python – django makemigrations和heroku服务器上的迁移不会创

我在heroku上创建了一个Django应用程序.我无法正确迁移heroku服务器.在过去,我已在本地完成所有makemigrations,然后将它们推送到服务器.它过去曾奏效.现在我想我会选择在服务器端进行全部迁移,因为我根本没有在本地运行这个应用程序.

我刚刚在models.py中为app’main’创建了一个新模型：

from __future__ import unicode_literals

from django.db import models

class InstagramPhotos(models.Model):
    imageId = models.IntegerField()
    userId = models.IntegerField()
    likes = models.IntegerField()
    captionText = models.CharField(max_length=200)
    image = models.ImageField()

将更改推送到服务器后,我运行了以下输出：

heroku run python manage.py makemigrations main

Running python manage.py makemigrations main on ?
glacial-beach-50253… up,run.8354 Migrations for ‘main’:
0001_initial.py:
– Create model InstagramPhotos

好像对不对？那么我尝试迁移,因为你知道实际上会在数据库中创建表：

heroku run python manage.py migrate

Running python manage.py migrate on ? glacial-beach-50253… up,
run.7556 Operations to perform: Apply all migrations: auth,
contenttypes,admin,sessions Running migrations: No migrations to
apply. Your models have changes that are not yet reflected in a
migration,and so won’t be applied. Run ‘manage.py makemigrations’
to make new migrations,and then re-run ‘manage.py migrate’ to apply
them.

无论我多少次尝试重新运行makemigrations然后迁移它似乎仍然没有拿起它.不知道为什么会发生这种情况除了以这种方式无法在heroku服务器上运行之外？我肯定需要在本地进行makemigrations并推送吗？

仅供参考我只是在settings.py中定义了默认的sqlite3数据库.