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# frozen_string_literal: true
class Packages::Dependency < ApplicationRecord
has_many :dependency_links, class_name: 'Packages::DependencyLink'
validates :name, :version_pattern, presence: true
validates :name, uniqueness: { scope: :version_pattern }
NAME_VERSION_PATTERN_TUPLE_MATCHING = '(name, version_pattern) = (?, ?)'
MAX_STRING_LENGTH = 255.freeze
MAX_CHUNKED_QUERIES_COUNT = 10.freeze
def self.ids_for_package_names_and_version_patterns(names_and_version_patterns = {}, chunk_size = 50, max_rows_limit = 200)
names_and_version_patterns.reject! { |key, value| key.size > MAX_STRING_LENGTH || value.size > MAX_STRING_LENGTH }
raise ArgumentError, 'Too many names_and_version_patterns' if names_and_version_patterns.size > MAX_CHUNKED_QUERIES_COUNT * chunk_size
matched_ids = []
names_and_version_patterns.each_slice(chunk_size) do |tuples|
where_statement = Array.new(tuples.size, NAME_VERSION_PATTERN_TUPLE_MATCHING)
.join(' OR ')
ids = where(where_statement, *tuples.flatten)
.limit(max_rows_limit + 1)
.pluck(:id)
matched_ids.concat(ids)
raise ArgumentError, 'Too many Dependencies selected' if matched_ids.size > max_rows_limit
end
matched_ids
end
def self.for_package_names_and_version_patterns(names_and_version_patterns = {}, chunk_size = 50, max_rows_limit = 200)
ids = ids_for_package_names_and_version_patterns(names_and_version_patterns, chunk_size, max_rows_limit)
return none if ids.empty?
id_in(ids)
end
def self.pluck_ids_and_names
pluck(:id, :name)
end
def orphaned?
self.dependency_links.empty?
end
end
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