Seems like Visual Studio Code Intelisense is mistakenly flagging errors when utilizing the sequelize get method with Typescript

I am working with a Sequelize model that looks like this:

export class Opportunity extends Model {
  @IsUUID(4)
  @PrimaryKey
  @Column({
    type: DataType.UUID,
  })
  opportunityId: string;

  @ForeignKey(() => AccountContact)
  @Column({
    type: DataType.UUID,
   })
   accountContactId: string;
        
   @BelongsTo(() => AccountContact)
   accountContact: AccountContact;
}

When I use this model, I encounter an issue where Visual Studio Code incorrectly indicates that the method getAccountContact does not exist in type Opportunity. However, Sequelize actually creates this method dynamically and it functions correctly.

Is there a way to make Visual Studio Code recognize these on-the-fly created methods? The false errors are causing some confusion for me as certain file names are highlighted in red.

I understand that Eager Loading could be a solution, but in this particular scenario, it may not be appropriate.

Answer №1

After doing some further research, I stumbled upon this article: https://github.com/sequelize/sequelize-typescript#type-safe-usage-of-auto-generated-functions which suggests the following:

When a relation is created in Sequelize, it generates various methods on the corresponding models. For instance, when establishing a 1:n relationship between ModelA and ModelB, an instance of ModelA will have functions like getModelBs, setModelBs, addModelB, removeModelB, hasModelB. These functions still exist with sequelize-typescript. However, TypeScript may not recognize them and will throw errors if you try to access getModelB, setModelB, or addModelB. To satisfy TypeScript, the Model.prototype of sequelize-typescript has $set, $get, and $add functions that can be utilized.

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