cst1/openstreetmap-website
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Merge 1723730a9e into feeaa1b03f

Browse source
This commit is contained in:
Anton Khorev 2025-03-08 18:16:42 +01:00 • committed by GitHub
commit ffda2e41e7
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
8 changed files with 105 additions and 655 deletions
Download patch file Download diff file Expand all files Collapse all files

69
app/controllers/changesets_controller.rb
View file

@ -78,28 +78,33 @@ class ChangesetsController < ApplicationController
@changeset = Changeset.find(params[:id])
case turbo_frame_request_id
when "changeset_nodes"
@node_pages, @nodes = paginate(:old_nodes, :conditions => { :changeset_id => @changeset.id }, :order => [:node_id, :version], :per_page => 20, :parameter => "node_page")
render :partial => "elements", :locals => { :type => "node", :elements => @nodes, :pages => @node_pages }
load_nodes
render :partial => "elements", :locals => { :type => "node", :paginator => @nodes_paginator }
when "changeset_ways"
@way_pages, @ways = paginate(:old_ways, :conditions => { :changeset_id => @changeset.id }, :order => [:way_id, :version], :per_page => 20, :parameter => "way_page")
render :partial => "elements", :locals => { :type => "way", :elements => @ways, :pages => @way_pages }
load_ways
render :partial => "elements", :locals => { :type => "way", :paginator => @ways_paginator }
when "changeset_relations"
@relation_pages, @relations = paginate(:old_relations, :conditions => { :changeset_id => @changeset.id }, :order => [:relation_id, :version], :per_page => 20, :parameter => "relation_page")
render :partial => "elements", :locals => { :type => "relation", :elements => @relations, :pages => @relation_pages }
load_relations
render :partial => "elements", :locals => { :type => "relation", :paginator => @relations_paginator }
else
@comments = if current_user&.moderator?
@changeset.comments.unscope(:where => :visible).includes(:author)
else
@changeset.comments.includes(:author)
end
@node_pages, @nodes = paginate(:old_nodes, :conditions => { :changeset_id => @changeset.id }, :order => [:node_id, :version], :per_page => 20, :parameter => "node_page")
@way_pages, @ways = paginate(:old_ways, :conditions => { :changeset_id => @changeset.id }, :order => [:way_id, :version], :per_page => 20, :parameter => "way_page")
@relation_pages, @relations = paginate(:old_relations, :conditions => { :changeset_id => @changeset.id }, :order => [:relation_id, :version], :per_page => 20, :parameter => "relation_page")
load_nodes
load_ways
load_relations
if @changeset.user.active? && @changeset.user.data_public?
changesets = conditions_nonempty(@changeset.user.changesets)
@next_by_user = changesets.where("id > ?", @changeset.id).reorder(:id => :asc).first
@prev_by_user = changesets.where(:id => ...@changeset.id).reorder(:id => :desc).first
end
render :layout => map_layout
end
rescue ActiveRecord::RecordNotFound
@ -134,4 +139,50 @@ class ChangesetsController < ApplicationController
def conditions_nonempty(changesets)
changesets.where("num_changes > 0")
end
def load_nodes
nodes = OldNode.where(:changeset => @changeset).order(:node_id, :version)
@nodes_paginator = ElementsPaginator.new(nodes, 20, params[:node_page])
end
def load_ways
ways = OldWay.where(:changeset => @changeset).order(:way_id, :version)
@ways_paginator = ElementsPaginator.new(ways, 20, params[:way_page])
end
def load_relations
relations = OldRelation.where(:changeset => @changeset).order(:relation_id, :version)
@relations_paginator = ElementsPaginator.new(relations, 20, params[:relation_page])
end
class ElementsPaginator
attr_reader :elements_count, :elements_per_page, :current_page, :current_page_elements
def initialize(elements, elements_per_page, current_page = 1)
@elements_count = elements.count
@elements_per_page = elements_per_page.to_i
@current_page = current_page.to_i.clamp(1, pages_count)
@current_page_elements = elements.offset(@elements_per_page * (@current_page - 1)).limit(@elements_per_page)
end
def pages_count
[1, 1 + ((elements_count - 1) / elements_per_page)].max
end
def pages
1..pages_count
end
def pages_window(window_size, page = current_page)
[page - window_size, pages.first].max..[page + window_size, pages.last].min
end
def lower_element_number(page = current_page)
(elements_per_page * (page - 1)) + 1
end
def upper_element_number(page = current_page)
[elements_per_page * page, elements_count].min
end
end
end

