[IMP] runbot: show bundles that use a Dockerfile

Before manipulating a Dockerfile, it can be useful to know which bundle
is using it.

runbot/models/dockerfile.py

@@ -20,6 +20,7 @@ class Dockerfile(models.Model):
     version_ids = fields.One2many('runbot.version', 'dockerfile_id', string='Versions')
     description = fields.Text('Description')
     view_ids = fields.Many2many('ir.ui.view', compute='_compute_view_ids')
+    bundle_ids = fields.One2many('runbot.bundle', 'dockerfile_id', string='Used in Bundles')
 
     _sql_constraints = [('runbot_dockerfile_name_unique', 'unique(name)', 'A Dockerfile with this name already exists')]
 

runbot/views/dockerfile_views.xml

@@ -32,6 +32,14 @@
                     </tree>
                   </field>
                 </page>
+                <page string="Bundles">
+                  <field name="bundle_ids" widget="one2many">
+                    <tree>
+                      <field name="project_id"/>
+                      <field name="name"/>
+                    </tree>
+                  </field>
+                </page>
               </notebook>
             </sheet>
             <div class="oe_chatter">
@@ -51,6 +59,7 @@
             <field name="image_tag"/>
             <field name="to_build"/>
             <field name="version_ids" widget="many2many_tags"/>
+            <field name="bundle_ids"/>
             <field name="dockerfile" invisible="True"/>
           </tree>
         </field>