add ounces and round up for lbs

app/assets/javascripts/admin/products/services/variant_unit_manager.js.coffee

@@ -4,15 +4,9 @@ angular.module("admin.products").factory "VariantUnitManager", ->
       'weight':
         1.0: 'g'
         1000.0: 'kg'
-        1000000.0: 'T',
-        # This appears to be what needs to be set in order for
-        # products to have a mass value stored in the database
-        # when they are created. However, it does not appear to
-        # change the existing product(s), so if the scale value
-        # is changed, a data migration may be necessary to make sure
-        # the proper unit X to grams actually works.
-        # TODO: ^^^ Delete this
-        453.592: 'lb'
+        1000000.0: 'T'
+        453.6: 'lb'
+        28.34952: 'oz'
       'volume':
         0.001: 'mL'
         1.0: 'L'

app/models/product_import/unit_converter.rb

@@ -32,10 +32,8 @@ module ProductImport
       {
         'g' => { scale: 1, unit: 'weight' },
         'kg' => { scale: 1000, unit: 'weight' },
-        # We have _no idea_ what this is doing. It has units?
-        # And it maybe is connected to something related to shipping?
-        # TODO: DELETE THIS ^^^
-        'lb' => { scale: 453.592, unit: 'weight' },
+        'oz' => { scale: 28.34952, unit: 'weight' },
+        'lb' => { scale: 453.6, unit: 'weight' },
         't' => { scale: 1_000_000, unit: 'weight' },
         'ml' => { scale: 0.001, unit: 'volume' },
         'l' => { scale: 1, unit: 'volume' },

lib/open_food_network/option_value_namer.rb

@@ -71,7 +71,7 @@ module OpenFoodNetwork
       # shop or producer basis?
 
       units = { 'weight' => { 1.0 => 'g', 1000.0 => 'kg', 1_000_000.0 => 'T',
-                              28.34952 => 'oz', 453.59237 => 'lb'},
+                              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.