Implemented API to move multiple items at once

- Added ability to override request method in inventreeUpdate
- Added inventree/script/stock.js to handle stock API js 
- Added StockMove API endpoint

InvenTree/static/script/inventree/api.js

@@ -46,6 +46,12 @@ function inventreeUpdate(url, data={}, options={}) {
         data["_is_final"] = true;
     }
 
+    var method = 'put';
+
+    if ('method' in options) {
+        method = options.method;
+    }
+
     // Middleware token required for data update
     //var csrftoken = jQuery("[name=csrfmiddlewaretoken]").val();
     var csrftoken = getCookie('csrftoken');
@@ -55,7 +61,7 @@ function inventreeUpdate(url, data={}, options={}) {
             xhr.setRequestHeader('X-CSRFToken', csrftoken);
         },
         url: url,
-        type: 'put',
+        type: method,
         data: data,
         dataType: 'json',
         success: function(response, status) {

InvenTree/static/script/inventree/stock.js

@@ -0,0 +1,72 @@
+
+function moveStock(rows, options) {
+
+    var modal = '#modal-form';
+
+    if ('modal' in options) {
+        modal = options.modal;
+    }
+
+    if (rows.length == 0) {
+        alert('No stock items selected');
+        return;
+    }
+
+    function doMove(location, parts) {
+        inventreeUpdate("/api/stock/move/",
+                        {
+                            location: location,
+                            parts: parts
+                        },
+                        {
+                            success: function(response) {
+                                closeModal(modal);
+                                if (options.success) {
+                                    options.success();
+                                }
+                            },
+                            error: function(error) {
+                                alert('error!:\n' + error);
+                            },
+                            method: 'post'
+                        });
+    }
+
+    getStockLocations({},
+        {
+            success: function(response) {
+                openModal(modal);
+                modalSetTitle(modal, "Move " + rows.length + " stock items");
+                modalSetButtonText(modal, "Move");
+
+                // Extact part row info
+                var parts = [];
+
+                for (i = 0; i < rows.length; i++) {
+                    parts.push(rows[i].pk);
+                }
+
+                var form = "<select class='select' id='stock-location'>";
+
+                for (i = 0; i < response.length; i++) {
+                    var loc = response[i];
+
+                    form += makeOption(loc.pk, loc.name + ' - <i>' + loc.description + '</i>');
+                }
+
+                form += "</select">
+
+                modalSetContent(modal, form);
+                attachSelect(modal);
+
+                $(modal).on('click', '#modal-form-submit', function() {
+                    var locId = $(modal).find("#stock-location").val();
+
+                    doMove(locId, parts);
+                });
+            },
+            error: function(error) {
+                alert('Error getting stock locations:\n' + error.error);
+            }
+        });
+}

InvenTree/static/script/modal_form.js

@@ -61,6 +61,9 @@ function modalSetButtonText(modal, text) {
     $(modal).find("#modal-form-submit").html(text);
 }
 
+function closeModal(modal='#modal-form') {
+    $(modal).modal('hide');
+}
 
 function openModal(modal, title='', content='') {