* Type the response data that Google Custom Search API return.
* Exclude some 'letras.mus.br' pages that do not contain lyric.
* Exclude results from Musixmatch as we cannot access their pages.
* Improve parsing of the URL title:
- Handle long URL titles that get truncated (end with ellipsis) for
long searches
- Remove domains starting with 'www'
- Parse the title AND the artist. Previously this would only parse the
title, and fetch lyrics even when the artist did not match.
* Remove now redundant credits cleanup and checks for valid lyrics.
Tidy up 'Google.is_page_candidate' method and remove 'Google.sluggify'
method which was a duplicate of 'slug'.
Since 'GeniusFetchTest' only tested whether the artist name is cleaned
up (the rest of the functionality is patched), remove it and move its
test cases to the 'test_slug' test.
Having removed it I fuond that only the Genius lyrics changed: it had en
extra new line. Thus I defined a function 'collapse_newlines' which now
gets called for the Genius lyrics.
This commit introduces a distance threshold mechanism for the Genius and
Google backends.
- Create a new `SearchBackend` base class with a method `check_match`
that performs checking.
- Start using undocumented `dist_thresh` configuration option for good,
and mention it in the docs. This controls the maximum allowable
distance for matching artist and title names.
These changes aim to improve the accuracy of lyrics matching, especially
when there are slight variations in artist or title names, see #4791.
- Rename method _dedup_genre, since it's only used for
finalizing/polishing existing genres.
- Return separator-delimited string already.
- Decide on not passing "separator" to methods, it's a config
setting available throughout the plugin. Assign to variable where
useful for readability though.
- In the force branch, remove re-assigning keep_genres to empty list.
- Fix a test. Existing genres are "polished" now, which means:
configured title_case is applied.
- Fix/add type hints on all touched and new methods
- Adapt tests to _resolve_genres returning a list with not yet formatted genres.
- Rename and adapt test_count -> test_to_delimited_string. Note that the
new function does not apply whitelist, prefer anything. It just cuts
to count and formats!
- No idea where a missing separator (which is default) could
happen...just set it explicitely.
- Since we now refactored fetch_genre to returning a list we can add
mock multiple fetched gernes easier.
I found that the `/get` endpoint often returns incorrect or unsynced
lyrics, while results returned by the `/search` more accurate options.
Thus I reversed the change in the previous commit to prioritize
searching first.
Adjust the base URL to perform a '/search' instead of attempting to
'/get' specific lyrics where we're unlikely to find lyrics for the
specific combination of album, artist, track names and the duration (see
https://lrclib.net/docs).
Since we receive an array of matching lyrics candidates, rank them by
their duration similarity to the item's duration, and whether they
contain synced lyrics.
Add explicit checks for lyrics texts fetched from the tested sources.
- Introduced `LyricsPage` class to represent lyrics pages for integrated
tests.
- Configured expected lyrics for each of the URLs that are being
fetched.
- Consolidated integrated tests in a new `TestLyricsSources` class.
- Mocked Google Search API to return the lyrics page under test.
Since at least one Backend requires album` and `duration` arguments
(`LRCLib`), the caller (`LyricsPlugin.fetch_item_lyrics`) must always
provide them.
Since they need to provided, we need to enforce this by defining them as
positional arguments.
Why is this important? I found that integrated `LRCLib` tests have been
passing, but they called `LRCLib.fetch` with values for `artist` and
`title` fields only, while the actual functionality *always* provides
values for `album` and `duration` fields too.
When I adjusted the test to provide values for the missing fields,
I found that it failed. This makes sense: Lib `album` and `duration`
filters are strict on LRCLib, so I was not surprised the lyrics could
not be found.
Thus I adjusted `LRCLib` backend implementation to only filter by each
of these fields when their values are truthy.
Modified `search_pairs` function in `lyrics.py` to:
* Firstly strip each of `artist`, `artist_sort` and `title` fields
* Only generate alternatives if both `artist` and `title` are not empty
* Ensure that `artist_sort` is not empty and not equal to artist (ignoring
case) before appending it to the artists
Extended tests to cover the changes.
- Consolidated multiple test cases into parameterized tests for better
readability and maintainability.
- Simplified assertions by comparing lists of actual and expected
artists/titles.
- Added `unexpected_empty_artist` marker to handle cases which
unexpectedly return an empty artist. This seems to be happen when
`artist_sort` field is empty.
