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require 'active_support/core_ext/object'
require 'active_support/core_ext/string'
begin
require 'padrino-helpers'
module Kaminari::Helpers
module SinatraHelpers
class << self
def registered(app)
app.register Padrino::Helpers
app.helpers HelperMethods
@app = app
end
def view_paths
@app.views
end
alias included registered
end
class ActionViewTemplateProxy
include Padrino::Helpers::OutputHelpers
include Padrino::Helpers::TagHelpers
include Padrino::Helpers::AssetTagHelpers
include Padrino::Helpers::FormatHelpers
include Padrino::Helpers::TranslationHelpers
def initialize(opts={})
@current_path = opts[:current_path]
@param_name = (opts[:param_name] || :page).to_sym
@current_params = opts[:current_params]
@current_params.delete(@param_name)
end
def render(*args)
base = ActionView::Base.new.tap do |a|
a.view_paths << SinatraHelpers.view_paths
a.view_paths << File.expand_path('../../../../app/views', __FILE__)
end
base.render(*args)
end
def url_for(params)
extra_params = {}
if page = params[@param_name] and page != 1
extra_params[@param_name] = page
end
query = @current_params.merge(extra_params)
@current_path + (query.empty? ? '' : "?#{query.to_query}")
end
def link_to_unless(condition, name, options = {}, html_options = {}, &block)
options = url_for(options) if options.is_a? Hash
if condition
if block_given?
block.arity <= 1 ? capture(name, &block) : capture(name, options, html_options, &block)
else
name
end
else
link_to(name, options, html_options)
end
end
def params
@current_params
end
end
module HelperMethods
# A helper that renders the pagination links - for Sinatra.
#
# <%= paginate @articles %>
#
# ==== Options
# * <tt>:window</tt> - The "inner window" size (4 by default).
# * <tt>:outer_window</tt> - The "outer window" size (0 by default).
# * <tt>:left</tt> - The "left outer window" size (0 by default).
# * <tt>:right</tt> - The "right outer window" size (0 by default).
# * <tt>:params</tt> - url_for parameters for the links (:id, :locale, etc.)
# * <tt>:param_name</tt> - parameter name for page number in the links (:page by default)
# * <tt>:remote</tt> - Ajax? (false by default)
# * <tt>:ANY_OTHER_VALUES</tt> - Any other hash key & values would be directly passed into each tag as :locals value.
def paginate(scope, options = {}, &block)
current_path = request.path rescue nil
current_params = Rack::Utils.parse_query(env['QUERY_STRING']).symbolize_keys rescue {}
paginator = Kaminari::Helpers::Paginator.new(
ActionViewTemplateProxy.new(:current_params => current_params, :current_path => current_path, :param_name => options[:param_name] || Kaminari.config.param_name),
options.reverse_merge(:current_page => scope.current_page, :total_pages => scope.total_pages, :per_page => scope.limit_value, :param_name => Kaminari.config.param_name, :remote => false)
)
paginator.to_s
end
# A simple "Twitter like" pagination link that creates a link to the next page.
# Works on Sinatra.
#
# ==== Examples
# Basic usage:
#
# <%= link_to_next_page @items, 'Next Page' %>
#
# Ajax:
#
# <%= link_to_next_page @items, 'Next Page', :remote => true %>
#
# By default, it renders nothing if there are no more results on the next page.
# You can customize this output by passing a parameter <tt>:placeholder</tt>.
#
# <%= link_to_next_page @items, 'Next Page', :placeholder => %{<span>No More Pages</span>} %>
#
def link_to_next_page(scope, name, options = {})
params = options.delete(:params) || (Rack::Utils.parse_query(env['QUERY_STRING']).symbolize_keys rescue {})
param_name = options.delete(:param_name) || Kaminari.config.param_name
placeholder = options.delete(:placeholder)
query = params.merge(param_name => (scope.current_page + 1))
unless scope.last_page?
link_to name, request.path + (query.empty? ? '' : "?#{query.to_query}"), options.reverse_merge(:rel => 'next')
else
placeholder
end
end
end
end
end
if defined? I18n
I18n.load_path += Dir.glob(File.expand_path('../../../../config/locales/*.yml', __FILE__))
end
rescue LoadError
$stderr.puts "[!]You should install `padrino-helpers' gem if you want to use kaminari's pagination helpers with Sinatra."
$stderr.puts "[!]Kaminari::Helpers::SinatraHelper does nothing now..."
module Kaminari::Helpers
module SinatraHelper
def self.registered(*)
end
end
end
end
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