Claudio Ortolina
46 lines
1.8 KiB
Markdown
46 lines
1.8 KiB
Markdown
# MusicLibrary
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To start your Phoenix server:
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- Run `mix setup` to install and setup dependencies
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- Start Phoenix endpoint with `mix phx.server` or inside IEx with `iex -S mix phx.server`
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Now you can visit [`localhost:4000`](http://localhost:4000) from your browser.
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Ready to run in production? Please [check our deployment guides](https://hexdocs.pm/phoenix/deployment.html).
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## Learn more
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- Official website: https://www.phoenixframework.org/
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- Guides: https://hexdocs.pm/phoenix/overview.html
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- Docs: https://hexdocs.pm/phoenix
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- Forum: https://elixirforum.com/c/phoenix-forum
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- Source: https://github.com/phoenixframework/phoenix
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## Dev Notes
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### Search
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- SQLite supports full-text search via the built-in FTS5 extension, which is enabled by default and loaded in the Elixir Driver.
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The extension requires building a virtual table that holds the data to be searched. This seems to be akin to a materialized view.
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- To have fuzzy search, another extension needs to be loaded.
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[Exqlite](https://github.com/elixir-sqlite/exqlite?tab=readme-ov-file) recommends using [ExSqlean](https://github.com/mindreframer/ex_sqlean),
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which in turn uses [Sqlean](https://github.com/mindreframer/sqlean), but the extension is NOT part of the ExSQlean set.
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Need to investigate with forking and PR.
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### Queries
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- To get the count of records per genre:
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```
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select genre.value, count(genre.value) as c from records, json_each(records.genres) genre group by genre.value order by c desc;
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```
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- To get the count of records per artist:
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```
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select json_extract(artist.value, '$.name') AS name, count(1) as c from records, json_each(records.artists) artist group by name order by c desc;
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```
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Note that this query would fail to disambiguate artists with the same name - can be fixed by using the artist `musicbrainz_id`.
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