django 项目 处理分页返回的问题、跟进和报名

分页的问题:

处理思路:

获取到跳转前的页面的url和url后的数据

url = request.path_info

param = request.GET.copy()

装入到querydict中:

qd = QueryDict()

qd._mutable = True

字典进行赋值:

qd['next'] = url

qd['_query'] = param.urlencode()

转化为&连接的方式

query = qd.urlencode()

进行跳转:1,增加页面,url后的内容

add_btn = mark_safe(

        '<a href="{0}?{1}" class="btn btn-sm btn-primary">增加</a>'.format(reverse('add_client'),query)

)

返回:add_btn query

返回给查看的页面:

add_btn,query = self.get_btn_add(request)

'add_btn':add_btn,

'query':query,

在跳转的页面获取到

add_btn query

进行跳转:

return redirect('{}?{}'.format(next_url,query))

跟进:

生成一个ConsultRecord对象，没有放在数据库

obj = models.ConsultRecord(consultant=request.user)

在做字段筛选的时候

class  ConsultForm(BaseForm):

    def __init__(self, *args, **kwargs):

        super().__init__(*args, **kwargs)

        self.fields['customer'].widget.choices = [(i.id,i) for i in self.instance.consultant.customers.all()]

        self.fields['consultant'].widget.choices = [(self.instance.consultant.id,self.instance.consultant)]

 

    class Meta:

        model = models.ConsultRecord

        fields = '__all__'

        exclude = ['delete_status']

在init 下进行字段的筛选,进行form时选择字段使用choices方法进行筛选

修改时的方式:

customer_obj = enroll_obj.customer

customer_obj.status = 'signed'

customer_obj.save()

函数的复用和选择:

class ConsultRecordList(View):

 

    def get(self,request,customer_id):

        if customer_id == '0':  这里执行判断来区分是所有和个人的

            all_consult_records = models.ConsultRecord.objects.filter(consultant=request.user)   筛选user的

        else:

            all_consult_records = models.ConsultRecord.objects.filter(consultant=request.user,customer_id = customer_id)  筛选user的和指定的id

        return render(request,'consult_record_list.html',{'all_consult_records':all_consult_records})

 

def consult_record(request,edit_id = None):

    obj = models.ConsultRecord.objects.filter(id=edit_id).first() or models.ConsultRecord(consultant=request.user)   or的执行前者为None执行后边的

    form_obj = ConsultForm(instance=obj)

    if request.method == 'POST':

        form_obj = ConsultForm(request.POST,instance=obj)

        if form_obj.is_valid():

            form_obj.save()

            return redirect(reverse('consult_record_list'))

    return render(request, 'consult_record.html', {"form_obj": form_obj})

 

在modes中自定义进行判断:

def enroll_link(self):

    if self.enrollment_set.all():  用反向查找来进行

        return format_html('<a href="{}">查看报名表</a>'.format(reverse('enrollment_list', args=(self.id,))))

    else:

        return format_html('<a href="{}">报名地址</a>'.format(reverse('add_enrollment', args=(self.id,))))