Module: KuaiJieQian::Utils

Defined in:
lib/kuai_jie_qian/utils.rb

Class Method Summary collapse

Class Method Details

.html_to_pdf(html_file_stream) ⇒ Object 



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# File 'lib/kuai_jie_qian/utils.rb', line 19

def self.html_to_pdf(html_file_stream)
  kit = PDFKit.new(html_file_stream)
  kit.to_pdf
end

.pdf_to_png(file) ⇒ Object 



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# File 'lib/kuai_jie_qian/utils.rb', line 24

def self.pdf_to_png(file)
  pdf = Grim.reap(file)
  png = pdf[0].save(file.split(".").first + '.png',
                    {:quality => 90, :alpha => "remove", :colorspace => "RGB"}
                  )

end

.symbolize_keys(hash) ⇒ Hash

把 hash 中的 key，都转化为 symbol 类型

Parameters:

  • hash (Hash) —

    需要更改的 hash

Returns:

  • (Hash) —

    更改后的 hash



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# File 'lib/kuai_jie_qian/utils.rb', line 11

def self.symbolize_keys(hash)
  new_hash = {}
  hash.each do |key, value|
    new_hash[(key.to_sym rescue key) || key] = value
  end
  new_hash
end