public static IMapperConfigurationExpression IgnoreMappingOnNullOrIgnoredValue(this IMapperConfigurationExpression expression)
{
expression.ForAllPropertyMaps(map =>
{
Type sourceType = map.TypeMap.SourceType;
Type destType = map.TypeMap.DestinationType;
return(sourceType.IsSubclassOf(typeof(DtoBase)) && !destType.IsSubclassOf(typeof(DtoBase)));
},
(map, configuration) =>
{
var prop = map.SourceMember as PropertyInfo;
if (prop != null)
{
configuration.Condition((src, dest, srcMember, destMember) =>
{
IgnoreMappingIfValueAttribute attribute = map.SourceMember.GetCustomAttributes().OfType <IgnoreMappingIfValueAttribute>().SingleOrDefault();
if (attribute != null)
{
return(!Object.Equals(srcMember, attribute.IgnoredValue));
}
else
{
return(prop.GetValue(src) != null && srcMember != null);
}
});
}
}
);
return(expression);
}
public static IMapperConfigurationExpression IgnoreRetrievingAttributeForActionProperty(this IMapperConfigurationExpression expression)
{
expression.ForAllPropertyMaps(map => {
Type sourceType = map.TypeMap.SourceType;
Type destType = map.TypeMap.DestinationType;
if (!sourceType.IsSubclassOf(typeof(DtoBase)) && destType.IsSubclassOf(typeof(DtoBase)) && map.DestinationProperty != null)
{
return(map.DestinationProperty.GetCustomAttributes().OfType <IgnoreRetrievingForAttribute>().Any());
}
return(false);
},
(map, configuration) =>
{
Type sourceType = map.TypeMap.SourceType;
Type destType = map.TypeMap.DestinationType;
configuration.PreCondition((opts) =>
{
ActionFlags actions = opts.Options.GetItem("ActionFlags", ActionFlags.Get | ActionFlags.List);
IgnoreRetrievingForAttribute attribute = map.DestinationProperty.GetCustomAttributes().OfType <IgnoreRetrievingForAttribute>().SingleOrDefault();
if (attribute != null)
{
if (attribute.actions.HasFlag(actions))
{
return(false);
}
}
return(true);
});
}
);
return(expression);
}
public static void AddIgnoreMapAttribute(this IMapperConfigurationExpression configuration)
{
configuration.ForAllMaps((typeMap, mapExpression) => mapExpression.ForAllMembers(memberOptions =>
{
if (memberOptions.DestinationMember.Has <IgnoreMapAttribute>())
{
memberOptions.Ignore();
}
}));
configuration.ForAllPropertyMaps(propertyMap => propertyMap.SourceMember?.Has <IgnoreMapAttribute>() == true,
(_, memberOptions) => memberOptions.Ignore());
}
public virtual void Configure(IMapperConfigurationExpression mapperConfigExpression)
{
mapperConfigExpression.CreateMissingTypeMaps = true;
mapperConfigExpression.ForAllPropertyMaps(p => p.DestinationProperty.GetCustomAttribute <ForeignKeyAttribute>() != null &&
p.DestinationProperty.GetCustomAttribute <InversePropertyAttribute>() != null &&
!typeof(IEnumerable).IsAssignableFrom(p.DestinationProperty.ReflectedType) &&
typeof(IDto).IsAssignableFrom(p.DestinationProperty.ReflectedType),
(pConfig, member) =>
{
pConfig.Ignored = true;
});
}
public virtual void Configure(IMapperConfigurationExpression mapperConfigExpression)
{
bool MapperPropConfigurationCondition(PropertyMap p)
{
return((p.DestinationMember.GetCustomAttribute <ForeignKeyAttribute>() != null || p.DestinationMember.GetCustomAttribute <InversePropertyAttribute>() != null) &&
!typeof(IEnumerable).IsAssignableFrom(p.DestinationMember.ReflectedType) &&
typeof(IDto).IsAssignableFrom(p.DestinationMember.ReflectedType));
}
mapperConfigExpression.ForAllPropertyMaps(MapperPropConfigurationCondition, (p, member) =>
{
p.Ignored = true;
});
}
public static void AddProfile(IMapperConfigurationExpression cfg)
{
bool IsToRepeatedField(PropertyMap pm)
{
if (pm.DestinationPropertyType.IsConstructedGenericType)
{
var destGenericBase = pm.DestinationPropertyType.GetGenericTypeDefinition();
return(destGenericBase == typeof(RepeatedField <>));
}
return(false);
}
cfg.ForAllPropertyMaps(IsToRepeatedField, (propertyMap, opts) => opts.UseDestinationValue());
cfg.CreateMap <string, string>().ConvertUsing((src, dest) => src ?? string.Empty);
}
public virtual void Configure(IMapperConfigurationExpression mapperConfigExpression)
{
mapperConfigExpression.ForAllPropertyMaps(p =>
{
var type = p.DestinationType;
if (type != typeof(string) && typeof(IEnumerable).IsAssignableFrom(type))
{
type = type.HasElementType ? type.GetElementType() : type.GetGenericArguments().ExtendedSingle($"Getting element type of {p.DestinationName}");
}
return(typeof(IDto).IsAssignableFrom(type));
}, (p, conf) =>
{
conf.ExplicitExpansion();
});
}
/// <summary>
/// 此扩展方法是判断属性为Null时不进行属性映射
/// </summary>
/// <param name="cfg"></param>
public static void IgnoreSourceWhenNull(this IMapperConfigurationExpression cfg)
{
cfg.ForAllPropertyMaps(pm =>
{
if (pm.SourceMember != null && (pm.DestinationMember.Name != pm.SourceMember.Name))
{
return(false);
}
if (pm.SourceType == null)
{
return(false);
}
var isNullable = pm.SourceType.IsGenericType && (pm.SourceType.GetGenericTypeDefinition() == typeof(Nullable <>));
return(isNullable || pm.SourceType.IsValueType || pm.SourceType.IsPrimitive);
}, (pm, c) =>
{
c.MapFrom <Resolver, object>(pm.SourceMember.Name);
});
}
