Class: AsCSV::CSVBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/as_csv/csv_builder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(records, options = {}) ⇒ CSVBuilder

Returns a new instance of CSVBuilder.



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# File 'lib/as_csv/csv_builder.rb', line 5

def initialize(records, options={})
  @records = [*records]
  @options = options
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/as_csv/csv_builder.rb', line 3

def options
  @options
end

#records ⇒ Object (readonly)

Returns the value of attribute records.



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# File 'lib/as_csv/csv_builder.rb', line 3

def records
  @records
end

Instance Method Details

#data_rows ⇒ Object 



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# File 'lib/as_csv/csv_builder.rb', line 22

def data_rows
  @data_rows ||= csv_hashes.collect { |csv_hash| data_row csv_hash } if valid?
end

#headers ⇒ Object 



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# File 'lib/as_csv/csv_builder.rb', line 18

def headers
  @headers ||= csv_hashes.collect(&:keys).flatten.uniq if valid?
end

#rows ⇒ Object 



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# File 'lib/as_csv/csv_builder.rb', line 14

def rows
  @rows ||= [headers] + data_rows if valid?
end

#to_csv ⇒ Object 



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# File 'lib/as_csv/csv_builder.rb', line 10

def to_csv
  rows.collect { |row| CSVProxy.generate_line row }.join if valid?
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/as_csv/csv_builder.rb', line 26

def valid?
  csv_hashes.any? && validate_hashes!
end