Dbset naming rules and class naming rules

Question

I had a Dbset declared like so:

public DbSet<James_BobRelation> James_Bobs { get; set; }

my Sql table is called James_Bobs

the class holding the data was called James_BobRelation

This does not work... when making calls to this within a repository:

EFDbContext context = new EFDbContext();
context.James_Bobs;
// It thinks the table is called James_BobRelation instead?

and yet when I changes the class name to James_Bobs, it did work?

What's the rules?

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Further more, this totally confused me... I have a database table called Sausages

the DbSet is like so:

public DbSet<Sausage> Sausages { get; set; }

When I called upon Sausages that actually worked! even though the class in this case was Sausage... does Entity framework add the 's' if it thinks it can? it's SOO CONFUSING ME

Answer 1

In the first case, it will be looking for James_BobRelations by default; you can change that behavior:

protected override void OnModelCreating(ModelBuilder modelBuilder)
{
    modelBuilder.Entity<James_BobRelation>().MapSingleType().ToTable("TableNameHere");
}

Basically the default behavior is to pluralize your object and infer the table name from that. IE it will infer a name of Sausages for a class named Sausage.