From 02d17378a69feb7bc3166868bd2d167206c147cd Mon Sep 17 00:00:00 2001
From: Oliver Walters <oliver.henry.walters@gmail.com>
Date: Wed, 26 Aug 2020 23:02:25 +1000
Subject: [PATCH] Add function to programatically generate a list of <option>
 elements

---
 .../static/script/inventree/modals.js         | 51 ++++++++++++++++++-
 1 file changed, 49 insertions(+), 2 deletions(-)

diff --git a/InvenTree/InvenTree/static/script/inventree/modals.js b/InvenTree/InvenTree/static/script/inventree/modals.js
index 83fdbd1bb1..a03ef3b73d 100644
--- a/InvenTree/InvenTree/static/script/inventree/modals.js
+++ b/InvenTree/InvenTree/static/script/inventree/modals.js
@@ -1,7 +1,54 @@
-function makeOption(id, title) {
+function makeOption(text, value, title) {
     /* Format an option for a select element
      */
-    return "<option value='" + id + "'>" + title + "</option>";
+
+    var html = `<option value='${value || text}'`;
+
+    if (title) {
+        html += ` title='${title}'`;
+    }
+
+    html += `>${text}</option>`;
+
+    return html;
+}
+
+function makeOptionsList(elements, textFunc, valueFunc, titleFunc) {
+    /*
+     * Programatically generate a list of <option> elements,
+     * from the (assumed array) of elements.
+     * For each element, we pass the element to the supplied functions,
+     * which (in turn) generate display / value / title values.
+     * 
+     * Args:
+     * - elements: List of elements
+     * - textFunc: Function which takes an element and generates the text to be displayed 
+     * - valueFunc: optional function which takes an element and generates the value
+     * - titleFunc: optional function which takes an element and generates a title
+     */
+    
+    var html = ``;
+
+    elements.forEach(function(element) {
+        
+        var text = textFunc(element);
+        var value = null;
+        var title = null;
+
+        if (valueFunc) {
+            value = valueFunc(element);
+        } else {
+            value = text;
+        }
+
+        if (titleFunc) {
+            title = titleFunc(element);
+        }
+
+        html += makeOption(text, value, title);
+    });
+
+    return html;
 }