django分页查询及对已经分页的数据进行查询，对条件查询后的数据再次分页
#适用于妹子UI的分页前端,其他的也没问题，稍做修改即可
#对已经分页的数据进行查询，对查询后的数据再次进行分页
#思路：url请求除了需要带current page 还需要带查询的内容，以此判断是否查询后的数据分页
直接上代码：
pages：包含两个类1. Pagination表示对全部数据普通分页 2. PaginationQuery表示对条件查询结果进行分页
#适用于妹子UI的分页前端
#适用于所有数据分页，普通分页
class Pagination(object):
#totalCnt代表表单内容总数量
def __init__(self,currentPage,perPageCnt,totalCnt,pageIndexCnt,urls):
self.currentPage = currentPage
self.perPageCnt = perPageCnt
self.totalCnt = totalCnt
self.pageIndexCnt = pageIndexCnt #表示分页索引显示几个页面，一般显示5个
self.urls = urls
#加上@property时，调用方法不用加()
@property
def page_nums(self):
if self.totalCnt%self.perPageCnt == 0:
return int(self.totalCnt/self.perPageCnt)
else:
return int(self.totalCnt/self.perPageCnt)+1
#其实条数，切片用
@property
def startNum(self):
return (self.currentPage-1)*self.perPageCnt
@property
def endNum(self):
return self.currentPage*self.perPageCnt
@property
def prevPage(self):
return self.currentPage-1
@property
def nextPage(self):
return self.currentPage+1
#分页显示页码，比如显示: prev<< 4,5,6,7,8 >>next
@property
def pageRange(self):
part = int(self.pageIndexCnt/2)
if self.pageIndexCnt < self.page_nums:
if self.currentPage < int(self.pageIndexCnt/2+1):
return range(1,self.pageIndexCnt+1)
elif self.currentPage > self.page_nums-part:
return range(self.page_nums-self.pageIndexCnt,self.page_nums+1)
else:
return range(self.currentPage-part,self.currentPage+part+1)
else:
return range(1,self.page_nums+1)
#直接输送代码给模板
@property
def pageStr(self):
pageNumStr = []
prev_page=""
next_page=""
#页码
if self.currentPage>1 and self.currentPage« Prev"%(self.currentPage-1)
next_page = "Next » "%(self.currentPage+1)
if self.currentPage<=1:
prev_page = "« Prev "
if self.currentPage>=self.page_nums:
next_page = "Next » "
for page in self.pageRange:
if page == self.currentPage:
pageNumStr.append("%s "%(page,page))
else:
pageNumStr.append("%s " % (page, page))
print(pageNumStr)
return prev_page+"".join(pageNumStr)+next_page
#适用于妹子UI的分页前端
#对已经分页的数据进行查询，对查询后的数据再次进行分页
#思路：url请求除了需要带current page 还需要带查询的内容
class PaginationQuery(object):
#content代表需要查询的关键字
def __init__(self,currentPage,perPageCnt,totalCnt,pageIndexCnt,urls,content):
self.currentPage = currentPage #当前页码
self.perPageCnt = perPageCnt #每页要显示多少条
self.totalCnt = totalCnt #totalCnt代表表单内容总数量
self.pageIndexCnt = pageIndexCnt #表示分页索引显示几个页面，一般显示5个
self.urls = urls #请求路径
self.content = content #查询关键字
#加上@property时，调用方法不用加()
@property
def page_nums(self):
if self.totalCnt%self.perPageCnt == 0:
return int(self.totalCnt/self.perPageCnt)
else:
return int(self.totalCnt/self.perPageCnt)+1
#其实条数，切片用
@property
def startNum(self):
return (self.currentPage-1)*self.perPageCnt
@property
def endNum(self):
return self.currentPage*self.perPageCnt
@property
def prevPage(self):
return self.currentPage-1
@property
def nextPage(self):
return self.currentPage+1
#分页显示页码，比如显示: prev<< 4,5,6,7,8 >>next
@property
def pageRange(self):
part = int(self.pageIndexCnt/2)
if self.pageIndexCnt < self.page_nums:
if self.currentPage < int(self.pageIndexCnt/2+1):
return range(1,self.pageIndexCnt+1)
elif self.currentPage > self.page_nums-part:
return range(self.page_nums-self.pageIndexCnt,self.page_nums+1)
else:
return range(self.currentPage-part,self.currentPage+part+1)
else:
return range(1,self.page_nums+1)
#直接输送代码给模板
@property
def pageStr(self):
pageNumStr = []
prev_page=""
next_page=""
#页码
