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extract fields from the template #164

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extract fields from the template #164

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6 changes: 6 additions & 0 deletions lib/sablon/template.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,12 @@ def render_to_string(context, properties = {})
render(context, properties).string
end

def fields
xml_node = Sablon::DOM::Model.new(Zip::File.open(@path, !File.exists?(@path))).zip_contents['word/document.xml']
parser = Sablon::Parser::MailMerge.new()
parser.parse_fields(xml_node).map(&:expression).uniq
end

private

def render(context, properties = {})
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