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Add option to update existing documents when indexing (#285)

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Tanay Soni 2020-08-04 08:54:09 +02:00 committed by GitHub
parent 723921475f
commit 6a103252ef
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1 changed files with 11 additions and 3 deletions
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14
haystack/database/elasticsearch.py
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@ -33,7 +33,8 @@ class ElasticsearchDocumentStore(BaseDocumentStore):
scheme: str = "http",
ca_certs: bool = False,
verify_certs: bool = True,
create_index: bool = True
create_index: bool = True,
update_existing_documents: bool = False,
):
"""
A DocumentStore using Elasticsearch to store and query the documents for our search.
@ -60,6 +61,10 @@ class ElasticsearchDocumentStore(BaseDocumentStore):
:param ca_certs: Root certificates for SSL
:param verify_certs: Whether to be strict about ca certificates
:param create_index: Whether to try creating a new index (If the index of that name is already existing, we will just continue in any case)
:param update_existing_documents: Whether to update any existing documents with the same ID when adding
documents. When set as True, any document with an existing ID gets updated.
If set to False, an error is raised if the document ID of the document being
added already exists.
"""
self.client = Elasticsearch(hosts=[{"host": host, "port": port}], http_auth=(username, password),
scheme=scheme, ca_certs=ca_certs, verify_certs=verify_certs)
@ -85,6 +90,7 @@ class ElasticsearchDocumentStore(BaseDocumentStore):
self._create_label_index(label_index)
self.label_index = label_index
self.update_existing_documents = update_existing_documents
def _create_document_index(self, index_name):
if self.custom_mapping:
@ -145,6 +151,8 @@ class ElasticsearchDocumentStore(BaseDocumentStore):
"""
Indexes documents for later queries in Elasticsearch.
When using explicit document IDs, any existing document with the same ID gets updated.
:param documents: a list of Python dictionaries or a list of Haystack Document objects.
For documents as dictionaries, the format is {"text": "<the-actual-text>"}.
Optionally: Include meta data via {"text": "<the-actual-text>",
@ -169,7 +177,7 @@ class ElasticsearchDocumentStore(BaseDocumentStore):
for doc in documents_objects:
_doc = {
"_op_type": "create",
"_op_type": "index" if self.update_existing_documents else "create",
"_index": index,
**doc.to_dict()
} # type: Dict[str, Any]
@ -200,7 +208,7 @@ class ElasticsearchDocumentStore(BaseDocumentStore):
labels_to_index = []
for label in label_objects:
_label = {
"_op_type": "create",
"_op_type": "index" if self.update_existing_documents else "create",
"_index": index,
**label.to_dict()
} # type: Dict[str, Any]