if self.currentPage>1 and self.currentPage« Prev"%(self.currentPage-1,self.content)
next_page = "Next » "%(self.currentPage+1,self.content)
if self.currentPage<=1:
prev_page = "« Prev "
if self.currentPage>=self.page_nums:
next_page = "Next » "
for page in self.pageRange:
if page == self.currentPage:
pageNumStr.append("%s "%(page,self.content,page))
else:
pageNumStr.append("%s "%(page,self.content,page))
# print(pageNumStr)
return prev_page+"".join(pageNumStr)+next_page 分页数据views:
1 issueIndex 因为获取的是所有值，进行普通分页，调用Pagination
2 seleIssue 因为进行了条件查询，所以对条件查询后的内容进行分页，调用PaginationQuery类
因为做项目，其他多余代码请略过：
from django.shortcuts import render,HttpResponse,redirect
from app1 import models
from django import forms
from django.db.models import F,Q
from app1.views.pages import Pagination,PaginationQuery
def issueIndex(request):
issues = models.IssueList.objects.all().order_by("-issueDate")
#分页
currentPage = int(request.GET.get("p",1)) #当前页，如果没有默认1
perPageCnt = 10 #每页显示10个数据
totalCnt = models.IssueList.objects.all().count() #获取全部数据个数
pageIndexCnt = 5 #显示页码 5个,
print(currentPage, "currentpage",totalCnt,pageIndexCnt,request.path)
pagination = Pagination(currentPage,perPageCnt,totalCnt,pageIndexCnt,request.path)
if currentPage > 0 and currentPage< pagination.page_nums:
issues = issues[pagination.startNum:pagination.endNum]
elif currentPage == pagination.page_nums:
issues = issues[pagination.startNum::]
else:
issues = issues[0:10]
return render(request,"issueIndex.html",{"issues":issues,"pagination":pagination})
def seleIssue(request):
content = request.GET.get("content", None)
#判断是否有查询内容
if content:
issues = models.IssueList.objects.filter(Q(cusCompanyForIssue__companyName__icontains=content) |
Q(issueType__name__icontains=content) |
Q(issueContent__icontains=content) |
Q(status__icontains=content) |
Q(issueDept__dept__icontains=content)).order_by("-issueDate")
else:
issues = models.IssueList.objects.all().order_by("-issueDate")
#分页显示
currentPage = int(request.GET.get("p", 1)) # 当前页，如果没有默认1
perPageCnt = 10 # 每页显示10个数据
totalCnt = issues.count() # 获取全部数据个数
pageIndexCnt = 5 # 显示页码 5个,
print(currentPage, "currentpage", totalCnt, pageIndexCnt, request.path)
#判断是否有查询，如果没有就取全部index即可（调用PaginationQuery），如果有内容就调用PaginationQuery
if content:
pagination = PaginationQuery(currentPage, perPageCnt, totalCnt, pageIndexCnt, request.path,content)
else:
pagination = Pagination(currentPage, perPageCnt, totalCnt, pageIndexCnt, request.path)
#获取当前页面要显示的内容，使用切片模式
if currentPage > 0 and currentPage < pagination.page_nums:
issues = issues[pagination.startNum:pagination.endNum]
elif currentPage == pagination.page_nums:
issues = issues[pagination.startNum::]
else:
issues = issues[0:10]
return render(request, "issueIndex.html", {"issues": issues,"pagination":pagination})
def delIssue(request):
cid = request.GET.get("cid",None)
models.IssueList.objects.filter(id=cid).delete()
return redirect("/issueIndex.html/")
class addIssueForm(forms.Form):
# 缺失时间
issueDate = forms.DateField()
# 稽核人员
auditPerson = forms.CharField(max_length=128,required=False)
# 缺失内容
issueContent = forms.CharField(max_length=256,required=False)
# 改善对策
improve = forms.CharField(max_length=512,required=False)
# 缺失状态
status = forms.CharField(max_length=16,required=False)
# 备注
mark = forms.CharField(max_length=256,required=False)
# Status(隐藏)
# hide = forms.BooleanField()
def editIssue(request):
