如何将 Ruby 哈希转换为 XML？
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How do I convert a Ruby hash to XML?
提问by Shpigford
Here is the specific XML I ultimately need:
这是我最终需要的特定 XML：
<?xml version="1.0" encoding="UTF-8"?>
<customer>
<email>[email protected]</email>
<first_name>Joe</first_name>
<last_name>Blow</last_name>
</customer>
But say I have a controller (Ruby on Rails) that is sending the data to a method. I'd prefer to send it as a hash, like so:
但是假设我有一个控制器（Ruby on Rails）将数据发送到一个方法。我更愿意将它作为散列发送，如下所示：
:first_name => 'Joe',
:last_name => 'Blow',
:email => '[email protected]'
So, how can I convert the hash to that XML format?
那么，如何将哈希转换为该 XML 格式？
回答by ry.
ActiveSupport adds a to_xmlmethod to Hash, so you can get pretty close to what you are looking for with this:
ActiveSupportto_xml向 Hash添加了一个方法，因此您可以非常接近您正在寻找的内容：
sudo gem install activesupport
require "active_support/core_ext"
my_hash = { :first_name => 'Joe', :last_name => 'Blow', :email => '[email protected]'}
my_hash.to_xml(:root => 'customer')
And end up with:
最后得到：
<?xml version="1.0" encoding="UTF-8"?>
<customer>
<last-name>Blow</last-name>
<first-name>Joe</first-name>
<email>[email protected]</email>
</customer>
Note that the underscores are converted to dashes.
请注意，下划线将转换为破折号。
回答by vk26
Gem gyokuvery nice.
Gem gyoku非常好。
Gyoku.xml(:lower_camel_case => "key")
# => "<lowerCamelCase>key</lowerCamelCase>"
Gyoku.xml({ :camel_case => "key" }, { :key_converter => :camelcase })
# => "<CamelCase>key</CamelCase>"
Gyoku.xml({ acronym_abc: "value" }, key_converter: lambda { |key| key.camelize(:lower) })
# => "<acronymABC>value</acronymABC>"
and more useful options.
和更多有用的选项。
