Implement unassigning products to tasks

src/blenderbim/blenderbim/bim/module/sequence/__init__.py

@@ -40,6 +40,7 @@ classes = (
     operator.DisableEditingTaskTime,
     operator.EditTaskTime,
     operator.AssignProduct,
+    operator.UnassignProduct,
     prop.WorkPlan,
     prop.BIMWorkPlanProperties,
     prop.Task,

src/blenderbim/blenderbim/bim/module/sequence/operator.py

@@ -761,3 +761,25 @@ class AssignProduct(bpy.types.Operator):
             )
         Data.load(self.file)
         return {"FINISHED"}
+
+
+class UnassignProduct(bpy.types.Operator):
+    bl_idname = "bim.unassign_product"
+    bl_label = "Unassign Product"
+    task: bpy.props.IntProperty()
+    related_product: bpy.props.StringProperty()
+
+    def execute(self, context):
+        related_products = (
+            [bpy.data.objects.get(self.related_product)] if self.related_product else bpy.context.selected_objects
+        )
+        for related_product in related_products:
+            self.file = IfcStore.get_file()
+            ifcopenshell.api.run(
+                "sequence.unassign_product",
+                self.file,
+                relating_product=self.file.by_id(related_product.BIMObjectProperties.ifc_definition_id),
+                related_object=self.file.by_id(self.task),
+            )
+        Data.load(self.file)
+        return {"FINISHED"}

src/blenderbim/blenderbim/bim/module/sequence/ui.py

@@ -261,6 +261,16 @@ class BIM_UL_tasks(UIList):
                 row.prop(item, "finish", emboss=False, text="")
                 row.prop(item, "duration", emboss=False, text="")
 
+            if context.active_object:
+                oprops = context.active_object.BIMObjectProperties
+                row = layout.row(align=True)
+                if oprops.ifc_definition_id in Data.tasks[item.ifc_definition_id]["RelatingProducts"]:
+                    op = row.operator("bim.unassign_product", text="", icon="KEYFRAME_HLT", emboss=False)
+                    op.task = item.ifc_definition_id
+                else:
+                    op = row.operator("bim.assign_product", text="", icon="KEYFRAME", emboss=False)
+                    op.task = item.ifc_definition_id
+
             if props.active_task_id == item.ifc_definition_id:
                 if props.active_task_time_id:
                     row.operator("bim.edit_task_time", text="", icon="CHECKMARK")
@@ -293,5 +303,3 @@ class BIM_UL_tasks(UIList):
                 row.operator("bim.enable_editing_task", text="", icon="GREASEPENCIL").task = item.ifc_definition_id
                 row.operator("bim.add_task", text="", icon="ADD").task = item.ifc_definition_id
                 row.operator("bim.remove_task", text="", icon="X").task = item.ifc_definition_id
-            row = layout.row(align=True)
-            row.operator("bim.assign_product", text="ADD", icon="OUTLINER_COLLECTION").task = item.ifc_definition_id