Class: RDBI::Result::Driver::JSON

Inherits:
RDBI::Result::Driver
  • Object
show all
Defined in:
lib/rdbi/result/driver/json.rb

Instance Method Summary collapse

Constructor Details

#initialize(result, *args) ⇒ JSON

Returns a new instance of JSON.



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# File 'lib/rdbi/result/driver/json.rb', line 4

def initialize(result, *args)
  super

  @as_object = false

  if args[0].kind_of?(Hash) 
    @as_object = args[0][:as_hash] || args[0][:as_object]
  end
end

Instance Method Details

#fetch(row_count) ⇒ Object 



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# File 'lib/rdbi/result/driver/json.rb', line 14

def fetch(row_count)
  if @as_object
    obj_hash = { }
    index    = []
    results  = []

    @result.schema.columns.map(&:name).each { |name| index.push(name); obj_hash[name] = nil }

    if [:first, :last].include?(row_count)
      my_hash = obj_hash.dup
      @result.raw_fetch(row_count)[0].each_with_index do |col, i|
        my_hash[index[i]] = col
      end
      return ::JSON.dump(my_hash)
    else
      @result.raw_fetch(row_count).each do |row|
        my_hash = obj_hash.dup
        row.each_with_index do |col, i|
          my_hash[index[i]] = col
        end
        results.push my_hash
      end

      File.open('/tmp/foo', 'w') << results.inspect
      return ::JSON.dump(results)
    end

  else
    if [:first, :last].include?(row_count)
      return ::JSON.dump(@result.raw_fetch(row_count)[0])
    else
      return ::JSON.dump(@result.raw_fetch(row_count))
    end
  end
end