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# An object intended to be compatible with kaminari for pagination,
# although kaminari doesn't doc/spec exactly what you need, so might
# break in future. Could be useful for your own custom pagination too.
#
# You don't normally create one of these yourself, you get one returned
# from Results#pagination
#
#
# <%= paginate @results.pagination %>
class BentoSearch::Results::Pagination
# first arg is results.total_items, second is result
# of normalized_args from searchresults.
#
# We don't do the page/start normalization calc here,
# we count on them both being passed in, already calculated
# by normalize_arguments in SearchResults. Expects :page, 0-based
# :start, and 1-based :per_page to all be passed in in initializer.
def initialize(total, normalized_args)
normalized_args ||= {} # in some error cases, we end up with nil
@total_count = total || 0
@per_page = normalized_args[:per_page] || 10
@current_page = normalized_args[:page] || 1
@start_record = (normalized_args[:start] || 0) + 1
end
def current_page
@current_page
end
# 1-based start, suitable for showing to user
# Can be 0 for empty result set.
def start_record
[@start_record, count_records].min
end
# 1-based last record in window, suitable for showing to user.
# Can be 0 for empty result set.
def end_record
[start_record + per_page - 1, count_records].min
end
# If nil is passed in, will normalize to 0 so things doing math
# comparisons won't raise.
def count_records
@total_count
end
alias count count_records
def total_pages
(@total_count.to_f / @per_page).ceil
end
# kaminari wants both, weird.
alias num_pages total_pages
def first_page?
current_page == 1
end
def last_page?
current_page >= total_pages
end
def per_page
@per_page
end
# kaminari wants it called this.
alias limit_value per_page
end
Version data entries
10 entries across 10 versions & 1 rubygems