mirror of
https://github.com/QingdaoU/OnlineJudge.git
synced 2025-11-04 14:49:58 +08:00
增加了比赛排名页面的分页功能
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a8ba7f9326
commit
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@ -14,7 +14,7 @@ from django.conf import settings
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from rest_framework.views import APIView
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from utils.shortcuts import (serializer_invalid_response, error_response,
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success_response, paginate, error_page)
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success_response, paginate, error_page, paginate_data)
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from account.models import SUPER_ADMIN, User
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from account.decorators import login_required
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from group.models import Group
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@ -398,9 +398,26 @@ def contest_rank_page(request, contest_id):
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r.set(cache_key, json.dumps([dict(item) for item in rank]))
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else:
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rank = json.loads(rank)
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try:
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paging_rank = paginate_data(request, rank, None)
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if request.GET.get("paging", None):
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rank = paging_rank["results"]
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else:
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rank = paging_rank
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except Exception as e:
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return error_page(request, e.message)
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if request.GET.get("paging", None):
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paging_info = paging_rank
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paging_info["offset"] = paging_rank["page_size"] * (int(paging_rank["current_page"]) - 1)
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else:
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paging_info = {"previous_page": None, "next_page": None, "count": 0, "total_page": 0, "offset": 0}
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return render(request, "oj/contest/contest_rank.html",
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{"rank": rank, "contest": contest,
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"contest_problems": contest_problems,
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"paging_info": paging_info,
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"auto_refresh": request.GET.get("auto_refresh", None) == "true",
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"show_real_name": request.GET.get("show_real_name", None) == "true",})
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@ -15,7 +15,7 @@
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<a href="/contest/{{ contest.id }}/submissions/">提交</a>
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</li>
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<li role="presentation">
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<a href="/contest/{{ contest.id }}/rank/">排名</a>
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<a href="/contest/{{ contest.id }}/rank/?paging=true&page=1&page_size=40">排名</a>
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</li>
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</ul>
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{% include "oj/contest/_contest_header.html" %}
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@ -21,7 +21,7 @@
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<a href="/contest/{{ contest.id }}/submissions/">提交</a>
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</li>
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<li role="presentation">
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<a href="/contest/{{ contest.id }}/rank/">排名</a>
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<a href="/contest/{{ contest.id }}/rank/?paging=true&page=1&page_size=40">排名</a>
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</li>
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</ul>
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@ -17,7 +17,7 @@
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<a href="/contest/{{ contest.id }}/submissions/">提交</a>
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</li>
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<li role="presentation" class="active">
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<a href="/contest/{{ contest.id }}/rank/">排名</a>
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<a href="/contest/{{ contest.id }}/rank/?paging=true&page=1&page_size=40">排名</a>
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</li>
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</ul>
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@ -48,7 +48,7 @@
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<tbody class="rank">
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{% for item in rank %}
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<tr>
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<th scope="row">{{ forloop.counter }}</th>
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<th scope="row">{{ forloop.counter|add:paging_info.offset}}</th>
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<td>
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<a href="/contest/{{ contest.id }}/submissions/?user_id={{ item.user__id }}">
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{{ item.user__username }}
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@ -69,8 +69,25 @@
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</tbody>
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</table>
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<input type="checkbox" id="auto-refresh" {% if auto_refresh %}checked{% endif %}
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onchange="if(this.checked){location.href='?auto_refresh=true'}else{location.href=location.href.split('?')[0]}">
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onchange="if(this.checked){location.href=location.href + '&auto_refresh=true'}else{location.href=location.href=location.href.replace('&auto_refresh=true', '')}">
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自动刷新
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<nav>
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<ul class="pager">
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{% if paging_info.previous_page %}
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<li class="previous">
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<a href="/contest/{{ contest.id }}/rank/?paging=true&page={{ paging_info.previous_page }}&page_size={{ paging_info.page_size }}&auto_refresh={% if auto_refresh %}true{% endif %}">
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<span aria-hidden="true">←</span> 上一页
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</a></li>
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{% endif %}
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{% if paging_info.next_page %}
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<li class="next">
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<a href="/contest/{{ contest.id }}/rank/?paging=true&page={{ paging_info.next_page }}&page_size={{ paging_info.page_size }}&auto_refresh={% if auto_refresh %}true{% endif %}">
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下一页 <span aria-hidden="true">→</span>
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</a></li>
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{% endif %}
