Add option to delete columns

InvenTree/part/templates/part/bom_upload/select_fields.html

@@ -35,6 +35,7 @@
                         {% for req in req_cols %}
                         <option value='{{ req }}'{% if req == col.guess %}selected='selected'{% endif %}>{{ req }}</option>
                         {% endfor %}
+                        <option value='Delete'>Delete Column</option>
                     </select>
                     {% if col.duplicate %}
                     <p class='help-inline'>Duplicate column selection</p>

InvenTree/part/views.py

@@ -767,6 +767,9 @@ class BomUpload(AjaxView, FormMixin):
                 col_id = int(item.replace('col_select_', ''))
                 col_name = value
 
+                if value.lower() == 'delete':
+                    continue
+
                 column_selections[col_id] = value
 
             # Extract the row data
@@ -822,6 +825,10 @@ class BomUpload(AjaxView, FormMixin):
             row = row_data[row_idx]
             items = []
             for col_idx in sorted(row.keys()):
+
+                if not col_idx in column_selections.keys():
+                    continue
+
                 value = row[col_idx]
                 items.append(value)