Argthtjtr

Customer

public class Customer

{

    public Customer()

    {

        Addresses = new List<Address>();

        Reviews = new List<Review>();

        Products = new List<Product>();

    }

    [Key]

    public string Email { get; set; }

    public string FirstName { get; set; }

    public string LastName { get; set; }

    public string Password { get; set; }

    public Address DefaultAddress { get; set; }

    public int DefaultAddressId { get; set; }

    public List<Address> Addresses { get; set; }

    public List<Review> Reviews { get; set; }

    public List<Product> Products { get; set; }

}

Product

public class Product

{

    public Product()

    {

        Reviews = new List < Review >();

    }



    public int Id { get; set; }

    public Category Category { get; set; }

    public string Name { get; set; }  

    public string Description { get; set; }

    public string Specification { get; set; }

    public List<Review> Reviews { get; set; }

    public List<Customer> Customers { get; set; }

}

Review

public class Review

{

    public int Id { get; set; }

    public string Text { get; set; }

    public int Stars { get; set; }

    [Required] 

    public int ProductId { get; set; }

    [Required]

    public string CustomerId { get; set; }

}

}

Generated model

I want the relationship between Review and Customer to 1 to many not 0..1 to many. Each review must belong to one customer. I don't understand how the relationship is mapped properly for Review - Product but not for the customer.

i only used Customer and Review models since those are the once you wanted an answer.
Following is the your model classes should be.

public class Customer

{

    public Customer()

    {

        Reviews = new HashSet<Review>();

    }



    [Key]

    public string Email { get; set; }

    public string FirstName { get; set; }

    public string LastName { get; set; }

    public string Password { get; set; }



    public ICollection<Review> Reviews { get; set; }



}



public class Review

{

    public int Id { get; set; }

    public string Text { get; set; }

    public int Stars { get; set; }

    [Required]

    public int ProductId { get; set; }

    [Required]

    public string CustomerId { get; set; }



    [ForeignKey("CustomerId")]

    public Customer Customer { get; set; }

}

this way you can have customers Review collection and cast it in to a list if you want.use Include() method in your linq query to lazy load the customers review collection.
for an example:

var customer = dbContext.Customer.Include("Reviews").where(x => x.Email == "john@gmail.com").FirstOrDefault();