[BACK] pb de nouvelle colonne dans la database #303
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RiwsPy
approved these changes
Jul 16, 2025
| ).fetchall() | ||
| existing_cols = {col[0] for col in columns_sql} | ||
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| missing_cols = set(schema.keys()) - existing_cols |
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Tu savais que dict.keys() possède une compatibilité partielle avec les set ?
missing_cols = schema.keys() - existing_cols serait suffisant ici.
| return | ||
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| # Mapping Polars -> SQL | ||
| type_mapping = { |
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Il y a un bout de code qui a l'air de faire l'inverse dans Historisateur.convert_types_for_sql.
Ce dictionnaire pourrait être utile ailleurs dans le code, je le sortirai de la méthode pour en créer une constante.
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| for col in missing_cols: | ||
| pl_type = schema[col] | ||
| sql_type = type_mapping.get(pl_type, "TEXT") | ||
| sql = text(f'ALTER TABLE "{table_name}" ADD COLUMN "{col}" {sql_type};') | ||
| conn.execute(sql) | ||
| conn.commit() |
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C'est bon sur le principe, idéalement il faudrait réduire les appels à la db en concaténant les requêtes pour n'en faire qu'une seule.
Peut-être quelque chose comme ça ?
add_columns = [… for col in missing_cols]
sql = text(f'ALTER TABLE "{table_name}" {", ".join(add_columns)};)
conn.execute(sql)
conn.commit()
RiwsPy
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