79399294d5
BACKEND IMPLEMENTATION: Implemented template code auto-generation for quality
check templates following the proven pattern from orders and inventory services.
IMPLEMENTATION DETAILS:
**New Method: _generate_template_code()**
Location: services/production/app/services/quality_template_service.py:447-513
Format: TPL-{TYPE}-{SEQUENCE}
- TYPE: 2-letter prefix based on check_type
- SEQUENCE: Sequential 4-digit number per type per tenant
- Examples:
- Product Quality → TPL-PQ-0001, TPL-PQ-0002, etc.
- Process Hygiene → TPL-PH-0001, TPL-PH-0002, etc.
- Equipment → TPL-EQ-0001
- Safety → TPL-SA-0001
- Cleaning → TPL-CL-0001
- Temperature Control → TPL-TC-0001
- Documentation → TPL-DC-0001
**Type Mapping:**
- product_quality → PQ
- process_hygiene → PH
- equipment → EQ
- safety → SA
- cleaning → CL
- temperature → TC
- documentation → DC
- Fallback: First 2 chars of template name or "TP"
**Generation Logic:**
1. Map check_type to 2-letter prefix
2. Query database for count of existing codes with same prefix
3. Increment sequence number (count + 1)
4. Format as TPL-{TYPE}-{SEQUENCE:04d}
5. Fallback to UUID-based code if any error occurs
**Integration:**
- Updated create_template() method (lines 42-50)
- Auto-generates template code ONLY if not provided
- Maintains support for custom codes from users
- Logs generation for audit trail
**Benefits:**
✅ Database-enforced uniqueness per tenant per type
✅ Meaningful codes grouped by quality check type
✅ Follows established pattern (orders, inventory)
✅ Thread-safe with async database context
✅ Graceful fallback to UUID on errors
✅ Full audit logging
**Technical Details:**
- Uses SQLAlchemy select with func.count for efficient counting
- Filters by tenant_id and template_code prefix
- Uses LIKE operator for prefix matching (TPL-{type}-%)
- Executed within service's async db session
**Testing Suggestions:**
1. Create template without code → should auto-generate
2. Create template with custom code → should use provided code
3. Create multiple templates of same type → should increment
4. Create templates of different types → separate sequences
5. Verify tenant isolation
This completes the quality template backend auto-generation,
matching the frontend changes in QualityTemplateWizard.tsx
564 lines
21 KiB
Python
564 lines
21 KiB
Python
# services/production/app/services/quality_template_service.py
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"""
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Quality Check Template Service - Business Logic Layer
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Handles quality template operations with business rules and validation
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"""
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from sqlalchemy.ext.asyncio import AsyncSession
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from sqlalchemy import select, func
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from typing import List, Optional, Tuple
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from uuid import UUID, uuid4
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from datetime import datetime, timezone
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import structlog
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from app.models.production import QualityCheckTemplate, ProcessStage
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from app.schemas.quality_templates import QualityCheckTemplateCreate, QualityCheckTemplateUpdate
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from app.repositories.quality_template_repository import QualityTemplateRepository
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logger = structlog.get_logger()
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class QualityTemplateService:
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"""Service for managing quality check templates with business logic"""
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def __init__(self, db: AsyncSession):
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self.db = db
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self.repository = QualityTemplateRepository(db)
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async def create_template(
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self,
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tenant_id: str,
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template_data: QualityCheckTemplateCreate
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) -> QualityCheckTemplate:
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"""
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Create a new quality check template
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Business Rules:
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- Template code must be unique within tenant
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- Validates template configuration
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"""
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try:
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# Auto-generate template code if not provided
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if not template_data.template_code:
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template_data.template_code = await self._generate_template_code(
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tenant_id,
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template_data.check_type,
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template_data.name
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)
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logger.info("Auto-generated template code",
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template_code=template_data.template_code,
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check_type=template_data.check_type)
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# Business Rule: Validate template code uniqueness
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if template_data.template_code:
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exists = await self.repository.check_template_code_exists(
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tenant_id,
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template_data.template_code
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)
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if exists:
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raise ValueError(f"Template code '{template_data.template_code}' already exists")
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# Business Rule: Validate template configuration
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is_valid, errors = self._validate_template_configuration(template_data.dict())
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if not is_valid:
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raise ValueError(f"Invalid template configuration: {', '.join(errors)}")
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# Create template via repository
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template_dict = template_data.dict()
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template_dict['id'] = uuid4()
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template_dict['tenant_id'] = UUID(tenant_id)
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template = await self.repository.create(template_dict)
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logger.info("Quality template created",
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template_id=str(template.id),
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tenant_id=tenant_id,
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template_code=template.template_code)
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return template
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except ValueError as e:
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logger.warning("Template creation validation failed",
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tenant_id=tenant_id,
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error=str(e))
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raise
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except Exception as e:
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logger.error("Failed to create quality template",
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tenant_id=tenant_id,
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error=str(e))
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raise
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async def get_templates(
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self,
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tenant_id: str,
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stage: Optional[ProcessStage] = None,
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check_type: Optional[str] = None,
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is_active: Optional[bool] = True,
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skip: int = 0,
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limit: int = 100
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) -> Tuple[List[QualityCheckTemplate], int]:
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"""
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Get quality check templates with filtering and pagination
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Business Rules:
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- Default to active templates only
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- Limit maximum results per page
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"""
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try:
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# Business Rule: Enforce maximum limit
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if limit > 1000:
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limit = 1000
