/// <summary>
/// Gets the differences between this set of table data and another.
/// </summary>
/// <param name="other">The other set of table data.</param>
/// <param name="tableName">Name of the table.</param>
/// <param name="scripts">A set of scripts to fill with the differences.</param>
/// <returns>True if the two sets are different; otherwise false.</returns>
private bool GetDifferences(TableData other, Name tableName, ScriptSet scripts)
{
if (Count == 0)
{
return(false);
}
if (other == null)
{
other = new TableData(Name);
}
StringBuilder addScript = new StringBuilder();
StringBuilder deleteScript = new StringBuilder();
List <TableRow> testing = new List <TableRow>(this);
//this may not be the most efficient algorithm, but we have no index
foreach (TableRow existing in other)
{
TableRow found = null;
foreach (TableRow adding in testing)
{
if (existing.Equals(adding))
{
found = adding;
break;
}
}
if (found == null)
{
if (scripts == null)
{
return(true);
}
existing.GenerateDelete(deleteScript, tableName);
}
else
{
testing.Remove(found);
}
}
foreach (TableRow adding in testing)
{
if (scripts == null)
{
return(true);
}
adding.GenerateInsert(addScript, tableName);
}
if (addScript.Length > 0)
{
scripts.Add(new Script(addScript.ToString(), tableName.Unescaped + "Data", ScriptType.TableData));
}
if (deleteScript.Length > 0)
{
scripts.Add(new Script(deleteScript.ToString(), tableName + "Data", ScriptType.TableRemoveData));
}
return(scripts != null && scripts.Count > 0);
}
/// <summary>
/// Is this set of table data the same as another?
/// </summary>
/// <param name="other">The other set of table data.</param>
/// <returns></returns>
public bool AreEqual(TableData other)
{
return(!GetDifferences(other, null, null));
}
