gitlab-org--gitlab-foss/app/finders/merge_requests/by_approvals_finder.rb

91 lines
2.7 KiB
Ruby

# frozen_string_literal: true
module MergeRequests
# Used to filter MergeRequest collections by approvers
class ByApprovalsFinder
attr_reader :usernames, :ids
# We apply a limitation to the amount of elements that can be part of the filter condition
MAX_FILTER_ELEMENTS = 5
# Initialize the finder
#
# @param [Array<String>] usernames
# @param [Array<Integers>] ids
def initialize(usernames, ids)
# rubocop:disable CodeReuse/ActiveRecord
@usernames = Array(usernames).map(&:to_s).uniq.take(MAX_FILTER_ELEMENTS)
@ids = Array(ids).uniq.take(MAX_FILTER_ELEMENTS)
# rubocop:enable CodeReuse/ActiveRecord
end
# Filter MergeRequest collections by approvers
#
# @param [ActiveRecord::Relation] items the activerecord relation
def execute(items)
if by_no_approvals?
without_approvals(items)
elsif by_any_approvals?
with_any_approvals(items)
elsif ids.present?
find_approved_by_ids(items)
elsif usernames.present?
find_approved_by_names(items)
else
items
end
end
private
# Is param using special condition: "None" ?
#
# @return [Boolean] whether special condition "None" is being used
def by_no_approvals?
includes_special_label?(IssuableFinder::Params::FILTER_NONE)
end
# Is param using special condition: "Any" ?
#
# @return [Boolean] whether special condition "Any" is being used
def by_any_approvals?
includes_special_label?(IssuableFinder::Params::FILTER_ANY)
end
# Check if we have the special label in ids or usernames field
#
# @param [String] label the special label
# @return [Boolean] whether ids or usernames includes the special label
def includes_special_label?(label)
ids.first.to_s.downcase == label || usernames.map(&:downcase).include?(label)
end
# Merge requests without any approval
#
# @param [ActiveRecord::Relation] items
def without_approvals(items)
items.without_approvals
end
# Merge requests with any number of approvals
#
# @param [ActiveRecord::Relation] items the activerecord relation
def with_any_approvals(items)
items.select_from_union([items.with_approvals])
end
# Merge requests approved by given usernames
#
# @param [ActiveRecord::Relation] items the activerecord relation
def find_approved_by_names(items)
items.approved_by_users_with_usernames(*usernames)
end
# Merge requests approved by given user IDs
#
# @param [ActiveRecord::Relation] items the activerecord relation
def find_approved_by_ids(items)
items.approved_by_users_with_ids(*ids)
end
end
end