prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Optimize top10 call
  https://github.com/CTFd/CTFd/blob/master/CTFd/scoreboard.py#L125-L127
  
  This code seems pretty wasteful and is likely getting hit fairly often. Optimizing this to be a single database query is likely a good idea. 
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `CTFd/scoreboard.py`
  Content:
  ```
  1 from flask import render_template, jsonify, Blueprint, redirect, url_for, request
  2 from sqlalchemy.sql.expression import union_all
  3 
  4 from CTFd.models import db, Teams, Solves, Awards, Challenges
  5 
  6 from CTFd import utils
  7 
  8 scoreboard = Blueprint('scoreboard', __name__)
  9 
  10 
  11 def get_standings(admin=False, count=None):
  12     scores = db.session.query(
  13         Solves.teamid.label('teamid'),
  14         db.func.sum(Challenges.value).label('score'),
  15         db.func.max(Solves.id).label('id'),
  16         db.func.max(Solves.date).label('date')
  17     ).join(Challenges).group_by(Solves.teamid)
  18 
  19     awards = db.session.query(
  20         Awards.teamid.label('teamid'),
  21         db.func.sum(Awards.value).label('score'),
  22         db.func.max(Awards.id).label('id'),
  23         db.func.max(Awards.date).label('date')
  24     ).group_by(Awards.teamid)
  25 
  26     """
  27     Filter out solves and awards that are before a specific time point.
  28     """
  29     freeze = utils.get_config('freeze')
  30     if not admin and freeze:
  31         scores = scores.filter(Solves.date < utils.unix_time_to_utc(freeze))
  32         awards = awards.filter(Awards.date < utils.unix_time_to_utc(freeze))
  33 
  34     """
  35     Combine awards and solves with a union. They should have the same amount of columns
  36     """
  37     results = union_all(scores, awards).alias('results')
  38 
  39     """
  40     Sum each of the results by the team id to get their score.
  41     """
  42     sumscores = db.session.query(
  43         results.columns.teamid,
  44         db.func.sum(results.columns.score).label('score'),
  45         db.func.max(results.columns.id).label('id'),
  46         db.func.max(results.columns.date).label('date')
  47     ).group_by(results.columns.teamid).subquery()
  48 
  49     """
  50     Admins can see scores for all users but the public cannot see banned users.
  51 
  52     Filters out banned users.
  53     Properly resolves value ties by ID.
  54 
  55     Different databases treat time precision differently so resolve by the row ID instead.
  56     """
  57     if admin:
  58         standings_query = db.session.query(
  59             Teams.id.label('teamid'),
  60             Teams.name.label('name'),
  61             Teams.banned, sumscores.columns.score
  62         )\
  63             .join(sumscores, Teams.id == sumscores.columns.teamid) \
  64             .order_by(sumscores.columns.score.desc(), sumscores.columns.id)
  65     else:
  66         standings_query = db.session.query(
  67             Teams.id.label('teamid'),
  68             Teams.name.label('name'),
  69             sumscores.columns.score
  70         )\
  71             .join(sumscores, Teams.id == sumscores.columns.teamid) \
  72             .filter(Teams.banned == False) \
  73             .order_by(sumscores.columns.score.desc(), sumscores.columns.id)
  74 
  75     """
  76     Only select a certain amount of users if asked.
  77     """
  78     if count is None:
  79         standings = standings_query.all()
  80     else:
  81         standings = standings_query.limit(count).all()
  82     db.session.close()
  83 
  84     return standings
  85 
  86 
  87 @scoreboard.route('/scoreboard')
  88 def scoreboard_view():
  89     if utils.get_config('view_scoreboard_if_authed') and not utils.authed():
  90         return redirect(url_for('auth.login', next=request.path))
  91     if utils.hide_scores():
  92         return render_template('scoreboard.html', errors=['Scores are currently hidden'])
  93     standings = get_standings()
  94     return render_template('scoreboard.html', teams=standings, score_frozen=utils.is_scoreboard_frozen())
  95 
  96 
  97 @scoreboard.route('/scores')
  98 def scores():
  99     json = {'standings': []}
  100     if utils.get_config('view_scoreboard_if_authed') and not utils.authed():
  101         return redirect(url_for('auth.login', next=request.path))
  102     if utils.hide_scores():
  103         return jsonify(json)
  104 
  105     standings = get_standings()
  106 
  107     for i, x in enumerate(standings):
  108         json['standings'].append({'pos': i + 1, 'id': x.teamid, 'team': x.name, 'score': int(x.score)})
  109     return jsonify(json)
  110 
  111 
  112 @scoreboard.route('/top/<int:count>')
  113 def topteams(count):
  114     json = {'places': {}}
  115     if utils.get_config('view_scoreboard_if_authed') and not utils.authed():
  116         return redirect(url_for('auth.login', next=request.path))
  117     if utils.hide_scores():
  118         return jsonify(json)
  119 
  120     if count > 20 or count < 0:
  121         count = 10
  122 
  123     standings = get_standings(count=count)
  124 
  125     for i, team in enumerate(standings):
  126         solves = Solves.query.filter_by(teamid=team.teamid)
  127         awards = Awards.query.filter_by(teamid=team.teamid)
  128 
  129         freeze = utils.get_config('freeze')
  130 
  131         if freeze:
  132             solves = solves.filter(Solves.date < utils.unix_time_to_utc(freeze))
  133             awards = awards.filter(Awards.date < utils.unix_time_to_utc(freeze))
  134 
  135         solves = solves.all()
  136         awards = awards.all()
  137 
  138         json['places'][i + 1] = {
  139             'id': team.teamid,
  140             'name': team.name,
  141             'solves': []
  142         }
  143         for x in solves:
  144             json['places'][i + 1]['solves'].append({
  145                 'chal': x.chalid,
  146                 'team': x.teamid,
  147                 'value': x.chal.value,
  148                 'time': utils.unix_time(x.date)
  149             })
  150         for award in awards:
  151             json['places'][i + 1]['solves'].append({
  152                 'chal': None,
  153                 'team': award.teamid,
  154                 'value': award.value,
  155                 'time': utils.unix_time(award.date)
  156             })
  157         json['places'][i + 1]['solves'] = sorted(json['places'][i + 1]['solves'], key=lambda k: k['time'])
  158     return jsonify(json)
  159
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/CTFd/scoreboard.py b/CTFd/scoreboard.py
  --- a/CTFd/scoreboard.py
  +++ b/CTFd/scoreboard.py
  @@ -122,37 +122,42 @@
   
       standings = get_standings(count=count)
   
  -    for i, team in enumerate(standings):
  -        solves = Solves.query.filter_by(teamid=team.teamid)
  -        awards = Awards.query.filter_by(teamid=team.teamid)
  +    team_ids = [team.teamid for team in standings]
   
  -        freeze = utils.get_config('freeze')
  +    solves = Solves.query.filter(Solves.teamid.in_(team_ids))
  +    awards = Awards.query.filter(Awards.teamid.in_(team_ids))
   
  -        if freeze:
  -            solves = solves.filter(Solves.date < utils.unix_time_to_utc(freeze))
  -            awards = awards.filter(Awards.date < utils.unix_time_to_utc(freeze))
  +    freeze = utils.get_config('freeze')
