[英]Join 3 table in peewee
我希望能夠在peewee中加入多個表。 這種情況對我來說很難弄清楚如何使其與peewee一起使用。 我有下表:用戶,產品,圖像
這是我的模型:
class user(BaseModel):
id = AutoField(primary_key=True)
username = CharField()
password = CharField()
class product(BaseModel):
id = AutoField(primary_key=True)
id_user = ForeignKeyField(user)
product_name = CharField()
product_price = IntegerField()
product_description = TextField()
class images(BaseModel):
id = AutoField(primary_key=True)
id_product = ForeignKeyField(barang)
image_name = TextField()
我想要類似product.id,user.username,product.product_name,product.price,product.product_description,images.image_name的輸出
query = (Product
.select(Product, User, Image)
.join_from(Product, User)
.join_from(Product, Image))
for product in query:
print(product.product_name)
print(product.id_user.username)
print(product.images.image_name)
此處對此進行了非常詳盡的記錄: http : //docs.peewee-orm.com/en/latest/peewee/relationships.html
請閱讀文檔。
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