/// <summary>
/// Add or update a metatable in the local table map
/// </summary>
/// <param name="mt"></param>
public static bool Add(
MetaTable mt)
{
mt.Name = mt.Name.Trim().ToUpper(); // normalize name
if (RestrictedMetaTables.MetatableIsRestricted(mt.Name)) // if restricted then don't add to map
{
return(false);
}
if (RestrictedMetaTables.MetatableIsGenerallyRestricted(mt.Name))
{
return(false); //if metatable is generally restricted to the user don't add to map
}
TableMap[mt.Name] = mt; // store/update in map
return(true);
}
/// <summary>
/// Lookup a MetaTable by name throwing any exceptions from underlying factories
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
///
public static MetaTable GetWithException(
String name)
{
MetaTable mt = null;
// See if in map
if (name == null || name.Trim() == "")
{
throw new Exception("Undefined metatable name");
}
name = name.Trim().ToUpper(); // normalize name
if (TableMap.ContainsKey(name))
{
mt = TableMap[name];
return(mt);
}
if (RestrictedMetaTables.MetatableIsRestricted(name))
{
mt = null;
}
if (RestrictedMetaTables.MetatableIsGenerallyRestricted(name))
{
mt = null;
}
else
{
if (MetaTableFactory == null)
{
throw new Exception("MetaTableFactory instance is not defined");
}
mt = MetaTableFactory.GetMetaTable(name);
}
if (mt == null) // table not available
{
if (Lex.Contains(name, "calcfield"))
{
name = name; // debug
}
string msg = "Unable to find data table: " + name + "\r\n\r\n" +
"The table may not exist or you may not be authorized for access.";
//DebugLog.Message(msg); // log for debugging
throw new Exception(msg); // no luck
}
mt.Name = mt.Name.Trim().ToUpper(); // normalize name
TableMap[mt.Name] = mt; // store in map
if (Lex.Ne(mt.Name, name)) // if original name was an alias then store under that alias also
{
TableMap[name] = mt;
}
return(mt);
}
