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2846a93998
### What problem does this PR solve? Fixes #14196 ## Problem When using DeepDOC to parse large PDFs (over 1000 pages), the parser silently truncated processing at 300 pages due to a hardcoded default `page_to=299` in `RAGFlowPdfParser.__images__()`. This caused: - **Errors** on pages beyond the limit - **Poor image quality** as the parser attempted to compensate with missing page data - **Inconsistent chunk splitting** between full PDF imports and partial imports Additionally, the codebase scattered magic numbers (`299`, `600`, `10000`, `100000`, `100000000`, `10000000000`, `10**9`) across 22 files as sentinel values for "parse all pages", making future maintenance error-prone. ## Root Cause ```python # deepdoc/parser/pdf_parser.py (before) def __images__(self, fnm, zoomin=3, page_from=0, page_to=299, callback=None): # Only the first 300 pages were rendered; everything beyond was silently dropped ``` While most callers in `rag/app/*.py` correctly passed `to_page=100000`, the base class `RAGFlowPdfParser.__call__()` and `parse_into_bboxes()` invoked `__images__` **without** forwarding `page_from`/`page_to`, falling back to the restrictive default of 299. ## Solution ### 1. Define constants in `common/constants.py` ```python MAXIMUM_PAGE_NUMBER = 100000 # Used by the parsing layer MAXIMUM_TASK_PAGE_NUMBER = MAXIMUM_PAGE_NUMBER * 1000 # Used by the task/DB layer ``` ### 2. Replace all hardcoded sentinel values | Layer | Files Changed | Old Values | New Value | |---|---|---|---| | **Deepdoc parsers** | `pdf_parser.py`, `mineru_parser.py`, `docling_parser.py`, `opendataloader_parser.py`, `paddleocr_parser.py`, `docx_parser.py` | `299`, `600`, `10**9`, `100000000` | `MAXIMUM_PAGE_NUMBER` | | **Chunk parsers** | `naive.py`, `book.py`, `qa.py`, `one.py`, `manual.py`, `paper.py`, `presentation.py`, `laws.py`, `resume.py`, `email.py`, `table.py` | `100000`, `10000`, `10000000000` | `MAXIMUM_PAGE_NUMBER` | | **Task/DB layer** | `db_models.py`, `task_service.py`, `document_service.py`, `file_service.py` | `100000000` | `MAXIMUM_TASK_PAGE_NUMBER` | ### 3. Fix `parse_into_bboxes()` missing parameters Added `from_page`/`to_page` parameters to `parse_into_bboxes()` so that the `rag/flow/parser/parser.py` DeepDOC path no longer falls back to the restrictive default. ## Files Changed (22) - `common/constants.py` - `deepdoc/parser/pdf_parser.py` - `deepdoc/parser/mineru_parser.py` - `deepdoc/parser/docling_parser.py` - `deepdoc/parser/opendataloader_parser.py` - `deepdoc/parser/paddleocr_parser.py` - `deepdoc/parser/docx_parser.py` - `rag/app/naive.py` - `rag/app/book.py` - `rag/app/qa.py` - `rag/app/one.py` - `rag/app/manual.py` - `rag/app/paper.py` - `rag/app/presentation.py` - `rag/app/laws.py` - `rag/app/resume.py` - `rag/app/email.py` - `rag/app/table.py` - `api/db/db_models.py` - `api/db/services/task_service.py` - `api/db/services/document_service.py` - `api/db/services/file_service.py` ### Type of change - [x] Bug Fix (non-breaking change which fixes an issue) - [x] Refactoring --------- Signed-off-by: noob <yixiao121314@outlook.com>