private IDictionary <string, PreValue> GetPreValuesFromDataType(Type type, PreValueContext context = null)
{
try
{
IDictionary <string, PreValue> preValues;
var factoryAttr = type.GetCodeFirstAttribute <PreValueFactoryAttribute>();
if (context == null)
{
context = new PreValueContext(type);
}
if (factoryAttr != null)
{
preValues = factoryAttr.GetFactory().GetPreValues(context);
}
else if (type.IsEnum)
{
preValues = GetEnumPreValues(type);
}
else if (type.Implements <IPreValueFactory>())
{
preValues = ((IPreValueFactory)Activator.CreateInstance(type)).GetPreValues(context);
}
else
{
preValues = type.GetCodeFirstAttributes <PreValueAttribute>().ToDictionary(x => x.Alias, x => x.PreValue);
}
return(preValues);
}
catch (Exception ex)
{
throw new CodeFirstException("Failed to get pre-values for type " + type.FullName, ex);
}
}
public IDictionary <string, PreValue> GetPreValues(PreValueContext context)
{
var result = new Dictionary <string, PreValue>();
var propAttrs = context.CurrentMember.GetCodeFirstAttributes <ImageCropAttribute>().Select(x => new ImageCropDefinition()
{
Alias = x.Alias, Height = x.Height, Width = x.Width
});
var typeAttrs = this.GetType().GetCodeFirstAttributes <ImageCropAttribute>().Select(x => new ImageCropDefinition()
{
Alias = x.Alias, Height = x.Height, Width = x.Width
});;
var typePropAttrs = GetCropsFromProperties();
var attrs = propAttrs.Union(typePropAttrs.Values).Union(typeAttrs).ToArray();
result.Add("crops", new PreValue(JsonConvert.SerializeObject(attrs)));
return(result);
}
private IDictionary <string, PreValue> GetPreValuesFromProperty(PropertyInfo instance)
{
IDictionary <string, PreValue> preValues;
var factoryAttr = instance.GetCodeFirstAttribute <InstancePreValueFactoryAttribute>();
var instanceAttributes = instance.GetCodeFirstAttributes <InstancePreValueAttribute>();
var redirect = instance.GetCustomAttributes().FirstOrDefault(x => x.GetType().Implements <IDataTypeRedirect>()) as IDataTypeRedirect;
PreValueContext context = new PreValueContext(instance);
if (factoryAttr != null)
{
preValues = factoryAttr.GetFactory().GetPreValues(context);
}
else if (instanceAttributes.Count() > 0)
{
try
{
preValues = instanceAttributes.ToDictionary(x => x.Alias, x => x.PreValue);
}
catch (ArgumentException ex)
{
throw new CodeFirstException("Duplicate pre-value alias on data type instance " + instance.DeclaringType.Name + "." + instance.Name, ex);
}
}
else if (redirect != null)
{
if (redirect is IInitialisablePropertyAttribute)
{
(redirect as IInitialisablePropertyAttribute).Initialise(instance);
}
preValues = GetPreValuesFromDataType(redirect.Redirect(instance), context);
}
else
{
preValues = GetPreValuesFromDataType(instance.PropertyType, context);
}
return(preValues);
}
public override IDictionary <string, PreValue> GetPreValues(PreValueContext context)
{
return(base.GetPreValuesInternal(context, 1));
}
