forked from erp-dev/erp
feat: added process_node parameters view for plate order
This commit is contained in:
@@ -8,6 +8,7 @@ from .printing import (
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PrintingJobV2Serializer,
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PrintingJobBatchAdvancePreviewView,
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PrintingJobBatchAdvanceSubmitView,
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PlateOrderByProcessNodeView,
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)
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from .stateflow import BusinessObjectCloneView
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@@ -17,6 +18,7 @@ __all__ = [
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'PrintingJobV2Serializer',
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'PrintingJobBatchAdvancePreviewView',
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'PrintingJobBatchAdvanceSubmitView',
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'PlateOrderByProcessNodeView',
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'BusinessObjectCloneView',
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]
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@@ -2,13 +2,17 @@ import datetime
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from django.utils import timezone
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from django.db import transaction
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from django.db.models import Q, Count, CharField, Prefetch
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from django.db.models.functions import Cast, Coalesce
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from rest_framework import serializers, status, permissions
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from rest_framework.pagination import LimitOffsetPagination
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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 basic_info import models as basic_models
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from printing import models as printing_models
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from api_man.serializers import ProductSerializer
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from stateflow import models as stateflow_models
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class IsPrintingFactory(permissions.BasePermission):
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@@ -360,3 +364,243 @@ class PrintingJobBatchAdvanceSubmitView(APIView):
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'printing_job_ids': [j.id for j in data['jobs']],
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'jobs': job_srz.data,
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})
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class PlateOrderByProcessNodeSerializer(serializers.ModelSerializer):
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"""按流程节点筛选 PlateOrder 的列表序列化（尽量保持轻量）"""
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design_code = serializers.SerializerMethodField()
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customer_name = serializers.CharField(source='customer.name', read_only=True)
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business_object_id = serializers.SerializerMethodField()
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process_parameters = serializers.SerializerMethodField()
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class Meta:
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model = printing_models.PlateOrder
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fields = [
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'id',
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'design_code',
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'customer',
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'customer_name',
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'style_name',
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'urgency_level',
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'is_invalid',
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'business_object_id',
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'process_parameters',
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'created_at',
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'updated_at',
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]
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read_only_fields = fields
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def get_design_code(self, obj: printing_models.PlateOrder) -> str | None:
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return obj.design_code or (str(obj.id) if obj.id else None)
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def get_business_object_id(self, obj: printing_models.PlateOrder) -> int | None:
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return obj.business_object_id
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def get_process_parameters(self, obj: printing_models.PlateOrder) -> list[dict]:
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"""
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返回“订单维度”的工艺参数 key/value（当前 process_node 对应 state 的参数）。
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取值来源：
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- 优先取该订单 business_object 在目标 state 的**最新一次 StateFlowRecord**（可能是已撤销记录）
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对应的 StateLogParameterRecord 汇总（后提交覆盖先提交）。
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- 若从未提交过该 state 的参数：value 为 null（由前端自行用顶层 parameters 的默认值做兜底/占位）
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"""
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keys: list[str] = self.context.get('target_parameter_keys') or []
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target_state_id: int | None = self.context.get('target_state_id')
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if not keys or not target_state_id:
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return [{'key': k, 'value': None} for k in keys]
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bo = getattr(obj, 'business_object', None)
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if not bo:
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return [{'key': k, 'value': None} for k in keys]
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logs = getattr(bo, '_prefetched_target_state_logs', None)
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if logs is None:
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# fallback：极少数情况下未预取
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logs = list(
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bo.state_logs.filter(state_id=target_state_id).order_by('-completed_at', '-id')[:1]
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)
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latest_log = logs[0] if logs else None
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summary: dict = {}
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if latest_log:
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param_records = getattr(latest_log, '_prefetched_parameter_records', None)
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if param_records is None:
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param_records = list(latest_log.parameter_records.all().order_by('created_at', 'id'))
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for rec in param_records:
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summary.update(rec.parameters or {})
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return [{'key': k, 'value': summary.get(k)} for k in keys]
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class PlateOrderByProcessNodeView(APIView):
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"""
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按 process_node_id 查询“当前处于该节点（NEXT 模式：下一个待执行节点）”的 PlateOrder 列表。
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GET /api/v2/plate-orders/by-process-node/
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Query 参数:
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- process_node_id: 必填，ProcessNode.id
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- search: 可选。支持:
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- 纯数字：同时匹配 id 精确 + design_code icontains
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- 非纯数字：design_code icontains
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- ordering: 可选，默认 -created_at，支持: id / created_at / updated_at / design_code
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- limit/offset: 分页（limit 默认 20）
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"""
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permission_classes = [permissions.IsAuthenticated, IsPrintingFactory]
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_ORDERING_FIELDS = {'id', 'created_at', 'updated_at', 'design_code'}
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def get(self, request):
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qp = request.query_params
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process_node_id = qp.get('process_node_id')
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if not process_node_id:
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return Response({'detail': 'process_node_id 为必填参数'}, status=status.HTTP_400_BAD_REQUEST)
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try:
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process_node_id_int = int(process_node_id)
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except (TypeError, ValueError):
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return Response({'detail': 'process_node_id 必须为数字'}, status=status.HTTP_400_BAD_REQUEST)
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try:
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process_node = (
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stateflow_models.ProcessNode.objects
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.select_related('process', 'state')
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.get(id=process_node_id_int)
