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Bonjour,
Je suis débutant dans l'utilisation du FrameWork Django. Pour un projet d'apprentissage j'ai décidé de concevoir une application de Gestion d'une Ecole comprenant des models tel que :Professeur, Matiere, SalleCours et Cours.
""" MATIERE DISPENSES DANS L'ECOLE """
class Matiere(models.Model):
libMatiere=models.CharField("Libellé Matiére", max_length=50)
def __str__(self):
return self.libMatiere
"""Les salles de Classes qui sont dans une Ecole, une classe conrespond à un niveau donné telque 'La Terminal A4 B' """
class SalleClasse (models.Model):
libClasse=models.CharField("Libellé Classe", max_length=50)
nbreMax=models.IntegerField("Nombre Maximun Eléve")
Niveau=models.ForeignKey(Niveau,verbose_name="Niveau Classe")
def __str__(self):
return '%s %s %s' % (self.Niveau, self.libClasse, self.nbreMax)
"""Professeur qualifié pour dispenser une ou plusieurs matiére dans l'Ecole"""
class Professeur (models.Model):
SEX=(
('M','M'),
('F','F'),
)
nomProf=models.CharField("Nom", max_length=50)
prenomProf=models.CharField("Prénoms", max_length=100)
dateNaisProf=models.DateField("Date de Naissance")
sexProf=models.CharField("Sexe", max_length=1, choices=SEX)
contactProf=models.CharField('Contacts', max_length=20)
adresseProf=models.TextField("Adresse", max_length=300)
Matiere=models.ManyToManyField(Matiere, verbose_name="Matiére Dispensées")
def __str__(self):
return '%s %s %s %s %s %s' % (self.nomProf, self.prenomProf, self.sexProf, self.dateNaisProf, self.contactProf,
self.dateNaisProf)
class Cours(models.Model):
noteCours=models.IntegerField("Cours Noté sur")
heureCours=models.IntegerField("Nombre d'heure")
Matiere=models.ForeignKey(Matiere, verbose_name="Matiére")
Classe=models.ForeignKey(SalleClasse, verbose_name="Classe")
Professeur=models.ForeignKey(Professeur, "Professeur")Quand j'exécute la commande "migrate" il me renvoie une erreur
PS D:\Projects\GestEcole> python manage.py migrate Ecole
Operations to perform:
Apply all migrations: Ecole
Running migrations:
Applying Ecole.0005_cours...Traceback (most recent call last):
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\options.py", line 617, in get_field
return self.fields_map[field_name]
KeyError: 'Professeur'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\management\__init__.py", line 367, in execute_from_command_line
utility.execute()
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\management\__init__.py", line 359, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\management\base.py", line 294, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\management\base.py", line 345, in execute
output = self.handle(*args, **options)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\core\management\commands\migrate.py", line 204, in handle
fake_initial=fake_initial,
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\migrations\executor.py", line 115, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\migrations\executor.py", line 145, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\migrations\executor.py", line 244, in apply_migration
state = migration.apply(state, schema_editor)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\migrations\migration.py", line 129, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\migrations\operations\models.py", line 96, in database_forwards
schema_editor.create_model(model)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\backends\base\schema.py", line 246, in create_model
definition, extra_params = self.column_sql(model, field)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\backends\base\schema.py", line 136, in column_sql
db_params = field.db_parameters(connection=self.connection)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\fields\related.py", line 940, in db_parameters
return {"type": self.db_type(connection), "check": self.db_check(connection)}
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\fields\related.py", line 937, in db_type
return self.target_field.rel_db_type(connection=connection)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\fields\related.py", line 855, in target_field
return self.foreign_related_fields[0]
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\fields\related.py", line 595, in foreign_related_fields
return tuple(rhs_field for lhs_field, rhs_field in self.related_fields if rhs_field)
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\fields\related.py", line 582, in related_fields
self._related_fields = self.resolve_related_fields()
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\fields\related.py", line 575, in resolve_related_fields
else self.remote_field.model._meta.get_field(to_field_name))
File "C:\Users\LJ\AppData\Local\Programs\Python\Python36\lib\site-packages\django\db\models\options.py", line 619, in get_field
raise FieldDoesNotExist('%s has no field named %r' % (self.object_name, field_name))
django.core.exceptions.FieldDoesNotExist: Professeur has no field named 'Professeur'Merci d'avance pour vos interventions et conseils
Hors ligne
Il n'est pas possible d'aider sans le code de la migration associée.
Hors ligne