43
app/helpers/browse_helper.rb
View file

@ -79,33 +79,56 @@ module BrowseHelper
"nofollow" if object.tags.empty?
end
def type_and_paginated_count(type, pages, selected_page = pages.current_page)
if pages.page_count == 1
def type_and_paginated_count(type, paginator, page = paginator.current_page)
if paginator.pages_count <= 1
t ".#{type.pluralize}",
:count => pages.item_count
:count => paginator.elements_count
else
t ".#{type.pluralize}_paginated",
:x => selected_page.first_item,
:y => selected_page.last_item,
:count => pages.item_count
:x => paginator.lower_element_number(page),
:y => paginator.upper_element_number(page),
:count => paginator.elements_count
end
end
def sidebar_classic_pagination(pages, page_param)
def sidebar_classic_pagination(paginator, page_param)
window_size = 2
max_width_for_default_padding = 35
pages = paginator.pages
window = paginator.pages_window(window_size)
page_items = []
if window.first != pages.first
page_items.push [pages.first.to_s, pages.first]
page_items.push ["...", "disabled"] if window.first - pages.first > 1
end
window.each do |page|
if paginator.current_page == page
page_items.push [page.to_s, "active"]
else
page_items.push [page.to_s, page]
end
end
if window.last != pages.last
page_items.push ["...", "disabled"] if pages.last - window.last > 1
page_items.push [pages.last.to_s, pages.last]
end
width = 0
pagination_items(pages, {}).each do |(body)|
page_items.each do |(body)|
width += 2 # padding width
width += body.length
end
link_classes = ["page-link", { "px-1" => width > max_width_for_default_padding }]
tag.ul :class => "pagination pagination-sm mb-2" do
pagination_items(pages, {}).each do |body, page_or_class|
page_items.each do |body, page_or_class|
linked = !(page_or_class.is_a? String)
link = if linked
link_to body, url_for(page_param => page_or_class.number), :class => link_classes, **yield(page_or_class)
link_to body, url_for(page_param => page_or_class), :class => link_classes, **yield(page_or_class)
else
tag.span body, :class => link_classes
end

4
app/views/changesets/_elements.html.erb
View file

@ -1,7 +1,7 @@
<%= turbo_frame_tag "changeset_#{type.pluralize}" do %>
<%= render :partial => "paging_nav", :locals => { :type => type, :pages => pages } %>
<%= render :partial => "paging_nav", :locals => { :type => type, :paginator => paginator } %>
<ul class="list-unstyled browse-element-list" data-turbo="false">
<% elements.each do |element| %>
<% paginator.current_page_elements.each do |element| %>
<%= element_list_item_with_strikethrough type, element do %>
<%= t "printable_name.current_and_old_links_html",
:current_link => link_to(printable_element_name(element), :controller => type.pluralize, :action => :show, :id => element.id[0]),

8
app/views/changesets/_paging_nav.html.erb
View file

@ -1,8 +1,8 @@
<h4 class="fs-5"><%= type_and_paginated_count(type, pages) %></h4>
<% if pages.page_count > 1 %>
<%= sidebar_classic_pagination(pages, "#{type}_page") do |page|
<h4 class="fs-5"><%= type_and_paginated_count(type, paginator) %></h4>
<% if paginator.pages_count > 1 %>
<%= sidebar_classic_pagination(paginator, "#{type}_page") do |page|
{
:title => type_and_paginated_count(type, pages, page),
:title => type_and_paginated_count(type, paginator, page),
:data => { :turbo => "true" }
}
end %>