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)
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except stateflow_models.ProcessNode.DoesNotExist:
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return Response({'detail': 'process_node 不存在'}, status=status.HTTP_404_NOT_FOUND)
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# 目标节点信息
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target_state_id = process_node.state_id
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target_order = process_node.order
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process_id = process_node.process_id
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# 目标节点之前的所有 state_id（distinct，便于计数）
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prev_state_ids = list(
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stateflow_models.ProcessNode.objects
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.filter(process_id=process_id, order__lt=target_order)
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.order_by('order', 'id')
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.values_list('state_id', flat=True)
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.distinct()
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)
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queryset = (
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printing_models.PlateOrder.objects
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.select_related('customer', 'business_object')
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.filter(business_object__isnull=False, business_object__process_id=process_id)
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)
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# NEXT 模式判定：前置节点都已完成（未撤销） + 目标节点尚未完成（未撤销）
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if prev_state_ids:
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queryset = queryset.annotate(
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completed_prev_states=Count(
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'business_object__state_logs__state_id',
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filter=Q(
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business_object__state_logs__is_cancelled=False,
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business_object__state_logs__state_id__in=prev_state_ids,
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),
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distinct=True,
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)
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).filter(completed_prev_states=len(prev_state_ids))
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queryset = queryset.annotate(
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completed_target=Count(
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'business_object__state_logs__id',
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filter=Q(
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business_object__state_logs__is_cancelled=False,
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business_object__state_logs__state_id=target_state_id,
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),
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distinct=True,
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)
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).filter(completed_target=0)
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# search：同时支持主键与 design_code icontains（不新增额外参数）
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search = (qp.get('search') or '').strip()
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if search:
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if search.isdigit():
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try:
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search_id = int(search)
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except (TypeError, ValueError):
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search_id = None
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cond = Q(design_code__icontains=search)
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if search_id is not None:
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cond = cond | Q(id=search_id)
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queryset = queryset.filter(cond)
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else:
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queryset = queryset.filter(design_code__icontains=search)
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# ordering：默认 -created_at
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ordering = (qp.get('ordering') or '-created_at').strip() or '-created_at'
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direction = '-' if ordering.startswith('-') else ''
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field = ordering[1:] if ordering.startswith('-') else ordering
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if field not in self._ORDERING_FIELDS:
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return Response(
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{'detail': f'ordering 不支持: {ordering}（可选: {", ".join(sorted(self._ORDERING_FIELDS))}）'},
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status=status.HTTP_400_BAD_REQUEST,
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)
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# 为 design_code 排序提供兜底：为空时按主键字符串
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if field == 'design_code':
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queryset = queryset.annotate(
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design_code_normalized=Coalesce('design_code', Cast('id', output_field=CharField()))
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).order_by(f'{direction}design_code_normalized', 'id')
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else:
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queryset = queryset.order_by(f'{direction}{field}', 'id')
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# 该节点参数模板（仅 key/value），同时用于 results[*].process_parameters 的 key 集合
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params = list(process_node.state.parameters.order_by('id').values('key', 'value'))
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target_keys = [p['key'] for p in params]
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# 预取：目标 state 的最新日志及其参数记录（用于拼装“订单维度”的参数值，避免 N+1）
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param_records_prefetch = Prefetch(
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'parameter_records',
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queryset=stateflow_models.StateLogParameterRecord.objects.order_by('created_at', 'id'),
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to_attr='_prefetched_parameter_records',
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)
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target_state_logs_qs = (
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stateflow_models.StateFlowRecord.objects
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.filter(state_id=target_state_id)
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.order_by('-completed_at', '-id')
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.prefetch_related(param_records_prefetch)
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)
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queryset = queryset.prefetch_related(
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Prefetch(
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'business_object__state_logs',
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queryset=target_state_logs_qs,
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to_attr='_prefetched_target_state_logs',
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)
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)
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# 分页（limit 默认 20）
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paginator = LimitOffsetPagination()
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paginator.default_limit = 20
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page = paginator.paginate_queryset(queryset, request, view=self)
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results = page if page is not None else list(queryset)
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srz = PlateOrderByProcessNodeSerializer(
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results,
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many=True,
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context={
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'request': request,
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'target_state_id': target_state_id,
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'target_parameter_keys': target_keys,
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},
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)
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return Response({
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'process_node': {
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'id': process_node.id,
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'process_id': process_id,
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'state_id': target_state_id,
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'state_name': process_node.state.name,
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'order': target_order,
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},
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'parameters': params,
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'count': getattr(paginator, 'count', len(results)),
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'next': paginator.get_next_link() if page is not None else None,
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'previous': paginator.get_previous_link() if page is not None else None,
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'results': srz.data,
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})
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