feat: 持久化资料包导出记录与列表摘要

apps/documents/services.py

@@ -9,7 +9,7 @@ from agent_core.rag.ingest import ingest_document
 from apps.chat.services import create_conversation_for_batch
 from django.core.files.uploadedfile import SimpleUploadedFile
 
-from .models import SubmissionBatch, UploadedDocument
+from .models import ExportedDocument, SubmissionBatch, UploadedDocument
 
 
 def create_uploaded_document(
@@ -198,6 +198,55 @@ def append_documents_to_batch(
     }
 
 
+def create_export_record(
+    *,
+    batch: SubmissionBatch,
+    conversation_id: str,
+    product_name: str,
+    template_name: str,
+    template_version: str,
+    export_mode: str,
+    output_type: str,
+    file_name: str,
+    relative_path: str,
+    download_url: str,
+) -> ExportedDocument:
+    """
+    保存导出文件记录，供资料包与处理历史统一回看。
+    """
+    return ExportedDocument.objects.create(
+        batch=batch,
+        conversation_id=conversation_id,
+        product_name=product_name,
+        template_name=template_name,
+        template_version=template_version,
+        export_mode=export_mode,
+        output_type=output_type,
+        file_name=file_name,
+        relative_path=relative_path,
+        download_url=download_url,
+    )
+
+
+def build_batch_rows(batches) -> list[dict]:
+    """
+    为资料包列表补齐最近导出摘要。
+    """
+    batch_ids = [batch.id for batch in batches]
+    latest_exports = {}
+    for record in ExportedDocument.objects.filter(batch_id__in=batch_ids).order_by("batch_id", "-created_at"):
+        latest_exports.setdefault(record.batch_id, record)
+    rows = []
+    for batch in batches:
+        rows.append(
+            {
+                "batch": batch,
+                "latest_export": latest_exports.get(batch.id),
+            }
+        )
+    return rows
+
+
 def extract_text(document: UploadedDocument) -> str:
     """
     根据文档类型选择合适的文本抽取策略。