online-judge/judge/performance_points.py
2023-02-20 21:22:29 +00:00

83 lines
3.6 KiB
Python

from collections import namedtuple
from django.conf import settings
from django.db import connection
from judge.models import Submission
from judge.timezone import from_database_time
PP_WEIGHT_TABLE = [pow(settings.DMOJ_PP_STEP, i) for i in range(settings.DMOJ_PP_ENTRIES)]
PPBreakdown = namedtuple('PPBreakdown', 'points weight scaled_points problem_name problem_code '
'sub_id sub_date sub_points sub_total sub_result_class '
'sub_short_status sub_long_status sub_lang')
def get_pp_breakdown(user, start=0, end=settings.DMOJ_PP_ENTRIES):
join_type = 'STRAIGHT_JOIN' if connection.vendor == 'mysql' else 'INNER JOIN'
with connection.cursor() as cursor:
cursor.execute(f"""
SELECT max_points_table.problem_code,
max_points_table.problem_name,
max_points_table.max_points,
judge_submission.id,
judge_submission.date,
judge_submission.case_points,
judge_submission.case_total,
judge_submission.result,
judge_language.short_name,
judge_language.key
FROM (
SELECT judge_problem.id problem_id,
judge_problem.name problem_name,
judge_problem.code problem_code,
MAX(judge_submission.points) AS max_points
FROM judge_problem
INNER JOIN judge_submission ON (judge_problem.id = judge_submission.problem_id)
WHERE (judge_problem.is_public AND
NOT judge_problem.is_organization_private AND
judge_submission.points IS NOT NULL AND
judge_submission.user_id = %s)
GROUP BY judge_problem.id
HAVING MAX(judge_submission.points) > 0.0
) AS max_points_table
{join_type} judge_submission ON (
judge_submission.problem_id = max_points_table.problem_id AND
judge_submission.points = max_points_table.max_points AND
judge_submission.user_id = %s
)
{join_type} judge_language ON (judge_submission.language_id = judge_language.id)
GROUP BY max_points_table.problem_id
ORDER BY max_points DESC, judge_submission.date DESC
LIMIT %s OFFSET %s
""", (user.id, user.id, end - start + 1, start))
data = cursor.fetchall()
breakdown = []
for weight, contrib in zip(PP_WEIGHT_TABLE[start:end], data):
code, name, points, id, date, case_points, case_total, result, lang_short_name, lang_key = contrib
# Replicates a lot of the logic usually done on Submission objects
lang_short_display_name = lang_short_name or lang_key
result_class = Submission.result_class_from_code(result, case_points, case_total)
long_status = Submission.USER_DISPLAY_CODES.get(result, '')
breakdown.append(PPBreakdown(
points=points,
weight=weight * 100,
scaled_points=points * weight,
problem_name=name,
problem_code=code,
sub_id=id,
sub_date=from_database_time(date),
sub_points=case_points,
sub_total=case_total,
sub_short_status=result,
sub_long_status=long_status,
sub_result_class=result_class,
sub_lang=lang_short_display_name,
))
has_more = end < min(len(PP_WEIGHT_TABLE), start + len(data))
return breakdown, has_more