "name"],
+                {"company": 1},
+            )
+            if args == (category_read, category_args):
+                return [
+                    {"id": 7, "name": "Cereales"},
+                ]
+
+            raise Exception(
+                f"Sorry, args non expected on  this test: {args}"
+            )
+
+        mock_call.side_effect = fake_call
+
+        url = "/don_confiao/api/importar_productos_de_tryton"
+        response = self.client.post(url)
+        self.assertEqual(response.status_code, 200)
+
+        content = json.loads(response.content.decode("utf-8"))
+        self.assertEqual(content["created_categories"], [])
+        self.assertEqual(
+            content["updated_categories"],
+            [
+                {
+                    "id": local_category.pk,
+                    "name": "Cereales",
+                    "external_id": "7",
+                    "detail": "Nombre: Granos → Cereales",
+                }
+            ],
+        )
+
+        refreshed_category = ProductCategory.objects.get(
+            pk=local_category.pk
+        )
+        self.assertEqual(refreshed_category.name, "Cereales")
+        self.assertEqual(refreshed_category.external_id, "7")
+        self.assertEqual(ProductCategory.objects.count(), 1)
+
+        created_product = Product.objects.get(name="Producto 1")
+        self.assertEqual(
+            list(created_product.categories.all()), [refreshed_category]
+        )
+
+    @patch("sabatron_tryton_rpc_client.client.Client.call")
+    @patch("sabatron_tryton_rpc_client.client.Client.connect")
+    def test_import_links_existing_category_by_name(
+        self, mock_connect, mock_call
+    ):
+        mock_connect.return_value = None
+        existing_category = ProductCategory.objects.create(name="Abarrotes")
+
+        def fake_call(*args, **kwargs):
+            product_search = "model.product.product.search"
+            search_args = [
+                [["salable", "=", True]],
+                0,
+                1000,
+                [["rec_name", "ASC"], ["id", None]],
+                {"company": 1},
+            ]
+            if args == (product_search, search_args):
+                return [190]
+
+            product_read = "model.product.product.read"
+            product_args = (
+                [190],
+                [
+                    "id",
+                    "name",
+                    "default_uom.id",
+                    "default_uom.rec_name",
+                    "list_price",
+                    "template.categories",
+                ],
+                {"company": 1},
+            )
+            if args == (product_read, product_args):
+                return [
+                    {
+                        "id": 190,
+                        "list_price": Decimal("25000"),
+                        "name": "Producto 1",
+                        "default_uom.": {"id": 1, "rec_name": "Unit"},
+                        "template.": {"id": 999, "categories": [5]},
+                    },
+                ]
+
+            category_read = "model.product.category.read"
+            category_args = (
+                [5],
+                ["id", "name"],
+                {"company": 1},
+            )
+            if args == (category_read, category_args):
+                return [
+                    {"id": 5, "name": "Abarrotes"},
+                ]
+
+            raise Exception(
+                f"Sorry, args non expected on  this test: {args}"
+            )
+
+        mock_call.side_effect = fake_call
+
+        url = "/don_confiao/api/importar_productos_de_tryton"
+        response = self.client.post(url)
+        self.assertEqual(response.status_code, 200)
+
+        content = json.loads(response.content.decode("utf-8"))
+        self.assertEqual(content["created_categories"], [])
+        self.assertEqual(
+            content["updated_categories"],
+            [
+                {
+                    "id": existing_category.pk,
+                    "name": "Abarrotes",
+                    "external_id": "5",
+                    "detail": "External ID: None → 5",
+                }
+            ],
+        )
+
+        self.assertEqual(
+            ProductCategory.objects.filter(name="Abarrotes").count(), 1
+        )
+        linked_category = ProductCategory.objects.get(
+            pk=existing_category.pk
+        )
+        self.assertEqual(linked_category.external_id, "5")
+
+        created_product = Product.objects.get(name="Producto 1")
+        self.assertEqual(
+            list(created_product.categories.all()), [linked_category]
+        )
+
+    @patch("sabatron_tryton_rpc_client.client.Client.call")
+    @patch("sabatron_tryton_rpc_client.client.Client.connect")
+    def test_import_product_without_categories(
+        self, mock_connect, mock_call
+    ):
+        mock_connect.return_value = None
+
+        def fake_call(*args, **kwargs):
+            product_search = "model.product.product.search"
+            search_args = [
+                [["salable", "=", True]],
+                0,
+                1000,
+                [["rec_name", "ASC"], ["id", None]],
+                {"company": 1},
+            ]
+            if args == (product_search, search_args):
+                return [190]
+
+            product_read = "model.product.product.read"
+            product_args = (
+                [190],
+                [
+                    "id",
+                    "name",
+                    "default_uom.id",
+                    "default_uom.rec_name",
+                    "list_price",
+                    "template.categories",
+                ],
+                {"company": 1},
+            )
+            if args == (product_read, product_args):
+                return [
+                    {
+                        "id": 190,
+                        "list_price": Decimal("25000"),
+                        "name": "Producto 1",
+                        "default_uom.": {"id": 1, "rec_name": "Unit"},
+                        "template.": {"id": 999, "categories": []},
+                    },
+                ]
+
+            raise Exception(
+                f"Sorry, args non expected on  this test: {args}"
+            )
+
+        mock_call.side_effect = fake_call
+
+        url = "/don_confiao/api/importar_productos_de_tryton"
+        response = self.client.post(url)
+        self.assertEqual(response.status_code, 200)
+
+        content = json.loads(response.content.decode("utf-8"))
+        self.assertEqual(content["failed_products"], [])
+        self.assertEqual(content["created_categories"], [])
+        self.assertEqual(content["updated_categories"], [])
+        created_product = Product.objects.get(name="Producto 1")
+        self.assertEqual(created_product.categories.count(), 0)
+        self.assertEqual(ProductCategory.objects.count(), 0)
+
+    @patch("sabatron_tryton_rpc_client.client.Client.call")
+    @patch("sabatron_tryton_rpc_client.client.Client.connect")
+    def test_import_assigns_categories_to_untouched_products(
+        self, mock_connect, mock_call
+    ):
+        mock_connect.return_value = None
+
+        def fake_call(*args, **kwargs):
+            product_search = "model.product.product.search"
+            search_args = [
+                [["salable", "=", True]],
+                0,
+                1000,
+                [["rec_name", "ASC"], ["id", None]],
+                {"company": 1},
+            ]
+            if args == (product_search, search_args):
+                return [192]
+
+            product_read = "model.product.product.read"
+            product_args = (
+                [192],
+                [
+                    "id",
+                    "name",
+                    "default_uom.id",
+                    "default_uom.rec_name",
+                    "list_price",
+                    "template.categories",
+                ],
+                {"company": 1},
+            )
+            if args == (product_read, product_args):
+                return [
+                    {
+                        "id": 192,
+                        "list_price": Decimal("4500"),
+                        "name": "Papa",
+                        "default_uom.": {"id": 2, "rec_name": "Kilogram"},
+                        "template.": {"id": 999, "categories": [9]},
+                    },
+                ]
+
+            category_read = "model.product.category.read"
+            category_args = (
+                [9],
+                ["id", "name"],
+                {"company": 1},
+            )
+            if args == (category_read, category_args):
+                return [
+                    {"id": 9, "name": "Tubérculos"},
+                ]
+
+            raise Exception(
+                f"Sorry, args non expected on  this test: {args}"
+            )
+
+        mock_call.side_effect = fake_call
+
+        url = "/don_confiao/api/importar_productos_de_tryton"
+        response = self.client.post(url)
+        self.assertEqual(response.status_code, 200)
+
+        content = json.loads(response.content.decode("utf-8"))
+        self.assertEqual(
+            content["untouched_products"], [{"id": 2, "name": "Papa"}]
+        )
+
+        untouched_product = Product.objects.get(id=2)
+        categories = untouched_product.categories.all()
+        self.assertEqual(len(categories), 1)
+        self.assertEqual(categories[0].name, "Tubérculos")
+        self.assertEqual(categories[0].external_id, "9")
+        self.assertEqual(content["updated_categories"], [])
+        self.assertEqual(
+            content["created_categories"],
+            [
+                {
+                    "id": categories[0].id,
+                    "name": "Tubérculos",
+                    "external_id": "9",
+                }
+            ],
+        )