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lib/yaml/store.rb

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require 'yaml'

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require 'pstore'

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# YAML::Store provides the same functionality as PStore, except it uses YAML

 

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# to dump objects instead of Marshal.

 

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#

 

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# == Example

 

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#

 

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#   require 'yaml/store'

 

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#

 

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#   Person = Struct.new :first_name, :last_name

 

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#

 

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#   people = [Person.new("Bob", "Smith"), Person.new("Mary", "Johnson")]

 

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#

 

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#   store = YAML::Store.new "test.store"

 

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#

 

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#   store.transaction do

 

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#     store["people"] = people

 

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#     store["greeting"] = { "hello" => "world" }

 

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#   end

 

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#

 

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# After running the above code, the contents of "test.store" will be:

 

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#

 

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#   ---

 

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#   people:

 

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#   - !ruby/struct:Person

 

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#     first_name: Bob

 

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#     last_name: Smith

 

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#   - !ruby/struct:Person

 

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#     first_name: Mary

 

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#     last_name: Johnson

 

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#   greeting:

 

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#     hello: world

 

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class YAML::Store < PStore

 

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  # :call-seq:

 

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  #   initialize( file_name, yaml_opts = {} )

 

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  #

 

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  # Creates a new YAML::Store object, which will store data in +file_name+.

 

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  # If the file does not already exist, it will be created.

 

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  #

 

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  #

 

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  # Options passed in through +yaml_opts+ will be used when converting the

 

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  # store to YAML via Hash#to_yaml().

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  def initialize( *o )

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    @opt = {}

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    if String === o.first

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    end

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  end

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  # :stopdoc:

 

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  def dump(table)

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    @table.to_yaml(@opt)

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  end

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