seeding

MVC 5 Seed Users and Roles

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Here is example of usual Seed approach: protected override void Seed(SecurityModule.DataContexts.IdentityDb context) { if (!context.Roles.Any(r => r.Name == “AppAdmin”)) { var store = new RoleStore<IdentityRole>(context); var manager = new RoleManager<IdentityRole>(store); var role = new IdentityRole { Name = “AppAdmin” }; manager.Create(role); } if (!context.Users.Any(u => u.UserName == “founder”)) { var store = new UserStore<ApplicationUser>(context); var … Read more

EntityType ‘IdentityUserLogin’ has no key defined. Define the key for this EntityType

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In my case I had inherited from the IdentityDbContext correctly (with my own custom types and key defined) but had inadvertantly removed the call to the base class’s OnModelCreating: protected override void OnModelCreating(DbModelBuilder modelBuilder) { base.OnModelCreating(modelBuilder); // I had removed this /// Rest of on model creating here. } Which then fixed up my missing … Read more

Seeding the random number generator in Javascript

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No, it is not possible to seed Math.random(). I’ve implemented a number of good, short and fast Pseudorandom number generator (PRNG) functions in plain JavaScript. All of them can be seeded and provide high quality numbers. First of all, take care to initialize your PRNGs properly. To keep things simple, the generators below have no … Read more