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</ul>
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</nav>
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{% else %}
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<p>还没有结果</p>
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{% endif %}
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@ -16,7 +16,7 @@
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<a href="/contest/{{ contest.id }}/submissions/">提交</a>
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</li>
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<li role="presentation">
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<a href="/contest/{{ contest.id }}/rank/">排名</a>
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<a href="/contest/{{ contest.id }}/rank/?paging=true&page=1&page_size=40">排名</a>
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</li>
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{% endif %}
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</ul>
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@ -19,7 +19,7 @@
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<a href="/contest/{{ contest.id }}/submissions/">提交</a>
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</li>
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<li role="presentation">
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<a href="/contest/{{ contest.id }}/rank/">排名</a>
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<a href="/contest/{{ contest.id }}/rank/?paging=true&page=1&page_size=40">排名</a>
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</li>
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</ul>
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</div>
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@ -26,7 +26,7 @@ def success_response(data):
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return Response(data={"code": 0, "data": data})
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def paginate(request, query_set, object_serializer):
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def paginate_data(request, query_set, object_serializer):
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"""
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用于分页的函数
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如果 url 里面不含有paging=true,那么将返回全部数据。类似
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@ -39,38 +39,26 @@ def paginate(request, query_set, object_serializer):
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如果 url 中有 paging=true 的参数,
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然后还需要读取其余的两个参数,page=[int],需要的页码,p
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age_size=[int],一页的数据条数
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参数错误的时候,返回{"code": 1, "data": u"参数错误"}
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返回的数据格式
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{
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"code": 0,
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"data": {
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"previous_page": null,
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"results": [
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{
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"username": "1111111",
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"password": "123456"
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}
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],
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"next_page": 2
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}
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}
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:param query_set 数据库查询结果
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:param object_serializer: 序列化单个object的serializer
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:return response
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"""
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need_paginate = request.GET.get("paging", None)
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# 如果请求的参数里面没有paging=true的话 就返回全部数据
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if need_paginate != "true":
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return success_response(data=object_serializer(query_set, many=True).data)
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if object_serializer:
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return object_serializer(query_set, many=True).data
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else:
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return query_set
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page_size = request.GET.get("page_size", None)
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if not page_size:
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return error_response(u"参数错误")
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raise ValueError("Error parameter page_size")
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try:
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page_size = int(page_size)
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except Exception:
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return error_response(u"参数错误")
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raise ValueError("Error parameter page_size")
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paginator = Paginator(query_set, page_size)
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page = request.GET.get("page", None)
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@ -78,11 +66,17 @@ def paginate(request, query_set, object_serializer):
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try:
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current_page = paginator.page(page)
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except Exception:
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return error_response(u"参数错误")
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raise ValueError("Error parameter current_page")
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if object_serializer:
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results = object_serializer(current_page, many=True).data
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else:
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results = current_page
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data = {"results": object_serializer(current_page, many=True).data,
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data = {"results": results,
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"previous_page": None,
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"next_page": None,
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"page_size": page_size,
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"current_page": page,
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"count": paginator.count,
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"total_page": paginator.num_pages}
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@ -96,6 +90,14 @@ def paginate(request, query_set, object_serializer):
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except Exception:
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pass
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return data
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def paginate(request, query_set, object_serializer=None):
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try:
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data= paginate_data(request, query_set, object_serializer)
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except Exception:
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return error_response(u"参数错误")
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return success_response(data)
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