  +
  +    if freeze:
  +        solves = solves.filter(Solves.date < utils.unix_time_to_utc(freeze))
  +        awards = awards.filter(Awards.date < utils.unix_time_to_utc(freeze))
   
  -        solves = solves.all()
  -        awards = awards.all()
  +    solves = solves.all()
  +    awards = awards.all()
   
  +    for i, team in enumerate(team_ids):
           json['places'][i + 1] = {
  -            'id': team.teamid,
  -            'name': team.name,
  +            'id': standings[i].teamid,
  +            'name': standings[i].name,
               'solves': []
           }
  -        for x in solves:
  -            json['places'][i + 1]['solves'].append({
  -                'chal': x.chalid,
  -                'team': x.teamid,
  -                'value': x.chal.value,
  -                'time': utils.unix_time(x.date)
  -            })
  +        for solve in solves:
  +            if solve.teamid == team:
  +                json['places'][i + 1]['solves'].append({
  +                    'chal': solve.chalid,
  +                    'team': solve.teamid,
  +                    'value': solve.chal.value,
  +                    'time': utils.unix_time(solve.date)
  +                })
           for award in awards:
  -            json['places'][i + 1]['solves'].append({
  -                'chal': None,
  -                'team': award.teamid,
  -                'value': award.value,
  -                'time': utils.unix_time(award.date)
  -            })
  +            if award.teamid == team:
  +                json['places'][i + 1]['solves'].append({
  +                    'chal': None,
  +                    'team': award.teamid,
  +                    'value': award.value,
  +                    'time': utils.unix_time(award.date)
  +                })
           json['places'][i + 1]['solves'] = sorted(json['places'][i + 1]['solves'], key=lambda k: k['time'])
  +
       return jsonify(json)
  
verification_info: {"golden_diff": "diff --git a/CTFd/scoreboard.py b/CTFd/scoreboard.py\n--- a/CTFd/scoreboard.py\n+++ b/CTFd/scoreboard.py\n@@ -122,37 +122,42 @@\n \n     standings = get_standings(count=count)\n \n-    for i, team in enumerate(standings):\n-        solves = Solves.query.filter_by(teamid=team.teamid)\n-        awards = Awards.query.filter_by(teamid=team.teamid)\n+    team_ids = [team.teamid for team in standings]\n \n-        freeze = utils.get_config('freeze')\n+    solves = Solves.query.filter(Solves.teamid.in_(team_ids))\n+    awards = Awards.query.filter(Awards.teamid.in_(team_ids))\n \n-        if freeze:\n-            solves = solves.filter(Solves.date < utils.unix_time_to_utc(freeze))\n-            awards = awards.filter(Awards.date < utils.unix_time_to_utc(freeze))\n+    freeze = utils.get_config('freeze')\n+\n+    if freeze:\n+        solves = solves.filter(Solves.date < utils.unix_time_to_utc(freeze))\n+        awards = awards.filter(Awards.date < utils.unix_time_to_utc(freeze))\n \n-        solves = solves.all()\n-        awards = awards.all()\n+    solves = solves.all()\n+    awards = awards.all()\n \n+    for i, team in enumerate(team_ids):\n         json['places'][i + 1] = {\n-            'id': team.teamid,\n-            'name': team.name,\n+            'id': standings[i].teamid,\n+            'name': standings[i].name,\n             'solves': []\n         }\n-        for x in solves:\n-            json['places'][i + 1]['solves'].append({\n-                'chal': x.chalid,\n-                'team': x.teamid,\n-                'value': x.chal.value,\n-                'time': utils.unix_time(x.date)\n-            })\n+        for solve in solves:\n+            if solve.teamid == team:\n+                json['places'][i + 1]['solves'].append({\n+                    'chal': solve.chalid,\n+                    'team': solve.teamid,\n+                    'value': solve.chal.value,\n+                    'time': utils.unix_time(solve.date)\n+                })\n         for award in awards:\n-            json['places'][i + 1]['solves'].append({\n-                'chal': None,\n-                