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Contents
module JsonapiCompliable
# Apply sorting logic to the scope.
#
# By default, sorting comes 'for free'. To specify a custom sorting proc:
#
# class PostResource < ApplicationResource
# sort do |scope, att, dir|
# int = dir == :desc ? -1 : 1
# scope.sort_by { |x| x[att] * int }
# end
# end
#
# The sorting proc will be called once for each sort att/dir requested.
# @see Resource.sort
class Scoping::Sort < Scoping::Base
# @return [Proc, Nil] The custom proc specified by Resource DSL
def custom_scope
resource.sorting
end
# Apply default scope logic via Resource adapter
# @return the scope we are chaining/modifying
def apply_standard_scope
each_sort do |attribute, direction|
@scope = resource.adapter.order(@scope, attribute, direction)
end
@scope
end
# Apply custom scoping proc configured via Resource DSL
# @return the scope we are chaining/modifying
def apply_custom_scope
each_sort do |attribute, direction|
@scope = custom_scope
.call(@scope, attribute, direction, resource.context)
end
@scope
end
private
def each_sort
sort_param.each do |sort_hash|
yield sort_hash.keys.first, sort_hash.values.first
end
end
def sort_param
@sort_param ||= query_hash[:sort].empty? ? resource.default_sort : query_hash[:sort]
end
end
end
Version data entries
32 entries across 32 versions & 1 rubygems