feat: temp barcode templates

services/barcode.py

@@ -1,20 +1,52 @@
 from sqlalchemy import select, update, insert
-from sqlalchemy.orm import selectinload
+from sqlalchemy.orm import selectinload, joinedload
 
-from models import BarcodeTemplate, BarcodeTemplateAttribute, barcode_template_attribute_link
-from schemas.barcode import (GetBarcodeTemplateByIdRequest,
-                             GetBarcodeTemplateByIdResponse,
-                             BarcodeTemplateCreateResponse,
-                             BarcodeTemplateCreateRequest, CreateBarcodeTemplateAttributeRequest,
-                             BarcodeTemplateUpdateResponse, BarcodeTemplateUpdateRequest,
-                             BarcodeTemplateAttributeSchema, GetAllBarcodeTemplateAttributesResponse,
-                             GetAllBarcodeTemplatesResponse, BarcodeTemplateDeleteRequest,
-                             BarcodeTemplateDeleteResponse)
+from models import BarcodeTemplate, BarcodeTemplateAttribute, barcode_template_attribute_link, Product
+from schemas.barcode import *
 from services.base import BaseService
 
 
 class BarcodeService(BaseService):
 
+    # region Barcode
+    async def get_barcode(self, request: GetProductBarcodeRequest) -> GetProductBarcodeResponse:
+        # get product by id
+        stmt = (
+            select(Product)
+            .options(
+                joinedload(Product.client)
+            )
+            .filter(Product.id == request.product_id)
+        )
+        query = await self.session.execute(stmt)
+        product: Product = query.scalar()
+        if not product:
+            raise ValueError('Товар не найден')
+
+        # get barcode template by id
+        if request.barcode_template_id:
+            stmt = select(BarcodeTemplate).filter(BarcodeTemplate.id == request.barcode_template_id)
+            query = await self.session.execute(stmt)
+            barcode_template = query.scalar()
+            if not barcode_template:
+                raise ValueError('Шаблон не найден')
+        elif product.barcode_template:
+            barcode_template = product.barcode_template
+        elif product.client.barcode_template:
+            barcode_template = product.client.barcode_template
+        else:
+            stmt = select(BarcodeTemplate).filter(BarcodeTemplate.is_default == True)
+            query = await self.session.execute(stmt)
+            barcode_template = query.scalar()
+            if not barcode_template:
+                raise ValueError('Стандартный шаблон не найден')
+        barcode_template: BarcodeTemplate
+
+
+        # endregion
+
+    # endregion
+
     # region Template
     async def get_barcode_template_by_id(self,
                                          request: GetBarcodeTemplateByIdRequest) -> GetBarcodeTemplateByIdResponse: