Albums

Structure

Albums form a forest: a set of trees where each album has at most one parent album, and roots have no parent. An album's position in the tree is determined solely by its album_id_parent field, which is updated by reparent operations.

Disconnected albums

An album is connected if following its album_id_parent chain eventually reaches None (a root). An album is disconnected if that chain cycles or leads to a deleted album before reaching None.

Disconnected albums are currently not displayed in the app.

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