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""" Get values for: answer_is_correct and associated answer_score.
Calculates whether an answer_is_correct and its score based on 'answer_type' and
corresponding question. Handles choice (answer_type == 'suggestion') questions
separately from other question types. Each selected choice answer is handled as an
individual answer.
If score depends on the speed of the answer, it is adjusted as follows:
- If the user answers in less than 2 seconds, they receive 100% of the possible points.
- If user answers after that, they receive 50% of the possible points + the remaining
50% scaled by the time limit and time taken to answer [i.e. a minimum of 50% of the
possible points is given to all correct answers]
Example of updated values:
* {'answer_is_correct': False, 'answer_score': 0} (default)
* {'answer_is_correct': True, 'answer_score': 2.0}
"""
for line in self:
answer_is_correct, answer_score = False, 0
if line.answer_type:
# record selected suggested choice answer_score (can be: pos, neg, or 0)
if line.question_id.question_type in ['simple_choice', 'multiple_choice']:
if line.answer_type == 'suggestion' and line.suggested_answer_id:
answer_score = line.suggested_answer_id.answer_score
answer_is_correct = line.suggested_answer_id.is_correct
# for all other scored question cases, record question answer_score (can be: pos or 0)
elif line.question_id.question_type in ['date', 'datetime', 'numerical_box']:
answer = line[f'value_{line.answer_type}']
if line.answer_type == 'numerical_box':
answer = float(answer)
elif line.answer_type == 'date':
answer = fields.Date.from_string(answer)
elif line.answer_type == 'datetime':
answer = fields.Datetime.from_string(answer)
if answer and answer == line.question_id[f'answer_{line.answer_type}']:
answer_is_correct = True
answer_score = line.question_id.answer_score
# Session speed rating
if (
answer_score > 0
and line.user_input_id.survey_id.session_speed_rating
and line.user_input_id.is_session_answer
and line.question_id.is_time_limited
):
max_score_delay = 2
time_limit = line.question_id.time_limit
now = fields.Datetime.now()
seconds_to_answer = (now - line.user_input_id.survey_id.session_question_start_time).total_seconds()
question_remaining_time = time_limit - seconds_to_answer
# if answered within the max_score_delay => leave score as is
if question_remaining_time < 0 or line.question_id != line.user_input_id.survey_id.session_question_id:
answer_score /= 2
elif seconds_to_answer > max_score_delay: # linear decrease in score after 2 sec
score_proportion = (time_limit - seconds_to_answer) / (time_limit - max_score_delay)
answer_score = (answer_score / 2) * (1 + score_proportion)
line.answer_is_correct = answer_is_correct
line.answer_score = answer_score
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