Sequelize timestamp names

问题

I have a small issue with sequelize that I can't get around and it irritates the hell out of me.

I'm using camelCase for all my model attributes but I'm using snake case to persist them into the database (postgres). That part works fine except if I want to use sequelize timestamps option.

If I set underscored: false, timestamps get persisted to the database in camelCase.

If I set underscored: true, they get persisted in snake_case but then they are in snake_case on the model.

What I want to achieve is snake_case in the database and camelCase on the model for model timestamps.

It feels like those 2 options are mutually exclusive.

Thank you

回答1:

Yes, you can. Key is to combine model setting and field mappings. That's what I do: When you defining your model, add following field mappings:

createdAt: { type: Sequelize.DATE, field: 'created_at' },
updatedAt: { type: Sequelize.DATE, field: 'updated_at' },
deletedAt: { type: Sequelize.DATE, field: 'deleted_at' }

Then in model options:

timestamps: true,
underscored: true

Works like a charm for me. In this way you can also use paranoid option correctly.

回答2:

You can do some workaround like this:

UPDATE: As Sergey stated in his answer, we need to keep timestamp option to be true, so I fixed that.

new Sequelize(foo, bar, baz, {
  define: {
    timestamps: true,
    underscored: true
    createdAt: {
        type: DataTypes.DATE,
        defaultValue: DataTypes.NOW,
        name: 'createdAt',
        field: 'created_at'
    }
    updatedAt: {
        type: DataTypes.DATE,
        name: 'updatedAt',
        field: 'updated_at'
    }
  }
});

Related issue

来源：https://stackoverflow.com/questions/48209543/sequelize-timestamp-names

标签

node.js

sequelize.js