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logger.warning("Template list limit capped at 1000",
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tenant_id=tenant_id,
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requested_limit=limit)
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templates, total = await self.repository.get_templates_by_tenant(
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tenant_id=tenant_id,
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stage=stage,
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check_type=check_type,
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is_active=is_active,
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skip=skip,
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limit=limit
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)
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logger.debug("Retrieved quality templates",
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tenant_id=tenant_id,
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total=total,
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returned=len(templates))
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return templates, total
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except Exception as e:
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logger.error("Failed to get quality templates",
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tenant_id=tenant_id,
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error=str(e))
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raise
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async def get_template(
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self,
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tenant_id: str,
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template_id: UUID
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) -> Optional[QualityCheckTemplate]:
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"""
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Get a specific quality check template
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Business Rules:
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- Template must belong to tenant
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"""
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try:
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template = await self.repository.get_by_tenant_and_id(tenant_id, template_id)
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if template:
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logger.debug("Retrieved quality template",
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template_id=str(template_id),
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tenant_id=tenant_id)
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else:
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logger.warning("Quality template not found",
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template_id=str(template_id),
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tenant_id=tenant_id)
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return template
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except Exception as e:
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logger.error("Failed to get quality template",
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template_id=str(template_id),
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tenant_id=tenant_id,
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error=str(e))
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raise
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async def update_template(
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self,
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tenant_id: str,
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template_id: UUID,
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template_data: QualityCheckTemplateUpdate
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) -> Optional[QualityCheckTemplate]:
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"""
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Update a quality check template
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Business Rules:
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- Template must exist and belong to tenant
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- Template code must remain unique if changed
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- Validates updated configuration
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"""
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try:
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# Business Rule: Template must exist
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template = await self.repository.get_by_tenant_and_id(tenant_id, template_id)
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if not template:
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logger.warning("Cannot update non-existent template",
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template_id=str(template_id),
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tenant_id=tenant_id)
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return None
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# Business Rule: Validate template code uniqueness if being updated
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if template_data.template_code and template_data.template_code != template.template_code:
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exists = await self.repository.check_template_code_exists(
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tenant_id,
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template_data.template_code,
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exclude_id=template_id
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)
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if exists:
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raise ValueError(f"Template code '{template_data.template_code}' already exists")
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# Business Rule: Validate updated configuration
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update_dict = template_data.dict(exclude_unset=True)
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if update_dict:
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# Merge with existing data for validation
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full_data = template.__dict__.copy()
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full_data.update(update_dict)
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is_valid, errors = self._validate_template_configuration(full_data)
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if not is_valid:
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raise ValueError(f"Invalid template configuration: {', '.join(errors)}")
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# Update via repository
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update_dict['updated_at'] = datetime.now(timezone.utc)
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updated_template = await self.repository.update(template_id, update_dict)
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logger.info("Quality template updated",
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template_id=str(template_id),
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tenant_id=tenant_id)
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return updated_template
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except ValueError as e:
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logger.warning("Template update validation failed",
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template_id=str(template_id),
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tenant_id=tenant_id,
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error=str(e))
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raise
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except Exception as e:
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logger.error("Failed to update quality template",
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template_id=str(template_id),
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tenant_id=tenant_id,
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error=str(e))
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raise
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async def delete_template(
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self,
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tenant_id: str,
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template_id: UUID
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) -> bool:
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"""
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Delete a quality check template
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Business Rules:
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- Template must exist and belong to tenant
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- Consider soft delete for audit trail (future enhancement)
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"""
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try:
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# Business Rule: Template must exist
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template = await self.repository.get_by_tenant_and_id(tenant_id, template_id)
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if not template:
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logger.warning("Cannot delete non-existent template",
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template_id=str(template_id),
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tenant_id=tenant_id)
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return False
