Created
July 27, 2018 11:50
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# frozen_string_literal: true | |
module Bl | |
module Core | |
module Logic | |
class SortCollection | |
include Dry::Monads::Result::Mixin | |
ALLOWED_ORDER_BY = %i[created_at updated_at rating votes_count last_activity_date answers_count].freeze | |
ALLOWED_ORDER_DIRS = %i[asc desc].freeze | |
Schema = Dry::Validation.Schema do | |
configure do | |
predicates(Bl::Core::Logic::ActiveRecordPredicates) | |
end | |
required(:collection).filled(:orderable?) | |
end | |
OptionsSchema = Dry::Validation.Schema do | |
required(:order_by).value(included_in?: ALLOWED_ORDER_BY) | |
required(:order_dir).value(included_in?: ALLOWED_ORDER_DIRS) | |
end | |
def call(input, options = {}) | |
return Success(input) if options.blank? | |
validation = OptionsSchema.call(options) | |
return Failure(input.merge(errors: validation.errors)) if validation.failure? | |
validation = Schema.call(input) | |
return Failure(input.merge(errors: validation.errors)) if validation.failure? | |
collection = input[:collection] | |
sorted = collection.order(options[:order_by] => options[:order_dir]) | |
input[:collection] = sorted | |
Success(input) | |
end | |
end | |
end | |
end | |
end |
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