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);
}
}
public EntityRelationResponse Update(EntityRelation relation)
{
EntityRelationResponse response = new EntityRelationResponse();
response.Timestamp = DateTime.UtcNow;
response.Object = relation;
bool hasPermisstion = SecurityContext.HasMetaPermission();
if (!hasPermisstion)
{
response.StatusCode = HttpStatusCode.Forbidden;
response.Success = false;
response.Message = "User have no permissions to manipulate erp meta.";
response.Errors.Add(new ErrorModel {
Message = "Access denied."
});
return(response);
}
response.Errors = ValidateRelation(relation, ValidationType.Update);
if (response.Errors.Count > 0)
{
response.Success = false;
response.Message = "The entity relation was not updated. Validation error occurred!";
return(response);
}
try
{
var storageRelation = relation.MapTo <DbEntityRelation>();
storageRelation.Name = storageRelation.Name.Trim();
var success = CurrentContext.RelationRepository.Update(storageRelation);
Cache.Clear();
if (success)
{
response.Success = true;
response.Message = "The entity relation was successfully updated!";
return(response);
}
else
{
response.Success = false;
response.Message = "The entity relation was not updated! An internal error occurred!";
return(response);
}
}
catch (Exception e)
{
Cache.Clear();
response.Success = false;
response.Object = relation;
response.Timestamp = DateTime.UtcNow;
if (ErpSettings.DevelopmentMode)
{
response.Message = e.Message + e.StackTrace;
}
else
{
response.Message = "The entity relation was not updated. An internal error occurred!";
}
return(response);
}
}
public EntityRelationResponse Read(string name)
{
EntityRelationResponse response = new EntityRelationResponse();
response.Timestamp = DateTime.UtcNow;
response.Object = null;
if (string.IsNullOrWhiteSpace(name))
{
response.Success = false;
response.Errors.Add(new ErrorModel("name", null, "The name argument is NULL."));
return(response);
}
var relations = Cache.GetRelations();
if (relations != null)
{
response.Object = relations.SingleOrDefault(x => x.Name == name);
response.Success = true;
if (response.Object != null)
{
response.Message = "The entity relation was successfully returned!";
}
else
{
response.Message = string.Format("The entity relation '{0}' does not exist!", name);
}
return(response);
}
try
{
relations = Read().Object;
response.Object = relations.SingleOrDefault(x => x.Name == name);
response.Success = false;
if (response.Object != null)
{
response.Success = true;
response.Message = "The entity relation was successfully returned!";
}
else
{
response.Success = true;
response.Message = string.Format("The entity relation '{0}' does not exist!", name);
}
return(response);
}
catch (Exception e)
{
response.Success = false;
if (ErpSettings.DevelopmentMode)
{
response.Message = e.Message + e.StackTrace;
}
return(response);
}
}