- Replaced unittest.mock with pytest fixtures for better test isolation and readability.
- Simplified test cases by using parameterized tests.
- Added `requests-mock` dependency to `pyproject.toml` and `poetry.lock`.
- Removed redundant helper functions and classes.
In order to include the table name for fields in this query, use the
`field_query` method.
Since `AnyFieldQuery` is just an `OrQuery` under the hood, remove it and
construct `OrQuery` explicitly instead.
Unify query creation logic from
- queryparse.py:construct_query_part,
- Model.field_query,
- DefaultTemplateFunctions._tmpl_unique
to a single implementation under `LibModel.field_query` class method.
This method should be used for query resolution for model fields.
Ubuntu version in GitHub Actions has recently been upgraded to 24.04:
https://github.com/actions/runner-images/issues/10636)
This meant that pandoc was upgraded and it changed the way markdown is
formatted by default.
# Improve release notes formatting / changelog conversion from rst to md
During our last release, we discovered issues with changelog formatting.
This PR improves and fixes several aspects:
## Changes
- Rewrite the changelog conversion logic to be more robust and
maintainable
- Fix indentation issues with nested bullet points
- Improve handling of long section headers
- Order bullet points alphabetically within sections for better
readability
- Use Sphinx `objects.inv` to resolve references and include links to
the documentation in _Markdown_
- Add tests to prevent formatting regressions
- Add pandoc as a dependency for Ubuntu CI builds
- Ensure documentation is built before generating changelog
## Problem
A regression was introduced when adjusting the track matching logic to
use `lapjv` instead of `munkres`. The `lapjv` algorithm returns `-1` for
unmatched items, which wasn't being handled correctly in the matching
logic. This caused incorrect track assignments when importing new music.
## Solution
- Modified the mapping creation to filter out unmatched items (where
index is `-1`)
- Updated test case to properly catch this scenario
These tests depend on certain `track_length_grace` and
`track_length_max` configuration which was set by other tests in this
module.
I discovered this issue when I tried to run
`test_order_works_when_track_names_are_entirely_wrong` test only
- I found that my local configuration was read and the test failed.
I had previously tested the `munkres` -> `lapjv` replacement
extensively, so I was today surprised to find that nothing gets matched
correctly when I tried importing some new tracks.
On the other hand I now remember making a small adjustment in the logic
to make autotagging tests pass which is when I introduced a bug: I did
not realize that `lapjv` returns index '-1' for each unmatched item.
This issue did not get caught by tests because this 'unmatched' item
index '-1' anecdotally ended up pointing to the last (expected) item in
the test making it pass.
This commit adjusts the aforementioned test to catch this issue and
fixes the logic to correctly identify unmatched tracks.
This utilises regex substitution in the substitute plugin. The previous
approach only used regex to match the pattern, then replaced it with a
static string. This change allows more complex substitutions, where the
output depends on the input.
### Example use case
Say we want to keep only the first artist of a multi-artist credit, as
in the following list:
```
Neil Young & Crazy Horse -> Neil Young
Michael Hurley, The Holy Modal Rounders, Jeffrey Frederick & The Clamtones -> Michael Hurley
James Yorkston and the Athletes -> James Yorkston
````
This would previously have required three separate rules, one for each
resulting artist. By using a regex substitution, we can get the desired
behaviour in a single rule:
```yaml
substitute:
^(.*?)(,| &| and).*: \1
```
(Capture the text until the first `,` ` &` or ` and`, then use that
capture group as the output)
### Notes
I've kept the previous behaviour of only applying the first matching
rule, but I'm not 100% sure it's the ideal approach.
I can imagine both cases where you want to apply several rules in
sequence and cases where you want to stop after the first match.
This PR refactors the test codebase by removing redundant functions and
simplifying item and album creation. Key changes include:
- Removed redundant `_item_ident` index tracker from `_common.py`.
- Removed `album` function from `_common.py` replacing it with direct
`library.Album` invocations.
- Removed `generate_album_info` and `generate_track_info` functions,
replacing them directly with `TrackInfo` and `AlbumInfo`.
- Updated `setup.cfg` to exclude test helper files from coverage
reports.
- Adjusted the tests regarding the changes, and simplified
`test_mbsync.py`.
