Class: ArticleUnitsLib

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

Constant Summary collapse

DEFAULT_PIECE_UNIT_CODES = 
%w[PTN STC XCU XCN XSH X43 XST XOK XVA XBX XBH XBE XCX XBJ XUN XOS XDH XBA XFI XBO XBQ XFB XFT XJR XGR XOW X8B XCV XWA XEI XJT XGY XJY XBD XCR XAI XPA XBK XBI XOV XNT XPK XPC XPX X5M XPR XEC X6H X44 XBR XCW XBT XSA XBM XSX XDN XAE XSC XLU X5L XPP XPU XBG XP2 XCK XPT XGI XTU]
DEFAULT_METRIC_SCALAR_UNIT_CODES = 
%w[KGM HGM DJ GRM LTR DLT CLT MLT]
DEFAULT_IMPERIAL_SCALAR_UNIT_CODES = 
%w[LBR ONZ GLL QTI PTI]

Class Method Summary collapse

Class Method Details

.convert_old_unit(old_compound_unit_str, unit_quantity) ⇒ Object 



111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
 
# File 'lib/article_units_lib.rb', line 111

def self.convert_old_unit(old_compound_unit_str, unit_quantity)
  return nil if old_compound_unit_str.nil?

  md = old_compound_unit_str.match(/([0-9]*)x(.*)/)
  old_compound_unit_str = md[2] if !md.nil? && md[1].to_f == unit_quantity

  md = old_compound_unit_str.match(%r{^\s*([0-9][0-9,./]*)?\s*([A-Za-z\u00C0-\u017F.]+)\s*$})
  return nil if md.nil?

  unit = get_unit_from_old_str(md[2])
  return nil if unit.nil?

  quantity = get_quantity_from_old_str(md[1])

  if quantity == 1 && unit_quantity == 1
    {
      supplier_order_unit: unit,
      first_ratio: nil,
      group_order_granularity: 1.0,
      group_order_unit: unit
    }
  else
    supplier_order_unit = unit.starts_with?('X') && unit != 'XPK' ? 'XPK' : 'XPP'
    {
      supplier_order_unit: supplier_order_unit,
      first_ratio: {
        quantity: quantity * unit_quantity,
        unit: unit
      },
      group_order_granularity: unit_quantity > 1 ? quantity : 1.0,
      group_order_unit: unit_quantity > 1 ? unit : supplier_order_unit
    }
  end
end

.get_code_for_unit_name(name) ⇒ Object 



95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
 
# File 'lib/article_units_lib.rb', line 95

def self.get_code_for_unit_name(name)
  return nil if name.blank?

  translation = unit_translations&.dig('unece_units')&.find do |_code, translations|
    translations['name'] == name
  end

  return translation[0] unless translation.nil?

  matching_unit = units.find do |_code, unit|
    unit[:name] == name
  end

  matching_unit[0]
end

.get_quantity_from_old_str(quantity_str) ⇒ Object 



146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
 
# File 'lib/article_units_lib.rb', line 146

def self.get_quantity_from_old_str(quantity_str)
  return 1 if quantity_str.nil?

  quantity_str = quantity_str
                 .gsub(',', '.')
                 .gsub(' ', '')

  division_parts = quantity_str.split('/').map(&:to_f)

  if division_parts.length == 2
    division_parts[0] / division_parts[1]
  else
    quantity_str.to_f
  end
end

.get_translated_aliases_for_code(code) ⇒ Object 



89
90
91
92
93
 
# File 'lib/article_units_lib.rb', line 89

def self.get_translated_aliases_for_code(code)
  return nil if code.blank?

  unit_translations&.dig('unece_units', code, 'aliases')
end

.get_translated_name_for_code(code, default_nil: false) ⇒ Object 



77
78
79
80
81
 
# File 'lib/article_units_lib.rb', line 77

def self.get_translated_name_for_code(code, default_nil: false)
  return nil if code.blank?

  unit_translations&.dig('unece_units', code, 'name') || (default_nil ? nil : untranslated_units[code][:name])
end

.get_translated_symbol_for_code(code) ⇒ Object 



83
84
85
86
87
 
# File 'lib/article_units_lib.rb', line 83

def self.get_translated_symbol_for_code(code)
  return nil if code.blank?

  unit_translations&.dig('unece_units', code, 'symbols', 0) || untranslated_units[code][:symbol]
end

