From 5aaaf172eecd6d53a2b1cb4fb1bf88cf90d8d184 Mon Sep 17 00:00:00 2001
From: Rushabh Mehta <rmehta@gmail.com>
Date: Fri, 6 Jun 2014 11:44:51 +0530
Subject: [PATCH] added qty updating option multi-item selector:

---
 frappe/public/js/frappe/form/grid.js          |  3 ++-
 frappe/public/js/frappe/form/link_selector.js | 23 ++++++++++++++++---
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/frappe/public/js/frappe/form/grid.js b/frappe/public/js/frappe/form/grid.js
index 5c444b6415..daefe582ac 100644
--- a/frappe/public/js/frappe/form/grid.js
+++ b/frappe/public/js/frappe/form/grid.js
@@ -183,7 +183,7 @@ frappe.ui.form.Grid = Class.extend({
 	can_add_rows: function() {
 		return this.is_editable() && !this.cannot_add_rows
 	},
-	set_multiple_add: function(link) {
+	set_multiple_add: function(link, qty) {
 		var me = this;
 		var link_field = frappe.meta.get_docfield(this.df.options, link);
 		$(this.wrapper).find(".grid-add-multiple-rows")
@@ -192,6 +192,7 @@ frappe.ui.form.Grid = Class.extend({
 				new frappe.ui.form.LinkSelector({
 					doctype: link_field.options,
 					fieldname: link,
+					qty_fieldname: qty,
 					target: me,
 					txt: ""
 				});
diff --git a/frappe/public/js/frappe/form/link_selector.js b/frappe/public/js/frappe/form/link_selector.js
index ec98630936..2a0a15320e 100644
--- a/frappe/public/js/frappe/form/link_selector.js
+++ b/frappe/public/js/frappe/form/link_selector.js
@@ -83,9 +83,8 @@ frappe.ui.form.LinkSelector = Class.extend({
 							var value = $(this).attr("data-value");
 							var $link = this;
 							if(me.target.is_grid) {
-								var d = me.target.add_new_row();
-								frappe.model.set_value(d.doctype, d.name, me.fieldname, value);
-								show_alert(__("{0} added", [value]));
+								// set in grid
+								me.set_in_grid(value);
 							} else {
 								if(me.target.doctype)
 									me.target.parse_validate_and_set_in_model(value);
@@ -110,5 +109,23 @@ frappe.ui.form.LinkSelector = Class.extend({
 			},
 			btn: this.dialog.get_primary_btn()
 		});
+	},
+	set_in_grid: function(value) {
+		var me = this, updated = false;
+		if(this.qty_fieldname) {
+			$.each(this.target.frm.doc[this.target.df.fieldname] || [], function(i, d) {
+				if(d[me.fieldname]===value) {
+					frappe.model.set_value(d.doctype, d.name, me.qty_fieldname, d[me.qty_fieldname] + 1);
+					show_alert(__("Added {0} ({1})", [value, d[me.qty_fieldname]]));
+					updated = true;
+					return false;
+				}
+			});
+		}
+		if(!updated) {
+			var d = this.target.add_new_row();
+			frappe.model.set_value(d.doctype, d.name, me.fieldname, value);
+			show_alert(__("{0} added", [value]));
+		}
 	}
 })