Faced a problem. There is the following system of models (see code). Initially, when I described them, to each id with a fool I stuck primary_key , which was clearly not worth doing, then I understood about it, and limited to unique . But subsequent migrations still returned an error about more than one pc. I tried to delete the database, tried to create a new virtual environment. Did not help. There is an error somewhere in the code. But where? I can not find and understand. Actually, the model code :
class MainContact(models.Model): main_contact_id = models.IntegerField(null=True, unique=True) class Company(models.Model): company_id = models.IntegerField(null=True, unique=True) company_name = models.CharField(max_length=255, null=True) class Tags(models.Model): tags_id = models.IntegerField(null=True, unique=True) tags_name = models.CharField(max_length=255, null=True) class CustomFiledsValues(models.Model): custom_fields_values_value = models.CharField(max_length=255, null=True) custom_fields_values_enum = models.CharField(max_length=255, null=True) custom_fields_values_subtype = models.CharField(max_length=255, null=True) class CustomFields(models.Model): custom_fields_id = models.IntegerField(null=True, unique=True) custom_fields_name = models.CharField(max_length=255, null=True) custom_fields_values = models.ForeignKey(CustomFiledsValues, on_delete = models.CASCADE) custom_fields_is_system = models.BooleanField() class Contacts(models.Model): contact_id = models.IntegerField(null=True, unique=True) class Pipeline(models.Model): pipeline_id = models.IntegerField(null=True, unique=True) class Deal(models.Model): deal_id = models.IntegerField(null=True, unique=True) name = models.CharField(max_length=255, null=True) responsible_user_id = models.IntegerField(null=True) created_by = models.IntegerField(null=True) created_at = models.DateTimeField() updated_at = models.DateTimeField() account_id = models.IntegerField(null=True) is_deleted = models.BooleanField() main_contact = models.ForeignKey(MainContact, on_delete=models.CASCADE) group_id = models.IntegerField(null=True) company = models.ForeignKey(Company, on_delete=models.CASCADE) closed_at = models.DateTimeField() closest_task_at = models.DateTimeField() tags = models.ForeignKey(Tags, on_delete=models.CASCADE) custom_fields = models.ForeignKey(CustomFields, on_delete=models.CASCADE) contacts = models.ForeignKey(Contacts, on_delete=models.CASCADE) status_id = models.IntegerField(null=True) sale = models.DecimalField(max_digits=19, decimal_places=2) pipeline = models.ForeignKey(Pipeline, on_delete=models.CASCADE) Traceback :
Traceback (most recent call last): File "manage.py", line 15, in <module> execute_from_command_line(sys.argv) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line utility.execute() File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/core/management/__init__.py", line 365, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/core/management/base.py", line 288, in run_from_argv self.execute(*args, **cmd_options) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/core/management/base.py", line 335, in execute output = self.handle(*args, **options) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/core/management/commands/migrate.py", line 200, in handle fake_initial=fake_initial, File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/migrations/executor.py", line 117, in migrate state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/migrations/executor.py", line 147, in _migrate_all_forwards state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/migrations/executor.py", line 244, in apply_migration state = migration.apply(state, schema_editor) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/migrations/migration.py", line 122, in apply operation.database_forwards(self.app_label, schema_editor, old_state, project_state) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/migrations/operations/models.py", line 92, in database_forwards schema_editor.create_model(model) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 298, in create_model self.execute(sql, params or None) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 117, in execute cursor.execute(sql, params) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/backends/utils.py", line 100, in execute return super().execute(sql, params) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/backends/utils.py", line 68, in execute return self._execute_with_wrappers(sql, params, many=False, executor=self._execute) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/backends/utils.py", line 77, in _execute_with_wrappers return executor(sql, params, many, context) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/backends/utils.py", line 85, in _execute return self.cursor.execute(sql, params) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/utils.py", line 89, in __exit__ raise dj_exc_value.with_traceback(traceback) from exc_value File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/backends/utils.py", line 83, in _execute return self.cursor.execute(sql) File "/home/megagun/Projects/venvs/erpmodtest/lib/python3.5/site-packages/django/db/backends/sqlite3/base.py", line 301, in execute return Database.Cursor.execute(self, query) django.db.utils.OperationalError: table "amocrmapi_deal" has more than one primary key