<a href = "{% url 'ngraph' %}">Customer Count</a>
顧客数をクリックすると、一度しか機能せず、機能させるにはプログラムを再度実行する必要があります。ここで何が問題なのですか? そして、私が気づいたのは、リンク localhost:8000/graph が(顧客数)クリックされると機能しますが、localhost:8000 がビジーになり、そのリンクが機能しません。それを解決する方法?
ビュー.py
def graph(request):
age = ['below 20', '20-22','22-24','24-26','26-28','28-30','30-40','above 40']
avg_call_group = [0, 0, 0, 0, 0, 0, 0, 0]
cursor = connection.cursor()
cursor.execute("select p.age_group,sum(c.avg_duration) as age_avg_dur from demo p,(select card_no as card_n, avg(duration) as avg_duration from call_details where service_key = 1 and card_no =calling_no group by card_no) as c where p.card_no = c.card_n group by p.age_group ")
numrows = int(cursor.rowcount)
for x in range(numrows):
row = cursor.fetchone()
avg_call_group[x] = row[1]
cursor.close()
import matplotlib.pyplot as plt
f=plt.figure(figsize = (3,3))
exploding = [.04, .04, .04, .04 , .04, .04, .04, .04]
age = ['below 20', '20-22','22-24','24-26','26-28','28-30','30-40','40-50']
plt.pie(avg_call_group, labels= age, autopct='%1.3f%%', explode = exploding)
canvas = FigureCanvasAgg(f)
response = HttpResponse(content_type='image/png')
canvas.print_png(response)
return response
urls.py
from django.conf.urls import patterns, include, url
from welcome.views import *
from django.contrib import admin
admin.autodiscover()
urlpatterns = patterns('',
url(r'^admin/', include(admin.site.urls)),
url(r'^hello/', hello, name = 'nhello'),
url(r'^graph/', graph, name = 'ngraph'),
)
home.html
<div >
<a href = "{% url 'ngraph' %}">Customer Count</a>
</div>
別のソース コードの場所: ここをクリック