if request.method=="GET":
issueId = request.GET.get("cid",None)
qses = models.QSMember.objects.all()
issuedepts = models.IssueDept.objects.all()
issueTypes = models.IssueType.objects.all()
issue = models.IssueList.objects.filter(id=issueId).first()
companys = models.CustomerInfo.objects.all()
print(issue.cusCompanyForIssue.id)
print(issue.hide)
#locals()传递所有参数
return render(request,"editIssue.html",locals())
else:
obj = addIssueForm(request.POST)
cid = request.GET.get("cid",None)
print(cid)
companyId = request.POST.get("cusComanpyForIssue", None)
issueType = request.POST.get("issueType", None)
issueDept = request.POST.get("issueDept", None)
qs = request.POST.get("issueListQS", None)
hide = request.POST.get("hide", None)
file = request.FILES.get("files")
issueSite = request.POST.get("issueSite", None)
issue = models.IssueList.objects.filter(id=cid)
if obj.is_valid():
issue.update(**obj.cleaned_data,issueType_id=issueType,cusCompanyForIssue_id=companyId,issueSite=issueSite,
issueDept_id=issueDept,issueListQS_id=qs,hide=hide)
if file:
#清除files 第一种写法
models.UploadFile.objects.filter(issueFiles=cid).delete()
import uuid, os
from ctcqs import settings
# 因为一直报错FileNotFound，所以只能先这样写，真的是醉了，搞了好几个小时了# 绝对路径
filepath1 = os.path.join("issueList", str(uuid.uuid4()) + file.name)
# 相对路径 for以后使用
filepath = os.path.join(settings.MEDIA_ROOT, filepath1)
# 创建file
file_obj = models.UploadFile.objects.create(name=file.name, path=filepath1, size=file.size)
# 因为一直路径报错，所以这里准备改，结果成功了，算了
newfile = open(filepath, "wb")
for item in file.chunks():
newfile.write(item)
newfile.close()
issue.first().files.add(file_obj)
return redirect("/issueIndex.html/")
def addIssue(request):
if request.method=="GET":
companys = models.CustomerInfo.objects.all()
qses = models.QSMember.objects.all()
issuedepts = models.IssueDept.objects.all()
issueTypes = models.IssueType.objects.all()
return render(request,"addIssue.html",{"companys":companys,"qses":qses,"issuedepts":issuedepts,"issueTypes":issueTypes})
else:
obj = addIssueForm(request.POST)
companyId = request.POST.get("cusComanpyForIssue",None)
issueType = request.POST.get("issueType",None)
issueDept = request.POST.get("issueDept",None)
qs = request.POST.get("issueListQS",None)
hide = request.POST.get("hide",None)
issueSite = request.POST.get("issueSite", None)
file = request.FILES.get("files")
# print(obj)
if obj.is_valid():
#新增issuelist Item
print("是否隐藏", hide)
issue = models.IssueList.objects.create(**obj.cleaned_data,issueType_id=issueType,cusCompanyForIssue_id=companyId,
issueDept_id=issueDept,issueListQS_id=qs,hide=hide,issueSite=issueSite)
#如果file不为空
if file:
import uuid,os
from ctcqs import settings
# 因为一直报错FileNotFound，所以只能先这样写，真的是醉了，搞了好几个小时了# 绝对路径
filepath1 = os.path.join("issueList", str(uuid.uuid4()) + file.name)
# 相对路径 for以后使用
filepath = os.path.join(settings.MEDIA_ROOT, filepath1)
# 创建file
file_obj = models.UploadFile.objects.create(name=file.name, path=filepath1, size=file.size)
# 因为一直路径报错，所以这里准备改，结果成功了，算了
newfile = open(filepath, "wb")
for item in file.chunks():
newfile.write(item)
newfile.close()
issue.files.add(file_obj)
return redirect("/issueIndex.html/")前端纯分页HTML页面，那个页面需要的时候只需要引用进来即可
引用方式:
{% include "include/pageindexIssue.html" %}
分页HTML内容：pageindexIssue.html，因为我做了首页、尾页、跳转等，
实际上只要一句话即可做到完全分页：
{{ pagination.pageStr|safe }}
分页效果：
1 全部数据分页：
2 条件查询后内容分页效果：
