/// <summary>
/// Execute the removal of attribute indices
/// <seealso cref=" AAlterTypeCommand"/>
/// </summary>
public override Exceptional Execute(DBContext myDBContext, GraphDBType myGraphDBType)
{
var retExceptional = new Exceptional();
foreach (var index in _IdxDropList)
{
var dropIdxExcept = myGraphDBType.RemoveIndex(index.Key, index.Value, myDBContext);
if (!dropIdxExcept.Success())
{
retExceptional.PushIExceptional(dropIdxExcept);
}
}
return retExceptional;
}
/// <summary>
/// Executes the removal of certain myAttributes.
/// <seealso cref=" AAlterTypeCommand"/>
/// </summary>
public override Exceptional Execute(DBContext myDBContext, GraphDBType myGraphDBType)
{
Exceptional result = new Exceptional();
foreach (String aAttributeName in _ListOfAttributes)
{
var attr = myGraphDBType.GetTypeAttributeByName(aAttributeName);
if (attr != null)
{
var idxs = new List<Indices.AAttributeIndex>(myGraphDBType.GetAttributeIndices(myDBContext, attr.UUID));
foreach (var item in idxs)
{
var remIdxResult = myGraphDBType.RemoveIndex(item.IndexName, item.IndexEdition, myDBContext);
if (remIdxResult.Failed())
{
result.PushIExceptional(remIdxResult);
}
}
}
else
{
result.PushIError(new Error_AttributeIsNotDefined(aAttributeName));
return result;
}
//Hack: remove myAttributes in DBObjects
var aTempResult = myDBContext.DBTypeManager.RemoveAttributeFromType(myGraphDBType.Name, aAttributeName, myDBContext.DBTypeManager);
if (aTempResult.Failed())
{
result.PushIExceptional(aTempResult);
return result;
}
}
return result;
}
public override Exceptional Execute(DBContext dbContext, GraphDBType graphDBType)
{
var listOfTypeAttrs = new List<TypeAttribute>();
var retExcept = new Exceptional();
foreach (var attr in _ListOfAttributes)
{
var typeAttr = graphDBType.GetTypeAttributeByName(attr);
if (typeAttr == null)
{
return new Exceptional(new Error_AttributeIsNotDefined(attr));
}
var attrType = dbContext.DBTypeManager.GetTypeByUUID(typeAttr.DBTypeUUID);
if (attrType == null)
return new Exceptional(new Error_TypeDoesNotExist(""));
if (attrType.IsUserDefined)
return new Exceptional(new Error_InvalidReferenceAssignmentOfUndefAttr());
listOfTypeAttrs.Add(typeAttr);
}
var dbobjects = dbContext.DBObjectCache.SelectDBObjectsForLevelKey(new LevelKey(graphDBType, dbContext.DBTypeManager), dbContext);
foreach (var item in dbobjects)
{
if (!item.Success())
{
retExcept.PushIExceptional(item);
}
else
{
foreach (var attr in listOfTypeAttrs)
{
if (item.Value.HasAttribute(attr.UUID, graphDBType))
{
var attrVal = item.Value.GetAttribute(attr.UUID);
var addExcept = item.Value.AddUndefinedAttribute(attr.Name, attrVal, dbContext.DBObjectManager);
if (!addExcept.Success())
retExcept.PushIExceptional(addExcept);
item.Value.RemoveAttribute(attr.UUID);
var saveExcept = dbContext.DBObjectManager.FlushDBObject(item.Value);
if (!saveExcept.Success())
retExcept.PushIExceptional(saveExcept);
}
}
}
}
var indices = graphDBType.GetAllAttributeIndices();
List<AAttributeIndex> idxToDelete = new List<AAttributeIndex>();
//remove attributes from type
foreach (var attr in listOfTypeAttrs)
{
foreach (var item in indices)
{
var index = item.IndexKeyDefinition.IndexKeyAttributeUUIDs.Find(idx => idx == attr.UUID);
if (index != null && item.IndexKeyDefinition.IndexKeyAttributeUUIDs.Count == 1)
{
idxToDelete.Add(item);
}
}
//remove indices
foreach (var idx in idxToDelete)
{
var remExcept = graphDBType.RemoveIndex(idx.IndexName, idx.IndexEdition, dbContext.DBTypeManager);
if (!remExcept.Success())
{
retExcept.PushIExceptional(remExcept);
}
}
idxToDelete.Clear();
graphDBType.RemoveAttribute(attr.UUID);
var flushExcept = dbContext.DBTypeManager.FlushType(graphDBType);
if (!flushExcept.Success())
{
retExcept.PushIExceptional(flushExcept);
}
}
return retExcept;
}