feat: Store the extracted text on documents

This closes #22.

dewy/common/collection_embeddings.py

@@ -270,10 +270,14 @@ async def ingest(self, document_id: int, url: str) -> None:
                 await conn.execute(
                     """
                     UPDATE document
-                    SET ingest_state = 'ingested', ingest_error = NULL
+                    SET
+                      ingest_state = 'ingested',
+                      ingest_error = NULL,
+                      extracted_text = $2
                     WHERE id = $1
                     """,
                     document_id,
+                    extracted.text
                 )
 
     async def _chunk_sentences(self, text: str) -> List[str]:

dewy/documents/models.py

@@ -29,6 +29,14 @@ class Document(BaseModel):
     id: Optional[int] = None
     collection_id: int
 
+    extracted_text: Optional[str] = None
+    """The text that was extracted for this document.
+
+    This is only returned when getting a specific document, not listing documents.
+
+    Will not be set until after the document is ingested.
+    """
+
     url: str
 
     ingest_state: Optional[IngestState] = None

dewy/documents/router.py

@@ -78,7 +78,7 @@ async def get_document(conn: PgConnectionDep, id: PathDocumentId) -> Document:
     # TODO: Test / return not found?
     result = await conn.fetchrow(
         """
-        SELECT id, collection_id, url, ingest_state, ingest_error
+        SELECT id, collection_id, url, ingest_state, ingest_error, extracted_text
         FROM document WHERE id = $1
         """,
         id,

migrations/0002_document_text.sql

@@ -0,0 +1,2 @@
+ALTER TABLE document
+ADD COLUMN extracted_text TEXT;

tests/test_e2e.py

@@ -6,7 +6,7 @@
 from pydantic import TypeAdapter
 
 from dewy.chunks.models import Chunk, RetrieveRequest, RetrieveResponse
-from dewy.documents.models import AddDocumentRequest
+from dewy.documents.models import AddDocumentRequest, Document
 
 SKELETON_OF_THOUGHT_PDF = "https://arxiv.org/pdf/2307.15337.pdf"
 
@@ -46,6 +46,12 @@ async def list_chunks(client, collection: int, document: int):
     ta = TypeAdapter(List[Chunk])
     return ta.validate_json(response.content)
 
+async def get_document(client, document_id: int) -> Document:
+    response = await client.get(f"/api/documents/{document_id}")
+    assert response.status_code == 200
+    assert response
+    return Document.model_validate_json(response.content)
+
 async def retrieve(client, collection: int, query: str) -> RetrieveResponse:
     request = RetrieveRequest(
         collection_id=collection, query=query, include_image_chunks=False
@@ -58,33 +64,41 @@ async def retrieve(client, collection: int, query: str) -> RetrieveResponse:
 
 async def test_e2e_openai_ada002(client):
     collection = await create_collection(client, "openai:text-embedding-ada-002")
-    document = await ingest(client, collection, SKELETON_OF_THOUGHT_PDF)
-    chunks = await list_chunks(client, collection, document)
+    document_id = await ingest(client, collection, SKELETON_OF_THOUGHT_PDF)
+
+    document = await get_document(client, document_id)
+    assert document.extracted_text.startswith("Skeleton-of-Thought")
+
+    chunks = await list_chunks(client, collection, document_id)
     assert len(chunks) > 0
-    assert chunks[0].document_id == document
+    assert chunks[0].document_id == document_id
 
     results = await retrieve(
         client, collection, "outline the steps to using skeleton-of-thought prompting"
     )
     assert len(results.text_results) > 0
     print(results.text_results)
 
-    assert results.text_results[0].document_id == document
+    assert results.text_results[0].document_id == document_id
     assert "skeleton" in results.text_results[0].text.lower()
 
 
 async def test_e2e_hf_bge_small(client):
     collection = await create_collection(client, "hf:BAAI/bge-small-en")
-    document = await ingest(client, collection, SKELETON_OF_THOUGHT_PDF)
-    chunks = await list_chunks(client, collection, document)
+    document_id = await ingest(client, collection, SKELETON_OF_THOUGHT_PDF)
+
+    document = await get_document(client, document_id)
+    assert document.extracted_text.startswith("Skeleton-of-Thought")
+
+    chunks = await list_chunks(client, collection, document_id)
     assert len(chunks) > 0
-    assert chunks[0].document_id == document
+    assert chunks[0].document_id == document_id
 
     results = await retrieve(
         client, collection, "outline the steps to using skeleton-of-thought prompting"
     )
     assert len(results.text_results) > 0
     print(results.text_results)
 
-    assert results.text_results[0].document_id == document
+    assert results.text_results[0].document_id == document_id
     assert "skeleton" in results.text_results[0].text.lower()