error in automatic action

Question

I am trying to execute this python code to avoid repeating a task in my odoo and the error is not known if record.name:
task = env ['project.task'].search([['name', '=', record.name]])
if task:
for e in task:
if e.id != record.id:
raise Warning ('La tarea esta creada')

Jay Gajera · Accepted Answer

Try this way
if record.name:
task = env ['project.task'].search([('name', '=', record.name),('id','!=',record.id)])
if task:
raise Warning ('La tarea esta creada')

Josep Anton Belchi Riera · Answer

It works fine for me. Of course, you need to respect the indentation rules of Python.
if record.name:
task = env ['project.task'].search([['name', '=', record.name]])
if task:
for e in task:
if e.id != record.id:
raise Warning ('La tarea esta creada')
Hope this helps you.

Danny Gonzalez · Answer

it returns this error when I try to run it
ValueError: : "'NoneType' object has no attribute 'name'" while evaluating
"if record.name:
  task = env ['project.task'].search([['task.name', '=', record.name]])

if task:
  for e in task:
    if e.id != record.id:
      raise Warning ('La tarea esta creada')"

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