[Go Revel] Paginationを実装したい2

### previous, nextを書いていく
app.go

	var start, end, previous, next int
	
	// p はcurrentのint
	previous = p - 1
	next = p + 1

	return c.Render(content, previous, next)

html

    <nav class="pagination" role="navigation" aria-label="pagination">
      <a href="/paging?page={{.previous}}" class="pagination-previous">Previous</a>
      <a href="/paging?page={{.next}}" class="pagination-next">Next page</a>
    </nav>

ただし、previousとnextは、currentが最初もしくは最後のページの場合、非表示にする
app.go

	current = p
	previous = p - 1
	next = p + 1

    <nav class="pagination" role="navigation" aria-label="pagination">
      {{if ne .current 1}}
      <a href="/paging?page={{.previous}}" class="pagination-previous is-left">Previous</a>
      {{end}}
      <a href="/paging?page={{.next}}" class="pagination-next is-right">Next page</a>
    </nav>

うわああああああああああ、条件分岐が永遠増えていく…

これは次行こう