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Size: 1.33 KB
Versions: 16
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Stored size: 1.33 KB
Contents
# frozen_string_literal: true
module Lcms
module Engine
class RelatedInstructionsService
attr_reader :resource, :expanded, :has_more, :instructions
def initialize(resource, expanded)
@resource = resource
@expanded = expanded
find_related_instructions
end
private
def find_related_instructions
instructions = expanded ? expanded_instructions : colapsed_instructions
@has_more = true if videos.size > instructions.size
@instructions = instructions.map do |inst|
ResourceInstructionSerializer.new(inst)
end
end
def expanded_instructions
videos
end
def colapsed_instructions
# show 4 videos
videos[0...4]
end
def videos
@videos ||= find_related_through_standards(limit: 4) do |standard|
standard.resources.media.distinct
end
end
def find_related_through_standards(limit:, &_block)
related = resource.standards.flat_map do |standard|
qset = yield standard
qset = qset.limit(limit) unless expanded # limit each part
qset
end.uniq
if expanded
related
else
@has_more = true if related.count > limit
related[0...limit] # limit total
end
end
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems