protected override void SetValue(ModelRole role, MetadataPermission permission)
{
var tp = role.TablePermissions.FindByName(Column.Table.Name);
var cp = tp != null?tp.MetadataObject.ColumnPermissions.Find(Column.Name) : null;
// Permission removed:
if (permission == MetadataPermission.Default)
{
// Do nothing if same value or no CP defined
if (cp == null)
{
return;
}
// Otherwise, remove CP:
Column.Handler.UndoManager.Add(new UndoPropertyChangedAction(Column, "ObjectLevelSecurity", cp.MetadataPermission, permission, role.Name));
tp.MetadataObject.ColumnPermissions.Remove(cp);
}
else // Non-default permission assigned:
{
Handler.BeginUpdate("object level security");
// Create TP if not exists:
if (tp == null)
{
tp = TablePermission.CreateFromMetadata(role, new TOM.TablePermission {
Table = Column.Table.MetadataObject
});
}
// Create CP if not exists:
if (cp == null)
{
cp = new TOM.ColumnPermission {
Column = Column.MetadataObject
};
tp.MetadataObject.ColumnPermissions.Add(cp);
}
// Do nothing if same value
if ((MetadataPermission)cp.MetadataPermission == permission)
{
return;
}
// Otherwise, assign the new permission to CP:
Column.Handler.UndoManager.Add(new UndoPropertyChangedAction(Column, "ObjectLevelSecurity", cp.MetadataPermission, permission, role.Name));
cp.MetadataPermission = (TOM.MetadataPermission)permission;
Handler.EndUpdate();
}
}
protected override void SetValue(Table table, MetadataPermission permission)
{
var tp = Role.TablePermissions.FindByName(table.Name);
if (tp == null && permission == MetadataPermission.Default)
{
return;
}
if (tp == null)
{
tp = TablePermission.CreateFromMetadata(Role, new TOM.TablePermission {
Table = table.MetadataObject
});
}
tp.MetadataPermission = permission;
}
protected override void SetValue(Table table, string filterExpression)
{
var tp = Role.TablePermissions.FindByName(table.Name);
// Filter expression removed:
if (string.IsNullOrWhiteSpace(filterExpression))
{
// Don't do anything if there is no TablePermission for this table anyway:
if (tp == null)
{
return;
}
// Otherwise, remove the filter expression:
if (Handler.CompatibilityLevel >= 1400 && (tp.MetadataObject.MetadataPermission != TOM.MetadataPermission.Default ||
tp.MetadataObject.ColumnPermissions.Any(cp => cp.MetadataPermission != TOM.MetadataPermission.Default)))
{
tp.FilterExpression = string.Empty;
}
else
{
tp.Delete();
}
}
else // Filter expression assigned:
{
// Create a new TablePermission if we don't already have one for this table:
if (tp == null)
{
tp = TablePermission.CreateFromMetadata(Role, new TOM.TablePermission {
Table = table.MetadataObject
});
}
tp.FilterExpression = filterExpression;
}
}
internal RoleColumnOLSIndexer(TablePermission tps) : base(tps)
{
TablePermission = tps;
}
