1,def client(request,edit_id=None): #增加和修改
obj = models.Customer.objects.filter(id=edit_id).first()
form_obj = RegForm2(instance=obj)
if request.method == 'POST':
form_obj = RegForm2(request.POST,instance=obj)
if form_obj.is_valid():
form_obj.save()
return redirect('/clients_library/')
return render(request,'client.html',{'form_obj':form_obj})
RegForms(instance=Ture) 这会保留原先的值进行操作
2,反向操作的使用:
在url中使用 name
在html 中{% url 'url中的名' 值%}
在views中 使用reverse
3,对于相同代码的复用,这里使用了销售来做判断
def customer_list(request):
if request.path_info == reverse('my_customer'):
all_customers = models.Customer.objects.filter(consultant=request.user).order_by('id')
else:
all_customers = models.Customer.objects.filter(consultant__isnull=True).order_by('id')
return render(request, 'customer_list.html', {"all_customers": all_customers})
4,选择框:
思路:
先由前端发出post的请求,发送选择的方式和具体的数据
在由后端取出选择方式进行判断,再执行相应的代码,
代码中会涉及到增删改查
add的使用
request.user.customers.remove(*models.Customer.objects.filter(id__in=obj_ids))
对象打散 注意
注意:
request.user取到当前的登录的对象
html代码:
<form action="" method="post" class="form-inline">
{% csrf_token %}
<div class="form-group pull-left">
<select name="actions" id="" class="form-control">
<option value="">请选择</option>
{% if request.path_info == '/clients_library/' %}
<option value="multi_pub">放入私户</option>
{% else %}
<option value="multi_apply">放入公户</option>
{% endif %}
<option value="multi_del">删除</option>
</select>
<button class="btn btn-sm btn-primary">执行</button>
</div>
<table class="table table-hover">
<thead>
<tr>
<th>选择</th>
<th>序号</th>
<th>qq</th>
<th>qq昵称</th>
<th>姓名</th>
<th>客户来源</th>
<th>班级类型</th>
<th>状态</th>
<th>咨询日期</th>
<th>最后跟进日期</th>
<th>销售</th>
<th>已报班级</th>
</tr>
</thead>
<tbody>
{% for cus in cus_filter %}
<tr>
<td><input type="checkbox" value="{{ cus.id }}" name="id"></td>
<td>{{ forloop.counter }}</td>
<td><a href="{% url 'edit_client' cus.id %}">{{ cus.qq }}</a></td>
<td>{{ cus.qq_name|default:'暂无' }}</td>
<td>{{ cus.name|default:'暂无' }}</td>
<td>{{ cus.get_source_display }}</td>
<td>{{ cus.get_class_type_display }}</td>
<td>
{{ cus.show_status }}
</td>
<td>{{ cus.date }}</td>
<td>{{ cus.last_consult_date }}</td>
<td>{{ cus.consultant }}</td>
<td>{{ cus.show_class }}</td>
</tr>
{% endfor %}
</tbody>
</table>
</form>
views:
def post(self,request):
action = request.POST.get('actions')
if not hasattr(self,action):
return HttpResponse('非法操作')
getattr(self,action)(request)
return self.get(request)
def multi_apply(self,request):
obj_ids = request.POST.getlist('id')
print(self.request.user)
request.user.customers.remove(*models.Customer.objects.filter(id__in=obj_ids))
def multi_pub(self,request):
obj_ids = request.POST.getlist('id')
request.user.customers.add(*models.Customer.objects.filter(id__in=obj_ids))
def multi_del(self,request):
obj_ids = request.POST.getlist('id')
models.Customer.objects.filter(id__in=obj_ids).delete()
5,搜索框:加入数据库选择的情况,需要注意分页的查看
Q方法的使用:
q = Q()
q.connector = 'OR'
q.children.append()
Q(Q()|Q())
Q(Q('f_contains',值))
QueryDict转换:
query_params = deepcopy(request.GET)
query_params._mutable = True 允许添加,默认为False
self.query_params.urlencode()将字典转化为&连接
6,分页加搜索框:
代码:
"""
分页组件
"""
from django.utils.html import mark_safe
class Pagination(object):
def __init__(self, request, all_count, base_url, query_params, per_num=10, max_show=11):
try:
current_page = int(request.GET.get('page'))
if current_page <= 0:
raise Exception()
except Exception as e:
current_page = 1
self.base_url = base_url
self.current_page = current_page
self.query_params = query_params
self.max_show = max_show
self.half_show = max_show // 2
self.all_count = all_count
self.per_num = per_num
self.total_page, more = divmod(self.all_count, self.per_num)
if more:
self.total_page += 1
@property
def start(self):
return (self.current_page - 1) * self.per_num
@property
def end(self):
return self.current_page * self.per_num
@property
def html_str(self):
# 计算起始页码数和终止页码数
# 总页码数小于最大显示的页码数
if self.total_page < self.max_show:
page_start = 1
page_end = self.total_page
else:
if self.current_page <= self.half_show:
# 总页码数大于最大显示页码数
page_start = 1
page_end = self.max_show
elif self.current_page + self.half_show > self.total_page:
page_start = self.total_page - self.max_show + 1
page_end = self.total_page
else:
page_start = self.current_page - self.half_show
page_end = self.current_page + self.half_show
html_list = []
if self.current_page <= 1:
prev_li = '<li class="disabled"><a><上一页></a></li>'
else:
self.query_params['page'] = self.current_page - 1
prev_li = '<li><a href="{0}?{1}"><上一页></a></li>'.format(self.base_url, self.query_params.urlencode())
html_list.append(prev_li)
for i in range(page_start, page_end + 1):
self.query_params['page'] = i
if i == self.current_page:
li_html = '<li class="active"><a href="{0}?{1}">{2}</a></li>'.format(self.base_url,
self.query_params.urlencode(), i)
else:
li_html = '<li><a href="{0}?{1}">{2}</a></li>'.format(self.base_url, self.query_params.urlencode(), i)
html_list.append(li_html)
if self.current_page >= self.total_page:
next_li = '<li class="disabled"><a>< 下一页 ></a></li>'
else:
self.query_params['page'] = self.current_page + 1
next_li = '<li><a href="{0}?{1}">< 下一页 ></a></li>'.format(self.base_url, self.query_params.urlencode())
html_list.append(next_li)
return mark_safe("".join(html_list))
使用:
page_obj = Pagination(request, len(all_customers), request.path_info,query_params, 2)
return render(request, 'customer_list.html',
{
"all_customers": all_customers[page_obj.start:page_obj.end],
"page_html": page_obj.html_str
})
class CustomerList(View):
def get(self, request):
q = self.get_search_conditon(request, ['qq', 'qq_name'])
if request.path_info == reverse('my_customer'):
all_customers = models.Customer.objects.filter(consultant=request.user).order_by('id')
else:
all_customers = models.Customer.objects.filter(
q, consultant__isnull=True).order_by(
'id')
query_params= copy.deepcopy(request.GET)
# <QueryDict: {'query': ['456']}>
# ?query=456
query_params._mutable = True
# query_params['page']=15
# print(query_params.urlencode())
# ?query =456&page=15
# 处理分页
page_obj = Pagination(request, len(all_customers), request.path_info,query_params, 2)
return render(request, 'customer_list.html',
{
"all_customers": all_customers[page_obj.start:page_obj.end],
"page_html": page_obj.html_str
})
def post(self, request):
action = request.POST.get('actions')
if not hasattr(self, action):
return HttpResponse('非法操作')
getattr(self, action)(request)
return self.get(request)
def multi_apply(self, request):
obj_ids = request.POST.getlist('id')
request.user.customers.add(*models.Customer.objects.filter(id__in=obj_ids))
def multi_pub(self, request):
obj_ids = request.POST.getlist('id')
request.user.customers.remove(*models.Customer.objects.filter(id__in=obj_ids))
def get_search_conditon(self, request, fields_list):
query = request.GET.get('query', '')
q = Q()
q.connector = 'OR'
for i in fields_list:
q.children.append(Q(('%s__contains' % i, query)))
return q