53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
from django.utils import timezone
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from apps.audit.models import OperationAuditLog
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from apps.tickets.models import Ticket, TicketEvent
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class TicketStatusError(ValueError):
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pass
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ALLOWED_TRANSITIONS: dict[str, set[str]] = {
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"pending_info": {"pending", "closed"},
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"pending": {"in_progress", "closed"},
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"in_progress": {"pending_confirm"},
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"pending_confirm": {"resolved", "in_progress", "closed"},
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"resolved": {"closed"},
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"closed": set(),
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}
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def validate_status_transition(from_status: str, to_status: str) -> None:
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if to_status not in ALLOWED_TRANSITIONS.get(from_status, set()):
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raise TicketStatusError(f"Invalid ticket status transition: {from_status} -> {to_status}")
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def transition_ticket(ticket: Ticket, to_status: str, remark: str = "", operator=None) -> Ticket:
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from_status = ticket.status
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validate_status_transition(from_status, to_status)
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ticket.status = to_status
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if to_status == "resolved":
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ticket.resolved_at = timezone.now()
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if to_status == "closed":
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ticket.closed_at = timezone.now()
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ticket.save(update_fields=["status", "resolved_at", "closed_at", "updated_at"])
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TicketEvent.objects.create(
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ticket=ticket,
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event_type="status_change",
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from_value={"status": from_status},
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to_value={"status": to_status},
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operator=operator,
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remark=remark,
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)
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OperationAuditLog.objects.create(
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user=operator,
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module="tickets",
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action="status_transition",
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target_type="ticket",
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target_id=str(ticket.id),
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result="success",
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request_snapshot={"from": from_status, "to": to_status, "remark": remark},
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)
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return ticket
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