django项目中的ajax分页和条件查询。

Posted 2022-09-22 nmsghgnv

1，路由

#主页面路由
re_path(‘article/article_list/‘, article.article_list,name=‘article/article_list/‘),
#分页面路由
re_path(‘article/list_part/‘, article.list_part,name=‘article/list_part/‘),

2，前端主页面html

#引用的js
<script src="/static/jQuery-1.8.2.min.js"></script>

#查询表单
<form id="searchlist">
    % csrf_token %
    <ul class="seachform">

        <li><label>标题</label><input name="article_title" type="text" class="scinput"/></li>
        <li><label>是否推荐</label>
            <div class="vocation">
                <select class="select3" name="article_is_recommend">
                    <option value="">请选择</option>
                    <option value="1">推荐</option>
                    <option value="0">不推荐</option>
                </select>
            </div>
        </li>
        <li><label>是否审核</label>
            <div class="vocation">
                <select class="select3" name="article_auditor">
                    <option value="">请选择</option>
                    <option value="1">未审核</option>
                    <option value="0">审核通过</option>
                </select>
            </div>
        </li>

        <li><label>作者</label>
            <div class="vocation">
                <select class="select3" name="member_id">
                    <option value="">请选择</option>
                    % for v in member_list %

                    <option value=" v.member_id "> v.member_name </option>
                    % endfor %
                </select>
            </div>
        </li>


        <li><label>&nbsp;</label><input name="" type="button" class="scbtn" value="查询" id="search"/></li>
        <li><label>&nbsp;</label><input type="button" value="删除所选文章" id="del_list" class="scbtn"></li>

    </ul>

</form>

#文章表
<form onsubmit="return false" id="del">
    <table class="tablelist">
        <thead>
        <tr>
            <th><input name="checkall" type="checkbox" value="" id="checkAll">全选</th>
            <th>文章序号<i class="sort"><img src="/static/back/images/px.gif"/></i></th>
            <th>文章标题</th>
            #
            <th>文章简介</th>
            #
            <th>添加时间</th>
            <th>阅读量</th>
            <th>点赞量</th>
            <th>是否推荐</th>
            <th>作者</th>

            <th>是否审核</th>
            <th>操作</th>
        </tr>
        </thead>

        % csrf_token %
        <tbody class="maina">


        </tbody>


    </table>

</form>

3，前端主页面js。

<script>
    //首次页面加载，通过ajax拿到数据，放在maina容器里
    show_list();

    function show_list() 
        $.post("% url ‘back:article/list_part/‘ %", $(‘#searchlist‘).serialize(), function (data) 
            $(".maina").html(data);
        );
    

    //点击分页，点击a连接：
    $(document).on(‘click‘, ‘.pagin a‘, function () 
        $.post(this.href, $(‘#searchlist‘).serialize(), function (data) 
            $(".maina").html(data);
        );
        return false;//让a连接失效
    );


    //点击删除
    $(document).on(‘click‘, ‘.del‘, function () 
        _this = this;
        layer.confirm(‘您确定要删除吗？‘, 
            btn: [‘确定‘, ‘取消‘]
        , function () 
            id = $(_this).parent().data("id");
            $.post("% url ‘back:article/list_delete/‘ %", 
                "id": id,
                "csrfmiddlewaretoken": " csrf_token "
            , function (data) 
                if (data.status == 1) 
                    layer.msg(data.info, function () 
                        $(_this).parent().parent().remove();
                    );

                 else 
                    layer.msg(data.info);
                
            , ‘json‘);
        , function () 
        );
        return false;//让a连接失效
    );

    //点击查询按钮
    $(document).on(‘click‘, ‘#search‘, function () 
        show_list();
    );

    #    设为推荐#
    
    $(document).on(‘click‘, ‘.recommend‘, function () 
        __this = this;
        layer.confirm(‘特别推荐显示前三篇文章，是否修改数据？‘, 
            btn: [‘确定‘, ‘取消‘]
        , function () 
            vals = $(__this).data("val");
            $.post("/back/article/article_is_recommend/", 
                "id": vals,
                "csrfmiddlewaretoken": " csrf_token "
            , function (data) 
                if (data.status == 0) 
                    layer.msg(data.info, function () 

                    );

                 else 
                    layer.msg(data.info);
                
            , ‘json‘);
        , function () 
        );
        #return false;//让a连接失效#
        
        );
    #    审核#
    
    $(document).on(‘click‘, ‘#go‘, function () 
        layer.msg(‘点击查看文章后返回文章列表确认是否通过审核.‘)
    );
    $(document).on(‘click‘, ‘.auditor‘, function () 
        __this = this;
        layer.confirm(‘是否确认修改文章状态？‘, 
            btn: [‘确定‘, ‘取消‘]
        , function () 
            valuse = $(__this).data("auditor");
            $.post("/back/article/article_auditor/", 
                "id": valuse,
                "csrfmiddlewaretoken": " csrf_token "
            , function (data) 
                if (data.status == 0) 
                    layer.msg(data.info, function () 

                    );

                 else 
                    layer.msg(data.info);
                
            , ‘json‘);
        , function () 
        );
        #return false;//让a连接失效#
        
        );

