Initial commit

backend/app/crud/requests.py

@@ -0,0 +1,207 @@
+from sqlalchemy.orm import Session
+from ..models import request as models
+from ..schemas import tables
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+from ..schemas import tables
+from datetime import datetime
+
+
+def create_request(db: Session, request: models.RequestCreate):
+    db_request = tables.Request(
+        employee_id=request.employee_id,
+        department=request.department,
+        request_type=request.request_type,
+        priority=request.priority,
+        description=request.description,
+        status="new",
+    )
+    db.add(db_request)
+    db.commit()
+    db.refresh(db_request)
+    return db_request
+
+
+def get_requests(db: Session, skip: int = 0, limit: int = 100):
+    requests = (
+        db.query(
+            tables.Request,
+            tables.Employee.last_name.label("employee_last_name"),
+            tables.Employee.first_name.label("employee_first_name"),
+        )
+        .join(tables.Employee)
+        .offset(skip)
+        .limit(limit)
+        .all()
+    )
+
+    return [
+        {
+            "id": req[0].id,
+            "employee_id": req[0].employee_id,
+            "department": req[0].department,
+            "request_type": req[0].request_type,
+            "priority": req[0].priority,
+            "status": req[0].status,
+            "description": req[0].description,
+            "created_at": req[0].created_at,
+            "employee_last_name": req[1],
+            "employee_first_name": req[2],
+        }
+        for req in requests
+    ]
+
+
+def get_requests_by_employee_lastname(db: Session, last_name: str):
+    requests = (
+        db.query(
+            tables.Request,
+            tables.Employee.last_name.label("employee_last_name"),
+            tables.Employee.first_name.label("employee_first_name"),
+        )
+        .join(tables.Employee)
+        .filter(tables.Employee.last_name.ilike(f"%{last_name}%"))
+        .all()
+    )
+
+    return [
+        {
+            "id": req[0].id,
+            "employee_id": req[0].employee_id,
+            "department": req[0].department,
+            "request_type": req[0].request_type,
+            "priority": req[0].priority,
+            "status": req[0].status,
+            "description": req[0].description,
+            "created_at": req[0].created_at,
+            "employee_last_name": req[1],
+            "employee_first_name": req[2],
+        }
+        for req in requests
+    ]
+
+
+def update_request_status(
+    db: Session, request_id: int, new_status: models.RequestStatus
+):
+    try:
+        db_request = (
+            db.query(tables.Request).filter(tables.Request.id == request_id).first()
+        )
+        if not db_request:
+            return None
+
+        # Define valid status transitions
+        valid_transitions = {
+            models.RequestStatus.NEW: [models.RequestStatus.IN_PROGRESS],
+            models.RequestStatus.IN_PROGRESS: [models.RequestStatus.RESOLVED],
+            models.RequestStatus.RESOLVED: [models.RequestStatus.CLOSED],
+            models.RequestStatus.CLOSED: [],
+        }
+
+        current_status = models.RequestStatus(db_request.status)
+        if new_status not in valid_transitions[current_status]:
+            raise ValueError(
+                f"Invalid status transition from {current_status} to {new_status}"
+            )
+
+        db_request.status = new_status
+        db.commit()
+        db.refresh(db_request)
+        return db_request
+
+    except Exception as e:
+        db.rollback()
+        raise e
+
+
+def get_request_details(db: Session, request_id: int):
+    """Get detailed request information including employee details"""
+    request = (
+        db.query(tables.Request)
+        .join(tables.Employee)
+        .filter(tables.Request.id == request_id)
+        .first()
+    )
+
+    if not request:
+        return None
+
+    return {
+        "id": request.id,
+        "employee_last_name": request.employee.last_name,
+        "employee_first_name": request.employee.first_name,
+        "department": request.department,
+        "office": request.employee.office,
+        "request_type": request.request_type,
+        "priority": request.priority,
+        "description": request.description,
+        "status": request.status,
+        "created_at": request.created_at.isoformat(),
+    }
+
+
+from sqlalchemy.orm import Session
+from ..schemas import tables
+from datetime import datetime
+
+
+def get_request_details(db: Session, request_id: int):
+    """Get detailed request information including employee details"""
+    request = (
+        db.query(tables.Request)
+        .join(tables.Employee)
+        .filter(tables.Request.id == request_id)
+        .first()
+    )
+
+    if not request:
+        return None
+
+    return {
+        "id": request.id,
+        "employee_last_name": request.employee.last_name,
+        "employee_first_name": request.employee.first_name,
+        "department": request.department,
+        "office": request.employee.office,
+        "request_type": request.request_type,
+        "priority": request.priority,
+        "description": request.description,
+        "status": request.status,
+        "created_at": request.created_at.isoformat(),
+    }
+
+
+def update_request_status(db: Session, request_id: int, new_status: str):
+    """Update request status with validation"""
+    try:
+        # Define valid status transitions
+        valid_transitions = {
+            "new": ["in_progress"],
+            "in_progress": ["resolved"],
+            "resolved": ["closed"],
+            "closed": [],
+        }
+
+        db_request = (
+            db.query(tables.Request).filter(tables.Request.id == request_id).first()
+        )
+        if not db_request:
+            return None
+
+        current_status = db_request.status
+        if new_status not in valid_transitions.get(current_status, []):
+            raise ValueError(
+                f"Invalid status transition from {current_status} to {new_status}"
+            )
+
+        db_request.status = new_status
+        db.commit()
+        db.refresh(db_request)
+
+        # Get full request details after update
+        return get_request_details(db, request_id)
+
+    except Exception as e:
+        db.rollback()
+        raise e