how to check for existence of a metadata plugin tag in item_fields section of the inline plugin ? #2406
Comments
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The inline plugin sets all the values as Python local variables. So you can use any technique to check whether a given variable name exists in scope, like so: http://stackoverflow.com/questions/843277/how-do-i-check-if-a-variable-exists |
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well I tried 3 things, none behave like the ifdef
should the variable be de-registered somewhat or is it something I should take care of in my custom item_fields ? format_item: $my_format %ifdef{tonal,$tonal,'no'} $my_acousticbrainz $my_abz_local $my_abz_global
item_fields:
my_acousticbrainz: |
try:
return u'--{}--'.format(tonal)
except NameError:
return u'exception'
my_abz_local: |
if 'tonal' in locals():
return u'--{}--'.format(tonal)
else:
return u'locals?'
my_abz_global: |
if 'tonal' in globals():
return u'--{}--'.format(tonal)
else:
return u'globals?'
my_format: u'{:02d}/{:02d}--{:-<20.20}--{:-<10.10}--{:-<20.20}--{:-<10.10}\n-------{:3.0f} bpm--'.format(track, tracktotal, album, albumartist, title, genre, bpm) |
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Sorry, I don't understand from that output what's going on here. Maybe you can cook up instructions to reproduce the problem from scratch locally? |
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I'm aware of the Given that, the following format item displays the tonal with the ifdef and each of the 3 subsequent custom formats I wrote ($my_acousticbrainz $my_abz_local $my_abz_global) is an attempt to "replicate" ifdef using python code in the spirit of your comment
The correct custom format output should be "equal" to the ifdef output format_item: $track/$tracktotal $album - $albumartist %ifdef{tonal,$tonal,'no'} $my_acousticbrainz $my_abz_local $my_abz_global
item_fields:
my_acousticbrainz: |
try:
tonal
except NameError:
return u'exception'
else:
return u'--{}--'.format(tonal)
my_abz_local: |
if 'tonal' in locals():
return u'--{}--'.format(tonal)
else:
return u'no locals'
my_abz_global: |
if 'tonal' in globals():
return u'--{}--'.format(tonal)
else:
return u'no globals'Now I have 2 Ennio Morricone albums, one has the tonal infos for its tracks, the other has none. The output is the following Looking at that output :
the Is it an expected behaviour ? |
As detailed here: #2406 (comment) In a *function-style* definition, we didn't properly *un-define* the values for a given item after each function invocation. So when a field wasn't defined, it would get the value for the previously-formatted object instead. It now properly throws a NameError.
Problem
I want to use acousticbrains tags, tonal in particular, in a custom format with the inline plugin, but I fail at checking if the tag exists.
So when the tonal field exists it's ok:
now issue is when it doesn't
I'm aware of the
%ifdef{$tonal,$tonal,'no'}that works well in my config snippet below if I put it straight into theformat_item(the commentedformat_itemline below)Now I'd wish to test for that existence in the
item_fields:section of the inline plugin to format it to my needs, this is where I fail, any idea if that's possible ?Setup
My configuration (output of
beet config) is:The text was updated successfully, but these errors were encountered: