pagination

Pagination in CouchDB?

The CouchDB Guide has a good discussion of pagination, including lots of sample code, here: http://guide.couchdb.org/draft/recipes.html#pagination Here’s their algorithm: Request rows_per_page + 1 rows from the view Display rows_per_page rows, store last row as next_startkey As page information, keep startkey and next_startkey Use the next_* values to create the next link, and use the others … Read more

MongoDB ranged pagination

Good question! “How many is too many?” – that, of course, depends on your data size and performance requirements. I, personally, feel uncomfortable when I skip more than 500-1000 records. The actual answer depends on your requirements. Here’s what modern sites do (or, at least, some of them). First, navbar looks like this: 1 2 … Read more

Swift tableView Pagination

For that you need to have server side change also. Server will accept fromIndex and batchSize in the API url as query param. let listUrlString = “http://bla.com/json2.php?listType=” + listType + “&t=” + NSUUID().UUIDString + “&batchSize=” + batchSize + “&fromIndex=” + fromIndex In the server response, there will be an extra key totalItems. This will be … Read more

Paginate Javascript array

You can use Array.prototype.slice and just supply the params for (start, end). function paginate(array, page_size, page_number) { // human-readable page numbers usually start with 1, so we reduce 1 in the first argument return array.slice((page_number – 1) * page_size, page_number * page_size); } console.log(paginate([1, 2, 3, 4, 5, 6], 2, 2)); console.log(paginate([1, 2, 3, 4, … Read more

UITableView load more when scrolling to bottom like Facebook application

You can do that by adding a check on where you’re at in the cellForRowAtIndexPath: method. This method is easy to understand and to implement : – (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { // Classic start method static NSString *cellIdentifier = @”MyCell”; MyCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier]; if (!cell) { cell = [[MyCell alloc] initWithStyle:UITableViewCellStyleDefault … Read more

Custom pagination view in Laravel 5

In Laravel 5.3+ use $users->links(‘view.name’) In Laravel 5.0 – 5.2 instead of $users->render() use @include(‘pagination.default’, [‘paginator’ => $users]) views/pagination/default.blade.php @if ($paginator->lastPage() > 1) <ul class=”pagination”> <li class=”{{ ($paginator->currentPage() == 1) ? ‘ disabled’ : ” }}”> <a href=”https://stackoverflow.com/questions/28240777/{{ $paginator->url(1) }}”>Previous</a> </li> @for ($i = 1; $i <= $paginator->lastPage(); $i++) <li class=”{{ ($paginator->currentPage() == $i) ? … Read more