使用PeeWee Orm我创建了两个表（我已经删除了许多与此查询无关的字段）
class Product(BaseModel):
fm_price = FloatField(null=True)
magento = IntegerField(db_column='magento_id', null=True, index=True)
sku = CharField(index=True, null=True, unique=True)
# Compare these two fields to on or offline products
magento_status_fm = IntegerField(null=True)
magento_status_ff = IntegerField(null=True)
# Date fields to put error dates in
ff_price_error = DateField(index=True, null=True)
ff_stock_error = DateField(index=True, null=True)
fm_price_error = DateField(index=True, null=True)
fm_stock_error = DateField(index=True, null=True)
ff_check_date = DateField(null=True, index=True) # When did we get this product from FF
class Meta:
db_table = 'products'
indexes = (
(('fm_price', 'vip_price', 'education_price'), False),
)
class Price(BaseModel):
price_pk = PrimaryKeyField()
entity_id = ForeignKeyField(Product, to_field='magento', null=True, on_update='CASCADE', on_delete='CASCADE')
customer_group_id = IntegerField(null=True)
final_price = FloatField(null=True)
min_price = FloatField(null=True)
check_date = DateField(null=True)
class Meta:
indexes = (
(('entity_id', 'customer_group_id'), True),
)
示例内容：
产品：
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------
| id | CREATION | MODIFICATION | fm_price | fm_stock | vip_price | education_price | magento_id | omit | sku | url | web_stock | magento_status_fm | magento_status_ff | ff_price_error | ff_stock_error | fm_price_error | fm_stock_error | fm_vip_price_error | ff_vip_price_error | ff_check_date |
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------
| 3 | 2017-12-12 12:53:01 | 2017-12-14 09:31:44 | 109 | NULL | NULL | NULL | 15212 | NULL | epiea10nach1 | https://www.absolut… | NULL | NULL | 1 | NULL | NULL | NULL | NULL | NULL | NULL | 2017-12-14 |
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------
| 5 | 2017-12-12 12:53:01 | 2017-12-14 09:31:44 | 545 | NULL | NULL | NULL | 15433 | NULL | yamapx700mk2blk | https://www.absolut… | NULL | NULL | 1 | NULL | NULL | NULL | NULL | NULL | NULL | 2017-12-14 |
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ------------------------------------------------------------------------------
价格：
---------------------------------------------------------------------------------------------------------------------------
| price_pk | CREATION | MODIFICATION | entity_id_id | customer_group_id | final_price | min_price | check_date |
---------------------------------------------------------------------------------------------------------------------------
| 260 | 2017-12-12 12:53:39 | NULL | 15212 | 0 | 109 | 109 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 261 | 2017-12-12 12:53:39 | NULL | 15212 | 1 | 109 | 109 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 262 | 2017-12-12 12:53:39 | NULL | 15212 | 2 | 109 | 109 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 263 | 2017-12-12 12:53:39 | NULL | 15212 | 3 | 109 | 109 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 264 | 2017-12-12 12:53:39 | NULL | 15212 | 4 | 109 | 109 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 265 | 2017-12-12 12:53:39 | NULL | 15212 | 5 | 109 | 109 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 266 | 2017-12-12 12:53:39 | NULL | 15212 | 6 | 109 | 109 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 988 | 2017-12-12 12:53:42 | NULL | 15431 | 0 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 989 | 2017-12-12 12:53:42 | NULL | 15431 | 1 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 990 | 2017-12-12 12:53:42 | NULL | 15431 | 2 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 991 | 2017-12-12 12:53:42 | NULL | 15431 | 3 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 992 | 2017-12-12 12:53:42 | NULL | 15431 | 4 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 993 | 2017-12-12 12:53:42 | NULL | 15431 | 5 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 994 | 2017-12-12 12:53:42 | NULL | 15431 | 6 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 1002 | 2017-12-12 12:53:42 | NULL | 15433 | 0 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 1003 | 2017-12-12 12:53:42 | NULL | 15433 | 1 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 1004 | 2017-12-12 12:53:42 | NULL | 15433 | 2 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 1005 | 2017-12-12 12:53:42 | NULL | 15433 | 3 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 1006 | 2017-12-12 12:53:42 | NULL | 15433 | 4 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 1007 | 2017-12-12 12:53:42 | NULL | 15433 | 5 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
| 1008 | 2017-12-12 12:53:42 | NULL | 15433 | 6 | 545 | 545 | NULL |
---------------------------------------------------------------------------------------------------------------------------
它们在Magento_Id（magento）字段上连接在一起，该字段是一个整数。 产品表有正确的价格 价格表具有不同客户群的网站上的品红价格
每个产品可能有很多价格，我希望检查价格对我们的内部数据库是否正确（所以网站是正确的）
我写了一个SQL查询，告诉我价格表中的价格不等于Product表中的价格。
我也在PeeWee Orm工作了。
然而，我正在努力让peewee向我展示Price表中的final_price，即使我的SQL查询使用它作为比较器。
示例SQL：
SELECT
sku, magento_id, fm_price, price.final_price, `url`
FROM
products
JOIN
price
ON
`products`.`magento_id` = `price`.`entity_id_id` AND `price`.`customer_group_id` = 0
WHERE
`products`.`fm_price` != `price`.`final_price`
示例输出：
---------------------------------------------------------------------------------------------------------------
| sku | magento_id | fm_price | final_price | url |
---------------------------------------------------------------------------------------------------------------
| bsrhtstudio20h | 17581 | 399 | 449 | xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
---------------------------------------------------------------------------------------------------------------
| rolac60rw | 17697 | 479 | 475 | xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
---------------------------------------------------------------------------------------------------------------
| yamthr5 | 17833 | 169.85 | 169 | xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
---------------------------------------------------------------------------------------------------------------
| rolgk3b | 19636 | 155 | 152 | xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
---------------------------------------------------------------------------------------------------------------
| rolgk3 | 19763 | 155 | 152 | xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
---------------------------------------------------------------------------------------------------------------
| bosac3 | 20115 | 113 | 107.15 | xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
---------------------------------------------------------------------------------------------------------------
| bosbd2 | 20128 | 79 | 77.95 | xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
---------------------------------------------------------------------------------------------------------------
| bosch1 | 20140 | 77.5 | 71.92 | xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
---------------------------------------------------------------------------------------------------------------
我的Peewee查询
price_errors = Product.select(Product, Price.final_price).join(Price, on=(Product.magento == Price.entity_id) & (
Price.customer_group_id == 0)).where(Product.fm_price != Price.final_price)
这给了我正确的结果，但我无法访问Price.final_price来显示
我尝试过以下方法：
for price_errors中的price_error： 打印（price_error.price.final_price）
给出：
AttributeError: 'Product' object has no attribute 'price'
我可以访问price_set，但会显示通过外键加入相关的所有项目，而不是上面指定的加入
我已经为加入和选择添加了别名，但仍然无法获得任何内容。
如果我用
执行它price_errors = Product.raw("""SELECT id, sku, magento_id, fm_price,
price.final_price, `url`
FROM products
JOIN price
ON `products`.`magento_id` =
`price`.`entity_id_id` AND `price`.`customer_group_id` = 0
WHERE `products`.`fm_price` !=
`price`.`final_price`""")
然后我可以访问price_error.final_price
但是这种方式无法使用orm :(
答案 0 :(得分：0)
尝试：
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