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# frozen_string_literal: true
module IgnorableColumns
extend ActiveSupport::Concern
ColumnIgnore = Struct.new(:remove_after, :remove_with) do
def safe_to_remove?
Date.today > remove_after
end
def to_s
"(#{remove_after}, #{remove_with})"
end
end
class_methods do
# Ignore database columns in a model
#
# Indicate the earliest date and release we can stop ignoring the column with +remove_after+ (a date string) and +remove_with+ (a release)
def ignore_columns(*columns, remove_after:, remove_with:)
raise ArgumentError, 'Please indicate when we can stop ignoring columns with remove_after (date string YYYY-MM-DD), example: ignore_columns(:name, remove_after: \'2019-12-01\', remove_with: \'12.6\')' unless remove_after =~ Gitlab::Regex.utc_date_regex
raise ArgumentError, 'Please indicate in which release we can stop ignoring columns with remove_with, example: ignore_columns(:name, remove_after: \'2019-12-01\', remove_with: \'12.6\')' unless remove_with
self.ignored_columns += columns.flatten # rubocop:disable Cop/IgnoredColumns
columns.flatten.each do |column|
self.ignored_columns_details[column.to_sym] = ColumnIgnore.new(Date.parse(remove_after), remove_with)
end
end
alias_method :ignore_column, :ignore_columns
def ignored_columns_details
unless defined?(@ignored_columns_details)
IGNORE_COLUMN_MUTEX.synchronize do
@ignored_columns_details ||= superclass.try(:ignored_columns_details)&.dup || {}
end
end
@ignored_columns_details
end
IGNORE_COLUMN_MUTEX = Mutex.new
end
end
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