79 lines
2.4 KiB
Ruby
79 lines
2.4 KiB
Ruby
module PaginationHelper
|
|
def smart_paginator(set, &block)
|
|
if set.page && set.page > 1000
|
|
sequential_paginator(set)
|
|
else
|
|
numbered_paginator(set, &block)
|
|
end
|
|
end
|
|
|
|
def sequential_paginator(set)
|
|
html = "<menu>"
|
|
|
|
unless set.first_page?
|
|
html << '<li>' + link_to("« Previous", params.merge(:after_id => set.first_id)) + '</li>'
|
|
end
|
|
|
|
unless set.last_page?
|
|
html << '<li>' + link_to("Next »", params.merge(:before_id => set.last_id)) + '</li>'
|
|
end
|
|
|
|
html << "</menu>"
|
|
html.html_safe
|
|
end
|
|
|
|
def numbered_paginator(set, &block)
|
|
html = "<menu>"
|
|
window = 3
|
|
if set.total_pages <= (window * 2) + 5
|
|
1.upto(set.total_pages) do |page|
|
|
html << numbered_paginator_item(page, set.current_page, &block)
|
|
end
|
|
elsif set.current_page <= window + 2
|
|
1.upto(set.current_page + window) do |page|
|
|
html << numbered_paginator_item(page, set.current_page, &block)
|
|
end
|
|
html << numbered_paginator_item("...", set.current_page, &block)
|
|
html << numbered_paginator_final_item(set.total_pages, set.current_page, &block)
|
|
|
|
elsif set.current_page >= set.total_pages - (window + 1)
|
|
html << numbered_paginator_item(1, set.current_page, &block)
|
|
html << numbered_paginator_item("...", set.current_page, &block)
|
|
(set.current_page - window).upto(set.total_pages) do |page|
|
|
html << numbered_paginator_item(page, set.current_page, &block)
|
|
end
|
|
else
|
|
html << numbered_paginator_item(1, set.current_page, &block)
|
|
html << numbered_paginator_item("...", set.current_page, &block)
|
|
(set.current_page - window).upto(set.current_page + window) do |page|
|
|
html << numbered_paginator_item(page, set.current_page, &block)
|
|
end
|
|
html << numbered_paginator_item("...", set.current_page, &block)
|
|
html << numbered_paginator_final_item(set.total_pages, set.current_page, &block)
|
|
end
|
|
html << "</menu>"
|
|
html.html_safe
|
|
end
|
|
|
|
def numbered_paginator_final_item(total_pages, current_page, &block)
|
|
if total_pages <= 1000
|
|
numbered_paginator_item(total_pages, current_page, &block)
|
|
else
|
|
""
|
|
end
|
|
end
|
|
|
|
def numbered_paginator_item(page, current_page, &block)
|
|
html = "<li>"
|
|
if page == "..."
|
|
html << "..."
|
|
elsif page == current_page
|
|
html << page.to_s
|
|
else
|
|
html << capture(page, &block)
|
|
end
|
|
html << "</li>"
|
|
html.html_safe
|
|
end
|
|
end
|