给出了以下迁移摘要:
const uuid = require('uuid');
queryInterface.createTable('listings', {
id: {
type: Sequelize.UUID,
defaultValue: () => uuid.v4(),
primaryKey: true,
allowNull: false,
isUnique: true,
},
});
和另一个:
queryInterface.createTable('listing_detail_info', {
id: {
type: Sequelize.INTEGER(11),
primaryKey: true,
autoIncrement: true,
allowNull: false,
isUnique: true,
},
listingId: {
type: Sequelize.UUID,
isUnique: true,
allowNull: false,
field: 'listing_id',
references: { model: 'listings', key: 'id' },
},
});
发生以下错误:
code: 'ER_CANNOT_ADD_FOREIGN',
errno: 1215,
sqlState: 'HY000',
sqlMessage: 'Cannot add foreign key constraint',
sql:
'CREATE TABLE IF NOT EXISTS `listing_detail_info` (`id` INTEGER(11) NOT NULL auto_increment , `listing_id` CHAR(36) BINARY NOT NULL, PRIMARY KEY (`id`), FOREIGN KEY (`listing_id`) REFERENCES `listings` (`id`)) ENGINE=InnoDB;' },
我很确定它们是相同的数据类型(均为Sequleize.UUID),并且已经成功创建了上一个表,但是不知道为什么仍会发生这种情况...
答案 0 :(得分:0)
只需尝试
queryInterface.createTable('listing_detail_info', {
id: {
type: Sequelize.INTEGER(11),
primaryKey: true,
autoIncrement: true,
allowNull: false,
isUnique: true,
},
listingId: {
type: Sequelize.UUID,
isUnique: true,
allowNull: false,
},
});
如果给出了解决方案,则存在添加外键约束的问题。