WIP: BOM Refactor, building line_item fetch and update logic with ngResource

app/assets/javascripts/admin/all.js

@@ -28,6 +28,7 @@
 //= require ./enterprises/enterprises
 //= require ./enterprise_groups/enterprise_groups
 //= require ./index_utils/index_utils
+//= require ./line_items/line_items
 //= require ./orders/orders
 //= require ./payment_methods/payment_methods
 //= require ./products/products

app/assets/javascripts/admin/line_items/directives/confirm_change.js.coffee

@@ -0,0 +1,19 @@
+# Used with the ngChange directive to prevent updates to the relevant model unless a callback returns true
+angular.module("admin.lineItems").directive "confirmChange", ->
+  restrict: "A"
+  require: 'ngModel'
+  scope:
+    confirmChange: "&"
+  link: (scope, element, attrs, ngModel) ->
+    valid = null
+
+    ngModel.$parsers.push (val) =>
+      return val if val == valid
+      if scope.confirmChange()
+        # ngModel is changed, triggers ngChange callback
+        return valid = val
+      else
+        valid = ngModel.$modelValue
+        ngModel.$setViewValue(valid)
+        ngModel.$render()
+        return valid

app/assets/javascripts/admin/line_items/directives/confirm_model_change.js.coffee

@@ -0,0 +1,6 @@
+angular.module("ofn.admin").directive "ofnConfirmModelChange", (ofnConfirmHandler,$timeout) ->
+  restrict: "A"
+  link: (scope, element, attrs) ->
+    handler = ofnConfirmHandler scope, -> scope.fetchOrders()
+    scope.$watch attrs.ngModel, (oldValue,newValue) ->
+      handler() unless oldValue == undefined || newValue == oldValue

app/assets/javascripts/admin/line_items/filters/select_filter.js.coffee

@@ -0,0 +1,7 @@
+angular.module("admin.lineItems").filter "selectFilter", (blankOption) ->
+    return (lineItems,selectedSupplier,selectedDistributor,selectedOrderCycle) ->
+      filtered = []
+      filtered.push lineItem for lineItem in lineItems when (angular.equals(selectedSupplier,"0") || lineItem.supplier.id == selectedSupplier) &&
+        (angular.equals(selectedDistributor,"0") || lineItem.order.distributor.id == selectedDistributor) &&
+        (angular.equals(selectedOrderCycle,"0") || lineItem.order.order_cycle.id == selectedOrderCycle)
+      filtered

app/assets/javascripts/admin/line_items/filters/variant_filter.js.coffee

@@ -0,0 +1,6 @@
+angular.module("admin.lineItems").filter "variantFilter", ->
+    return (lineItems,selectedUnitsProduct,selectedUnitsVariant,sharedResource) ->
+      filtered = []
+      filtered.push lineItem for lineItem in lineItems when (angular.equals(selectedUnitsProduct,{}) ||
+        (lineItem.units_product.id == selectedUnitsProduct.id && (sharedResource || lineItem.units_variant.id == selectedUnitsVariant.id ) ) )
+      filtered

app/assets/javascripts/admin/line_items/line_items.js.coffee

@@ -0,0 +1 @@
+angular.module("admin.lineItems", ["admin.indexUtils", "admin.lineItems", "admin.enterprises", "admin.order_cycles"])

app/assets/javascripts/admin/line_items/services/line_item_resource.js.coffee

@@ -0,0 +1,12 @@
+angular.module("admin.lineItems").factory 'LineItemResource', ($resource) ->
+  $resource('/admin/:orders/:order_number/line_items/:id.json', {}, {
+    'index':
+      method: 'GET'
+      isArray: true
+    'update':
+      method: 'PUT'
+      transformRequest: (data, headersGetter) =>
+        requestData = {}
+        requestData[attr] = data[attr] for attr in ["price", "quantity", "final_weight_volume"]
+        angular.toJson(requestData)
+  })

app/assets/javascripts/admin/line_items/services/line_items.js.coffee

@@ -0,0 +1,48 @@
+angular.module("admin.lineItems").factory 'LineItems', ($q, LineItemResource) ->
+  new class LineItems
+    lineItemsByID: {}
+    pristineByID: {}
+
+    index: (params={}, callback=null) ->
+    	LineItemResource.index params, (data) =>
+        @resetData()
+        for lineItem in data
+          @lineItemsByID[lineItem.id] = lineItem
+          @pristineByID[lineItem.id] = angular.copy(lineItem)
+
+        (callback || angular.noop)(data)
+
+    resetData: ->
+      @lineItemsByID = {}
+      @pristineByID = {}
+
+    saveAll: ->
+      for id, lineItem of @lineItemsByID when !@isSaved(lineItem)
+        @save(lineItem)
+
+    save: (lineItem) ->
+      deferred = $q.defer()
+      lineItem.$update({id: lineItem.id, orders: "orders", order_number: lineItem.order.number})
+      .then( (data) =>
+        @pristineByID[lineItem.id] = angular.copy(lineItem)
+        deferred.resolve(data)
+      ).catch (response) ->
+        deferred.reject(response)
+      deferred.promise
+
+    allSaved: ->
+      for id, lineItem of @lineItemsByID
+        return false unless @isSaved(lineItem)
+      true
+
+    isSaved: (lineItem) ->
+      @diff(lineItem).length == 0
+
+    diff: (lineItem) ->
+      changed = []
+      for attr, value of lineItem when not angular.equals(value, @pristineByID[lineItem.id][attr])
+        changed.push attr if attr in ["price", "quantity", "final_weight_volume"]
+      changed
+
+    resetAttribute: (lineItem, attribute) ->
+      lineItem[attribute] = @pristineByID[lineItem.id][attribute]