These functions were used to generate mock data for tests but have been
replaced with direct instantiation of AlbumInfo and TrackInfo objects.
This change simplifies the test code and removes unnecessary helper
functions.
- Refactored Tekstowo backend to fetch lyrics directly from song pages.
- Added `encode` method to convert artist and title to their URL format,
where non-alphanumeric characters are replaced with underscores.
- Removed the now redundant search functionality and associated tests.
- Simplified `extract_lyrics` method to directly parse lyrics without
any checks.
Since the `for_artist` keyword has been removed from
`ftintitle.contains_feat`, the unit tests need to be updated.
This includes the deletion of the test cases that test the
`for_artist=True` delimiters.
The previous version of the `plugins.feat_tokens` regular expression
only matched "feat. X" parts if preceded by a space. This caused missed
detections in the `ftintitle.contains_feat` function.
This commit adds unit tests for the updated regex that also matches
"feat. X" parts within parentheses and brackets
The variable in `test_ordered_enum` was flagged for naming issues, and
I noticed that `OrderedEnum` is essentially `enum.IntEnum`.
I guess `OrderedEnum` exists because it was created before
`enum.IntEnum` was made available in Python 3.4. We do not need it
anymore though, so it's now gone.
* Replace `noqa` comments in `assert...` method definitions with
a configuration option to ignore these names.
* Use the `__all__` variable to specify importable items from the
module, replacing `*` imports and `noqa` comments for unused imports.
* Address issues with poorly named variables and methods by renaming
them appropriately.
- Fix imports
- Fix pytest issues
- Do not assign lambda as variable
- Use isinstance instead of type to check type
- Rename ambiguously named variables
- Name custom errors with Error suffix
See my comment under #5406 for context
> The build on win32 is failing to install reflink because it's [only
supported until Python
3.7](https://gitlab.com/rubdos/pyreflink/-/blob/master/setup.py?ref_type=heads).
>
> I will address this in a separate PR and rebase this one accordingly
once the fix is merged.
>
> Note: this issue popped up now because I added a new requests-mock
dependency which invalidated cached dependencies.
As noted by 5bf4e3d92f, MusicBrainz
external IDs (`*_album_id`) were only saved for items and not albums.
This commit addresses that by copying `AlbumInfo` fields to the `Album`,
i.e. what's saved in the DB.
This is similar to how `TrackInfo` fields are copied to `Item` instances
except the copying is done at a different time since we only get an
`Album` much later in the import flow.
A constant `preload_plugin` is used to disable loading the plugin in the
`setUp` initialisation, allowing the plugin to be loaded manually by the
tests.
Also added a cleanup instruction to remove listeners from configured
plugins, and removed this logic from several tests.
A couple of `ConfigTest` would previously fail locally since they
somehow depended on the local environment to work fine. This commmit
decouples them from any environment by setting up patching of the
environment variables properly.
Fixes#5229, is part of #5361 and relates to #5285.
I have to admit thsi was a fairly tough task - I initially assumed that
the problem lies
with how the tests are setup, and that we're probably missing some
`teardown_beets` calls
here and there.
Unfortunately, it was not so simple. I came across several issues that
gave rise to
leftover temporary files:
1. `fetchart`, `artresizer` and `play` handling of temporary files.
These plugins created
isolated temporary files outside of the directories that tests clean up.
You will find
I added a couple of functions (namely `get_module_tempdir`) that force
these plugins to
create files in directories determined by their module names. This way
we can clean up
after them using the new `CleanupModulesMixin`.
2. Tests that ran temporary directories setup twice, running
`_common.TestCase.setUp` and
`test.helper.TestHelper.setup_beets`. Both of these ran `self.temp_dir =
mkdtemp()`,
therefore the directories created by the initial setup persisted since
those have been
overridden and thus unreachable in the teardown. Here, I removed the
`setUp` calls, see
- `test/plugins/test_embedart.py`
- `test/test_importer.py`
- and `test/test_plugins.py` where `setup_beets` was called twice
3. `test/test_config_command.py` attempted to manage the temporary
directory by itself,
where I found that `tearDown` failed to remove the directory for four
tests. Could not
figure out the cause, and found that delegating this task to
`TestHelper` fixed the
issue.
4. Mediafile fixture removal depended on calling
`remove_mediafile_fixtures` method, which
`test/plugins/test_zero.py` failed to do. I made the fixtures to be
created within the
same `temp_dir` directory that gets removed in the teardown, so now they
are taken care
of automatically.
