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module ActsAsFerret
# decorator that adds a total_hits accessor and will_paginate compatible
# paging support to search result arrays
class SearchResults < ActsAsFerret::BlankSlate
reveal :methods
attr_reader :current_page, :per_page, :total_hits, :total_pages
alias total_entries total_hits # will_paginate compatibility
alias page_count total_pages # will_paginate backwards compatibility
def initialize(results, total_hits, current_page = 1, per_page = nil)
@results = results
@total_hits = total_hits
@current_page = current_page
@per_page = (per_page || total_hits)
@total_pages = @per_page > 0 ? (@total_hits / @per_page.to_f).ceil : 0
end
def method_missing(symbol, *args, &block)
@results.send(symbol, *args, &block)
end
def respond_to?(name)
methods.include?(name.to_s) || @results.respond_to?(name)
end
# code from here on was directly taken from will_paginate's collection.rb
# Current offset of the paginated collection. If we're on the first page,
# it is always 0. If we're on the 2nd page and there are 30 entries per page,
# the offset is 30. This property is useful if you want to render ordinals
# besides your records: simply start with offset + 1.
#
def offset
(current_page - 1) * per_page
end
# current_page - 1 or nil if there is no previous page
def previous_page
current_page > 1 ? (current_page - 1) : nil
end
# current_page + 1 or nil if there is no next page
def next_page
current_page < total_pages ? (current_page + 1) : nil
end
end
end
Version data entries
13 entries across 13 versions & 4 rubygems