dify

dify/api/tasks/disable_segments_from_index_task.py

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+import logging
+import time
+
+import click
+from celery import shared_task
+from sqlalchemy import select
+
+from core.rag.index_processor.index_processor_factory import IndexProcessorFactory
+from extensions.ext_database import db
+from extensions.ext_redis import redis_client
+from models.dataset import Dataset, DocumentSegment
+from models.dataset import Document as DatasetDocument
+
+logger = logging.getLogger(__name__)
+
+
+@shared_task(queue="dataset")
+def disable_segments_from_index_task(segment_ids: list, dataset_id: str, document_id: str):
+    """
+    Async disable segments from index
+    :param segment_ids: list of segment ids
+    :param dataset_id: dataset id
+    :param document_id: document id
+
+    Usage: disable_segments_from_index_task.delay(segment_ids, dataset_id, document_id)
+    """
+    start_at = time.perf_counter()
+
+    dataset = db.session.query(Dataset).where(Dataset.id == dataset_id).first()
+    if not dataset:
+        logger.info(click.style(f"Dataset {dataset_id} not found, pass.", fg="cyan"))
+        db.session.close()
+        return
+
+    dataset_document = db.session.query(DatasetDocument).where(DatasetDocument.id == document_id).first()
+
+    if not dataset_document:
+        logger.info(click.style(f"Document {document_id} not found, pass.", fg="cyan"))
+        db.session.close()
+        return
+    if not dataset_document.enabled or dataset_document.archived or dataset_document.indexing_status != "completed":
+        logger.info(click.style(f"Document {document_id} status is invalid, pass.", fg="cyan"))
+        db.session.close()
+        return
+    # sync index processor
+    index_processor = IndexProcessorFactory(dataset_document.doc_form).init_index_processor()
+
+    segments = db.session.scalars(
+        select(DocumentSegment).where(
+            DocumentSegment.id.in_(segment_ids),
+            DocumentSegment.dataset_id == dataset_id,
+            DocumentSegment.document_id == document_id,
+        )
+    ).all()
+
+    if not segments:
+        db.session.close()
+        return
+
+    try:
+        index_node_ids = [segment.index_node_id for segment in segments]
+        index_processor.clean(dataset, index_node_ids, with_keywords=True, delete_child_chunks=False)
+
+        end_at = time.perf_counter()
+        logger.info(click.style(f"Segments removed from index latency: {end_at - start_at}", fg="green"))
+    except Exception:
+        # update segment error msg
+        db.session.query(DocumentSegment).where(
+            DocumentSegment.id.in_(segment_ids),
+            DocumentSegment.dataset_id == dataset_id,
+            DocumentSegment.document_id == document_id,
+        ).update(
+            {
+                "disabled_at": None,
+                "disabled_by": None,
+                "enabled": True,
+            }
+        )
+        db.session.commit()
+    finally:
+        for segment in segments:
+            indexing_cache_key = f"segment_{segment.id}_indexing"
+            redis_client.delete(indexing_cache_key)
+        db.session.close()