Storing data locally in Angular applications within the client-side environment

As I delve into Angular and TypeScript, I've encountered a perplexing issue. Let's say I have two classes - Employee and Department. On the server-side, I've established a Many-To-One relationship between these entities using Sequelize:

db.employee.belongsTo(db.department, {foreignKey: 'emp_depID'});
db.department.hasMany(db.employee);

In this schema, I've specified 'emp_depID' as the foreign key in the employee table, linking it to the department's id in the department table. Consequently, my client-side model mirrors this structure:

export interface Employee {
    id?: number;
    firstName: string;
    lastName: string;
    isActive: boolean;
    emp_depID: number;
}

export interface Department {
    id?: number;
    depName: string;
}

My question is, is it advisable to treat emp_depID solely as a number in this context?

Answer №1

Why is the mandatory? I believe it should be a primary key. Let's make it required instead of optional.

export interface Department {
    id: number;
    depName: string;
}

Also, the foreign key emp_depID should be a number since it corresponds to the id of the Department which is also a number.

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