feat(dataframe): as_blob(fmt) — Tabelle als Blob-Asset (RFC 0004, Option C)#75
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…ion C) DataFrame.as_blob(fmt="parquet"|"csv"|"arrow"|"feather") rendert die lebende Tabelle in einem gewählten Format zu einem bytes-Content-Blob. Damit erbt die Tabelle indirekt alle Blob-Faehigkeiten (Hash/verify/size/write/open/Sidecar) ueber Komposition statt Vererbung — strikt additiv, ohne to_dict-Bruch. - _BLOB_FORMATS-Registry: fmt -> (builder, filetype, mime_type) - Name/Description von der Tabelle geerbt; mime_type gesetzt; update_checksum ausgefuehrt, sodass blob.verify() sofort funktioniert - Unbekanntes fmt -> ValueError - RFC 0004 Status: Option B + C implementiert tests/test_sclass_dataframe_as_blob.py: parquet/csv/arrow/feather, checksum/verify, parquet-Roundtrip, name-override, unsupported-format. dataframe.py 368/368 100%.
Not up to standards ⛔🔴 Issues
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| Category | Results |
|---|---|
| UnusedCode | 1 medium 1 minor |
| BestPractice | 2 medium 1 minor |
| ErrorProne | 3 high |
| Security | 1 medium 25 high |
| CodeStyle | 51 minor |
| Complexity | 15 medium |
🟢 Metrics 438 complexity · 5 duplication
Metric Results Complexity 438 Duplication 5
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Was
DataFrame.as_blob(fmt="parquet"|"csv"|"arrow"|"feather") -> Blob— die lebendeTabelle wird in einem gewählten Format zu einem
bytes-Content-Blobgerendert. Komposition statt Vererbung (RFC 0004, Option C): eine Tabelle
ist kein einzelner Blob, kann aber on-demand als binäres Asset ausgegeben werden.
Mehrwert
Über den Blob erbt die Tabelle indirekt alle Blob-Fähigkeiten in einem
gewählten Format:
sha256/size/verify,write(uri)/open(), Sidecar._BLOB_FORMATS-Registry:fmt -> (builder, filetype, mime_type)mime_typegesetzt;update_checksumausgeführt →
blob.verify()funktioniert sofortfmt→ValueErrorTests / CI
tests/test_sclass_dataframe_as_blob.py(7): default-parquet, checksum/verify,parquet-Round-Trip, csv, arrow+feather, name-override, unsupported-format.
Kanonische CI: 549 passed, 7 skipped,
dataframe.py368/368 100 %,TOTAL 100 %,
mkdocs build --strictgrün.Kompatibilität
Strikt additiv: keine Änderung an
to_dict/from_dict, keine Basisklasse, keinebestehenden Artefakte betroffen. Schließt RFC 0004 (Option B + C umgesetzt).