0039094: Do not allow to delete discretionary discounts in a complete receipt.

# HG changeset patch
# User Ranjith S R <ranjith@qualiantech.com>
# Date 1534414942 -19800
#      Thu Aug 16 15:52:22 2018 +0530
# Node ID a0554f719086de60bd1096c71b07ae36386dd456
# Parent  9ed009c5b16d9a35b8291e87294d0bca48d6602d
Fixed issue 39094 RR17Q1 : Hide Edit Tab Remove Discount Button if order is not editable

diff -r 9ed009c5b16d -r a0554f719086 web/org.openbravo.retail.posterminal/js/pointofsale/view/editline.js
--- a/web/org.openbravo.retail.posterminal/js/pointofsale/view/editline.js	Tue Mar 14 05:08:42 2017 +0000
+++ b/web/org.openbravo.retail.posterminal/js/pointofsale/view/editline.js	Thu Aug 16 15:52:22 2018 +0530
@@ -619,26 +619,33 @@
         this.$.actionButtonsContainer.$.descriptionButton.hide();
         this.$.actionButtonsContainer.$.splitlineButton.hide();
       }
-      var promotions = false;
-      if (this.selectedModels) {
-        _.each(this.selectedModels, function (lineModel) {
-          if (lineModel.get('promotions') && lineModel.get('promotions').length > 0) {
-            var filtered;
-            filtered = _.filter(lineModel.get('promotions'), function (prom) {
-              //discrectionary discounts ids
-              return prom.discountType === '20E4EC27397344309A2185097392D964' || prom.discountType === 'D1D193305A6443B09B299259493B272A' || prom.discountType === '8338556C0FBF45249512DB343FEFD280' || prom.discountType === '7B49D8CC4E084A75B7CB4D85A6A3A578';
-            }, this);
-            if (filtered.length === lineModel.get('promotions').length) {
-              //lines with just discrectionary discounts can be removed.
-              promotions = true;
+      if (this.$.actionButtonsContainer.$.removeDiscountButton) {
+        var promotions = false,
+            hasEditableLines = true;
+        if (this.receipt && this.selectedModels) {
+          _.each(this.selectedModels, function (lineModel) {
+            if (!hasEditableLines) {
+              promotions = false;
+              return false;
             }
-          }
-        });
-      }
-      if (promotions) {
-        this.$.actionButtonsContainer.$.removeDiscountButton.show();
-      } else {
-        this.$.actionButtonsContainer.$.removeDiscountButton.hide();
+            hasEditableLines = this.receipt.get('isEditable') && (OB.UTIL.isNullOrUndefined(lineModel.get('originalOrderLineId')) ? true : false);
+            if (hasEditableLines && lineModel.get('promotions') && lineModel.get('promotions').length > 0) {
+              var filtered = _.filter(lineModel.get('promotions'), function (prom) {
+                //discrectionary discounts ids
+                return prom.discountType === '20E4EC27397344309A2185097392D964' || prom.discountType === 'D1D193305A6443B09B299259493B272A' || prom.discountType === '8338556C0FBF45249512DB343FEFD280' || prom.discountType === '7B49D8CC4E084A75B7CB4D85A6A3A578';
+              }, this);
+              if (filtered.length === lineModel.get('promotions').length) {
+                //lines with just discrectionary discounts can be removed.
+                promotions = true;
+              }
+            }
+          }, this);
+        }
+        if (promotions) {
+          this.$.actionButtonsContainer.$.removeDiscountButton.show();
+        } else {
+          this.$.actionButtonsContainer.$.removeDiscountButton.hide();
+        }
       }
       if ((!_.isUndefined(line) && !_.isUndefined(line.get('originalOrderLineId'))) || this.model.get('order').get('orderType') === 1 || this.model.get('order').get('orderType') === 2) {
         this.$.actionButtonsContainer.$.returnLine.hide();