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34 lines
1.1 KiB
34 lines
1.1 KiB
""" Handle tag requests. """
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from collections import defaultdict
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from flask import jsonify
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from asl_articles import app, db
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from asl_articles.models import Publication, Article
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from asl_articles.utils import decode_tags
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# ---------------------------------------------------------------------
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@app.route( "/tags" )
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def get_tags():
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"""Get all tags."""
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# NOTE: This is pretty inefficient, since an article/publication's tags are munged into one big string
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# and stored in a single column, so we need to manually unpack everything, but we'll see how it goes...
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tags = defaultdict( int )
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def count_tags( query ):
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for row in query:
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if not row[0]:
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continue
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for tag in decode_tags( row[0] ):
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tags[ tag ] = tags[ tag ] + 1
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count_tags( db.session.query( Publication.pub_tags ) )
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count_tags( db.session.query( Article.article_tags ) )
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# sort the results
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tags = sorted( tags.items(),
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key = lambda v: ( -v[1], v[0] ) # sort by # instances, then name
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)
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return jsonify( tags )
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