Django元件之 分頁器

django自帶分頁器（paginator）， 用起來非常方便。怕自己寫的出bug，可以使用現成的~

''' 批量匯入資料:

booklist=

for i in range(100):

book.objects.bulk_create(booklist)

''''''分頁器的使用:

book_list=book.objects.all()

paginator = paginator(book_list, 10)

print("count:",paginator.count) #資料總數

print("num_pages",paginator.num_pages) #總頁數

print("page_range",paginator.page_range) #頁碼的列表

page1=paginator.page(1) #第1頁的page物件

for i in page1: #遍歷第1頁的所有資料物件

print(i)

print(page1.object_list) #第1頁的所有資料

page2=paginator.page(2)

# 拋錯

#page=paginator.page(12) # error:emptypage

#page=paginator.page("z") # error:pagenotaninteger

'''book_list=book.objects.all()

paginator = paginator(book_list, 10)

page = request.get.get('page',1)

currentpage=int(page)

try:

print(page)

book_list = paginator.page(page)

except pagenotaninteger:

book_list = paginator.page(1)

except emptypage:

book_list = paginator.page(paginator.num_pages)

return render(request,"index.html",)

doctype

html>
lang="en">
charset="utf-8">
titletitle>
rel="stylesheet"
href=""
integrity="sha384-bvyiisifek1dgmjrakycuhahrg32omucww7on3rydg4va+pmstsz/k68vbdejh4u"
crossorigin="anonymous">
head>
class="container">
分頁器h4>
}-----
}li>
ul>
class="pagination"
id="pager">
class="previous">
href="/index/?page=
}li>
class="previous disabled">
li>
class="item active">
href="/index/?page=
}">
}a>
li>
class="item">
href="/index/?page=
}">
}a>
li>
class="next">
href="/index/?page=
}li>
class="next disabled">
li>
ul>
div>
body>
html>

def

index
(request):
book_list=book.objects.all()
paginator = paginator(book_list, 15)
page = request.get.get('page',1)
currentpage=int(page)
# 如果頁數十分多時，換另外一種顯示方式
if paginator.num_pages>11:
if currentpage-5
<1:
pagerange=range(1,11)
elif currentpage+5>paginator.num_pages:
pagerange=range(currentpage-5,paginator.num_pages+1)
else:
pagerange=range(currentpage-5,currentpage+5)
else:
pagerange=paginator.page_range
try:
print(page)
book_list = paginator.page(page)
except pagenotaninteger:
book_list = paginator.page(1)
except emptypage:
book_list = paginator.page(paginator.num_pages)
return render(request,"index.html",locals())

django之分頁器元件

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Django元件 分頁器

批量匯入資料 booklist for i in range 100 book.objects.bulk create booklist 分頁器的使用 book list book.objects.all paginator paginator book list,10 print count pa...

Django元件 分頁器

批量匯入資料 booklist for i in range 100 book.objects.bulk create booklist 分頁器的使用 book list book.objects.all paginator paginator book list,10 print count pa...