method

load

Ruby latest stable (v2_5_5) - 0 notes - Class: CSV

1_8_6_287
1_8_7_72
1_8_7_330
1_9_1_378 (0)
1_9_2_180 (0)
1_9_3_125 (0)
1_9_3_392 (0)
2_1_10
2_2_9
2_4_6
2_5_5
2_6_3
What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v1_9_3_392) is shown here.

These similar methods exist in v2_5_5:

load(io_or_str, options = Hash.new) public

This method is the reading counterpart to CSV::dump(). See that method for a detailed description of the process.

You can customize loading by adding a class method called csv_load() which will be passed a Hash of meta information, an Array of headers, and an Array of fields for the object the method is expected to return.

Remember that all fields will be Strings after this load. If you need something else, use options to setup converters or provide a custom csv_load() implementation.

Show source

# File lib/csv.rb, line 1105
  def self.load(io_or_str, options = Hash.new)
    csv = new(io_or_str, options)

    # load meta information
    meta = Hash[*csv.shift]
    cls  = meta["class".encode(csv.encoding)].split("::".encode(csv.encoding)).
                                              inject(Object) do |c, const|
      c.const_get(const)
    end

    # load headers
    headers = csv.shift

    # unserialize each object stored in the file
    results = csv.inject(Array.new) do |all, row|
      begin
        obj = cls.csv_load(meta, headers, row)
      rescue NoMethodError
        obj = cls.allocate
        headers.zip(row) do |name, value|
          if name[0] == @@
            obj.instance_variable_set(name, value)
          else
            obj.send(name, value)
          end
        end
      end
      all << obj
    end

    csv.close unless io_or_str.is_a? String

    results
  end

load

Related methods

Method deprecated or moved

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