Fixed bug where "New output" button stopped working

- Build status was changing from "PENDING" to "PRODUCTION"
- Created new check for active builds

InvenTree/build/models.py

@@ -182,6 +182,14 @@ class Build(MPTTModel):
         blank=True, help_text=_('Extra build notes')
     )
 
+    @property
+    def active(self):
+        """
+        Return True if this build is active
+        """
+
+        return self.status in BuildStatus.ACTIVE_CODES
+
     @property
     def bom_items(self):
         """

InvenTree/build/templates/build/allocate.html

@@ -21,6 +21,7 @@ InvenTree | Allocate Parts
 </div>
 {% else %}
 <div class='btn-group' role='group'>
+    {% if build.active %}
     <button class='btn btn-primary' type='button' id='btn-create-output' title='{% trans "Create new build output" %}'>
         <span class='fas fa-plus-circle'></span> {% trans "Create New Output" %}
     </button>
@@ -32,6 +33,7 @@ InvenTree | Allocate Parts
     <button class='btn btn-danger' type='button' id='btn-unallocate' title='{% trans "Unallocate stock" %}'>
         <span class='fas fa-minus-circle'></span> {% trans "Unallocate Stock" %}
     </button>
+    {% endif %}
 </div>
 
 <hr>
@@ -74,7 +76,7 @@ InvenTree | Allocate Parts
     );
     {% endfor %}
 
-    {% if build.status == BuildStatus.PENDING %}
+    {% if build.active %}
     $("#btn-allocate").on('click', function() {
         launchModalForm(
             "{% url 'build-auto-allocate' build.id %}",