c1805cc4e0
* Refactor the paginator into a ViewComponent.
* Fix inconsistent spacing between paginator items.
* Fix a bug where the sequential paginator generated the wrong next /
previous page links in the <link rel="{next|prev}"> tags in the <head>.
* Always include the final page as a hidden html element, so that it can
be unhidden with custom CSS.
* Make it easier to change the pagination window.
45 lines
1.2 KiB
Ruby
45 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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class PaginatorComponent < ApplicationComponent
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attr_reader :records, :window, :params
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delegate :current_page, :prev_page, :next_page, :total_pages, :paginator_mode, :paginator_page_limit, to: :records
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delegate :ellipsis_icon, :chevron_left_icon, :chevron_right_icon, to: :helpers
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def initialize(records:, params:, window: 4)
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@records = records
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@window = window
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@params = params
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end
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def use_sequential_paginator?
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paginator_mode != :numbered || current_page >= paginator_page_limit
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end
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def pages
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last_page = total_pages
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left = (current_page - window).clamp(2..)
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right = (current_page + window).clamp(..last_page - 1)
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[
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1,
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("..." unless left == 2),
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(left..right).to_a,
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("..." unless right == last_page - 1),
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last_page
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].flatten.compact
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end
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def link_to_page(anchor, page = anchor, **options)
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if page.nil?
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tag.span anchor, **options
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else
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hidden = paginator_mode == :numbered && page > paginator_page_limit
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link_to anchor, url_for_page(page), **options, hidden: hidden
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end
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end
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def url_for_page(page)
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url_for(**params.merge(page: page).permit!)
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end
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end
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