static string GetPropertyExpression(MemberExpression memberInfo)
{
// Handle the member:
var property = memberInfo.Member as PropertyInfo;
if (property == null)
{
return(null);
}
// Fix for overriden properties:
try { property = memberInfo.Expression.Type.GetProperty(property.Name) ?? property; }
catch { }
if (CalculatedAttribute.IsCalculated(property))
{
return(null);
}
if (memberInfo.Expression.Type.IsNullable())
{
return(property.Name);
}
if (!property.DeclaringType.Implements <IEntity>())
{
return(null);
}
// Handle the "member owner" expression:
if (IsSimpleParameter(memberInfo.Expression))
{
if (IsForeignKey(property))
{
return(property.Name.TrimEnd(2));
}
return(property.Name);
}
else if (memberInfo.Expression is MemberExpression)
{
// The expression is itself a member of something.
var parentProperty = GetPropertyExpression(memberInfo.Expression as MemberExpression);
if (parentProperty == null)
{
return(null);
}
else
{
return($"{parentProperty}.{property.Name}");
}
}
else
{
return(null);
}
}
/// <summary>
/// Extracts the primitive properties of a specified type.
/// </summary>
static PropertyInfo[] ExtractPrimitiveProperties(Type type)
{
var result = new List <PropertyInfo>();
var primitiveTypes = new[] { typeof(string), typeof(int), typeof(int?), typeof(double), typeof(double?), typeof(DateTime), typeof(DateTime?) };
foreach (var p in type.GetProperties(BindingFlags.Instance | BindingFlags.Public).Where(p => p.CanRead).Where(p => primitiveTypes.Contains(p.PropertyType)))
{
if (p.Name == nameof(IsNew))
{
continue;
}
if (p.PropertyType.Implements <IEntity>())
{
continue;
}
if (CalculatedAttribute.IsCalculated(p))
{
continue;
}
result.Add(p);
}
return(result.ToArray());
}