'team': award.teamid,\n-                'value': award.value,\n-                'time': utils.unix_time(award.date)\n-            })\n+            if award.teamid == team:\n+                json['places'][i + 1]['solves'].append({\n+                    'chal': None,\n+                    'team': award.teamid,\n+                    'value': award.value,\n+                    'time': utils.unix_time(award.date)\n+                })\n         json['places'][i + 1]['solves'] = sorted(json['places'][i + 1]['solves'], key=lambda k: k['time'])\n+\n     return jsonify(json)\n", "issue": "Optimize top10 call\nhttps://github.com/CTFd/CTFd/blob/master/CTFd/scoreboard.py#L125-L127\r\n\r\nThis code seems pretty wasteful and is likely getting hit fairly often. Optimizing this to be a single database query is likely a good idea. \n", "before_files": [{"content": "from flask import render_template, jsonify, Blueprint, redirect, url_for, request\nfrom sqlalchemy.sql.expression import union_all\n\nfrom CTFd.models import db, Teams, Solves, Awards, Challenges\n\nfrom CTFd import utils\n\nscoreboard = Blueprint('scoreboard', __name__)\n\n\ndef get_standings(admin=False, count=None):\n    scores = db.session.query(\n        Solves.teamid.label('teamid'),\n        db.func.sum(Challenges.value).label('score'),\n        db.func.max(Solves.id).label('id'),\n        db.func.max(Solves.date).label('date')\n    ).join(Challenges).group_by(Solves.teamid)\n\n    awards = db.session.query(\n        Awards.teamid.label('teamid'),\n        db.func.sum(Awards.value).label('score'),\n        db.func.max(Awards.id).label('id'),\n        db.func.max(Awards.date).label('date')\n    ).group_by(Awards.teamid)\n\n    \"\"\"\n    Filter out solves and awards that are before a specific time point.\n    \"\"\"\n    freeze = utils.get_config('freeze')\n    if not admin and freeze:\n        scores = scores.filter(Solves.date < utils.unix_time_to_utc(freeze))\n        awards = awards.filter(Awards.date < utils.unix_time_to_utc(freeze))\n\n    \"\"\"\n    Combine awards and solves with a union. They should have the same amount of columns\n    \"\"\"\n    results = union_all(scores, awards).alias('results')\n\n    \"\"\"\n    Sum each of the results by the team id to get their score.\n    \"\"\"\n    sumscores = db.session.query(\n        results.columns.teamid,\n        db.func.sum(results.columns.score).label('score'),\n        db.func.max(results.columns.id).label('id'),\n        db.func.max(results.columns.date).label('date')\n    ).group_by(results.columns.teamid).subquery()\n\n    \"\"\"\n    Admins can see scores for all users but the public cannot see banned users.\n\n    Filters out banned users.\n    Properly resolves value ties by ID.\n\n    Different databases treat time precision differently so resolve by the row ID instead.\n    \"\"\"\n    if admin:\n        standings_query = db.session.query(\n            Teams.id.label('teamid'),\n            Teams.name.label('name'),\n            Teams.banned, sumscores.columns.score\n        )\\\n            .join(sumscores, Teams.id == sumscores.columns.teamid) \\\n            .order_by(sumscores.columns.score.desc(), sumscores.columns.id)\n    else:\n        standings_query = db.session.query(\n            Teams.id.label('teamid'),\n            Teams.name.label('name'),\n            sumscores.columns.score\n        )\\\n            .join(sumscores, Teams.id == sumscores.columns.teamid) \\\n            .filter(Teams.banned == False) \\\n            .order_by(sumscores.columns.score.desc(), sumscores.columns.id)\n\n    \"\"\"\n    Only select a certain amount of users if asked.