[FIX] Restrict button_cancel

stock_inventory_revaluation/README.rst

@@ -44,11 +44,16 @@ Usage
   select the records in the tree view and go to
   *Action / Post Inventory Revaluations*.
 
-
 .. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
    :alt: Try me on Runbot
    :target: https://runbot.odoo-community.org/runbot/153/10.0
 
+Known issues / Roadmap
+======================
+
+* It is not possible to cancel inventory revaluations for products set with
+  average or standard price.
+
 Bug Tracker
 ===========
 

stock_inventory_revaluation/views/stock_inventory_revaluation_view.xml

@@ -16,7 +16,8 @@
                                 class="oe_highlight"/>
                         <button name="button_cancel" states="draft,posted"
                                 string="Cancel" type="object"
-                                class="oe_highlight"/>
+                                class="oe_highlight"
+                                attrs="{'invisible':[('cost_method','in',['average','standard'])]}"/>
                         <field name="state" widget="statusbar"
                                statusbar_visible="draft,done,cancel"
                                statusbar_colors='{"done":"blue"}'/>