Django模糊查询

https://blog.csdn.net/liuweiyuxiang/article/details/71104613

def search(request):

    searchtype = request.POST.get("searchtype")

    keyword = request.POST.get("keyword")

    if searchtype == "all":

        #多个字段模糊查询， 括号中的下划线是双下划线，双下划线前是字段名，双下划线后可以是icontains或contains,区别是是否大小写敏感，竖线是或的意思

        sciencenews = models.Sciencenews.objects.filter(Q(title__icontains=keyword)\

|Q(content__icontains=keyword)|Q(author__icontains=keyword))

    elif searchtype == "author":

        #单个字段模糊查询

        sciencenews = models.Sciencenews.objects.filter(author__icontains=keyword)

    elif searchtype == "title":

        sciencenews = models.Sciencenews.objects.filter(title__icontains=keyword)

    elif searchtype == "content":

        sciencenews = models.Sciencenews.objects.filter(content__icontains=keyword)

else:

#使用点连接的filter链表示and

sciencenews = models.Sciencenews.objects.filter(author__icontains=keyword).\

filter(title__icontains=keyword).filter(content__icontains=keyword)

    return render(request,"show/index.html",{"param":sciencenews,"searchtype":searchtype,"keyword":keyword})

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