v2.3.1

Deprecated some MetaTitle methods getSlugSort(), getSlugUnique(), getSerieSlug(), getSerieSlugSort(), getSerieSlugUnique(), getSlugSortWithSerie(), getUniqueFilename(). Now only getSlug(), getSlugSimple(), getSeriesSlug(), getSeriesSlugSimple() are available.

Slug have to be unique, so default slug take some metadata to be unique, like in this example:

An EPUB with title La pâle lumière des ténèbres with main author Pierre Bottero, series A comme Association, volume 1, language fr and published in 1980 will have the slug pale-lumiere-des-tenebres-a-comme-association-01-1980-pierre-bottero-epub-fr.

You can use getSlugSimple() to have a simple slug, like pale-lumiere-des-tenebres.

For series, you can use getSeriesSlug() to have a slug with series name, like a-comme-association-1980-pierre-bottero-epub-fr.

And getSeriesSlugSimple() to have a simple slug with series name, like a-comme-association.