12
app/views/changesets/show.html.erb
View file

@ -97,16 +97,16 @@
<% end %>
<% end %>
<% unless @ways.empty? %>
<%= render :partial => "elements", :locals => { :type => "way", :elements => @ways, :pages => @way_pages } %>
<% unless @ways_paginator.current_page_elements.empty? %>
<%= render :partial => "elements", :locals => { :type => "way", :paginator => @ways_paginator } %>
<% end %>
<% unless @relations.empty? %>
<%= render :partial => "elements", :locals => { :type => "relation", :elements => @relations, :pages => @relation_pages } %>
<% unless @relations_paginator.current_page_elements.empty? %>
<%= render :partial => "elements", :locals => { :type => "relation", :paginator => @relations_paginator } %>
<% end %>
<% unless @nodes.empty? %>
<%= render :partial => "elements", :locals => { :type => "node", :elements => @nodes, :pages => @node_pages } %>
<% unless @nodes_paginator.current_page_elements.empty? %>
<%= render :partial => "elements", :locals => { :type => "node", :paginator => @nodes_paginator } %>
<% end %>
</div>

33
config/initializers/classic_pagination.rb
View file

@ -1,33 +0,0 @@
#--
# Copyright (c) 2004-2006 David Heinemeier Hansson
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#++
require "classic_pagination/pagination"
require "classic_pagination/pagination_helper"
ActionController::Base.class_eval do
include ActionController::Pagination
end
ActionView::Base.class_eval do
include ActionView::Helpers::PaginationHelper
end

