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Genres and metadata

Aldus normally derives genre labels from the subjects imported with each book. Administrators can override that result for an individual work when the source metadata is incomplete or misleading.

Open the book, choose Manage this work → Details, then find Genres.

  • Match from subjects applies the server-wide matching rules described below.
  • Choose manually lets you select the exact genres for this work. Saving an empty selection intentionally shows no genre tags.

Switch back to Match from subjects and save to remove the override. The book immediately returns to the current server-wide rules.

Open Administration → Genres to see every genre and the phrases that assign it. A phrase matches whole words inside an imported subject. Capitalization and punctuation do not matter.

For example, fantasy matches Fiction, fantasy, general, but war does not match award winners. Singular and plural forms are separate phrases so an unexpected word is never treated as equivalent.

Editing a phrase changes the genre shown on every matching book. It does not modify the source metadata.

The Unmatched imported subjects section lists source phrases that do not currently produce a genre, ordered by the number of affected books.

  1. Select Map to genre beside a subject.
  2. Search for and select the intended genre.
  3. Confirm Map subject.

Aldus adds the exact source subject as a matching phrase. Every book with that phrase updates automatically. If no existing genre fits, choose Create a new genre instead.

Aldus now preserves imported subjects as exact values, including subjects that contain commas. Older databases stored these values in a single compatibility field, where a comma could be part of a subject or a separator. Aldus does not guess at those boundaries.

If an older book is missing from the unmatched-subject list, open Manage this work and refresh its metadata. A successful refresh records exact subject values without replacing metadata that was already saved.