zycandClaude Opus 4.8
a749be5837
把独立生图从「请求内同步出图」改成异步任务,彻底根治整站 502: - 后端 enqueue_standalone_images:Web 请求只建任务+预留额度(秒级),慢 ARK 出图派发给 Celery worker(generate_standalone_image_task)。Web 层不再被 ~30s 请求占住 worker, 健康探针不会被饿死 → 整站 502 从根上消失。 - run_standalone_image_task:worker 内单张出图,成功落库扣费/失败退费,幂等(只处理 RESERVED, 重复投递不二次扣费)。 - 提交成功后浏览器关闭/断网,worker 仍把图生成并落库,重开素材库即可见(异步天然抗断连)。 - 视图 POST 返回 202+任务列表,新增 GET ?ids= 轮询状态并带回成图;前端 submit+poll。 - count 上限 4→12,与 UI 一致。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
77 lines
3.3 KiB
Python
77 lines
3.3 KiB
Python
from rest_framework import status
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from rest_framework.response import Response
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from rest_framework.views import APIView
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from rest_framework.viewsets import ReadOnlyModelViewSet
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from apps.assets.serializers import AssetSerializer
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from apps.common.api import TeamScopedViewSetMixin, get_current_team
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from apps.common.celery_health import require_worker
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from .models import AITask, ModelConfig
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from .serializers import AITaskSerializer, ModelConfigSerializer
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from .services import enqueue_standalone_images
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class GenerateImageView(APIView):
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"""独立生图(不绑项目)· 图片创作/模特图/平台套图共用 —— **异步**。
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POST /api/ai/generate-image/ 提交生成,秒级返回 RESERVED 任务列表(慢出图交给 worker)。
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GET /api/ai/generate-image/?ids=… 轮询这些任务的状态;成功的任务带回成图 asset。
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"""
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def post(self, request):
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require_worker() # 异步出图依赖 worker 兜底执行,没 worker 直接拒绝(否则任务永远 RESERVED)
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prompt = str(request.data.get("prompt") or "").strip()
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if not prompt:
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return Response({"detail": "prompt 不能为空"}, status=status.HTTP_400_BAD_REQUEST)
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mode = str(request.data.get("mode") or "image")
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try:
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count = int(request.data.get("count") or 1)
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except (TypeError, ValueError):
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count = 1
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team = get_current_team(request.user)
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try:
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tasks = enqueue_standalone_images(team=team, user=request.user, prompt=prompt, mode=mode, count=count)
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except ValueError as exc: # 无可用模型 / 余额不足等,立即反馈
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return Response({"detail": str(exc)}, status=status.HTTP_400_BAD_REQUEST)
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return Response(
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{"tasks": [{"id": str(t.id), "status": t.status} for t in tasks]},
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status=status.HTTP_202_ACCEPTED,
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)
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def get(self, request):
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team = get_current_team(request.user)
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ids = [s for s in str(request.query_params.get("ids") or "").split(",") if s]
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if not ids:
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return Response({"tasks": []})
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tasks = AITask.objects.filter(team=team, id__in=ids).prefetch_related(
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"generated_assets", "generated_assets__files"
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)
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data = [
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{
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"id": str(t.id),
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"status": t.status,
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"error_message": t.error_message,
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"assets": AssetSerializer(
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[a for a in t.generated_assets.all() if not a.is_deleted], many=True
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).data,
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}
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for t in tasks
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]
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return Response({"tasks": data})
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class AITaskViewSet(TeamScopedViewSetMixin, ReadOnlyModelViewSet):
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queryset = AITask.objects.select_related("team", "project", "model_config", "model_config__provider").all()
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serializer_class = AITaskSerializer
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search_fields = ["idempotency_key", "provider_task_id", "project__name"]
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ordering_fields = ["created_at", "updated_at", "completed_at"]
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class ModelConfigViewSet(ReadOnlyModelViewSet):
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queryset = ModelConfig.objects.select_related("provider").filter(status=ModelConfig.Status.ACTIVE)
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serializer_class = ModelConfigSerializer
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search_fields = ["name", "display_name", "capability"]
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ordering_fields = ["created_at", "display_name"]
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