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# encoding: UTF-8
module Axlsx
# A relationship defines a reference between package parts.
# @note Packages automatically manage relationships.
class Relationship
# The location of the relationship target
# @return [String]
attr_reader :Target
# The type of relationship
# @note Supported types are defined as constants in Axlsx:
# @see XML_NS_R
# @see TABLE_R
# @see WORKBOOK_R
# @see WORKSHEET_R
# @see APP_R
# @see RELS_R
# @see CORE_R
# @see STYLES_R
# @see CHART_R
# @see DRAWING_R
# @return [String]
attr_reader :Type
# The target mode of the relationship
# used for hyperlink type relationships to mark the relationship to an external resource
# TargetMode can be specified during initialization by passing in a :target_mode option
# Target mode must be :external for now.
attr_reader :TargetMode
# creates a new relationship
# @param [String] type The type of the relationship
# @param [String] target The target for the relationship
# @option [Symbol] :target_mode only accepts :external.
def initialize(type, target, options={})
self.Target=target
self.Type=type
self.TargetMode = options.delete(:target_mode) if options[:target_mode]
end
# @see Target
def Target=(v) Axlsx::validate_string v; @Target = v end
# @see Type
def Type=(v) Axlsx::validate_relationship_type v; @Type = v end
# @see TargetMode
def TargetMode=(v) RestrictionValidator.validate 'Relationship.TargetMode', [:External, :Internal], v; @TargetMode = v; end
# serialize relationship
# @param [String] str
# @param [Integer] rId the id for this relationship
# @return [String]
def to_xml_string(rId, str = '')
h = self.instance_values
h[:Id] = 'rId' << rId.to_s
str << '<Relationship '
str << h.map { |key, value| '' << key.to_s << '="' << value.to_s << '"'}.join(' ')
str << '/>'
end
end
end
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