In summary, see the test modules that left files behind:
```
Temp files created by test/__init__.py
Temp files created by test/plugins/__init__.py
Temp files created by test/plugins/lyrics_download_samples.py
Temp files created by test/plugins/test_acousticbrainz.py
Temp files created by test/plugins/test_advancedrewrite.py
Temp files created by test/plugins/test_albumtypes.py
Temp files created by test/plugins/test_art.py
/tmp/tmp11nicahe.jpg
/tmp/tmp1bjmodum.png
/tmp/tmped7nhls4.jpg
/tmp/tmpflnzr9wz.jpg
/tmp/tmpjngkauqs.png
/tmp/tmpkzy9mn6t.jpg
/tmp/tmpph_wmuea.jpg
/tmp/tmps6gk58i_.jpg
/tmp/tmpz2eji_o4.jpg
Temp files created by test/plugins/test_aura.py
Temp files created by test/plugins/test_bareasc.py
/tmp/tmphl3kzhug
/tmp/tmpnh2q6v02
/tmp/tmpppw5qrhz
Temp files created by test/plugins/test_beatport.py
Temp files created by test/plugins/test_bucket.py
Temp files created by test/plugins/test_convert.py
Temp files created by test/plugins/test_discogs.py
Temp files created by test/plugins/test_edit.py
Temp files created by test/plugins/test_embedart.py
/tmp/tmp1ayvqzhx
/tmp/tmp58k6mdfx.jpg
/tmp/tmp64c2lqiv
/tmp/tmp6nar4kr5
/tmp/tmp6u0d5dex
/tmp/tmpacoq7w_f
/tmp/tmpajnr_sxr
/tmp/tmpasj16beh
/tmp/tmpboyaixb5
/tmp/tmpcrmcyt5r
/tmp/tmpdomje5g3
/tmp/tmplu3o6t6g
/tmp/tmpns_xvkns
/tmp/tmpo87o1h6o.jpg
/tmp/tmpqem39h_j
/tmp/tmprlzm18pb
/tmp/tmpt22v4u6x
/tmp/tmptp3rxdgv
Temp files created by test/plugins/test_embyupdate.py
Temp files created by test/plugins/test_export.py
Temp files created by test/plugins/test_fetchart.py
Temp files created by test/plugins/test_filefilter.py
Temp files created by test/plugins/test_ftintitle.py
Temp files created by test/plugins/test_hook.py
Temp files created by test/plugins/test_ihate.py
Temp files created by test/plugins/test_importadded.py
Temp files created by test/plugins/test_importfeeds.py
Temp files created by test/plugins/test_info.py
Temp files created by test/plugins/test_ipfs.py
Temp files created by test/plugins/test_keyfinder.py
Temp files created by test/plugins/test_lastgenre.py
Temp files created by test/plugins/test_limit.py
Temp files created by test/plugins/test_lyrics.py
Temp files created by test/plugins/test_mbsubmit.py
Temp files created by test/plugins/test_mbsync.py
Temp files created by test/plugins/test_mpdstats.py
Temp files created by test/plugins/test_parentwork.py
Temp files created by test/plugins/test_permissions.py
Temp files created by test/plugins/test_player.py
Temp files created by test/plugins/test_playlist.py
Temp files created by test/plugins/test_play.py
/tmp/tmp6ohknmve.m3u
/tmp/tmp8rw2z_j4.m3u
/tmp/tmp9vi27ypx.m3u
/tmp/tmpa_s66jh8.m3u
/tmp/tmpb7h3cn3n.m3u
/tmp/tmpexbmqvry.m3u
/tmp/tmpinbqrt80.m3u
/tmp/tmpql02hax5.m3u
/tmp/tmpvbdzprsf.m3u
/tmp/tmpzipim36x.m3u
Temp files created by test/plugins/test_plexupdate.py
Temp files created by test/plugins/test_plugin_mediafield.py
Temp files created by test/plugins/test_random.py
Temp files created by test/plugins/test_replaygain.py
Temp files created by test/plugins/test_smartplaylist.py
Temp files created by test/plugins/test_spotify.py
Temp files created by test/plugins/test_subsonicupdate.py
Temp files created by test/plugins/test_the.py
Temp files created by test/plugins/test_thumbnails.py
Temp files created by test/plugins/test_types_plugin.py
Temp files created by test/plugins/test_web.py
Temp files created by test/plugins/test_zero.py
/tmp/tmp3ub9xmzy
Temp files created by test/rsrc/beetsplug/test.py
Temp files created by test/rsrc/convert_stub.py
Temp files created by test/testall.py
Temp files created by test/test_art_resize.py
/tmp/tmp3p7p60ih.jpg
/tmp/tmp8exclgit.jpg
/tmp/tmpkrrjsitl.jpg
/tmp/tmpw6n8ee8e.jpg
/tmp/tmpygws_0aw.jpg
Temp files created by test/test_autotag.py
Temp files created by test/test_config_command.py
/tmp/tmp333f0r2j
/tmp/tmphr356z5r
/tmp/tmporp4rag2
/tmp/tmpy7sjqdsw
Temp files created by test/test_datequery.py
Temp files created by test/test_dbcore.py
