Couple more checkout related functions
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af94db4071
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20
db_layer.py
20
db_layer.py
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@ -65,7 +65,7 @@ BEGIN
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END;
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'''
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################################3
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#################################
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# character escaping, etc for sql queries
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#################################
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def _colify(s):
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@ -332,6 +332,24 @@ def get_checkedout_books():
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c.close()
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return books
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def get_onshelf_books():
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'''
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retrieves checked out books. The returned books also have the fields
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uwid: ID of person who signed out the book, and
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date: date when the book was checked out
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'''
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conn = sqlite3.connect(_catalogue_db_file)
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c = conn.cursor()
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query = 'ATTACH "' + _checkout_db_file + '" AS co'
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c.execute(query)
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query = ("SELECT "+",".join(map(_colify,columns))+" FROM "+_book_table+
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" LEFT JOIN co."+_checkout_table+
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" USING (id) WHERE uwid ISNULL;")
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c.execute(query)
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books = [_query_to_book_checkout(b) for b in c]
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c.close()
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return books
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#########################################
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# Database initialization
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#########################################
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