Odoo 10 : Failed to render mail template - email

Question

I have created an mail template in Odoo 10, and call it with a cron task. The problem is that it doesn't work and give me error, here is the log : https://pastebin.com/c7zCXbxF. Could you help me?
Here is the mail template:
<odoo>
<data>
<record id="crm_lead_reminder" model="mail.template">
<field name="name">Rappel sur le pipeline</field>
<field name="email_from">admin#example.com</field>
<field name="subject">Rappel ${object.type} ${object.name} </field>
<field name="email_to">${object.user_id.partner_id.email}</field>
<field name="model_id" ref="sale_cron.model_crm_lead"/>
<field name="auto_delete" eval="True"/>
<field name="body_html">
<![CDATA[
<p>
hello world
</p>
]]>
</field>
</record>
</data>
And here is the methode that call it:
class sale_cron(models.Model):
_inherit = 'crm.lead'
def _trigger_action(self, date_action, current_date):
date_action = [int(date) for date in date_action.split('-')]
if date_action[0] == current_date.year:
if date_action[1] == current_date.month:
if date_action[2] == current_date.day or date_action[2] == current_date.day + 1:
return 0
return -1
def _check_crm_lead(self):
current_date = datetime.datetime.now()
for crm_lead_id in self.search([('stage_id', '!=', 4)]):
i = self._trigger_action(crm_lead_id.date_action, current_date)
if i == -1:
return 0
template = self.env.ref('sale_cron.crm_lead_reminder')
template.send_mail(self.user_id.id, force_send=True, raise_exception=True)
return 1
ps: the module name is sale_cron.

Answer 1

Try changing your code like this
template.send_mail(crm_lead_id.id, force_send=True, raise_exception=True)
def _check_crm_lead(self):
current_date = datetime.datetime.now()
for crm_lead_id in self.search([('stage_id', '!=', 4)]):
i = self._trigger_action(crm_lead_id.date_action, current_date)
if i == -1:
return 0
template = self.env.ref('sale_cron.crm_lead_reminder')
template.send_mail(crm_lead_id.id, force_send=True, raise_exception=True)
return 1