django 条件查询加分页

刚刚学习django，走了一下午的坑，拿出来分享一下，各位大神有什么更好的“条件查询加分页”，望指教

1.view层

#房间信息给条件
def select_room(request):
    return render(request, 'select_room_condition.html')
#查询房间信息
def select_room2(request,pagenum):
    condition = request.GET.get("condition")
    mess = request.GET.get("mess")
    request.session["condition"]=condition
    request.session["mess"] = mess
    print(condition+"-----------------------------------------")
    if condition=="buildId_id":
        try:
            rooms=RPMS_room.objects.filter(buildId_id=mess)
            pagi = Paginator(rooms, 3)
            page = pagi.page(pagenum)
            return render(request, 'select_room.html',{'rooms':page})
        except:
            return render(request, 'select_room_condition.html',{'flag':"信息输入有误"})
    if condition=="roomName":
        try:
            rooms=RPMS_room.objects.filter(roomName=mess)
            pagi = Paginator(rooms, 3)
            page = pagi.page(pagenum)
            return render(request, 'select_room.html',{'rooms':page})
        except:
            return render(request, 'select_room_condition.html',{'flag':"信息输入有误"})
    if condition=="roomDate":
        try:
            rooms=RPMS_room.objects.filter(roomDate=mess)
            pagi = Paginator(rooms, 3)
            page = pagi.page(pagenum)
            return render(request, 'select_room.html',{'rooms':page})
        except:
            return render(request, 'select_room_condition.html',{'flag':"信息输入有误"})
    if condition=="roomType":
        try:
            rooms=RPMS_room.objects.filter(roomType=mess)
            pagi = Paginator(rooms, 3)
            page = pagi.page(pagenum)
            return render(request, 'select_room.html',{'rooms':page})
        except:
            return render(request, 'select_room_condition.html',{'flag':"信息输入有误"})
    if condition=="roomUse":
        try:
            rooms=RPMS_room.objects.filter(roomUse=mess)
            pagi = Paginator(rooms, 3)
            page = pagi.page(pagenum)
            return render(request, 'select_room.html',{'rooms':page})
        except:
            return render(request, 'select_room_condition.html',{'flag':"信息输入有误"})
    if condition=="roomArea":
        try:
            rooms=RPMS_room.objects.filter(roomArea=mess)
            pagi = Paginator(rooms, 3)
            page = pagi.page(pagenum)
            return render(request, 'select_room.html',{'rooms':page})
        except:
            return render(request, 'select_room_condition.html',{'flag':"信息输入有误"})
    if condition=="roomPercent":
        try:
            rooms=RPMS_room.objects.filter(roomPercent=mess)
            pagi = Paginator(rooms, 3)
            page = pagi.page(pagenum)
            return render(request, 'select_room.html',{'rooms':page})
        except:
            return render(request, 'select_room_condition.html',{'flag':"信息输入有误"})
    if condition=="roomDelete":
        try:
            rooms=RPMS_room.objects.filter(roomDelete=mess)
            pagi = Paginator(rooms, 3)
            page = pagi.page(pagenum)
            return render(request, 'select_room.html',{'rooms':page})
        except:
            return render(request, 'select_room_condition.html',{'flag':"信息输入有误"})
    return render(request, 'select_room_condition.html', {'flag': "信息输入有误"})

2.url层

urlpatterns = [
    url(r'^select_room/$', views.select_room),
    url(r'^select_room2/(\d)/', views.select_room2),
]

3.给条件的html

{% load static from staticfiles%}
<style>
#b{
    position: relative;
    background-color: #68C3BE;
    width: 100%;
    height: 515px;
  }
[name="condition"]{
    position: absolute;
    top: 70px;
    left: 380px;
    width: 150px;
    height: 40px;
    text-align: center;
    font-size: 15px;
}
[name="mess"]{
    position: absolute;
    top: 70px;
    left: 560px;
    width: 200px;
    height: 38px;
    font-size: 20px;
}
[type="submit"]{
    position: absolute;
    top: 70px;
    left: 800px;
    width: 100px;
    height: 40px;
    background-color: springgreen;
    border: 1px solid springgreen;
}
    #b1{
        position: absolute;
        top: 80px;
        left: 180px;
        width: 150px;
        height: 50px;
        font-size: 20px;
        }
    #b2{
        height: 45px;
        width: 380px;
        position: absolute;
        font-size: 20px;
        color: red;
        left: 380px;
        top: 120px;
    }
</style>


