次のスクリプトがあります。
from peewee import *
db = MySQLDatabase('database', user='root')
class BaseModel(Model):
class Meta:
database = db
class Locations(BaseModel):
location_id = PrimaryKeyField()
location_name = CharField()
class Units(BaseModel):
unit_id = PrimaryKeyField()
unit_num = IntegerField()
location_id = ForeignKeyField(Locations, related_name='units')
db.connect()
for location in Locations.select():
for pod_num in range (1, 9):
unit = Units.create(unit_num=pod_num, location_id=location.location_id)
テーブルの場所には行がほとんどなく、テーブル ユニットは空です。起動しようとすると、例外が発生し続けます:
(1054, "Unknown column 'location_id_id' in 'field list'")
私は何を間違っていますか?
テーブルを作成するための SQL スクリプトの一部を次に示します。
CREATE TABLE IF NOT EXISTS `database`.`units` (
`unit_id` INT UNSIGNED NOT NULL AUTO_INCREMENT ,
`unit_num` TINYINT UNSIGNED NOT NULL ,
`location_id` INT UNSIGNED NOT NULL ,
PRIMARY KEY (`unit_id`) ,
UNIQUE INDEX `ID_UNIQUE` (`unit_id` ASC) ,
INDEX `location_idx` (`location_id` ASC) ,
CONSTRAINT `location_id`
FOREIGN KEY (`location_id` )
REFERENCES `database`.`locations` (`location_id` )
ON DELETE CASCADE
ON UPDATE CASCADE)
ENGINE = InnoDB;
前もって感謝します!