public ICollection <RelatedEntityAttribute> GetRelatedEntityAttribute(PropertyInfo propertyInfo)
{
lock (_syncObj)
{
if (!_cacheDictRelatedEntityAttrs.ContainsKey(propertyInfo))
{
var result = _sourceReflection.GetRelatedEntityAttribute(propertyInfo);
_cacheDictRelatedEntityAttrs.Add(propertyInfo, result);
}
return(_cacheDictRelatedEntityAttrs[propertyInfo]);
}
}
public static T MappedToType <T>(this IDataReader reader, IDbConnection connection) where T : class, IEntity, new()
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
var nameProps = ReflectionWrapper.GetPropertiesByFieldNamesAttrs(typeof(T));
if (reader.FieldCount < nameProps.Count)
{
throw new ArgumentException("Entity could not be mapped. Entity colums is not exists.");
}
var result = new T();
foreach (var prop in nameProps)
{
try
{
var attrs = ReflectionWrapper.GetFieldNameAttribute(prop);
var exit = false;
var i = 0;
if (attrs.Count != 0)
{
while (i <= reader.FieldCount - 1 && !exit)
{
if (reader.GetName(i) == attrs.First().Value)
{
exit = true;
prop.SetValue(result, reader[i].CastDbTypes(prop.PropertyType), null);
}
i++;
}
}
}
catch (Exception)
{
throw new InvalidCastException(
string.Format("Uncorrect mapping fields to .net types in enity:{0}; field name:{1}", typeof(T), prop.Name));
}
}
foreach (var relatedProp in ReflectionWrapper.GetPropertiesByRelatedEntityAttrs(typeof(T)))
{
try
{
var relatedAttr = ReflectionWrapper.GetRelatedEntityAttribute(relatedProp);
foreach (var resProp in ReflectionWrapper.GetPropertiesByFieldNamesAttrs(result.GetType()))
{
if (resProp.Name == relatedAttr.First().FieldName)
{
var id = Convert.ToInt32(resProp.GetValue(result, null));
var fieldName = relatedAttr.First().RelatedFieldName;
var connString = connection.ConnectionString;
var type = relatedProp.PropertyType.GetGenericArguments()[0];
var param = Activator.CreateInstance(type);
var propertyInfo = type.GetProperty(fieldName);
propertyInfo.SetValue(param, id, null);
var instance = Activator.CreateInstance(relatedProp.PropertyType, new object[] { param, connString });
relatedProp.SetValue(result, instance, null);
break;
}
}
}
catch (Exception)
{
throw new InvalidCastException(
string.Format("Uncorrect mapping related fields to .net types in enity:{0}; field name:{1}", typeof(T), relatedProp.Name));
}
}
return(result);
}