在web2py中分页

Question

I have a web2py database with 20 entries and I would like to show only 5 entries per page.

My controller is-

def viewallposts():

         if not request.vars.page:
                 redirect(URL(vars={'page':1}))
         else:   
                 page = int(request.vars.page)
         start = (page-1)*5
         end = page*5
         user = auth.user_id
         image=db().select(db.posts.ALL, orderby=~db.posts.created_on, limitby=(start,end))
         return dict(user=user, image=image)

The next button in my .html file is -

<button><a href={{=URL(vars={'page':int(request.vars.page)+1})}}>Next</a></button>

But, I only see the first 5 entries and when I click next, it doesn't go to the next page. Where have I gone wrong?

Answer 1

The <button> in your View might be the issue. Try it this way:

<a class="btn btn-default" href="{{=URL(vars={'page':int(request.vars.page)-1})}}">Next</a>