\n    \"\"\"\n    if count is None:\n        standings = standings_query.all()\n    else:\n        standings = standings_query.limit(count).all()\n    db.session.close()\n\n    return standings\n\n\n@scoreboard.route('/scoreboard')\ndef scoreboard_view():\n    if utils.get_config('view_scoreboard_if_authed') and not utils.authed():\n        return redirect(url_for('auth.login', next=request.path))\n    if utils.hide_scores():\n        return render_template('scoreboard.html', errors=['Scores are currently hidden'])\n    standings = get_standings()\n    return render_template('scoreboard.html', teams=standings, score_frozen=utils.is_scoreboard_frozen())\n\n\n@scoreboard.route('/scores')\ndef scores():\n    json = {'standings': []}\n    if utils.get_config('view_scoreboard_if_authed') and not utils.authed():\n        return redirect(url_for('auth.login', next=request.path))\n    if utils.hide_scores():\n        return jsonify(json)\n\n    standings = get_standings()\n\n    for i, x in enumerate(standings):\n        json['standings'].append({'pos': i + 1, 'id': x.teamid, 'team': x.name, 'score': int(x.score)})\n    return jsonify(json)\n\n\n@scoreboard.route('/top/<int:count>')\ndef topteams(count):\n    json = {'places': {}}\n    if utils.get_config('view_scoreboard_if_authed') and not utils.authed():\n        return redirect(url_for('auth.login', next=request.path))\n    if utils.hide_scores():\n        return jsonify(json)\n\n    if count > 20 or count < 0:\n        count = 10\n\n    standings = get_standings(count=count)\n\n    for i, team in enumerate(standings):\n        solves = Solves.query.filter_by(teamid=team.teamid)\n        awards = Awards.query.filter_by(teamid=team.teamid)\n\n        freeze = utils.get_config('freeze')\n\n        if freeze:\n            solves = solves.filter(Solves.date < utils.unix_time_to_utc(freeze))\n            awards = awards.filter(Awards.date < utils.unix_time_to_utc(freeze))\n\n        solves = solves.all()\n        awards = awards.all()\n\n        json['places'][i + 1] = {\n            'id': team.teamid,\n            'name': team.name,\n            'solves': []\n        }\n        for x in solves:\n            json['places'][i + 1]['solves'].append({\n                'chal': x.chalid,\n                'team': x.teamid,\n                'value': x.chal.value,\n                'time': utils.unix_time(x.date)\n            })\n        for award in awards:\n            json['places'][i + 1]['solves'].append({\n                'chal': None,\n                'team': award.teamid,\n                'value': award.value,\n                'time': utils.unix_time(award.date)\n            })\n        json['places'][i + 1]['solves'] = sorted(json['places'][i + 1]['solves'], key=lambda k: k['time'])\n    return jsonify(json)\n", "path": "CTFd/scoreboard.py"}], "after_files": [{"content": "from flask import render_template, jsonify, Blueprint, redirect, url_for, request\nfrom sqlalchemy.sql.expression import union_all\n\nfrom CTFd.models import db, Teams, Solves, Awards, Challenges\n\nfrom CTFd import utils\n\nscoreboard = Blueprint('scoreboard', __name__)\n\n\ndef get_standings(admin=False, count=None):\n    scores = db.session.query(\n        Solves.teamid.label('teamid'),\n        db.func.sum(Challenges.value).label('score'),\n        db.func.max(Solves.id).label('id'),\n        db.func.max(Solves.date).label('date')\n    ).join(Challenges).group_by(Solves.teamid)\n\n    awards = db.session.query(\n        Awards.teamid.label('teamid'),\n        db.func.sum(Awards.value).label('score'),\n        db.func.max(Awards.id).label('id'),\n        db.func.max(Awards.date).label('date')\n    ).group_by(Awards.teamid)\n\n    \"\"\"\n    Filter out solves and awards that are before a specific time point.\n    \"\"\"\n    freeze = utils.get_config('freeze')\n    if not admin and freeze:\n        scores = scores.filter(Solves.date < utils.unix_time_to_utc(freeze))\n        awards = awards.filter(Awards.date < utils.unix_time_to_utc(freeze))\n\n    \"\"\"\n    Combine awards and solves with a union. They should have the same amount of columns\n    \"\"\"\n    results = union_all(scores, awards).alias('results')\n\n    \"\"\"\n    Sum each of the results by the team id to get their score.\n    \"\"\"\n    sumscores = db.session.query(\n        results.columns.teamid,\n        db.func.sum(results.columns.score).label('score'),\n        db.func.max(results.columns.id).label('id'),\n        db.func.max(results.columns.date).label('date')\n    ).group_by(results.columns.teamid).subquery()\n\n    \"\"\"\n    Admins can see scores for all users but the public cannot see banned users.