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Contents
module Graphiti
class Scoping::Paginate < Scoping::Base
DEFAULT_PAGE_SIZE = 20
def apply
if size > resource.max_page_size
raise Graphiti::Errors::UnsupportedPageSize
.new(size, resource.max_page_size)
elsif requested? && @opts[:sideload_parent_length].to_i > 1
raise Graphiti::Errors::UnsupportedPagination
else
super
end
end
# We want to apply this logic unless we've explicitly received the
# +default: false+ option. In that case, only apply if pagination
# was explicitly specified in the request.
#
# @return [Boolean] should we apply this logic?
def apply?
if @opts[:default_paginate] == false
requested?
else
true
end
end
# @return [Proc, Nil] the custom pagination proc
def custom_scope
resource.pagination
end
# Apply default pagination proc via the Resource adapter
def apply_standard_scope
resource.adapter.paginate(@scope, number, size)
end
# Apply the custom pagination proc
def apply_custom_scope
resource.instance_exec(@scope, number, size, resource.context, &custom_scope)
end
private
def requested?
![page_param[:size], page_param[:number]].all?(&:nil?)
end
def page_param
@page_param ||= (query_hash[:page] || {})
end
def number
(page_param[:number] || 1).to_i
end
def size
(page_param[:size] || resource.default_page_size || DEFAULT_PAGE_SIZE).to_i
end
end
end
Version data entries
43 entries across 43 versions & 1 rubygems