422
lib/classic_pagination/pagination.rb
View file

@ -1,422 +0,0 @@
module ActionController
# === Action Pack pagination for Active Record collections
#
# The Pagination module aids in the process of paging large collections of
# Active Record objects. It offers macro-style automatic fetching of your
# model for multiple views, or explicit fetching for single actions. And if
# the magic isn't flexible enough for your needs, you can create your own
# paginators with a minimal amount of code.
#
# The Pagination module can handle as much or as little as you wish. In the
# controller, have it automatically query your model for pagination; or,
# if you prefer, create Paginator objects yourself.
#
# Pagination is included automatically for all controllers.
#
# For help rendering pagination links, see
# ActionView::Helpers::PaginationHelper.
#
# ==== Automatic pagination for every action in a controller
#
# class PersonController < ApplicationController
# model :person
#
# paginate :people, :order => 'last_name, first_name',
# :per_page => 20
#
# # ...
# end
#
# Each action in this controller now has access to a <tt>@people</tt>
# instance variable, which is an ordered collection of model objects for the
# current page (at most 20, sorted by last name and first name), and a
# <tt>@person_pages</tt> Paginator instance. The current page is determined
# by the <tt>params[:page]</tt> variable.
#
# ==== Pagination for a single action
#
# def list
# @person_pages, @people =
# paginate :people, :order => 'last_name, first_name'
# end
#
# Like the previous example, but explicitly creates <tt>@person_pages</tt>
# and <tt>@people</tt> for a single action, and uses the default of 10 items
# per page.
#
# ==== Custom/"classic" pagination
#
# def list
# @person_pages = Paginator.new self, Person.count, 10, params[:page]
# @people = Person.find :all, :order => 'last_name, first_name',
# :limit => @person_pages.items_per_page,
# :offset => @person_pages.current.offset
# end
#
# Explicitly creates the paginator from the previous example and uses
# Paginator#to_sql to retrieve <tt>@people</tt> from the model.
#
module Pagination
if const_defined?(:OPTIONS)
DEFAULT_OPTIONS[:group] = nil
else
# A hash holding options for controllers using macro-style pagination
OPTIONS = {}.freeze
# The default options for pagination
DEFAULT_OPTIONS = {
:class_name => nil,
:singular_name => nil,
:per_page => 10,
:conditions => nil,
:order_by => nil,
:order => nil,
:join => nil,
:joins => nil,
:count => nil,
:include => nil,
:select => nil,
:group => nil,
:parameter => "page"
}.freeze
end
def self.included(base) # :nodoc:
super
base.extend(ClassMethods)
end
def self.validate_options!(collection_id, options, in_action) # :nodoc:
options.merge!(DEFAULT_OPTIONS) { |_key, old, _new| old }
valid_options = DEFAULT_OPTIONS.keys
valid_options << :actions unless in_action
unknown_option_keys = options.keys - valid_options
unless unknown_option_keys.empty?
raise ActionController::ActionControllerError,
"Unknown options: #{unknown_option_keys.join(', ')}"
end
options[:singular_name] ||= ActiveSupport::Inflector.singularize(collection_id.to_s)
options[:class_name] ||= ActiveSupport::Inflector.camelize(options[:singular_name])
end
# Returns a paginator and a collection of Active Record model instances
# for the paginator's current page. This is designed to be used in a
# single action; to automatically paginate multiple actions, consider
# ClassMethods#paginate.
#
# +options+ are:
# <tt>:singular_name</tt>:: the singular name to use, if it can't be inferred by singularizing the collection name
# <tt>:class_name</tt>:: the class name to use, if it can't be inferred by
# camelizing the singular name
# <tt>:per_page</tt>:: the maximum number of items to include in a
# single page. Defaults to 10
# <tt>:conditions</tt>:: optional conditions passed to Model.find(:all, *params) and
# Model.count
# <tt>:order</tt>:: optional order parameter passed to Model.find(:all, *params)
# <tt>:order_by</tt>:: (deprecated, used :order) optional order parameter passed to Model.find(:all, *params)
# <tt>:joins</tt>:: optional joins parameter passed to Model.find(:all, *params)
# and Model.count
# <tt>:join</tt>:: (deprecated, used :joins or :include) optional join parameter passed to Model.find(:all, *params)
# and Model.count
# <tt>:include</tt>:: optional eager loading parameter passed to Model.find(:all, *params)
# and Model.count
# <tt>:select</tt>:: :select parameter passed to Model.find(:all, *params)
#
# <tt>:count</tt>:: parameter passed as :select option to Model.count(*params)
#
# <tt>:group</tt>:: :group parameter passed to Model.find(:all, *params). It forces the use of DISTINCT instead of plain COUNT to come up with the total number of records
#
def paginate(collection_id, options = {})
Pagination.validate_options!(collection_id, options, true)
paginator_and_collection_for(collection_id, options)
end
# These methods become class methods on any controller
module ClassMethods
# Creates a +before_action+ which automatically paginates an Active
# Record model for all actions in a controller (or certain actions if
# specified with the <tt>:actions</tt> option).
#
# +options+ are the same as PaginationHelper#paginate, with the addition
# of:
# <tt>:actions</tt>:: an array of actions for which the pagination is
# active. Defaults to +nil+ (i.e., every action)
def paginate(collection_id, options = {})
Pagination.validate_options!(collection_id, options, false)
module_eval do
before_action :create_paginators_and_retrieve_collections
OPTIONS[self] ||= {}
OPTIONS[self][collection_id] = options
end
end
end
protected
def create_paginators_and_retrieve_collections # :nodoc:
Pagination::OPTIONS[self.class].each do |collection_id, options|
next if options[:actions]&.exclude?(action_name)
paginator, collection =
paginator_and_collection_for(collection_id, options)
paginator_name = "@#{options[:singular_name]}_pages"
instance_variable_set(paginator_name, paginator)
collection_name = "@#{collection_id}"
instance_variable_set(collection_name, collection)
end
end
# Returns the total number of items in the collection to be paginated for
# the +model+ and given +conditions+. Override this method to implement a
# custom counter.
def count_collection_for_pagination(model, options)
collection = model.joins(options[:join] || options[:joins])
collection = collection.where(options[:conditions])
collection = collection.includes(options[:include])
if options[:group]
collection = collection.select(options[:group]).distinct
elsif options[:count]
collection = collection.select(options[:count])
end
collection.count
end
# Returns a collection of items for the given +model+ and +options[conditions]+,
# ordered by +options[order]+, for the current page in the given +paginator+.
# Override this method to implement a custom finder.
def find_collection_for_pagination(model, options, paginator)
collection = model.joins(options[:join] || options[:joins])
collection = collection.where(options[:conditions])
collection = collection.order(options[:order_by] || options[:order])
collection = collection.includes(options[:include])
collection = collection.group(options[:group])
collection = collection.select(options[:select]) if options[:select]
collection.offset(paginator.current.offset).limit(options[:per_page])
end
private
def paginator_and_collection_for(_collection_id, options) # :nodoc:
klass = options[:class_name].constantize
page = params[options[:parameter]]
count = count_collection_for_pagination(klass, options)
paginator = Paginator.new(self, count, options[:per_page], page)
collection = find_collection_for_pagination(klass, options, paginator)
[paginator, collection]
end
# A class representing a paginator for an Active Record collection.
class Paginator
include Enumerable
# Creates a new Paginator on the given +controller+ for a set of items
# of size +item_count+ and having +items_per_page+ items per page.
# Raises ArgumentError if items_per_page is out of bounds (i.e., less
# than or equal to zero). The page CGI parameter for links defaults to
# "page" and can be overridden with +page_parameter+.
def initialize(controller, item_count, items_per_page, current_page = 1)
raise ArgumentError, "must have at least one item per page" if
items_per_page <= 0
@controller = controller
@item_count = item_count || 0
@items_per_page = items_per_page
@pages = {}
self.current_page = current_page
end
attr_reader :controller, :item_count, :items_per_page
# Sets the current page number of this paginator. If +page+ is a Page
# object, its +number+ attribute is used as the value; if the page does
# not belong to this Paginator, an ArgumentError is raised.
def current_page=(page)
