/// <summary>
/// Parses a data record into a <see cref="DatabaseIndexColumn" /> instance.
/// </summary>
private DomainTableIndexColumn ParseIndexColumn(DomainTableIndex index, IDataRecord record)
{
DomainTableIndexColumn indexColumn = index.CreateColumn();
indexColumn.ReferencedColumn = index.Table.TableColumns.FirstOrDefault(column => column.ColumnName == record["name"].ConvertTo <String>());
return(indexColumn);
}
/// <summary>
/// Creates a new database index within the table.
/// </summary>
public DomainTableIndex CreateIndex()
{
DomainTableIndex index = new DomainTableIndex(this);
_tableIndexes.Add(index);
return(index);
}
/// <summary>
/// Deserialises the version history from the specified xml element.
/// </summary>
internal static void Deserialise(DomainTableIndex index, XmlNode parentNode)
{
foreach (XmlNode xmlNode in parentNode.SelectNodes("column"))
{
DomainTableIndexColumn result = index.CreateColumn();
result.Deserialise(xmlNode);
}
}
/// <summary>
/// Deserialises the version history from the specified xml element.
/// </summary>
internal static void Deserialise(DomainTable table, XmlNode parentNode)
{
foreach (XmlNode xmlNode in parentNode.SelectNodes("index"))
{
DomainTableIndex result = table.CreateIndex();
result.Deserialise(xmlNode);
DomainTableIndexColumn.Deserialise(result, xmlNode);
}
}
/// <summary>
/// Deserialises the version history from the specified xml element.
/// </summary>
internal static void Deserialise(Domain domain, XmlNode parentNode)
{
foreach (XmlNode xmlNode in parentNode.SelectNodes("table"))
{
DomainTable result = domain.CreateTable();
result.Deserialise(xmlNode);
DomainTableColumn.Deserialise(result, xmlNode);
DomainTableIndex.Deserialise(result, xmlNode);
DomainTableConstraint.Deserialise(result, xmlNode);
}
}
/// <summary>
/// Parses a data record into a <see cref="DatabaseIndex" /> instance.
/// </summary>
private DomainTableIndex ParseIndex(DomainTable table, IDataRecord record)
{
DomainTableIndex index = table.CreateIndex();
index.IndexName = record["index_name"].ConvertTo <String>();
index.IndexIsUnique = record["index_unique"].ConvertTo <Boolean>();
// Import the column information
this.Execute(rec2 => this.ParseIndexColumn(index, rec2), @"
select columns.name
from sys.schemas
join sys.objects on objects.schema_id = schemas.schema_id
join sys.columns on columns.object_id = objects.object_id
join sys.indexes on indexes.object_id = objects.object_id
join sys.index_columns on index_columns.object_id = objects.object_id and index_columns.index_id = indexes.index_id and index_columns.column_id = columns.column_id
where schemas.name = 'dbo' and objects.type = 'u' and objects.name = @param1 and indexes.index_id = @param2
order by indexes.type, indexes.index_id", table.TableName, record["index_id"]).ToArray();
return(index);
}
/// <summary>
/// Initialises a new <see cref="DomainTableIndexColumn" /> instance.
/// </summary>
public DomainTableIndexColumn(DomainTableIndex index) : base(index.Version)
{
_index = index;
}
/// <summary>
/// Initialises a new <see cref="IndexEditor" /> instance.
/// </summary>
public IndexEditor(DomainTableIndex domainTableIndex)
{
this.InitializeComponent();
this.DomainTableIndex = domainTableIndex;
}
