public EntityRelationListResponse Read(List <DbEntity> storageEntityList = null)
{
EntityRelationListResponse response = new EntityRelationListResponse();
response.Timestamp = DateTime.UtcNow;
response.Object = null;
try
{
var relations = Cache.GetRelations();
if (relations != null)
{
response.Object = relations;
response.Hash = Cache.GetRelationsHash();
response.Success = true;
response.Message = null;
return(response);
}
relations = CurrentContext.RelationRepository.Read().Select(x => x.MapTo <EntityRelation>()).ToList();
List <DbEntity> dbEntities = storageEntityList;
if (dbEntities == null)
{
dbEntities = new DbEntityRepository(CurrentContext).Read();
}
foreach (EntityRelation relation in relations)
{
var originEntity = dbEntities.Single(x => x.Id == relation.OriginEntityId);
var targetEntity = dbEntities.Single(x => x.Id == relation.TargetEntityId);
relation.OriginEntityName = originEntity.Name;
relation.TargetEntityName = targetEntity.Name;
relation.OriginFieldName = originEntity.Fields.Single(x => x.Id == relation.OriginFieldId).Name;
relation.TargetFieldName = targetEntity.Fields.Single(x => x.Id == relation.TargetFieldId).Name;
}
if (relations != null)
{
Cache.AddRelations(relations);
}
//we use instance from cache as return value, because in cache we deepcopy collection
response.Object = Cache.GetRelations();
response.Hash = Cache.GetRelationsHash();
response.Success = true;
response.Message = null;
return(response);
}
catch (Exception e)
{
response.Success = false;
response.Object = null;
response.Hash = null;
response.Timestamp = DateTime.UtcNow;
if (ErpSettings.DevelopmentMode)
{
response.Message = e.Message + e.StackTrace;
}
return(response);
}
}