/// <summary>
/// Gets the model for this DataReader's currents result
/// </summary>
/// <param name="reader">the reader having a current result open</param>
/// <param name="targetType">the targetType into which to convert the reader's value</param>
/// <param name="rules">a set of rules that applies to the current type</param>
/// <param name="fieldNames">a set of names provided by the current reader</param>
/// <returns>an instance representing the value of the current result of the reader</returns>
internal static object GetModel(this IDataReader reader, Type targetType, MapRule[] rules, string[] fieldNames)
{
object retVal = targetType.GetConstructor(Type.EmptyTypes).Invoke(null);
for (int i = 0; i < rules.Length; i++)
{
MapRule r = rules[i];
if (r != null && fieldNames.Any(n => n.Equals(r.FieldName, StringComparison.OrdinalIgnoreCase)))
{
try
{
object val = reader[r.FieldName];
if (!r.UseExpression)
{
r[retVal] = val;
}
else
{
r[retVal] = ProcessResolveExpression(r.ValueResolveExpression, val);
}
}
catch (Exception ex)
{
LogEnvironment.LogEvent($"Error during model bind! {ex.OutlineException()}", LogSeverity.Warning);
}
}
else if (r != null)
{
LogEnvironment.LogDebugEvent($"No Value found for MapRule {r.FieldName} ({r.UseExpression};{r.ValueResolveExpression}", LogSeverity.Report);
}
}
return(retVal);
}
/// <summary>
/// Maps the data of the dynamicResult instance into the T - Instance
/// </summary>
/// <param name="item">the item that contains the original data</param>
/// <param name="target">the target instance into which the data is mapped</param>
/// <param name="modelType">the meta-type used to identify mapped columns</param>
public static void ToModel(this DynamicResult item, object target, Type modelType)
{
string[] fieldNames = item.GetDynamicMemberNames().ToArray();
MapRule[] rules = DbColumnAttribute.GetRules(modelType).Clone() as MapRule[];
for (int i = 0; i < rules.Length; i++)
{
MapRule r = rules[i];
if (r != null && fieldNames.Any(n => n.Equals(r.FieldName, StringComparison.OrdinalIgnoreCase)))//Array.IndexOf(fieldNames, r.FieldName.ToLower()) != -1))))
{
try
{
object val = item[r.FieldName];
if (!r.UseExpression)
{
r[target] = val;
}
else
{
r[target] = ProcessResolveExpression(r.ValueResolveExpression, val);
}
}
catch (Exception ex)
{
LogEnvironment.LogEvent(string.Format("Failed to set value{1}{0}", ex.OutlineException(), Environment.NewLine), LogSeverity.Warning, "DataAccess");
}
}
else if (r != null)
{
LogEnvironment.LogDebugEvent($"No Value found for MapRule {r.FieldName} ({r.UseExpression};{r.ValueResolveExpression}", LogSeverity.Report);
}
}
}
