public object CreateEntityAndFillFromDto(TDto dto, string methodCtorName)
{
if (!_entityInfo.CanBeCreatedByCtorOrStaticMethod && !_entityInfo.CanBeCreatedViaAutoMapper)
{
throw new InvalidOperationException($"I cannot create the entity class {_entityInfo.EntityType.Name} because it has no public constructor, or valid static creator methods.");
}
//we look for methods to create/update a new entity in the following order
//1. A public static method that returns IStatusGeneric (chosing the one with the most parameters that the DTO has too)
//2. A public parameterised constructor (chosing the one with the most parameters that the DTO has too)
//3. By creating via parameterless ctor and then using AutoMapper to set the properties
var decodedName = _dtoInfo.GetSpecifiedName(methodCtorName, CrudTypes.Create);
if (_entityInfo.CanBeCreatedByCtorOrStaticMethod)
{
var ctorStaticToRun = _dtoInfo.GetCtorStaticCreatorToRun(decodedName, _entityInfo);
var runStatus = BuildCall.RunMethodOrCtorViaLinq(ctorStaticToRun,
dto, ctorStaticToRun.PropertiesMatch.MatchedPropertiesInOrder.ToList(), _context);
CombineStatuses(runStatus);
return(runStatus.Result);
}
if (_entityInfo.HasPublicParameterlessCtor && _entityInfo.CanBeUpdatedViaProperties)
{
var entityInstance = Activator.CreateInstance(_entityInfo.EntityType);
var mapper = new CreateMapper(_context, _wrapperMapperConfigs, typeof(TDto), _entityInfo);
mapper.Accessor.MapDtoToEntity(dto, entityInstance);
return(entityInstance);
}
throw new InvalidOperationException(
$"There was no way to create the entity class {_entityInfo.EntityType.Name} using {decodedName.ToString() ?? "any approach"}.");
}
public async Task <IStatusGeneric> ReadEntityAndUpdateViaDtoAsync(TDto dto, string methodName)
{
//first we need to load it
var keys = _context.GetKeysFromDtoInCorrectOrder(dto, _dtoInfo);
var mapper = new CreateMapper(_context, _configAndMapper, typeof(TDto), _entityInfo);
var entity = await mapper.Accessor.ReturnExistingEntityWithPossibleIncludesAsync(keys).ConfigureAwait(false);
if (entity == null)
{
return(new StatusGenericHandler()
.AddError(
$"Sorry, I could not find the {_entityInfo.EntityType.GetNameForClass()} you were trying to update."));
}
return(RunMethodViaLinq(dto, methodName, entity, mapper));
}
public IStatusGeneric ReadEntityAndUpdateViaDto(TDto dto, string methodName, params Expression <Func <TDto, object> >[] includes)
{
//first we need to load it
var keys = _context.GetKeysFromDtoInCorrectOrder(dto, _dtoInfo);
var mapper = new CreateMapper(_context, _configAndMapper, typeof(TDto), _entityInfo);
var entity = mapper.Accessor.ReturnExistingEntity(keys, includes);
if (entity == null)
{
return(new StatusGenericHandler()
.AddError(
$"Sorry, I could not find the {_entityInfo.EntityType.GetNameForClass()} you were trying to update."));
}
//we look for methods to update a new entity in the following order
//1. DDD-styled entity: A public access method that fits the DTO
//2. Standard styled entity: using AutoMapper to update the entity
var decodedName = _dtoInfo.GetSpecifiedName(methodName, CrudTypes.Update);
if (_entityInfo.CanBeUpdatedViaMethods && decodedName.NameType != DecodedNameTypes.AutoMapper)
{
//1. DDD-styled entity: A public access method that fits the DTO
//This gets one method to run. If it can't be found, or there are too many matches it throws an exception
var methodToUse = _dtoInfo.GetMethodToRun(decodedName, _entityInfo);
//This runs the method via LINQ
return(BuildCall.RunMethodViaLinq(methodToUse.Method,
dto, entity, methodToUse.PropertiesMatch.MatchedPropertiesInOrder.ToList(), _context, _createNewDBContext));
}
if (_entityInfo.CanBeUpdatedViaProperties)
{
//2. Standard styled entity: using AutoMapper to update the entity
mapper.Accessor.MapDtoToEntity(dto, entity);
return(new StatusGenericHandler());
}
throw new InvalidOperationException(
$"There was no way to update the entity class {_entityInfo.EntityType.Name} using {decodedName.ToString() ?? "any approach"}.");
}
/// <summary>
/// This look for methods to update a new entity in the following order
/// 1. DDD-styled entity: A public access method that fits the DTO
/// 2. Standard styled entity: using AutoMapper to update the entity</summary>
/// <param name="dto"></param>
/// <param name="methodName"></param>
/// <param name="entity"></param>
/// <param name="mapper"></param>
/// <returns></returns>
private IStatusGeneric RunMethodViaLinq(TDto dto, string methodName, dynamic entity, CreateMapper mapper)
{
var decodedName = _dtoInfo.GetSpecifiedName(methodName, CrudTypes.Update);
if (_entityInfo.CanBeUpdatedViaMethods && decodedName.NameType != DecodedNameTypes.AutoMapper)
{
//1. DDD-styled entity: A public access method that fits the DTO
//This gets one method to run. If it can't be found, or there are too many matches it throws an exception
var methodToUse = _dtoInfo.GetMethodToRun(decodedName, _entityInfo);
//This runs the method via LINQ
return(BuildCall.RunMethodViaLinq(methodToUse.Method,
dto, entity, methodToUse.PropertiesMatch.MatchedPropertiesInOrder.ToList(), _context));
}
if (_entityInfo.CanBeUpdatedViaProperties)
{
//2. Standard styled entity: using AutoMapper to update the entity
mapper.Accessor.MapDtoToEntity(dto, entity);
return(new StatusGenericHandler());
}
throw new InvalidOperationException(
$"There was no way to update the entity class {_entityInfo.EntityType.Name} using {decodedName.ToString() ?? "any approach"}.");
}
