public static Func <Func <TCommand, TEntity> > Execute()
{
var aa = typeof(CommandReciever <>)
.MakeGenericType(ServiceCollectionConfigurer.GetRequestType(typeof(TEntity).Name))
.GetProperty(nameof(ICommand.RequestPropertyValues));
//var aa = typeof(CreateCommand<,>).MakeGenericType(
// ServiceCollectionConfigurer.GetRequestType(typeof(TEntity).Name),
// ServiceCollectionConfigurer.GetResponseType(typeof(TEntity).Name))
// .GetProperty(nameof(ICommand.RequestPropertyValues));
//var getter = GenerateGetterLambda(aa);
var hmm = Expression.Parameter(typeof(CommandReciever <>)
.MakeGenericType(ServiceCollectionConfigurer.GetRequestType(typeof(TEntity).Name)), "command");
var prop = Expression.Property(hmm, nameof(ICommand.RequestPropertyValues)).Member;
var access = Expression.MakeMemberAccess(hmm, prop);
var loopVar = Expression.Parameter(typeof(KeyValuePair <string, object>), "loopVar");
var exprs = new List <MemberAssignment>();
//var call = Expression.Call(typeof(StaticModifier<TEntity>)
// .GetMethod(nameof(AddTest), new[] { typeof(List<MemberAssignment>), typeof(KeyValuePair<string, object>) }), new Expression[] { exprs, loopVar });
//var block = Expression.Block()
//var abc = ExpressionBuilder.ForEach(access,loopVar, )
//var lambda = Expression.Lambda<Func<TCommand, Dictionary<string, object>>>(access, hmm).Compile();
var lambda = GetRequestPropertyValues();
return(() =>
{
// var props = lambda();
var exprs = new List <MemberAssignment>();
//foreach (var propertyKeyPair in props)
//{
// //if (command.RequestForeignEntities.TryGetValue(propertyKeyPair.Key, out var foreignEntity))
// //{
// // CreateCollection(exprs, propertyKeyPair, foreignEntity);
// // continue;
// //}
// exprs.Add(
// Expression.Bind(typeof(TEntity).GetMember(propertyKeyPair.Key)[0],
// Expression.Constant(propertyKeyPair.Value)));
//}
var now = Expression.Constant(DateTime.UtcNow);
exprs.AddRange(new[]
{
Expression.Bind(_idMember, Expression.Constant(Guid.NewGuid())),
Expression.Bind(_createdMember, now),
Expression.Bind(_updatedMember, now)
});
var create = Expression.Lambda <Func <TCommand, TEntity> >(
Expression.MemberInit(
Expression.New(typeof(TEntity)), exprs)).Compile();
return create;
});
}
private static Func <TCommand, Dictionary <string, object> > GetRequestPropertyValues()
{
var hmm = Expression.Parameter(typeof(CommandReciever <>).MakeGenericType(ServiceCollectionConfigurer.GetRequestType(typeof(TEntity).Name)));
var prop = Expression.Property(hmm, nameof(ICommand.RequestPropertyValues)).Member;
var access = Expression.MakeMemberAccess(hmm, prop);
typeof(Type).GetMethod("GetMember", new Type[] { typeof(string[]) });
var lambda = Expression.Lambda <Func <TCommand, Dictionary <string, object> > >(access, hmm).Compile();
return(lambda);
}
