add button to delete all test data for a given stock item

InvenTree/InvenTree/forms.py

@@ -5,6 +5,7 @@ Helper forms which subclass Django forms to provide additional functionality
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
+from django.utils.translation import ugettext as _
 from django import forms
 from crispy_forms.helper import FormHelper
 from crispy_forms.layout import Layout, Field
@@ -92,6 +93,20 @@ class HelperForm(forms.ModelForm):
         self.helper.layout = Layout(*layouts)
 
 
+class ConfirmForm(forms.Form):
+    """ Generic confirmation form """
+
+    confirm = forms.BooleanField(
+        required=False, initial=False,
+        help_text=_("Confirm")
+    )
+
+    class Meta:
+        fields = [
+            'confirm'
+        ]
+
+
 class DeleteForm(forms.Form):
     """ Generic deletion form which provides simple user confirmation
     """
@@ -99,7 +114,7 @@ class DeleteForm(forms.Form):
     confirm_delete = forms.BooleanField(
         required=False,
         initial=False,
-        help_text='Confirm item deletion'
+        help_text=_('Confirm item deletion')
     )
 
     class Meta:
@@ -131,14 +146,14 @@ class SetPasswordForm(HelperForm):
                                      required=True,
                                      initial='',
                                      widget=forms.PasswordInput(attrs={'autocomplete': 'off'}),
-                                     help_text='Enter new password')
+                                     help_text=_('Enter new password'))
 
     confirm_password = forms.CharField(max_length=100,
                                        min_length=8,
                                        required=True,
                                        initial='',
                                        widget=forms.PasswordInput(attrs={'autocomplete': 'off'}),
-                                       help_text='Confirm new password')
+                                       help_text=_('Confirm new password'))
 
     class Meta:
         model = User

InvenTree/stock/templates/stock/item_tests.html

@@ -14,6 +14,9 @@
     <div class='button-toolbar container-fluid' style="float: right;">
         <div class='btn-group' role='group'>
             <button type='button' class='btn btn-success' id='add-test-result'>{% trans "Add Test Data" %}</button>
+            {% if user.is_staff %}
+            <button type='button' class='btn btn-danger' id='delete-test-results'>{% trans "Delete Test Data" %}</button>
+            {% endif %}
         </div>
         <div class='filter-list' id='filter-list-stocktests'>
             <!-- Empty div -->
@@ -40,6 +43,17 @@ function reloadTable() {
     //$("#test-result-table").bootstrapTable("refresh");
 }
 
+{% if user.is_staff %}
+$("#delete-test-results").click(function() {
+    launchModalForm(
+        "{% url 'stock-item-delete-test-data' item.id %}",
+        {
+            success: reloadTable,
+        }
+    );
+});
+{% endif %}
+
 $("#add-test-result").click(function() {
     launchModalForm(
         "{% url 'stock-item-test-create' %}", {

InvenTree/stock/urls.py

@@ -21,6 +21,7 @@ stock_item_detail_urls = [
     url(r'^serialize/', views.StockItemSerialize.as_view(), name='stock-item-serialize'),
     url(r'^delete/', views.StockItemDelete.as_view(), name='stock-item-delete'),
     url(r'^qr_code/', views.StockItemQRCode.as_view(), name='stock-item-qr'),
+    url(r'^delete_test_data/', views.StockItemDeleteTestData.as_view(), name='stock-item-delete-test-data'),
 
     url(r'^add_tracking/', views.StockItemTrackingCreate.as_view(), name='stock-tracking-create'),
 

InvenTree/stock/views.py

@@ -17,6 +17,7 @@ from django.utils.translation import ugettext as _
 from InvenTree.views import AjaxView
 from InvenTree.views import AjaxUpdateView, AjaxDeleteView, AjaxCreateView
 from InvenTree.views import QRCodeView
+from InvenTree.forms import ConfirmForm
 
 from InvenTree.helpers import str2bool, DownloadFile, GetExportFormats
 from InvenTree.helpers import ExtractSerialNumbers
@@ -229,6 +230,42 @@ class StockItemAttachmentDelete(AjaxDeleteView):
         }
 
 
+class StockItemDeleteTestData(AjaxUpdateView):
+    """
+    View for deleting all test data
+    """
+
+    model = StockItem
+    form_class = ConfirmForm
+    ajax_form_title = _("Delete All Test Data")
+
+    def get_form(self):
+        return ConfirmForm()
+
+    def post(self, request, *args, **kwargs):
+
+
+        valid = False
+
+        stock_item = StockItem.objects.get(pk=self.kwargs['pk'])
+        form = self.get_form()
+        
+        confirm = str2bool(request.POST.get('confirm', False))
+
+        if confirm is not True:
+            form.errors['confirm'] = [_('Confirm test data deletion')]
+            form.non_field_errors = [_('Check the confirmation box')]
+        else:
+            stock_item.test_results.all().delete()
+            valid = True
+
+        data = {
+            'form_valid': valid,
+        }
+
+        return self.renderJsonResponse(request, form, data)
+
+
 class StockItemTestResultCreate(AjaxCreateView):
     """
     View for adding a new StockItemTestResult