.get_unit_from_old_str(old_unit_str) ⇒ Object 



162
163
164
165
166
167
168
169
170
171
 
# File 'lib/article_units_lib.rb', line 162

def self.get_unit_from_old_str(old_unit_str)
  unit_str = old_unit_str.strip.downcase
  units = ArticleUnitsLib.untranslated_units
                         .sort { |a, b| sort_by_translation_state(a[1], b[1]) }
  matching_unit_arr = units.select { |key, unit| matches_unit(key, unit, unit_str) }
                           .to_a
  return nil if matching_unit_arr.empty?

  matching_unit_arr[0][0]
end

.human_readable_unit(unit_code) ⇒ Object 



72
73
74
75
 
# File 'lib/article_units_lib.rb', line 72

def self.human_readable_unit(unit_code)
  unit = units.to_h[unit_code]
  unit[:symbol] || unit[:name]
end

.matches_unit(unit_code, unit, unit_str) ⇒ Object 



180
181
182
183
184
185
186
187
188
189
190
191
192
 
# File 'lib/article_units_lib.rb', line 180

def self.matches_unit(unit_code, unit, unit_str)
  return true if unit[:symbol] == unit_str

  translation_data = unit_translations&.dig('unece_units', unit_code)

  return true if translation_data&.dig('symbols')&.include?(unit_str)

  name = translation_data&.dig('name')&.downcase
  return true if !name.nil? && name == unit_str

  aliases = translation_data&.dig('aliases')&.map { |a| a.strip.downcase }
  !aliases.nil? && aliases.any? { |a| a == unit_str || "#{a}." == unit_str }
end

.sort_by_translation_state(unit_a, unit_b) ⇒ Object 



173
174
175
176
177
178
 
# File 'lib/article_units_lib.rb', line 173

def self.sort_by_translation_state(unit_a, unit_b)
  return -1 if unit_a[:translation_available] && !unit_b[:translation_available]
  return 1 if unit_b[:translation_available] && !unit_a[:translation_available]

  0
end

.unit_is_si_convertible(code) ⇒ Object 



68
69
70
 
# File 'lib/article_units_lib.rb', line 68

def self.unit_is_si_convertible(code)
  !units[code]&.dig(:conversionFactor).nil?
end

.unit_translations ⇒ Object 



41
42
43
44
45
46
47
48
49
 
# File 'lib/article_units_lib.rb', line 41

def self.unit_translations
  @unit_translations = {} if @unit_translations.nil?
  unit_translations_cached_in_current_locale = @unit_translations[I18n.locale]
  return unit_translations_cached_in_current_locale unless unit_translations_cached_in_current_locale.nil?

  @unit_translations[I18n.locale] = YAML.safe_load(ERB.new(File.read(File.expand_path(
                                                                       "config/units-of-measure/locales/unece_#{I18n.locale}.yml", Rails.root
                                                                     ))).result) || {}
end

.units ⇒ Object 



51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
 
# File 'lib/article_units_lib.rb', line 51

def self.units
  @units = {} if @units.nil?
  units_cached_in_current_locale = @units[I18n.locale]
  return units_cached_in_current_locale unless units_cached_in_current_locale.nil?

  @units[I18n.locale] = untranslated_units.to_h do |code, untranslated_unit|
    translated_name = ArticleUnitsLib.get_translated_name_for_code(code, default_nil: true)
    unit = untranslated_unit.clone
    unit[:name] = translated_name || unit[:name]
    unit[:untranslated] = translated_name.nil?
    unit[:symbol] = ArticleUnitsLib.get_translated_symbol_for_code(code)
    unit[:aliases] = ArticleUnitsLib.get_translated_aliases_for_code(code)

    [code, unit]
  end
end

.untranslated_units ⇒ Object 



12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/article_units_lib.rb', line 12

def self.untranslated_units
  return @untranslated_units unless @untranslated_units.nil?

  options = {}

  @un_ece_20_units.each do |unit|
    code = unit['CommonCode']
    base_unit = unit['conversion']['base_units'].nil? ? nil : unit['conversion']['base_units'][0]
    options[code] =
      { name: unit['Name'], description: unit['Description'], baseUnit: base_unit,
        conversionFactor: unit['conversion']['factor'], symbol: unit['Symbol'] }
  end

  @un_ece_21_units.each do |unit|
    code = 'X' + unit['Code']
    name = unit['Name']
    name[0] = name[0].downcase

    options[code] =
      { name: name, description: unit['Description'], baseUnit: nil, conversionFactor: nil, symbol: unit['Symbol'] }
  end

  options.each do |code, option|
    option[:translation_available] = !ArticleUnitsLib.get_translated_name_for_code(code, default_nil: true).nil?
  end

  @untranslated_units = options
end