Implement the suggestion of Stefan Rijnhart to get the name of the DB in the email.

scheduler_error_mailer/ir_cron.py

@@ -48,7 +48,11 @@ class ir_cron(orm.Model):
         if my_cron.email_template:
             # we put the job_exception in context to be able to print it inside
             # the email template
-            context = {'job_exception': job_exception}
+            context = {
+                'job_exception': job_exception,
+                'dbname': cr.dbname,
+                }
+
             logger.debug("Sending scheduler error email with context=%s" % context)
             self.pool['email.template'].send_mail(cr, uid,
                 my_cron.email_template.id, my_cron.id, force_send=True,

scheduler_error_mailer/ir_cron_email_tpl.xml

@@ -12,13 +12,13 @@
     <field name="name">Scheduler Error</field>
     <field name="email_from">${object.user_id.user_email or ''}</field>
     <field name="email_to">${object.user_id.user_email or ''}</field>
-    <field name="subject">Scheduler '${object.name or ''}' FAILED</field>
+    <field name="subject">[DB ${ctx.get('dbname')}] Scheduler '${object.name or ''}' FAILED</field>
     <field name="model_id" ref="base.model_ir_cron"/>
     <field name="auto_delete" eval="True"/>
     <field name="body_html"><![CDATA[
 <div style="font-family: 'Lucica Grande', Ubuntu, Arial, Verdana, sans-serif; font-size: 12px; color: rgb(34, 34, 34); background-color: #FFF; ">
 
-<p>OpenERP tried to run the scheduler <em>${object.name or ''}</em> but it failed. Here is the error message :</p>
+<p>OpenERP tried to run the scheduler <em>${object.name or ''}</em> in the database <em>${ctx.get('dbname')}</em> but it failed. Here is the error message :</p>
 
 <strong>
 ${ctx.get('job_exception') and ctx.get('job_exception').value or 'Failed to get the error message from the context.'}
@@ -39,12 +39,12 @@ ${ctx.get('job_exception') and ctx.get('job_exception').value or 'Failed to get
 
 <p>
 -- <br/>
-Automatic e-mail sent by OpenERP. Do not reply.
+Automatic e-mail sent by OpenERP. Do not reply.<br/>
+Database : ${ctx.get('dbname')}
 </p>
 </div>
     ]]></field>
 </record>
-<!-- TODO : print database name inside the email (we used object._cr.dbname in openerp 6.1, but it's not possible in OpenERP 7 because the executing of jinja2 is sandboxed and private attributes can't be accessed). -->
 
 </data>
 </openerp>