Class: MsPivot::Table

Inherits:
Object
  • Object
show all
Defined in:
lib/ms_pivot/table.rb

Overview

The table to pivot

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(orig_array, row_index, col_index, *measures) ⇒ Table

Returns a new instance of Table.



10
11
12
13
14
15
16
17
18
19
20
 
# File 'lib/ms_pivot/table.rb', line 10

def initialize(orig_array, row_index, col_index, *measures)
  @data = {}
  @column_headers = nil
  @row_index = row_index
  @col_index = col_index
  @measures = measures
  @orig_array = orig_array
  @orig_array

  compile(@orig_array)
end

Instance Attribute Details

#column_headers ⇒ Object

Returns the value of attribute column_headers.



8
9
10
 
# File 'lib/ms_pivot/table.rb', line 8

def column_headers
  @column_headers
end

Instance Method Details

#each ⇒ Object 



27
28
29
30
31
 
# File 'lib/ms_pivot/table.rb', line 27

def each
  @data.each do |row_header, columns|
    yield row_header, columns
  end
end

#inspect ⇒ Object 



45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
 
# File 'lib/ms_pivot/table.rb', line 45

def inspect
  result = "\t"
  self.column_headers.each do |header|
    result << "\t#{header}"
  end
  result << "\n"
    
  self.each do |row_header, columns|
    result << row_header.to_s
    columns.each do |col_header, values|
      result << "\t" + (values.empty? ? "-" : "#{values.join(",")}")
    end
    result << "\n"
  end
  result
end

#row_headers ⇒ Object 



33
34
35
 
# File 'lib/ms_pivot/table.rb', line 33

def row_headers
  @data.keys
end

#to_a ⇒ Object 



37
38
39
40
41
42
43
 
# File 'lib/ms_pivot/table.rb', line 37

def to_a
  result = []
  self.each do |row_header, columns|
    result << Array(row_header) + columns.to_a
  end
  result
end