Class: Charty::TableAdapters::DatasetsAdapter

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/charty/table_adapters/datasets_adapter.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(dataset) ⇒ DatasetsAdapter

Returns a new instance of DatasetsAdapter.



13
14
15
16
 
# File 'lib/charty/table_adapters/datasets_adapter.rb', line 13

def initialize(dataset)
  @table = dataset.to_table
  @records = []
end

Class Method Details

.supported?(data) ⇒ Boolean

Returns:

  • (Boolean) 


8
9
10
11
 
# File 'lib/charty/table_adapters/datasets_adapter.rb', line 8

def self.supported?(data)
  defined?(Datasets::Dataset) &&
    data.is_a?(Datasets::Dataset)
end

Instance Method Details

#[](row, column) ⇒ Object

Parameters:

  • row (Integer) —

    Row index

  • column (Symbol, String, Integer) —

    Column index



34
35
36
37
38
39
40
41
42
 
# File 'lib/charty/table_adapters/datasets_adapter.rb', line 34

def [](row, column)
  if row
    record = @table.find_record(row)
    return nil if record.nil?
    record[column]
  else
    @table[column]
  end
end

#column_names ⇒ Object 



22
23
24
 
# File 'lib/charty/table_adapters/datasets_adapter.rb', line 22

def column_names
  @table.column_names
end

#data ⇒ Object 



18
19
20
 
# File 'lib/charty/table_adapters/datasets_adapter.rb', line 18

def data
  @table
end

#each(&block) ⇒ Object 



26
27
28
29
30
 
# File 'lib/charty/table_adapters/datasets_adapter.rb', line 26

def each(&block)
  return to_enum(__method__) unless block_given?

  @table.each_record(&block)
end