\n\n    Filters out banned users.\n    Properly resolves value ties by ID.\n\n    Different databases treat time precision differently so resolve by the row ID instead.\n    \"\"\"\n    if admin:\n        standings_query = db.session.query(\n            Teams.id.label('teamid'),\n            Teams.name.label('name'),\n            Teams.banned, sumscores.columns.score\n        )\\\n            .join(sumscores, Teams.id == sumscores.columns.teamid) \\\n            .order_by(sumscores.columns.score.desc(), sumscores.columns.id)\n    else:\n        standings_query = db.session.query(\n            Teams.id.label('teamid'),\n            Teams.name.label('name'),\n            sumscores.columns.score\n        )\\\n            .join(sumscores, Teams.id == sumscores.columns.teamid) \\\n            .filter(Teams.banned == False) \\\n            .order_by(sumscores.columns.score.desc(), sumscores.columns.id)\n\n    \"\"\"\n    Only select a certain amount of users if asked.\n    \"\"\"\n    if count is None:\n        standings = standings_query.all()\n    else:\n        standings = standings_query.limit(count).all()\n    db.session.close()\n\n    return standings\n\n\n@scoreboard.route('/scoreboard')\ndef scoreboard_view():\n    if utils.get_config('view_scoreboard_if_authed') and not utils.authed():\n        return redirect(url_for('auth.login', next=request.path))\n    if utils.hide_scores():\n        return render_template('scoreboard.html', errors=['Scores are currently hidden'])\n    standings = get_standings()\n    return render_template('scoreboard.html', teams=standings, score_frozen=utils.is_scoreboard_frozen())\n\n\n@scoreboard.route('/scores')\ndef scores():\n    json = {'standings': []}\n    if utils.get_config('view_scoreboard_if_authed') and not utils.authed():\n        return redirect(url_for('auth.login', next=request.path))\n    if utils.hide_scores():\n        return jsonify(json)\n\n    standings = get_standings()\n\n    for i, x in enumerate(standings):\n        json['standings'].append({'pos': i + 1, 'id': x.teamid, 'team': x.name, 'score': int(x.score)})\n    return jsonify(json)\n\n\n@scoreboard.route('/top/<int:count>')\ndef topteams(count):\n    json = {'places': {}}\n    if utils.get_config('view_scoreboard_if_authed') and not utils.authed():\n        return redirect(url_for('auth.login', next=request.path))\n    if utils.hide_scores():\n        return jsonify(json)\n\n    if count > 20 or count < 0:\n        count = 10\n\n    standings = get_standings(count=count)\n\n    team_ids = [team.teamid for team in standings]\n\n    solves = Solves.query.filter(Solves.teamid.in_(team_ids))\n    awards = Awards.query.filter(Awards.teamid.in_(team_ids))\n\n    freeze = utils.get_config('freeze')\n\n    if freeze:\n        solves = solves.filter(Solves.date < utils.unix_time_to_utc(freeze))\n        awards = awards.filter(Awards.date < utils.unix_time_to_utc(freeze))\n\n    solves = solves.all()\n    awards = awards.all()\n\n    for i, team in enumerate(team_ids):\n        json['places'][i + 1] = {\n            'id': standings[i].teamid,\n            'name': standings[i].name,\n            'solves': []\n        }\n        for solve in solves:\n            if solve.teamid == team:\n                json['places'][i + 1]['solves'].append({\n                    'chal': solve.chalid,\n                    'team': solve.teamid,\n                    'value': solve.chal.value,\n                    'time': utils.unix_time(solve.date)\n                })\n        for award in awards:\n            if award.teamid == team:\n                json['places'][i + 1]['solves'].append({\n                    'chal': None,\n                    'team': award.teamid,\n                    'value': award.value,\n                    'time': utils.unix_time(award.date)\n                })\n        json['places'][i + 1]['solves'] = sorted(json['places'][i + 1]['solves'], key=lambda k: k['time'])\n\n    return jsonify(json)\n", "path": "CTFd/scoreboard.py"}]}