app/assets/javascripts/admin/products/controllers/units_controller.js.coffee
# Controller for "New Products" form (spree/admin/products/new)
angular.module("admin.products")
.controller "unitsCtrl", ($scope, VariantUnitManager, OptionValueNamer, UnitPrices, PriceParser) ->
$scope.product = { master: {} }
$scope.product.master.product = $scope.product
$scope.placeholder_text = ""
$scope.$watchCollection '[product.variant_unit_with_scale, product.master.unit_value_with_description, product.price, product.variant_unit_name]', ->
$scope.processVariantUnitWithScale()
$scope.processUnitValueWithDescription()
$scope.processUnitPrice()
$scope.placeholder_text = new OptionValueNamer($scope.product.master).name() if $scope.product.variant_unit_scale
$scope.variant_unit_options = VariantUnitManager.variantUnitOptions()
# Extract variant_unit and variant_unit_scale from dropdown variant_unit_with_scale,
# and update hidden product fields
$scope.processVariantUnitWithScale = ->
if $scope.product.variant_unit_with_scale
match = $scope.product.variant_unit_with_scale.match(/^([^_]+)_([\d\.]+)$/) # matches string like "weight_1000"
if match
$scope.product.variant_unit = match[1]
$scope.product.variant_unit_scale = parseFloat(match[2])
else # "items"
$scope.product.variant_unit = $scope.product.variant_unit_with_scale
$scope.product.variant_unit_scale = null
else if $scope.product.variant_unit
# Preserves variant_unit_with_scale when form validation fails and reload triggers
if $scope.product.variant_unit_scale
$scope.product.variant_unit_with_scale = VariantUnitManager.getUnitWithScale(
$scope.product.variant_unit, parseFloat($scope.product.variant_unit_scale)
)
else
$scope.product.variant_unit_with_scale = $scope.product.variant_unit
else
$scope.product.variant_unit = $scope.product.variant_unit_scale = null
# Extract unit_value and unit_description from text field unit_value_with_description,
# and update hidden variant fields
$scope.processUnitValueWithDescription = ->
if $scope.product.master.hasOwnProperty("unit_value_with_description")
match = $scope.product.master.unit_value_with_description.match(/^([\d\.,]+(?= *|$)|)( *)(.*)$/)
if match
$scope.product.master.unit_value = PriceParser.parse(match[1])
$scope.product.master.unit_value = null if isNaN($scope.product.master.unit_value)
$scope.product.master.unit_value = window.bigDecimal.multiply($scope.product.master.unit_value, $scope.product.variant_unit_scale, 2) if $scope.product.master.unit_value && $scope.product.variant_unit_scale
$scope.product.master.unit_description = match[3]
else
value = $scope.product.master.unit_value
value = window.bigDecimal.divide(value, $scope.product.variant_unit_scale, 2) if $scope.product.master.unit_value && $scope.product.variant_unit_scale
$scope.product.master.unit_value_with_description = value + " " + $scope.product.master.unit_description
# Calculate unit price based on product price and variant_unit_scale
$scope.processUnitPrice = ->
price = $scope.product.price
scale = $scope.product.variant_unit_scale
unit_type = $scope.product.variant_unit
unit_value = $scope.product.master.unit_value
variant_unit_name = $scope.product.variant_unit_name
$scope.unit_price = UnitPrices.displayableUnitPrice(price, scale, unit_type, unit_value, variant_unit_name)
$scope.hasVariants = (product) ->
Object.keys(product.variants).length > 0
$scope.hasUnit = (product) ->
product.variant_unit_with_scale?