    #    批量删除#
    
    #    全选全不选#
    
    $(document).on(‘click‘, ‘input[name="checkall"]‘, function () 
        $(‘input[name="chk[]"]‘).prop(‘checked‘, $(‘input[name="checkall"]‘).prop(‘checked‘))
    );
    $(document).on(‘click‘, ‘input[name="chk[]"]‘, function () 
        $(‘input[name="checkall"]‘).prop(‘checked‘, !$(‘input[name="chk[]"]:not(:checked)‘).length)
    );
    $(document).on(‘click‘, ‘#del_list‘, function () 
        layer.confirm(‘是否确认删除所选文章？‘, 
            btn: [‘确定‘, ‘取消‘]
        , function () 
            $.post(‘/back/article/article_del/‘, $(‘#del‘).serialize(), function (data) 
                if (data[‘status‘] == 0) 
                    layer.msg(data[‘info‘])
                 else 
                    layer.msg(data[‘info‘])
                
            , ‘json‘)
        )
    )
</script>

4，主页面后台方法。

# 文章列表
def article_list(request):
    member_list = Member.objects.all()
    return render(request,‘article/article_list.html‘,locals())

5，前端分页面html。

% for v in articles_list %
    <tr>
        <td><input name="chk[]" type="checkbox" value=" v.article_id "></td>
        <td> forloop.counter </td><!--编号-->
        <td> v.article_title </td>
        <td> v.article_addtime </td>
        <td> v.article_clicknum </td>
        <td> v.article_praise_num </td>
        <td>
            % if v.article_is_recommend == 1 %
                推荐&nbsp;&nbsp;
                <a href="javascript:;" data-val=" v.article_id " style="color: #440044;" class="recommend">
                    >>设为不推荐</a>
            % else %
                不推荐&nbsp;&nbsp;
                <a href="javascript:;" data-val=" v.article_id " style="color: #440044;" class="recommend">
                    >>设为推荐</a>
            % endif %
        </td>
        <td> v.member.member_name </td>
        <td>
            % if not v.article_auditor %
                审核通过
                &nbsp;&nbsp;&nbsp;&nbsp;
                <a href="javascript:;" style="color: purple;" data-auditor=" v.article_id " class="auditor">
                    >>屏蔽此文章</a>
            % else %
                <a href="javascript:;" style="color: #0b2e13;" id="go">去审核</a>
                &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                <a href="javascript:;" style="color: purple;" data-auditor=" v.article_id " class="auditor">
                    >>通过审核</a>
            % endif %
        </td>
        <td data-id=" v.article_id "><a href="/blog/single-post/ v.article_id /" class="tablelink">查看</a> <a
                href="javascript:;" class="tablelink del"> 删除</a></td>
    </tr>
% endfor %
<tr>
    <td colspan="10">
        <div class="pagin">
            <div class="message">共<i class="blue"> num </i>条记录，当前显示第&nbsp;<i
                    class="blue"> currentPage &nbsp;</i>页
            </div>
            <ul class="paginList">
                % if articles_list.has_previous %
                    <li class="paginItem"><a
                            href="/back/article/list_part/?page= articles_list.previous_page_number "><span
                            class="pagepre"></span></a></li>
                % endif %
                % for num in pageRange %
                    <li class="paginItem % if num == currentPage %current% endif %"><a
                            href="/back/article/list_part/?page= num "> num </a></li>
                % endfor %
                % if articles_list.has_next %
                    <li class="paginItem"><a
                            href="/back/article/list_part/?page= articles_list.next_page_number "><span
                            class="pagenxt"></span></a></li>
                % endif %
            </ul>
        </div>
        </div>


    </td>

</tr>

6，分页面后台方法。

#用到的封装查找函数
from blog.utils import function
# 文章part
def list_part(request):
    where=function.getWhere(request)
    articles_list=Article.objects.filter(**where).all().order_by(‘-article_id‘)
    num=len(articles_list)
    currentPage=int(request.GET.get(‘page‘,1)) #获取当前在第几页
    paginator=Paginator(articles_list,10)

    if paginator.num_pages>11:
        if currentPage-5<1:
            pageRange=range(1,11)
        elif currentPage+5>paginator.num_pages:
            pageRange = range(currentPage-5, paginator.num_pages+1)
        else:
            pageRange = range(currentPage - 5,currentPage+5)
    else:
        pageRange = range(1,paginator.num_pages+1)

    try:
        articles_list=paginator.page(currentPage)
    except PageNotAnInteger:
        articles_list = paginator.page(1)
    except EmptyPage:
        articles_list = paginator.page(paginator.num_pages)
    return render(request,‘article/article_list_part.html‘,locals())

7，分页面中用到的封装函数

# 文章查找
def getWhere(request):
    where = dict()
    article_title=request.POST.get(‘article_title‘,‘‘)
    article_is_recommend = request.POST.get(‘article_is_recommend‘, ‘‘)
    member_id = request.POST.get(‘member_id‘, ‘‘)
    article_auditor = request.POST.get(‘article_auditor‘,‘‘)
    if article_title:
        where[‘article_title__icontains‘]=article_title
    if article_is_recommend!=‘‘:
        where[‘article_is_recommend‘] = article_is_recommend
    if member_id:
        where[‘member‘] = member_id
    if article_auditor !=‘‘:
        where[‘article_auditor‘] = article_auditor
    print(where)
    return where

8，页面效果。

 

 done。