private void InitializeDefaultGetIdFunction()
{
var idProp = typeof(TEntity).GetProperty("Id", BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance)
?? typeof(TEntity).GetProperty(typeof(TEntity).Name + "Id", BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance);
if (idProp == null)
{
throw new InvalidOperationException("Couldn't automatically determine the entity key. Specify a 'get ID' function before using Find() using SetIdFunction() extension method.");
}
var entityParam = Expression.Parameter(typeof(TEntity));
var getIdLambda = Expression.Lambda(typeof(GetIdFunction <TEntity>),
Expression.Convert(Expression.MakeMemberAccess(entityParam, idProp), typeof(object)),
entityParam);
this.GetIdFunction = (GetIdFunction <TEntity>)getIdLambda.Compile();
}
/// <summary>
/// Sets the function that can return an entity's ID to the mock DbSet.
/// </summary>
/// <typeparam name="TEntity">The type of the entity</typeparam>
/// <param name="dbSet">The mock DbSet.</param>
/// <param name="getIdFunction">The function that can return an entity's ID.</param>
/// <returns>The mock DbSet.</returns>
public static IDbSet <TEntity> SetIdFunction <TEntity>(this IDbSet <TEntity> dbSet, GetIdFunction <TEntity> getIdFunction) where TEntity : class
{
((MockDbSet <TEntity>)dbSet).GetIdFunction = getIdFunction;
return(dbSet);
}
public Task <BigInteger> GetIdQueryAsync(GetIdFunction getIdFunction, BlockParameter blockParameter = null)
{
return(ContractHandler.QueryAsync <GetIdFunction, BigInteger>(getIdFunction, blockParameter));
}