/// <summary>
/// Initializes a new instance of the <see cref="UpdateEntryDto"/> class.
/// </summary>
/// <param name="entry">The state entry of an entity.</param>
/// <param name="mapper">The <see cref="IDynamicObjectMapper" /> used for mapping the property values.</param>
public UpdateEntryDto(IUpdateEntry entry, IDynamicObjectMapper mapper)
{
DynamicObject CreateValueDto(IProperty propertyBase, object value)
{
value = Utils.ConvertToProvider(value, propertyBase);
return(mapper.MapObject(value));
}
this.EntityTypeName = entry.EntityType.DisplayName();
this.EntityState = entry.EntityState;
this.PropertyDatas = entry.ToEntityEntry().Properties.Select(
prop => new PropertyData
{
Name = prop.Metadata.Name,
OriginalValueDto = prop.Metadata.GetOriginalValueIndex() >= 0 ? CreateValueDto(prop.Metadata, prop.OriginalValue) : null,
CurrentValueDto = CreateValueDto(prop.Metadata, prop.CurrentValue),
IsModified = prop.IsModified,
IsTemporary = prop.IsTemporary,
}).ToList();
if (entry.EntityType.HasDefiningNavigation())
{
var ownership = entry.EntityType.GetForeignKeys().Single(fk => fk.IsOwnership);
this.DelegatedIdentityDatas = ownership.Properties.Select(
prop => new PropertyData
{
Name = prop.Name,
OriginalValueDto = CreateValueDto(prop, entry.GetOriginalValue(prop)),
CurrentValueDto = CreateValueDto(prop, entry.GetCurrentValue(prop)),
IsModified = entry.IsModified(prop),
IsTemporary = entry.HasTemporaryValue(prop),
}).ToList();
}
}
protected override async IAsyncEnumerable <DynamicObject?> ConvertResult(IAsyncEnumerable <object?> queryResult)
{
await foreach (var item in queryResult.CheckNotNull(nameof(queryResult)))
{
yield return(_mapper.MapObject(item, _setTypeInformation));
}
}
protected override async IAsyncEnumerable <DynamicObject> ConvertResult(IAsyncEnumerable <object?> queryResult)
{
await foreach (var item in queryResult.CheckNotNull(nameof(queryResult)))
{
yield return(_mapper.MapObject(item, _setTypeInformation)
?? DynamicObject.CreateDefault(Context.SystemExpression?.Type));
}
}
/// <summary> /// Converts the query result into a collection of <see cref="DynamicObject"/>. /// </summary> /// <param name="queryResult">The reult of the query execution.</param> /// <returns>The mapped query result.</returns> protected override DynamicObject?ConvertResult(object?queryResult) => _mapper.MapObject(queryResult, _setTypeInformation);
private DynamicObject Map(object?value, Type?type)
=> value is null
? DynamicObject.CreateDefault(type)
: _mapper.MapObject(value, _setTypeInformation);
