problems in building xml using Nokogiri in rails 4 - ruby-on-rails

Question

I need to build the following xml data
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:urn="urn:description7a.services.chrome.com">
<soapenv:Header/>
<soapenv:Body>
<urn:VehicleDescriptionRequest>
<urn:accountInfo number="test" secret="test" country="US" language="en" behalfOf="test"/>
<!--You have a CHOICE of the next 3 items at this level-->
<!--Optional:-->
<urn:styleId>test</urn:styleId>
<urn:switch>ShowAvailableEquipment</urn:switch>
<urn:includeMediaGallery>Both</urn:includeMediaGallery>
</urn:VehicleDescriptionRequest>
</soapenv:Body>
</soapenv:Envelope>
I am using the following code to build it
def self.xml_build(style_id,number,secret,behalfOf)
builder = Nokogiri::XML::Builder.new do |xml|
xml.send("soapenv:Envelope"){
xml.send("soapenv:Header")
xml.send("soapenv:Body") {
xml.send("urn:VehicleDescriptionRequest"){
xml.send("urn:accountInfo")("number"=>"#{number}" "secret"=>"#{secret}" "country"=>"US" "language"=>"en" "behalfOf"=>"#{behalfOf}")
xml.send("urn:styleId"){xml.text "#{style_id}"}
xml.send("urn:switch"){xml.text "ShowAvailableEquipment"}
xml.send("urn:includeMediaGallery"){xml.text "Both"}
}
}
}
end
file_test=File.new("dummy_file", 'w')
file_test.puts builder.to_xml
builder.to_xml
end
I am getting the following error
SyntaxError: /home/aravind/Documents/dev/nthat/app/models/carinfo.rb:27: syntax error, unexpected '(', expecting '}'
... xml.send("urn:accountInfo")("number"=>"#{number}" "secret...
... ^
/home/aravind/Documents/dev/nthat/app/models/carinfo.rb:27: syntax error, unexpected =>, expecting '}'
...d("urn:accountInfo")("number"=>"#{number}" "secret"=>"#{secr...
... ^
/home/aravind/Documents/dev/nthat/app/models/carinfo.rb:27: syntax error, unexpected =>, expecting '}'
...number"=>"#{number}" "secret"=>"#{secret}" "country"=>"US" "...
... ^
/home/aravind/Documents/dev/nthat/app/models/carinfo.rb:27: syntax error, unexpected =>, expecting '}'
...ecret"=>"#{secret}" "country"=>"US" "language"=>"en" "behalf...
... ^
/home/aravind/Documents/dev/nthat/app/models/carinfo.rb:27: syntax error, unexpected =>, expecting '}'
...}" "country"=>"US" "language"=>"en" "behalfOf"=>"#{behalfOf}...
... ^
/home/aravind/Documents/dev/nthat/app/models/carinfo.rb:27: syntax error, unexpected =>, expecting '}'
..." "language"=>"en" "behalfOf"=>"#{behalfOf}")
Also I am not sure how to build this part of the xml:
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:urn="urn:description7a.services.chrome.com">

Answer 1

The following will generate your xml:
require 'nokogiri'
def self.xml_build(style_id,number,secret,behalfOf)
builder = Nokogiri::XML::Builder.new do |xml|
xml.send("soapenv:Envelope", 'xmlns:soapenv' => "http://schemas.xmlsoap.org/soap/envelope/", 'xmlns:urn' => "urn:description7a.services.chrome.com"){
xml.send("soapenv:Header")
xml.send("soapenv:Body") {
xml.send("urn:VehicleDescriptionRequest"){
xml.send("urn:accountInfo", "number"=>"#{number}", "secret"=>"#{secret}", "country"=>"US", "language"=>"en", "behalfOf"=>"#{behalfOf}")
xml.comment('You have a CHOICE of the next 3 items at this level')
xml.comment('Optional:')
xml.send("urn:styleId"){xml.text "#{style_id}"}
xml.send("urn:switch"){xml.text "ShowAvailableEquipment"}
xml.send("urn:includeMediaGallery"){xml.text "Both"}
}
}
}
end
end
puts xml_build('test', 'test', 'test', 'test').to_xml
#=> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:urn="urn:description7a.services.chrome.com">
#=> <soapenv:Header/>
#=> <soapenv:Body>
#=> <urn:VehicleDescriptionRequest>
#=> <urn:accountInfo number="test" secret="test" country="US" language="en" behalfOf="test"/>
#=> <!--You have a CHOICE of the next 3 items at this level-->
#=> <!--Optional:-->
#=> <urn:styleId>test</urn:styleId>
#=> <urn:switch>ShowAvailableEquipment</urn:switch>
#=> <urn:includeMediaGallery>Both</urn:includeMediaGallery>
#=> </urn:VehicleDescriptionRequest>
#=> </soapenv:Body>
#=> </soapenv:Envelope>
The exception you were seeing was due to how you were trying to create the attributes of the accountInfo node. Note that the attributes should be passed as arguments to the send method:
xml.send("urn:accountInfo", "number"=>"#{number}", "secret"=>"#{secret}", "country"=>"US", "language"=>"en", "behalfOf"=>"#{behalfOf}")
The same can be done to get the attributes on the Envelope node:
xml.send("soapenv:Envelope", 'xmlns:soapenv' => "http://schemas.xmlsoap.org/soap/envelope/", 'xmlns:urn' => "urn:description7a.services.chrome.com")
Finally, to get the comments, use the comment method:
xml.comment('You have a CHOICE of the next 3 items at this level')
xml.comment('Optional:')