Temp files created by test/test_files.py
Temp files created by test/test_hidden.py
Temp files created by test/test_importer.py
/tmp/tmp0m363gfb
/tmp/tmp2n3i13mc
/tmp/tmpxk3v304s
Temp files created by test/test_library.py
Temp files created by test/test_logging.py
Temp files created by test/test_m3ufile.py
Temp files created by test/test_mb.py
Temp files created by test/test_metasync.py
Temp files created by test/test_pipeline.py
Temp files created by test/test_plugins.py
/tmp/tmp6pxhx67u
/tmp/tmpb8pqi9ui
/tmp/tmpcx_658g7
/tmp/tmp_giqb9jz
/tmp/tmpgm9xk94_
/tmp/tmpk60l6bt3
/tmp/tmpqoj4la68
/tmp/tmptcdu20rp
/tmp/tmpvr7k5shn
/tmp/tmpwnfnzs91
Temp files created by test/test_query.py
Temp files created by test/test_sort.py
Temp files created by test/test_template.py
Temp files created by test/test_ui_commands.py
/tmp/tmpns2u94w6
Temp files created by test/test_ui_importer.py
Temp files created by test/test_ui_init.py
Temp files created by test/test_ui.py
Temp files created by test/test_util.py
Temp files created by test/test_vfs.py
```
And that's what we have right now:
```
Temp files created by test/__init__.py
Temp files created by test/plugins/__init__.py
Temp files created by test/plugins/lyrics_download_samples.py
Temp files created by test/plugins/test_acousticbrainz.py
Temp files created by test/plugins/test_advancedrewrite.py
Temp files created by test/plugins/test_albumtypes.py
Temp files created by test/plugins/test_art.py
Temp files created by test/plugins/test_aura.py
Temp files created by test/plugins/test_bareasc.py
Temp files created by test/plugins/test_beatport.py
Temp files created by test/plugins/test_bucket.py
Temp files created by test/plugins/test_convert.py
Temp files created by test/plugins/test_discogs.py
Temp files created by test/plugins/test_edit.py
Temp files created by test/plugins/test_embedart.py
Temp files created by test/plugins/test_embyupdate.py
Temp files created by test/plugins/test_export.py
Temp files created by test/plugins/test_fetchart.py
Temp files created by test/plugins/test_filefilter.py
Temp files created by test/plugins/test_ftintitle.py
Temp files created by test/plugins/test_hook.py
Temp files created by test/plugins/test_ihate.py
Temp files created by test/plugins/test_importadded.py
Temp files created by test/plugins/test_importfeeds.py
Temp files created by test/plugins/test_info.py
Temp files created by test/plugins/test_ipfs.py
Temp files created by test/plugins/test_keyfinder.py
Temp files created by test/plugins/test_lastgenre.py
Temp files created by test/plugins/test_limit.py
Temp files created by test/plugins/test_lyrics.py
Temp files created by test/plugins/test_mbsubmit.py
Temp files created by test/plugins/test_mbsync.py
Temp files created by test/plugins/test_mpdstats.py
Temp files created by test/plugins/test_parentwork.py
Temp files created by test/plugins/test_permissions.py
Temp files created by test/plugins/test_player.py
Temp files created by test/plugins/test_playlist.py
Temp files created by test/plugins/test_play.py
Temp files created by test/plugins/test_plexupdate.py
Temp files created by test/plugins/test_plugin_mediafield.py
Temp files created by test/plugins/test_random.py
Temp files created by test/plugins/test_replaygain.py
Temp files created by test/plugins/test_smartplaylist.py
Temp files created by test/plugins/test_spotify.py
Temp files created by test/plugins/test_subsonicupdate.py
Temp files created by test/plugins/test_the.py
Temp files created by test/plugins/test_thumbnails.py
Temp files created by test/plugins/test_types_plugin.py
Temp files created by test/plugins/test_web.py
Temp files created by test/plugins/test_zero.py
Temp files created by test/rsrc/beetsplug/test.py
Temp files created by test/rsrc/convert_stub.py
Temp files created by test/testall.py
Temp files created by test/test_art_resize.py
Temp files created by test/test_autotag.py
Temp files created by test/test_config_command.py
Temp files created by test/test_datequery.py
Temp files created by test/test_dbcore.py
Temp files created by test/test_files.py
Temp files created by test/test_hidden.py
Temp files created by test/test_importer.py
Temp files created by test/test_library.py
Temp files created by test/test_logging.py
Temp files created by test/test_m3ufile.py
Temp files created by test/test_mb.py
Temp files created by test/test_metasync.py
Temp files created by test/test_pipeline.py
Temp files created by test/test_plugins.py
Temp files created by test/test_query.py
Temp files created by test/test_sort.py
Temp files created by test/test_template.py
Temp files created by test/test_ui_commands.py
Temp files created by test/test_ui_importer.py
Temp files created by test/test_ui_init.py
Temp files created by test/test_ui.py
Temp files created by test/test_util.py
Temp files created by test/test_vfs.py
```
Note that the command which provides the output is now available through
`poe`.
Due to some weird race conditions the temporary directories were not
getting torn down for four of the tests. I failed to figure out why, and
I found that using TestHelper to manage the temporary directory somehow
fixes this.
This way they get automatically removed with removal of temp_dir.
After this change `test/plugins/test_zero.py` does not any more leave
any mediafield fixtures hanging around.
And move the definition to a shared module.
The problem was that EmbedartCliTest ran `_common.TestCase.setUp`
method which initialised temporary directory for the tests AND ran
`helper.TestHelper.setup_beets` method which initialised another set of
temporary directories. This meant that the first set of directories
could not be tracked down for the cleanup.
In order to include the table name for fields in this query, use the
`field_query` method.
Since `AnyFieldQuery` is just an `OrQuery` under the hood, remove it and
construct `OrQuery` explicitly instead.
Unify query creation logic from
- queryparse.py:construct_query_part,
- Model.field_query,
- DefaultTemplateFunctions._tmpl_unique
to a single implementation under `LibModel.field_query` class method.
This method should be used for query resolution for model (flex)fields.
Allow filtering item attributes in album queries and vice versa by
merging `flex_attrs` from Album and Item together as `all_flex_attrs`.
This field is only used for filtering and is discarded after.
For a flexible attribute query, replace the `col_name` property with
a function call that extracts that attribute from the `field_attrs`
field introduced in the earlier commit.
Additionally, for boolean, numeric and date queries CAST the value to
NUMERIC SQLite affinity to ensure that our queries like 'flex:1..5' and
'flex:true' continue working fine.
This removes the concept of 'slow query', since every query for any
field now has an SQL clause.
In #4746 I was making a small adjustment in beetsplug/aura.py and found
that the module wasn't tested. So this PR adds some high-level tests to
act a safeguard for any future adjustments.
The docs say:
> The `auto` option uses reflinks when possible and falls back to plain
> copying when necessary.
I've been using this option for a while, and recently discovered that
despite the option, copying fails between two BTRFS filesystems with:
Error: OS/filesystem does not support reflinks. during link of paths /mnt/fs1/file, /mnt/fs2/file
I tracked this down to how the configuration is handled in the importer.
Remove 'NamedQuery' since it is not being used by any queries any more.
This simplifies query parsing logic in 'queryparse.py'. We know that
this logic can only receive 'FieldQuery' thus I adjusted types and
removed the logic that handles other cases.
Effectively, this means that the query parsing logic does not any more
care whether the query is named by the corresponding DB field. Instead,
queries like 'SingletonQuery' and 'PlaylistQuery' are responsible for
translating 'singleton' and 'playlist' to the underlying DB filters.
