我正在使用python 3.3.4和Django 1.7使用Heroku Postgresql将应用程序部署到Heroku。我的应用程序在本地使用sqlite正常工作。 当我运行初始迁移的命令时：
heroku run python manage.py
我收到迁移错误：
(storage_project)Edu222-Macbook-Pro:storage educalvachi$ heroku run python manage.py migrate
Running `python manage.py migrate` attached to terminal... up, run.9874
Operations to perform:
Synchronize unmigrated apps: django_admin_bootstrapped
Apply all migrations: contenttypes, core, admin, sessions, auth
Synchronizing apps without migrations:
Creating tables...
Installing custom SQL...
Installing indexes...
Running migrations:
Applying contenttypes.0001_initial... OK
Applying auth.0001_initial... OK
Applying admin.0001_initial... OK
Applying core.0001_initial... OK
Applying core.0002_auto_20140530_0152... OK
Applying core.0003_auto_20140819_1955... OK
Applying core.0004_auto_20140822_1426... OK
Applying core.0005_auto_20140822_1908... OK
Applying core.0006_auto_20140824_0021...Traceback (most recent call last):
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/backends/utils.py", line 65, in execute
return self.cursor.execute(sql, params)
psycopg2.ProgrammingError: multiple primary keys for table "core_broca" are not allowed
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/app/.heroku/python/lib/python3.3/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
utility.execute()
File "/app/.heroku/python/lib/python3.3/site-packages/django/core/management/__init__.py", line 377, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/app/.heroku/python/lib/python3.3/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **options.__dict__)
File "/app/.heroku/python/lib/python3.3/site-packages/django/core/management/base.py", line 338, in execute
output = self.handle(*args, **options)
File "/app/.heroku/python/lib/python3.3/site-packages/django/core/management/commands/migrate.py", line 160, in handle
executor.migrate(targets, plan, fake=options.get("fake", False))
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/migrations/executor.py", line 63, in migrate
self.apply_migration(migration, fake=fake)
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/migrations/executor.py", line 97, in apply_migration
migration.apply(project_state, schema_editor)
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/migrations/migration.py", line 107, in apply
operation.database_forwards(self.app_label, schema_editor, project_state, new_state)
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/migrations/operations/fields.py", line 37, in database_forwards
field,
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/backends/schema.py", line 411, in add_field
self.execute(sql, params)
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/backends/schema.py", line 98, in execute
cursor.execute(sql, params)
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/backends/utils.py", line 81, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/backends/utils.py", line 65, in execute
return self.cursor.execute(sql, params)
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/app/.heroku/python/lib/python3.3/site-packages/django/utils/six.py", line 549, in reraise
raise value.with_traceback(tb)
File "/app/.heroku/python/lib/python3.3/site-packages/django/db/backends/utils.py", line 65, in execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: multiple primary keys for table "core_broca" are not allowed
此应用的模型文件如下所示：
from django.db import models
class Persona(models.Model):
identificacion = models.CharField(max_length=20)
name = models.CharField(max_length=164)
def __str__(self):
return self.name
class Herramienta(models.Model):
marca = models.CharField(max_length=90)
tipo = models.CharField(max_length=90, blank=True)
codigo_id = models.CharField(max_length=15, unique=True)
prestamos = models.ManyToManyField(Persona, through='Prestamo')
def __str__(self):
return self.marca + " " + self.tipo + " " + self.codigo_id
class Prestamo(models.Model):
herramienta = models.ForeignKey(Herramienta)
persona = models.ForeignKey(Persona)
fecha_prestamo = models.DateTimeField(auto_now_add=True)
fecha_devolucion = models.DateTimeField(null=True, blank=True)
def __str__(self):
return "Préstamo a " + self.persona.name
class Destornillador(Herramienta):
TAMANO_CHOICES = (
('Largo', 'Largo'),
('Medio', 'Medio'),
('Junior', 'Junior'),
)
tamano = models.CharField(max_length=80, choices=TAMANO_CHOICES,
default='Junior')
def __str__(self):
return "Destornillador de" + " tamano " + self.tamano
class Llave(Herramienta):
tamano = models.CharField(max_length=80)
class Copa(Herramienta):
tamano = models.CharField(max_length=80)
mando = models.CharField(max_length=80)
def __str__(self):
return "copa " + self.tamano
class Pistola(Herramienta):
dimension = models.IntegerField(max_length=80)
torque = models.IntegerField(max_length=80)
presion_aire = models.IntegerField(max_length=80)
class Playo(Herramienta):
tamano = models.CharField(max_length=80)
funcion = models.CharField(max_length=90)
class Martillo(Herramienta):
material = models.CharField(max_length=90)
class Broca(Herramienta):
utilidad = models.CharField(max_length=90)
tamano = models.CharField(max_length=80)
def __str__(self):
return "Broca de " + self.utilidad + " de " + self.tamano
class Lima(Herramienta):
tamano = models.CharField(max_length=80)
class Generico(Herramienta):
caracteristicas = models.CharField(max_length=90)
class InstrumentoDeMedida(Herramienta):
rango = models.CharField(max_length=80)
escala = models.CharField(max_length=80, blank=True)
有什么想法吗？感谢帮助。