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add each scales system in option_value_namer.rb

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Andy Brett
2020-08-07 20:23:04 -07:00
parent e5e7e12a32
commit 9b9b6ded09
1 changed files with 25 additions and 16 deletions
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41
lib/open_food_network/option_value_namer.rb
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@@ -63,25 +63,34 @@ module OpenFoodNetwork
end
def scale_for_unit_value
# TODO: We _think_ this will cause the following weird results:
# 29g of product would use the `oz` measurement
# 445g of product would use the `lb` measurement
# So we probably want to keep the metric and imperial measures
# in their own lanes; perhaps using a configurable value on a per
# shop or producer basis?
units = {
'weight' => {
1.0 => { 'name' => 'g', 'system' => 'metric' },
28.34952 => { 'name' => 'oz', 'system' => 'imperial' },
453.6 => { 'name' => 'lb', 'system' => 'imperial' },
1000.0 => { 'name' => 'kg', 'system' => 'metric' },
1_000_000.0 => { 'name' => 'T', 'system' => 'metric' }
},
'volume' => {
0.001 => { 'name' => 'mL', 'system' => 'metric' },
1.0 => { 'name' => 'L', 'system' => 'metric' },
1000.0 => { 'name' => 'kL', 'system' => 'metric' }
}
}
units = { 'weight' => { 1.0 => 'g', 1000.0 => 'kg', 1_000_000.0 => 'T',
28.34952 => 'oz', 453.6 => 'lb'},
'volume' => { 0.001 => 'mL', 1.0 => 'L', 1000.0 => 'kL' } }
# Find the largest available unit where unit_value comes to >= 1 when expressed in it.
# Find the largest available and compatible unit where unit_value comes
# to >= 1 when expressed in it.
# If there is none available where this is true, use the smallest available unit.
unit = units[@variant.product.variant_unit].select { |scale, _unit_name|
@variant.unit_value / scale >= 1
}.to_a.last
unit = units[@variant.product.variant_unit].first if unit.nil?
scales = units[@variant.product.variant_unit]
product_scale = @variant.product.variant_unit_scale
product_scale_system = scales[product_scale.to_f]['system']
largest_unit = scales.select { |scale, unit_info|
unit_info['system'] == product_scale_system &&
@variant.unit_value/scale >= 1
}.sort.last
largest_unit = units[@variant.product.variant_unit].first if largest_unit.nil?
unit
[largest_unit[0], largest_unit[1]["name"]]
end
def pluralize(unit_name, count)