protected QueryNode ApplyRuleConditions(QueryNode node, string tableName, DalcOperation operation)
{
var resNode = new QueryGroupNode(QueryGroupNodeType.And);
resNode.Nodes.Add(node);
var context = CreatePermissionContext(tableName, operation);
for (int i = 0; i < Rules.Length; i++)
{
var r = Rules[i];
var extraCondition = r.ComposeCondition(context);
if (extraCondition != null)
{
resNode.Nodes.Add(extraCondition);
}
}
return(resNode.Nodes.Count > 1 ? resNode : node);
}
public PermissionContext(string tableName, DalcOperation operation)
{
TableName = tableName;
Principal = Thread.CurrentPrincipal;
Operation = operation;
}
public QueryRule(string tableName, DalcOperation op, string relexCondition)
{
TableName = tableName;
Operation = op;
RuleCondition = (new RelExParser()).ParseCondition(relexCondition);
}
public QueryRule(string tableName, DalcOperation op, QueryNode ruleCondition)
{
TableName = tableName;
Operation = op;
RuleCondition = ruleCondition;
}
protected virtual PermissionContext CreatePermissionContext(string tableName, DalcOperation op)
{
if (GetPermissionContext != null)
{
return(GetPermissionContext(tableName, op));
}
return(new PermissionContext(tableName, op));
}