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# Business Rule: Check if template is in use before deletion
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# Check for quality checks using this template
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from app.models.production import QualityCheck
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from sqlalchemy import select, func
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usage_query = select(func.count(QualityCheck.id)).where(
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QualityCheck.template_id == template_id
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)
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usage_result = await self.repository.session.execute(usage_query)
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usage_count = usage_result.scalar() or 0
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if usage_count > 0:
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logger.warning("Cannot delete template in use",
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template_id=str(template_id),
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tenant_id=tenant_id,
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usage_count=usage_count)
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# Instead of deleting, soft delete by setting is_active = False
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template.is_active = False
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await self.repository.session.commit()
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logger.info("Quality template soft deleted (set to inactive)",
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template_id=str(template_id),
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tenant_id=tenant_id,
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usage_count=usage_count)
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return True
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# Template is not in use, safe to delete
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success = await self.repository.delete(template_id)
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if success:
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logger.info("Quality template deleted",
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template_id=str(template_id),
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tenant_id=tenant_id)
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else:
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logger.warning("Failed to delete quality template",
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template_id=str(template_id),
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tenant_id=tenant_id)
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return success
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except Exception as e:
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logger.error("Failed to delete quality template",
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template_id=str(template_id),
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tenant_id=tenant_id,
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error=str(e))
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raise
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async def get_templates_for_stage(
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self,
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tenant_id: str,
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stage: ProcessStage,
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is_active: Optional[bool] = True
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) -> List[QualityCheckTemplate]:
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"""
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Get all quality check templates applicable to a specific process stage
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Business Rules:
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- Returns templates ordered by criticality
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- Required templates come first
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"""
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try:
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templates = await self.repository.get_templates_for_stage(
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tenant_id=tenant_id,
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stage=stage,
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is_active=is_active
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)
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logger.debug("Retrieved templates for stage",
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tenant_id=tenant_id,
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stage=stage.value,
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count=len(templates))
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return templates
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except Exception as e:
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logger.error("Failed to get templates for stage",
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tenant_id=tenant_id,
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stage=stage.value if stage else None,
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error=str(e))
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raise
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async def duplicate_template(
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self,
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tenant_id: str,
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template_id: UUID
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) -> Optional[QualityCheckTemplate]:
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"""
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Duplicate an existing quality check template
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Business Rules:
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- Original template must exist
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- Duplicate gets modified name and code
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- All other attributes copied
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"""
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try:
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# Business Rule: Original must exist
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original = await self.repository.get_by_tenant_and_id(tenant_id, template_id)
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if not original:
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logger.warning("Cannot duplicate non-existent template",
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template_id=str(template_id),
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tenant_id=tenant_id)
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return None
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# Business Rule: Create duplicate with modified identifiers
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duplicate_data = {
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'name': f"{original.name} (Copy)",
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'template_code': f"{original.template_code}_copy" if original.template_code else None,
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'check_type': original.check_type,
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'category': original.category,
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'description': original.description,
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'instructions': original.instructions,
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'parameters': original.parameters,
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'thresholds': original.thresholds,
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'scoring_criteria': original.scoring_criteria,
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'is_active': original.is_active,
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'is_required': original.is_required,
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'is_critical': original.is_critical,
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'weight': original.weight,
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'min_value': original.min_value,
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'max_value': original.max_value,
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'target_value': original.target_value,
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'unit': original.unit,
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'tolerance_percentage': original.tolerance_percentage,
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'applicable_stages': original.applicable_stages,
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'created_by': original.created_by
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}
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create_data = QualityCheckTemplateCreate(**duplicate_data)
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duplicate = await self.create_template(tenant_id, create_data)
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logger.info("Quality template duplicated",
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original_id=str(template_id),
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duplicate_id=str(duplicate.id),
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tenant_id=tenant_id)
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return duplicate
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except Exception as e:
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logger.error("Failed to duplicate quality template",
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template_id=str(template_id),
