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Contents
require 'csv'
module PaginationSearch
class HashPaginate
def initialize(keys = nil)
@keys = keys
end
def page(items, params)
return [] unless items
return items unless params[:limit] && params[:offset]
length = params[:limit].to_i
start = params[:offset].to_i * length
search = params[:search]
sort_by = params[:sort_by]
sort_descending = params[:sort_descending]
processed = process(items, search, sort_by, sort_descending)[start, length]
processed ? processed : []
end
protected
def process(items, search, sort_by, sort_descending)
searched_items = searched(items, search)
sorted_items = sorted(searched_items, sort_by)
ordered(sorted_items, sort_descending)
end
def searched(items, search)
search_conditions = PaginationSearch::SearchConditions.process(search) if search.present?
if search_conditions
items.select { |i| accept?(i, search_conditions) }
else
items
end
end
def match(field, term, match_exact)
f = field.to_s.downcase
t = term.downcase
match_exact ? f == t : f.include?(t)
end
def accept?(item, search_conditions)
search_conditions.trait_term_hash.all? do |search_key, terms|
if search_key == PaginationSearch::SearchConditions::ALL_TRAIT_SEARCH_KEY
search_keys = @keys || item.keys
terms.all? do |term|
search_keys.any? do |k|
match(item[k], term, search_conditions.match_exact?)
end
end
elsif item.key?(search_key)
val = item[search_key]
terms.all? do |term|
match(val, term, search_conditions.match_exact?)
end
else
true
end
end
end
def sorted(items, sort_by)
sort_by.present? ? items.sort_by { |i| i[sort_by] } : items
end
def ordered(items, sort_descending)
sort_descending.to_bool ? items.reverse : items
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems