def get(self, ranking_uid):
ranking = Ranking.get_or_none(id=ranking_uid)
if ranking is None:
return {'message': f'Ranking `{uid}` not found.'}, 404
if ranking.user.id != current_user.id:
return {'message': f'Ranking belongs to another user.'}, 409
model = ranking.get_pairwise_model()
comp = model.next_comparison()
item1 = Item.get_or_none(id=UUID(comp[0]))
if item1 is None:
return {'message': f'Item `{comp[0]}` not found'}, 404
item2 = Item.get_or_none(id=UUID(comp[1]))
if item2 is None:
return {'message': f'Item `{comp[1]}` not found'}, 404
items = []
items.append({
'id': item1.id,
'label': item1.label,
'img_url': item1.img_url
})
items.append({
'id': item2.id,
'label': item2.label,
'img_url': item2.img_url
})
return jsonify(comparison=items)
def post(self, ranking_uid):
ranking = Ranking.get_or_none(id=ranking_uid)
if ranking is None:
return {'message': f'Ranking `{uid}` not found'}, 404
parser = reqparse.RequestParser(trim=True, bundle_errors=True)
parser.add_argument('winitem')
parser.add_argument('loseitem')
data = parser.parse_args()
id1 = UUID(data['winitem'])
item1 = Item.get_or_none(id=id1)
if item1 is None:
return {'message': f'Item `{id1}` not found'}, 404
id2 = UUID(data['loseitem'])
item2 = Item.get_or_none(id=id2)
if item2 is None:
return {'message': f'Item `{id2}` not found'}, 404
comp = Comparison.compare(item1, item2, item1.id)
model = ranking.get_pairwise_model()
return jsonify(coeff=str(model.coefficients),
comparison_count=len(ranking.comparisons),
comp=model_to_dict(comp))
