KeyError: 'gnuhealth.model' when i use Many2One field

Support Developer
1

in my module i want to use some relation between the models and my own model, so i do this:

class NurseCall(ModelSQL, ModelView):
	"Nurse Call"
	__name__ = "arnika.nurse.call"

	name = fields.Many2One('gnuhealth.patient', 'Patient')
	date = fields.DateTime('Date')
	bed = fields.Many2One("gnuhealth.hospital.bed", 'nurse_call')
	health_professional = fields.Many2One('gnuhealth.healthprofessional','Health Professional', readonly=True)
	
	@classmethod
	def __setup__(cls):
	   super().__setup__()
	   t = cls.__table__()
	   cls._sql_constraints = [
	       ('name_uniq', Unique(t, t.name), 'The Name must be unique !'),]

and when i run trytond-admin -d test -u module its raise this error :

Traceback (most recent call last):
  File "gnuhealth/tryton/server/trytond-6.0.27/bin/trytond-admin", line 23, in <module>
    admin.run(options)
  File "/home/gnuhealth/gnuhealth/tryton/server/trytond-6.0.27/trytond/admin.py", line 53, in run
    pool.init(update=options.update, lang=list(lang),
  File "/home/gnuhealth/gnuhealth/tryton/server/trytond-6.0.27/trytond/pool.py", line 164, in init
    restart = not load_modules(
  File "/home/gnuhealth/gnuhealth/tryton/server/trytond-6.0.27/trytond/modules/__init__.py", line 438, in load_modules
    _load_modules(update)
  File "/home/gnuhealth/gnuhealth/tryton/server/trytond-6.0.27/trytond/modules/__init__.py", line 406, in _load_modules
    load_module_graph(graph, pool, update, lang)
  File "/home/gnuhealth/gnuhealth/tryton/server/trytond-6.0.27/trytond/modules/__init__.py", line 238, in load_module_graph
    cls.__register__(module)
  File "/home/gnuhealth/gnuhealth/tryton/server/trytond-6.0.27/trytond/model/modelsql.py", line 264, in __register__
    ref_model = pool.get(field.model_name)
  File "/home/gnuhealth/gnuhealth/tryton/server/trytond-6.0.27/trytond/pool.py", line 187, in get
    return self._pool[self.database_name][type][name]
KeyError: 'gnuhealth.hospital.bed'

and if I comment the #bed = fields.Many2One("gnuhealth.hospital.bed", 'nurse_call') line, i still get this error but for one of other field and all of module are activated

2

This sounds like you have dependency declaration issue. If your module is using model declared in other modules, you must declare the other module as a dependency. So it is loaded before yours and the models will be in the pool when needed.

1 Like
4

its worked, thank you :face_holding_back_tears:

5

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