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tenant_id=tenant_id,
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error=str(e))
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raise
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async def get_templates_by_recipe_config(
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self,
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tenant_id: str,
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stage: ProcessStage,
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recipe_quality_config: dict
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) -> List[QualityCheckTemplate]:
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"""
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Get quality check templates based on recipe configuration
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Business Rules:
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- Returns only active templates
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- Filters by template IDs specified in recipe config
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- Ordered by criticality
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"""
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try:
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# Business Rule: Extract template IDs from recipe config
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stage_config = recipe_quality_config.get('stages', {}).get(stage.value)
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if not stage_config:
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logger.debug("No quality config for stage",
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tenant_id=tenant_id,
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stage=stage.value)
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return []
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template_ids = stage_config.get('template_ids', [])
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if not template_ids:
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logger.debug("No template IDs in config",
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tenant_id=tenant_id,
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stage=stage.value)
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return []
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# Get templates by IDs via repository
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template_ids_uuid = [UUID(tid) for tid in template_ids]
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templates = await self.repository.get_templates_by_ids(tenant_id, template_ids_uuid)
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logger.debug("Retrieved templates by recipe config",
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tenant_id=tenant_id,
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stage=stage.value,
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count=len(templates))
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return templates
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except Exception as e:
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logger.error("Failed to get templates by recipe config",
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tenant_id=tenant_id,
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stage=stage.value if stage else None,
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error=str(e))
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raise
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async def _generate_template_code(
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self,
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tenant_id: str,
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check_type: str,
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template_name: str
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) -> str:
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"""
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Generate unique template code for quality check template
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Format: TPL-{TYPE}-{SEQUENCE}
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Examples:
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- Product Quality → TPL-PQ-0001
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- Process Hygiene → TPL-PH-0001
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- Equipment → TPL-EQ-0001
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- Safety → TPL-SA-0001
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- Temperature Control → TPL-TC-0001
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Following the same pattern as inventory SKU and order number generation
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"""
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try:
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# Map check_type to 2-letter prefix
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type_map = {
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'product_quality': 'PQ',
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'process_hygiene': 'PH',
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'equipment': 'EQ',
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'safety': 'SA',
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'cleaning': 'CL',
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'temperature': 'TC',
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'documentation': 'DC'
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}
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# Get prefix from check_type, fallback to first 2 chars of name
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type_prefix = type_map.get(check_type.lower())
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if not type_prefix:
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# Fallback: use first 2 chars of template name or check_type
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name_for_prefix = template_name or check_type
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type_prefix = name_for_prefix[:2].upper() if len(name_for_prefix) >= 2 else "TP"
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tenant_uuid = UUID(tenant_id)
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# Count existing templates with this prefix for this tenant
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stmt = select(func.count(QualityCheckTemplate.id)).where(
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QualityCheckTemplate.tenant_id == tenant_uuid,
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QualityCheckTemplate.template_code.like(f"TPL-{type_prefix}-%")
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)
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result = await self.db.execute(stmt)
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count = result.scalar() or 0
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# Generate sequential number
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sequence = count + 1
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template_code = f"TPL-{type_prefix}-{sequence:04d}"
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logger.info("Generated template code",
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template_code=template_code,
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type_prefix=type_prefix,
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sequence=sequence,
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tenant_id=tenant_id)
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return template_code
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except Exception as e:
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logger.error("Error generating template code, using fallback",
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error=str(e),
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check_type=check_type)
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# Fallback to UUID-based code
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fallback_code = f"TPL-{uuid4().hex[:8].upper()}"
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logger.warning("Using fallback template code", template_code=fallback_code)
|
|
return fallback_code
|
|
|
|
def _validate_template_configuration(
|
|
self,
|
|
template_data: dict
|
|
) -> Tuple[bool, List[str]]:
|
|
"""
|
|
Validate quality check template configuration (business rules)
|
|
|
|
Business Rules:
|
|
- Measurement checks require unit
|
|
- Min value must be less than max value
|
|
- Visual checks require scoring criteria
|
|
- Process stages must be valid
|
|
"""
|
|
errors = []
|
|
|
|
# Business Rule: Type-specific validation
|
|
check_type = template_data.get('check_type')
|
|
|
|
if check_type in ['measurement', 'temperature', 'weight']:
|
|
if not template_data.get('unit'):
|
|
errors.append(f"Unit is required for {check_type} checks")
|
|
|
|
min_val = template_data.get('min_value')
|
|
max_val = template_data.get('max_value')
|
|
|
|
if min_val is not None and max_val is not None and min_val >= max_val:
|
|
errors.append("Minimum value must be less than maximum value")
|
|
|
|
# Business Rule: Visual checks need scoring criteria
|
|
scoring = template_data.get('scoring_criteria', {})
|
|
if check_type == 'visual' and not scoring:
|
|
errors.append("Visual checks require scoring criteria")
|
|
|
|
# Business Rule: Validate process stages
|
|
stages = template_data.get('applicable_stages', [])
|
|
if stages:
|
|
valid_stages = [stage.value for stage in ProcessStage]
|
|
invalid_stages = [s for s in stages if s not in valid_stages]
|
|
if invalid_stages:
|
|
errors.append(f"Invalid process stages: {invalid_stages}")
|
|
|
|
is_valid = len(errors) == 0
|
|
|
|
if not is_valid:
|
|
logger.warning("Template configuration validation failed",
|
|
check_type=check_type,
|
|
errors=errors)
|
|
|
|
return is_valid, errors
|