records_helper.rb
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	module RecordsHelper

	DNSSEC_SERIAL_HELP = 'On DNSSEC enabled domains the actual zone serial wont be the same. This is because autosigning bumps the zone serial automatically.'
	# Smart suffix for records
	#
	# On forward zones returns the zone name.
	# On reverse zones returns the zone name but also tries to infer the subnet.
	#
	# Returns a smart suffix string.
	def name_field_append(record)
	return ".#{record.domain.name}" if not record.domain.reverse?

	".#{record.domain.name} (#{record.domain.subnet})"
	end

	# List of record types usually used for that domain type
	def record_types_for_domain(domain)
	return Record.reverse_records if domain.reverse?
	return Record.enum_records if domain.enum?

	Record.forward_records
	end

	def editable_record_attr(rec, attr)
	return soa_content(rec) if rec.type == 'SOA' && attr == :content
	return rec.read_attribute(attr) if rec.type == 'SOA' \|\| !can_edit?(rec)

	link_to(
	rec.read_attribute(attr),
	"#edit-record-#{rec.id}-#{attr}",
	class: 'editable',
	data: { pk: rec.id, name: attr, type: 'text', url: editable_domain_records_path(rec.domain_id) }
	)
	end

	def soa_content(rec)
	SOA::SOA_FIELDS.map { \|attr\|
	value = rec.send(attr)
	value = content_tag(:abbr, value, title: DNSSEC_SERIAL_HELP) if attr.to_s == 'serial' && rec.domain.dnssec?
	"<span class='soa-#{attr}'>#{value}</span>"
	}.join(' ').html_safe
	end
	end