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Create Migrations & Adding Tables
Keith edited this page Oct 20, 2021
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This is an idiots guide to adding Entity Framework Models to your project.
- Create your Model in the Project / Folder - BlazorBoilerplate.Infrastructure.Storage DataModels - See example below
- Update ApplicationDbContext in Server/BlazorBoilerplate.Storage -
public DbSet<NEWMODEL> NEWMODELS { get; set; }
- Add any foreign keys to the 'OnModelCreating(ModelBuilder modelBuilder)' function. Read EF Documentation
- Powershell ->
cd Server/BlazorBoilerplate.Storage
- Build Solution
- Execute
dotnet ef --startup-project ../BlazorBoilerplate.Server/ migrations add MIGRATION_NAME -c ApplicationDbContext --verbose --no-build --configuration Debug -o "Migrations/ApplicationDb
- Replace MIGRATION_NAME - Review BlazorBoilerplate.Storage Migrations/ApplicationDb for the new migration
- Run the project. The database changes should now be applied.
More details are found in Utils/Scripts/ef-migrations.cmd
To create default values for your Model, Create a Partial Class in BlazorBoilerplate.Share.Db.Dto with the default Constructor / default values. Review the UserProfile.cs class as an example. The above partial class extends Breeze entity automatically generated (client side).
Here is an Example of a Contacts Table
using BlazorBoilerplate.Infrastructure.Storage.Permissions;
using BlazorBoilerplate.Infrastructure.Storage.DataInterfaces;
using System.ComponentModel.DataAnnotations;
#nullable enable
namespace BlazorBoilerplate.Infrastructure.Storage.DataModels
{
[Permissions(Actions.CRUD)]
public partial class Contact : IAuditable, ISoftDelete
{
[Key]
public long Id { get; set; }
[Required(ErrorMessage = "FieldRequired")]
[MaxLength(128)]
public string? LocationId { get; set; }
[MaxLength(128)]
public string? FirstName { get; set; }
[MaxLength(128)]
public string? LastName { get; set; }
[MaxLength(128)]
public string? Email { get; set; }
[MaxLength(28)]
public string? Phone { get; set; }
[MaxLength(128)]
public string? Address1 { get; set; }
[MaxLength(128)]
public string? City { get; set; }
[MaxLength(128)]
public string? Country { get; set; }
[MaxLength(128)]
public string? State { get; set; }
[MaxLength(128)]
public string? PostalCode { get; set; }
[MaxLength(128)]
public string? Website { get; set; }
[MaxLength(128)]
public string? Timezone { get; set; }
[MaxLength(2048)]
public string? Tags { get; set; }
[MaxLength(2048)]
public string? CustomFields { get; set; }
public bool DND { get; set; }
}
}