Sequelize: Querying if ARRAY contains a value

问题

Suppose I have a PG ARRAY field:

id |    array    |
===|=============|
  1|{"1","2","3"}|

How do I use sequelize to query to see if the array field as the value 1.

I tried:

array: { $contains: "1" }

which gives me:

array @> "1"

with error:

Possibly unhandled SequelizeDatabaseError: array value must start with "{" or dimension information

UPDATE

I was able to do it by: array: { $contains: '{' + value + '}' }

Is there a more correct way?

回答1:

I realised that sequelize is expecting the condition to be an array:

array: { [Op.contains]: ["1"] }

That will work. Cheers!!

Bear in mind that Op is exported from sequelize

const { Op } = require('sequelize');

回答2:

Maybe so.

`{ genres: { $contains: [genreType] } }`

genres is an array. genreType can also be an array.

const Sequelize = require('sequelize');

const sequelize = new Sequelize('database', 'username', 'password', {
  host: 'localhost',
  dialect: /* one of 'mysql' | 'mariadb' | 'postgres' | 'mssql' */,
  operatorsAliases: Sequelize.Op.Aliases,
}); 

来源：https://stackoverflow.com/questions/29036363/sequelize-querying-if-array-contains-a-value