<div id="b">
    <form action="/RPMSapp/select_room2/1/" method="get">
        <span id="b1">请输入查询条件:</span>
        <select name="condition">
            <option >--请选择条件--</option>
            <option value="buildId_id">楼栋ID号</option>
            <option value="roomName">房间名</option>
            <option value="roomDate">入住时间</option>
            <option value="roomType">房型</option>
            <option value="roomUse">用途</option>
            <option value="roomArea">建筑面积</option>
            <option value="roomPercent">得房率</option>
            <option value="roomDelete">删除状态码</option>
        </select>&emsp;&emsp;
        <input type="text" placeholder="请输入信息" name="mess">
        <input type="submit" value="查询">
        <span id="b2">{{flag}}</span>
    </form>
</div>

4.查询信息显示的html

{% load static from staticfiles%}
<style>
#b{
    position: relative;
    background-color: #68C3BE;
    width: 100%;
    height: 515px;
  }
#b1{
    background-color: white;
    position: absolute;
   left: 210px;
  }
td a{
   color: red;
}
</style>

<div id="b">
   <table border="1px" id="b1" cellpadding="0px" cellspacing="0px">
      <tr height="80px">
         <th colspan="9" style="font-size: 30px;">本小区楼栋信息</th>
      </tr>
      <tr height="50px">
         <td width="100px" style="text-align: center">房间ID号</td>
         <td width="100px" style="text-align: center">楼栋ID号</td>
         <td width="100px" style="text-align: center">房间名</td>
            <td width="100px" style="text-align: center">入住时间</td>
            <td width="100px" style="text-align: center">房型</td>
            <td width="100px" style="text-align: center">用途</td>
            <td width="100px" style="text-align: center">建筑面积</td>
         <td width="100px" style="text-align: center">得房率</td>
            <td width="100px" style="text-align: center">删除状态码</td>
      </tr>
            {% for room in rooms %}
      <tr height="50px">
         <td width="100px" style="text-align: center;">
            {{room.roomId}}
         </td>
         <td width="100px" style="text-align: center;">
            {{room.buildId_id}}
         </td>
         <td width="100px" style="text-align: center;">
            {{room.roomName}}
         </td>
         <td width="100px" style="text-align: center;">
            {{room.roomDate}}
         </td>
         <td width="100px" style="text-align: center;">
            {{room.roomType}}
         </td>
         <td width="100px" style="text-align: center;">
            {{room.roomUse}}
         </td>
         <td width="100px" style="text-align: center;">
            {{room.roomArea}}
         </td>
         <td width="100px" style="text-align: center;">
            {{room.roomPercent}}
         </td>
         <td width="100px" style="text-align: center;">
            {{room.roomDelete}}
         </td>
      </tr>
         {% endfor %}
      <tr height="50px">
         <td colspan="3" style="text-align: center;">
            {% if rooms.has_previous %}
               <a href="/RPMSapp/select_room2/{{rooms.previous_page_number}}/?condition={{request.session.condition}}&mess={{request.session.mess}}">上一页</a>
            {% else %}
               <span>上一页</span>
            {% endif %}
         </td>
         <td colspan="3" style="text-align: center;">
            {% for i in rooms.paginator.page_range %}
               {% if i == rooms.number %}
                  <span>{{i}}</span>
               {% else %}
                  <a href="/RPMSapp/select_room2/{{i}}/?condition={{request.session.condition}}&mess={{request.session.mess}}">{{i}}</a>
               {% endif %}
            {% endfor %}
         </td>
         <td colspan="3" style="text-align: center;">
                {% if rooms.has_next %}
               <a href="/RPMSapp/select_room2/{{rooms.next_page_number}}/?condition={{request.session.condition}}&mess={{request.session.mess}}">下一页</a>
            {% else %}
               <span>下一页</span>
            {% endif %}
         </td>
      </tr>
   </table>
</div>
注意： 第4部分，上一页下一页的a标签再拼接时，千万不要用"/"结尾，否则出错