53 lines
2.2 KiB
Python
53 lines
2.2 KiB
Python
from typing import AsyncGenerator
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import strawberry
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from channels.db import database_sync_to_async
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from strawberry.types import Info
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from core.graphql.pubsub import pubsub
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from core.graphql.types.project import ProjectType
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from core.graphql.utils import _extract_id
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from core.models.project import Project
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@strawberry.type
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class Subscription:
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@strawberry.subscription(description="Subscribe to project creation events")
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async def project_created(self, info: Info) -> AsyncGenerator[ProjectType, None]:
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user = info.context.user
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if not user or not user.is_authenticated:
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raise PermissionError("Authentication required")
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async with pubsub.subscribe("project_created") as subscriber:
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async for payload in subscriber:
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project_id = await _extract_id(payload)
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try:
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instance = await database_sync_to_async(Project.objects.get)(pk=project_id)
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except Project.DoesNotExist:
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continue
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yield instance
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@strawberry.subscription(description="Subscribe to project updates")
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async def project_updated(self, info: Info) -> AsyncGenerator[ProjectType, None]:
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user = info.context.user
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if not user or not user.is_authenticated:
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raise PermissionError("Authentication required")
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async with pubsub.subscribe("project_updated") as subscriber:
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async for payload in subscriber:
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project_id = await _extract_id(payload)
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try:
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instance = await database_sync_to_async(Project.objects.get)(pk=project_id)
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except Project.DoesNotExist:
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continue
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yield instance
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@strawberry.subscription(description="Subscribe to project deletion events")
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async def project_deleted(self, info: Info) -> AsyncGenerator[strawberry.ID, None]:
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user = info.context.user
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if not user or not user.is_authenticated:
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raise PermissionError("Authentication required")
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async with pubsub.subscribe("project_deleted") as subscriber:
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async for payload in subscriber:
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project_id = await _extract_id(payload)
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yield strawberry.ID(project_id)
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