预加载的include 属性应包含as: 'addresses'。它应该可以按预期工作。
例如
import { sequelize } from '../../db';
import { Model, DataTypes } from 'sequelize';
class User extends Model {}
User.init(
{
email: { type: DataTypes.STRING },
name: { type: DataTypes.STRING },
surname: { type: DataTypes.STRING },
},
{ sequelize, modelName: 'User' },
);
class UserAddress extends Model {}
UserAddress.init(
{
userId: { type: DataTypes.INTEGER },
city: { type: DataTypes.STRING },
street: { type: DataTypes.STRING },
house: { type: DataTypes.STRING },
},
{ sequelize, modelName: 'UserAddress' },
);
User.hasMany(UserAddress, { as: 'addresses' });
UserAddress.belongsTo(User);
(async function test() {
try {
await sequelize.sync({ force: true });
// seed
await User.create(
{
email: 'example@gmail.com',
name: 'Tom',
surname: 'jerry',
addresses: [{ city: 'London', street: 'a', house: 'b' }],
},
{ include: [{ model: UserAddress, as: 'addresses' }] },
);
// test
const user = await User.findOne({
where: { email: 'example@gmail.com' },
include: [{ model: UserAddress, as: 'addresses' }],
raw: true,
});
console.log(user);
} catch (error) {
console.log(error);
} finally {
sequelize.close();
}
})();
执行结果：
Executing (default): DROP TABLE IF EXISTS "UserAddress" CASCADE;
Executing (default): DROP TABLE IF EXISTS "User" CASCADE;
Executing (default): DROP TABLE IF EXISTS "User" CASCADE;
Executing (default): CREATE TABLE IF NOT EXISTS "User" ("id" SERIAL , "email" VARCHAR(255), "name" VARCHAR(255), "surname" VARCHAR(255), PRIMARY KEY ("id"));
Executing (default): SELECT i.relname AS name, ix.indisprimary AS primary, ix.indisunique AS unique, ix.indkey AS indkey, array_agg(a.attnum) as column_indexes, array_agg(a.attname) AS column_names, pg_get_indexdef(ix.indexrelid) AS definition FROM pg_class t, pg_class i, pg_index ix, pg_attribute a WHERE t.oid = ix.indrelid AND i.oid = ix.indexrelid AND a.attrelid = t.oid AND t.relkind = 'r' and t.relname = 'User' GROUP BY i.relname, ix.indexrelid, ix.indisprimary, ix.indisunique, ix.indkey ORDER BY i.relname;
Executing (default): DROP TABLE IF EXISTS "UserAddress" CASCADE;
Executing (default): CREATE TABLE IF NOT EXISTS "UserAddress" ("id" SERIAL , "userId" INTEGER, "city" VARCHAR(255), "street" VARCHAR(255), "house" VARCHAR(255), "UserId" INTEGER REFERENCES "User" ("id") ON DELETE SET NULL ON UPDATE CASCADE, PRIMARY KEY ("id"));
Executing (default): SELECT i.relname AS name, ix.indisprimary AS primary, ix.indisunique AS unique, ix.indkey AS indkey, array_agg(a.attnum) as column_indexes, array_agg(a.attname) AS column_names, pg_get_indexdef(ix.indexrelid) AS definition FROM pg_class t, pg_class i, pg_index ix, pg_attribute a WHERE t.oid = ix.indrelid AND i.oid = ix.indexrelid AND a.attrelid = t.oid AND t.relkind = 'r' and t.relname = 'UserAddress' GROUP BY i.relname, ix.indexrelid, ix.indisprimary, ix.indisunique, ix.indkey ORDER BY i.relname;
Executing (default): INSERT INTO "User" ("id","email","name","surname") VALUES (DEFAULT,$1,$2,$3) RETURNING *;
Executing (default): INSERT INTO "UserAddress" ("id","city","street","house","UserId") VALUES (DEFAULT,$1,$2,$3,$4) RETURNING *;
Executing (default): SELECT "User".*, "addresses"."id" AS "addresses.id", "addresses"."userId" AS "addresses.userId", "addresses"."city" AS "addresses.city", "addresses"."street" AS "addresses.street", "addresses"."house" AS "addresses.house", "addresses"."UserId" AS "addresses.UserId" FROM (SELECT "User"."id", "User"."email", "User"."name", "User"."surname" FROM "User" AS "User" WHERE "User"."email" = 'example@gmail.com' LIMIT 1) AS "User" LEFT OUTER JOIN "UserAddress" AS "addresses" ON "User"."id" = "addresses"."UserId";
{ id: 1,
email: 'example@gmail.com',
name: 'Tom',
surname: 'jerry',
'addresses.id': 1,
'addresses.userId': null,
'addresses.city': 'London',
'addresses.street': 'a',
'addresses.house': 'b',
'addresses.UserId': 1 }
检查数据库：
node-sequelize-examples=# select * from "User";
id | email | name | surname
----+-------------------+------+---------
1 | example@gmail.com | Tom | jerry
(1 row)
node-sequelize-examples=# select * from "UserAddress";
id | userId | city | street | house | UserId
----+--------+--------+--------+-------+--------
1 | | London | a | b | 1
(1 row)