raise ArgumentError, "Page/Paginator mismatch" if page.is_a?(Page) && page.paginator != self
page = page.to_i
@current_page_number = contains_page?(page) ? page : 1
end
# Returns a Page object representing this paginator's current page.
def current_page
@current_page ||= self[@current_page_number]
end
alias current current_page
# Returns a new Page representing the first page in this paginator.
def first_page
@first_page ||= self[1]
end
alias first first_page
# Returns a new Page representing the last page in this paginator.
def last_page
@last_page ||= self[page_count]
end
alias last last_page
# Returns the number of pages in this paginator.
def page_count
@page_count ||= if @item_count.zero?
1
else
q, r = @item_count.divmod(@items_per_page)
r.zero? ? q : q + 1
end
end
alias length page_count
# Returns true if this paginator contains the page of index +number+.
def contains_page?(number)
number >= 1 && number <= page_count
end
# Returns a new Page representing the page with the given index
# +number+.
def [](number)
@pages[number] ||= Page.new(self, number)
end
# Successively yields all the paginator's pages to the given block.
def each(&)
page_count.times do |n|
yield self[n + 1]
end
end
# A class representing a single page in a paginator.
class Page
include Comparable
# Creates a new Page for the given +paginator+ with the index
# +number+. If +number+ is not in the range of valid page numbers or
# is not a number at all, it defaults to 1.
def initialize(paginator, number)
@paginator = paginator
@number = number.to_i
@number = 1 unless @paginator.contains_page? @number
end
attr_reader :paginator, :number
alias to_i number
# Compares two Page objects and returns true when they represent the
# same page (i.e., their paginators are the same and they have the
# same page number).
def ==(other)
return false if other.nil?
@paginator == other.paginator &&
@number == other.number
end
# Compares two Page objects and returns -1 if the left-hand page comes
# before the right-hand page, 0 if the pages are equal, and 1 if the
# left-hand page comes after the right-hand page. Raises ArgumentError
# if the pages do not belong to the same Paginator object.
def <=>(other)
raise ArgumentError unless @paginator == other.paginator
@number <=> other.number
end
# Returns the item offset for the first item in this page.
def offset
@paginator.items_per_page * (@number - 1)
end
# Returns the number of the first item displayed.
def first_item
offset + 1
end
# Returns the number of the last item displayed.
def last_item
[@paginator.items_per_page * @number, @paginator.item_count].min
end
# Returns true if this page is the first page in the paginator.
def first?
self == @paginator.first
end
# Returns true if this page is the last page in the paginator.
def last?
self == @paginator.last
end
# Returns a new Page object representing the page just before this
# page, or nil if this is the first page.
def previous
first? ? nil : @paginator[@number - 1]
end
# Returns a new Page object representing the page just after this
# page, or nil if this is the last page.
def next
last? ? nil : @paginator[@number + 1]
end
# Returns a new Window object for this page with the specified
# +padding+.
def window(padding = 2)
Window.new(self, padding)
end
# Returns the limit/offset array for this page.
def to_sql
[@paginator.items_per_page, offset]
end
def to_param # :nodoc:
@number.to_s
end
end
# A class for representing ranges around a given page.
class Window
# Creates a new Window object for the given +page+ with the specified
# +padding+.
def initialize(page, padding = 2)
@paginator = page.paginator
@page = page
self.padding = padding
end
attr_reader :paginator, :page, :padding, :first, :last
# Sets the window's padding (the number of pages on either side of the
# window page).
def padding=(padding)
@padding = padding.negative? ? 0 : padding
# Find the beginning and end pages of the window
@first = if @paginator.contains_page?(@page.number - @padding)
@paginator[@page.number - @padding]
else
@paginator.first
end
@last = if @paginator.contains_page?(@page.number + @padding)
@paginator[@page.number + @padding]
else
@paginator.last
end
end
# Returns an array of Page objects in the current window.
def pages
(@first.number..@last.number).to_a.collect! { |n| @paginator[n] }
end
alias to_a pages
end
end
end
end

169
lib/classic_pagination/pagination_helper.rb
View file

@ -1,169 +0,0 @@
module ActionView
module Helpers
# Provides methods for linking to ActionController::Pagination objects using a simple generator API. You can optionally
# also build your links manually using ActionView::Helpers::AssetHelper#link_to like so:
#
# <%= link_to "Previous page", { :page => paginator.current.previous } if paginator.current.previous %>
# <%= link_to "Next page", { :page => paginator.current.next } if paginator.current.next %>
module PaginationHelper
unless const_defined?(:DEFAULT_OPTIONS)
DEFAULT_OPTIONS = {
:name => :page,
:window_size => 2,
:always_show_anchors => true,
:link_to_current_page => false,
:params => {}
}.freeze
end
# Creates a basic HTML link bar for the given +paginator+. Links will be created
# for the next and/or previous page and for a number of other pages around the current
# pages position. The +html_options+ hash is passed to +link_to+ when the links are created.
#
# ==== Options
# <tt>:name</tt>:: the routing name for this paginator
# (defaults to +page+)
# <tt>:prefix</tt>:: prefix for pagination links
# (i.e. Older Pages: 1 2 3 4)
# <tt>:suffix</tt>:: suffix for pagination links
# (i.e. 1 2 3 4 <- Older Pages)
# <tt>:window_size</tt>:: the number of pages to show around
# the current page (defaults to <tt>2</tt>)
# <tt>:always_show_anchors</tt>:: whether or not the first and last
# pages should always be shown
# (defaults to +true+)
# <tt>:link_to_current_page</tt>:: whether or not the current page
# should be linked to (defaults to
# +false+)
# <tt>:params</tt>:: any additional routing parameters
# for page URLs
#
# ==== Examples
# # We'll assume we have a paginator setup in @person_pages...
#
# pagination_links(@person_pages)
# # => 1 <a href="/?page=2/">2</a> <a href="/?page=3/">3</a> ... <a href="/?page=10/">10</a>
#
# pagination_links(@person_pages, :link_to_current_page => true)
# # => <a href="/?page=1/">1</a> <a href="/?page=2/">2</a> <a href="/?page=3/">3</a> ... <a href="/?page=10/">10</a>
#
# pagination_links(@person_pages, :always_show_anchors => false)
# # => 1 <a href="/?page=2/">2</a> <a href="/?page=3/">3</a>
#
# pagination_links(@person_pages, :window_size => 1)
# # => 1 <a href="/?page=2/">2</a> ... <a href="/?page=10/">10</a>
#
# pagination_links(@person_pages, :params => { :viewer => "flash" })
# # => 1 <a href="/?page=2&amp;viewer=flash/">2</a> <a href="/?page=3&amp;viewer=flash/">3</a> ...
# # <a href="/?page=10&amp;viewer=flash/">10</a>
def pagination_links(paginator, options = {}, html_options = {})
name = options[:name] || DEFAULT_OPTIONS[:name]
params = (options[:params] || DEFAULT_OPTIONS[:params]).clone
prefix = options[:prefix] || ""
suffix = options[:suffix] || ""
pagination_links_each(paginator, options, prefix, suffix) do |n|
params[name] = n
link_to(n.to_s, params, html_options)
end
end
# Iterate through the pages of a given +paginator+, invoking a
# block for each page number that needs to be rendered as a link.
#
# ==== Options
# <tt>:window_size</tt>:: the number of pages to show around
# the current page (defaults to +2+)
# <tt>:always_show_anchors</tt>:: whether or not the first and last
# pages should always be shown
# (defaults to +true+)
# <tt>:link_to_current_page</tt>:: whether or not the current page
# should be linked to (defaults to
# +false+)
#
# ==== Example
# # Turn paginated links into an Ajax call
# pagination_links_each(paginator, page_options) do |link|
# options = { :url => {:action => 'list'}, :update => 'results' }
# html_options = { :href => url_for(:action => 'list') }
#
# link_to_remote(link.to_s, options, html_options)
# end
def pagination_links_each(paginator, options, prefix = nil, suffix = nil)
options = DEFAULT_OPTIONS.merge(options)
link_to_current_page = options[:link_to_current_page]
always_show_anchors = options[:always_show_anchors]
current_page = paginator.current_page
window_pages = current_page.window(options[:window_size]).pages
return unless link_to_current_page || window_pages.length > 1
first = paginator.first
last = paginator.last
html = ""
html << prefix if prefix
if always_show_anchors && !(wp_first = window_pages[0]).first?
html << yield(first.number)
html << " ... " if wp_first.number - first.number > 1
html << " "
end
window_pages.each do |page|
html << if current_page == page && !link_to_current_page
page.number.to_s
else
yield(page.number)
end
html << " "
end
if always_show_anchors && !(wp_last = window_pages[-1]).last?
html << " ... " if last.number - wp_last.number > 1
html << yield(last.number)
end
html << suffix if suffix
html
end
def pagination_items(paginator, options)
options = DEFAULT_OPTIONS.merge(options)
link_to_current_page = options[:link_to_current_page]
always_show_anchors = options[:always_show_anchors]
current_page = paginator.current_page
window_pages = current_page.window(options[:window_size]).pages
first = paginator.first
last = paginator.last
items = []
if always_show_anchors && !(wp_first = window_pages[0]).first?
items.push [first.number.to_s, first]
items.push ["...", "disabled"] if wp_first.number - first.number > 1
end
window_pages.each do |page|
if current_page == page && !link_to_current_page
items.push [page.number.to_s, "active"]
else
items.push [page.number.to_s, page]
end
end
if always_show_anchors && !(wp_last = window_pages[-1]).last?
items.push ["...", "disabled"] if last.number - wp_last.number > 1
items.push [last.number.to_s, last]
end
items
end
end
end
end