[英]Can't to add a data into MongoDB using djongo “Array Model Field”
我正在嘗試使用“數組模型字段”(djongo)添加數據,如Djongo文檔(數組模型字段)所示或
from djongo import models
class Blog(models.Model):
name = models.CharField(max_length=100)
tagline = models.TextField()
class Meta:
abstract = True
class MetaData(models.Model):
pub_date = models.DateField()
mod_date = models.DateField()
n_pingbacks = models.IntegerField()
rating = models.IntegerField()
class Meta:
abstract = True
class Author(models.Model):
name = models.CharField(max_length=200)
email = models.EmailField()
class Meta:
abstract = True
def __str__(self):
return self.name
class Entry(models.Model):
blog = models.EmbeddedModelField(
model_container=Blog,
)
meta_data = models.EmbeddedModelField(
model_container=MetaData,
)
headline = models.CharField(max_length=255)
body_text = models.TextField()
authors = models.ArrayModelField(
model_container=Author,
)
n_comments = models.IntegerField()
def __str__(self):
return self.headline
我添加到admin.py中,用於在管理面板中注冊模型
from django.contrib import admin
from .models import Entry
admin.site.register(Entry)
當我嘗試通過http:// localhost:8000 / admin /添加數據時,出現了MigrationError ...
我的錯誤在哪里? 我不明白什么?
我很傻 對不起 更新模型后,我沒有“ makemigration”。
因此,這就是我要做的工作:1.更新模型后,我執行了“ python manage.py makemigrations”並打開了電源。
您應該在所有模型上使用models.ObjectIdField()以避免調用django遷移。
例:
class Author(models.Model):
_id = models.ObjectIdField()
name = models.CharField(max_length=200)
email = models.EmailField()
class Meta:
abstract = True
def __str__(self):
return self.name
在Djongo文檔中查看更多
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