分頁器
分頁器對象
from django.core.paginator import Paginator Paginator對象： paginator = Paginator(user_list, 10) per_page: 每頁顯示條目數量 count: 數據總個數 num_pages:總頁數 page_range:總頁數的索引範圍，如: (1,10),(1,200) page: page對象
page對象
page對象：page=paginator.page(頁碼) 生成page對象，傳頁碼，會生成對應頁碼數據 has_next 是否有下一頁 next_page_number 下一頁頁碼 has_previous 是否有上一頁 previous_page_number 上一頁頁碼 object_list 分頁以後的數據列表 number 當前頁 paginator paginator對象
views中
def page_text(request):
book_list = Books.objects.all() paginator = Paginator(book_list, 5) try: current_page = int(request.GET.get('page', 1)) page = paginator.page(current_page) except Exception: current_page = 1 page = paginator.page(current_page) if paginator.num_pages < 12: page_list = paginator.page_range else: if current_page < 6: page_list = range(1, 12) elif current_page > paginator.num_pages - 5: page_list = range(paginator.num_pages - 10, paginator.num_pages + 1) else: page_list = range(current_page - 5, current_page + 6) return render(request, 'page_text.html',locals())
html中
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <link rel="stylesheet" href="/static/bootstrap-3.3.7-dist/css/bootstrap.min.css"> <link rel="stylesheet" href="/static/css/page_text.css"> <title>page_text</title> </head> <body> <div class="container"> <ul class="page_info"> {% for book in page %} <li><span>書名：{{ book.name }}</span> <span>信息：{{ book.info }}</span></li> {% endfor %} </ul> <nav aria-label="Page navigation"> <ul class="pagination"> <li> {% if page.has_previous %} <a href="?page={{ page.previous_page_number }}" aria-label="Previous"> <span aria-hidden="true">上一頁</span> {% else %} <span aria-hidden="true">上一頁</span> {% endif %} </a> </li> {% for page in page_list %} {% if current_page == page %} <li class="active"><a href="/page_text/?page={{ page }}">{{ page }}</a></li> {% else %} <li><a href="/page_text/?page={{ page }}">{{ page }}</a></li> {% endif %} {% endfor %} <li> {% if page.has_next %} <a href="?page={{ page.next_page_number }}" aria-label="Previous"></a> <span aria-hidden="true">下一頁</span> {% else %} <span aria-hidden="true">下一頁</span> {% endif %} </li> </ul> </nav> </div> </body> </html>
模板層
class UserInfo(models.Model):
name=models.CharField(max_length=32) pwd=models.CharField(max_length=32) email=models.EmailField(
views層
from django import forms from django.forms import widgets from django.core.exceptions import ValidationError class RegForm(forms.Form): name = forms.CharField(required=True, max_length=10, min_length=1, label='用戶名', error_messages= {'required': '該字段必填', 'max_length': '太長了', 'min_length': '過短了'}, widget=widgets.TextInput(attrs={'class': 'form-control error'})) pwd = forms.CharField(required=True, max_length=10, min_length=1, label='密碼', error_messages= {'required': '該字段必填', 'max_length': '太長了', 'min_length': '過短了'}, widget=widgets.PasswordInput(attrs={'class': 'form-control error'})) re_pwd = forms.CharField(required=True, max_length=10, min_length=1, label='確認密碼', error_messages= {'required': '該字段必填', 'max_length': '太長了', 'min_length': '過短了'}, widget=widgets.PasswordInput(attrs={'class': 'form-control error'})) email = forms.EmailField(required=True, label='郵箱', error_messages= {'required': '該字段必填', 'invalid': '不符合郵箱格式'}, widget=widgets.PasswordInput(attrs={'class': 'form-control error'})) def clean_name(self):
html中
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <link rel="stylesheet" href="/static/bootstrap-3.3.7-dist/css/bootstrap.min.css"> <title>Title</title> </head> <body> <div class="container-fluid"> <div class="row"> <div class="col-md-6 col-md-offset-3"> <form action="" method="post"> <p>用戶名：<input type="text" name="name" class="form-control" aa="ddd"></p> <p>密碼：<input type="password" name="pwd" class="form-control"></p> <p>確認密碼：<input type="password" name="re_pwd" class="form-control"></p> <p>郵箱<input type="text" name="email" class="form-control"></p> <input type="submit"> </form> <h3>方法一</h3> <form action="" method="post" novalidate> # novalidate表明不使用前端驗證 <p>{{ form_obj.name.label }}:{{ form_obj.name }} <span class="danger">{{ form_obj.name.errors.0 }}</span></p> <p>{{ form_obj.pwd.label }}:{{ form_obj.pwd }} <span class="danger">{{ form_obj.pwd.errors.0 }}</span> </p> <p>{{ form_obj.re_pwd.label }}:{{ form_obj.re_pwd }} <span class="danger">{{ form_obj.re_pwd.errors.0 }}{{ errors }}</span></p> <p>{{ form_obj.email.label }}:{{ form_obj.email }} <span class="danger">{{ form_obj.email.errors.0 }}</span></p> <input type="submit"> </form> <h3>方法二</h3> <form action="" method="post" novalidate> {% for foo in form_obj %} <p>{{ foo.label }}:{{ foo }}<span class="danger">{{ foo.errors.0 }}</span></p> {% endfor %} {{ errors }} <input type="submit"> </form> <h3>方法三</h3> <form action="" method="post" novalidate> {{ form_obj.as_p }}