6-crm项目-kingadmin，列表页---分页

展示客户列表页面--------分页

分页的逻辑
分页记得要带上条件，

########

class BaseAdmin(object):
    ...
    list_per_page = 20 --->这是基类
    ...

class CustomerAdmin(BaseAdmin):
    ...
    list_per_page = 5   ---->如果要改在这里改
    ...

django官网paginationg使用说明

 

 对应的view

@login_required
def display_table_objs(request,app_name,table_name):

    print("-->",app_name,table_name)  # 这是通过url取到的，
    #models_module = importlib.import_module('%s.models'%(app_name))
    #model_obj = getattr(models_module,table_name)
    admin_class = king_admin.enabled_admins[app_name][table_name]
    #admin_class = king_admin.enabled_admins[crm][userprofile]

    if request.method == "POST": #action 来了

        print(request.POST)
        selected_ids = request.POST.get("selected_ids")
        action = request.POST.get("action")
        if selected_ids:
            selected_objs = admin_class.model.objects.filter(id__in=selected_ids.split(','))
        else:
            raise KeyError("No object selected.")
        if hasattr(admin_class,action):
            action_func = getattr(admin_class,action)
            request._admin_action = action
            return action_func(admin_class,request,selected_objs)

    #object_list = admin_class.model.objects.all()
    object_list,filter_condtions = table_filter(request,admin_class) #过滤后的结果

    object_list = table_search(request,admin_class,object_list)  # 查询后的结果

    object_list,orderby_key = table_sort(request, admin_class, object_list) #排序后的结果
    print("orderby key ", orderby_key)
    paginator = Paginator(object_list, admin_class.list_per_page)  # 分页

    page = request.GET.get('page')
    try:
        query_sets = paginator.page(page)
    except PageNotAnInteger:
        # If page is not an integer, deliver first page.
        query_sets = paginator.page(1)
    except EmptyPage:
        # If page is out of range (e.g. 9999), deliver last page of results.
        query_sets = paginator.page(paginator.num_pages)

    return render(request,"king_admin/table_objs.html",{"admin_class":admin_class,
                                                        "query_sets":query_sets,
                                                        "filter_condtions":filter_condtions,
                                                        "orderby_key":orderby_key,
                                                        "previous_orderby": request.GET.get("o",''),
                                                        "search_text":request.GET.get('_q','')})

对应的html

 <ul class="pagination">
                  {% if query_sets.has_previous %}
                        <li class=""><a href="?page={{ query_sets.previous_page_number }}">上页</a></li>
                  {% endif %}
{#                   <li class="active"><a>{{ query_sets.number }}</a></li>#}

{#                  {% for loop_counter in query_sets.paginator.page_range %}#}
{#                        {% render_page_ele  loop_counter query_sets filter_condtions%}#}
{#                  {% endfor %}#}

                  {% build_paginators query_sets   filter_condtions  previous_orderby search_text%}

                  {% if query_sets.has_next %}
                        <li class=""><a href="?page={{ query_sets.next_page_number }}">下页</a></li>
                  {% endif %}


{#                <li class="disabled"><a href="#">&laquo;</a></li>#}
{#                <li class="active"><a href="#">1 <span class="sr-only">(current)</span></a></li>#}
{#                #}
              </ul>

对应的tag

@register.simple_tag
def build_paginators(query_sets,filter_condtions,previous_orderby,search_text):
    '''返回整个分页元素'''
    page_btns = ''
    filters = ''
    for k,v in filter_condtions.items():
        filters += "&%s=%s" %(k,v)


    added_dot_ele = False #---->这是页码多的时候是否要显示点...
    for page_num in query_sets.paginator.page_range:
        if page_num < 3 or page_num > query_sets.paginator.num_pages -2 
                or abs(query_sets.number - page_num) <= 2: #代表最前2页或最后2页 #abs判断前后1页
            ele_class = ""
            if query_sets.number == page_num:
                added_dot_ele = False
                ele_class = "active"
            page_btns += '''<li class="%s"><a href="?page=%s%s&o=%s&_q=%s">%s</a></li>''' % (
            ele_class, page_num, filters,previous_orderby, search_text,page_num)
        # elif abs(query_sets.number - page_num) <= 1: #判断前后1页
        #     ele_class = ""
        #     if query_sets.number == page_num:
        #         added_dot_ele = False
        #         ele_class = "active"
        #     page_btns += '''<li class="%s"><a href="?page=%s%s">%s</a></li>''' % (
        #     ele_class, page_num, filters, page_num)
        else: #显示...
            if added_dot_ele == False: #现在还没加...
                page_btns += '<li><a>...</a></li>'
                added_dot_ele = True


    return mark_safe(page_btns)

###################