public void AddAttachedColumn(OracleSelectListColumn column)
{
CheckIfFrozen();
_columns.Add(column);
_attachedColumns.Add(column);
}
public OracleSelectListColumn AsImplicit(OracleSelectListColumn asteriskColumn)
{
return
(new OracleSelectListColumn(SemanticModel, asteriskColumn)
{
AliasNode = AliasNode,
RootNode = RootNode,
ExplicitNormalizedName = ExplicitNormalizedName,
IsDirectReference = true,
_columnDescription = ColumnDescription,
_normalizedName = _normalizedName
});
}
private IEnumerable<OracleSelectListColumn> ResolvePivotColumns()
{
var columnDefinitions = PivotClause[NonTerminals.PivotInClause, NonTerminals.PivotExpressionsOrAnyListOrNestedQuery, NonTerminals.AliasedExpressionListOrAliasedGroupingExpressionList];
if (columnDefinitions == null)
{
yield break;
}
var columnSources = columnDefinitions.GetDescendants(NonTerminals.AliasedExpression, NonTerminals.ParenthesisEnclosedExpressionListWithMandatoryExpressions).ToArray();
foreach (var nameExtension in _columnNameExtensions)
{
foreach (var columnSource in columnSources)
{
var aliasSourceNode = String.Equals(columnSource.Id, NonTerminals.AliasedExpression)
? columnSource
: columnSource.ParentNode;
var columnAlias = aliasSourceNode[NonTerminals.ColumnAsAlias, Terminals.ColumnAlias];
var columnName = columnAlias == null
? OracleSelectListColumn.BuildNonAliasedColumnName(aliasSourceNode.Terminals)
: columnAlias.Token.Value.ToQuotedIdentifier();
if (!String.IsNullOrEmpty(columnName))
{
columnName = columnName.Insert(columnName.Length - 1, nameExtension);
}
yield return
new OracleSelectListColumn(SourceReferenceContainer.SemanticModel, null)
{
RootNode = aliasSourceNode,
AliasNode = columnAlias,
Owner = Owner,
ColumnDescription =
new OracleColumn
{
Name = columnName,
DataType = OracleDataType.Empty,
Nullable = true
}
};
}
}
}
public void AddSelectListColumn(OracleSelectListColumn column, int?index = null)
{
if (_attachedColumns.Count > 0)
{
throw new InvalidOperationException("Query block has attached columns associated. ");
}
CheckIfFrozen();
if (index.HasValue)
{
_columns.Insert(index.Value, column);
}
else
{
_columns.Add(column);
}
if (column.IsAsterisk)
{
_asteriskColumns.Add(column);
}
}
public OracleSelectListColumn(OracleStatementSemanticModel semanticModel, OracleSelectListColumn asteriskColumn)
: base(semanticModel)
{
AsteriskColumn = asteriskColumn;
}
public int IndexOf(OracleSelectListColumn column) => _columns.IndexOf(column);
public OracleSelectListColumn AsImplicit(OracleSelectListColumn asteriskColumn)
{
return
new OracleSelectListColumn(SemanticModel, asteriskColumn)
{
AliasNode = AliasNode,
RootNode = RootNode,
ExplicitNormalizedName = ExplicitNormalizedName,
IsDirectReference = true,
_columnDescription = ColumnDescription,
_normalizedName = _normalizedName
};
}
public OracleSelectListColumn(OracleStatementSemanticModel semanticModel, OracleSelectListColumn asteriskColumn)
: base(semanticModel)
{
AsteriskColumn = asteriskColumn;
}
public int IndexOf(OracleSelectListColumn column)
{
return _columns.IndexOf(column);
}
private string GetUnnestedColumnExpression(OracleColumnReference sourceColumnReference, OracleSelectListColumn column)
{
if (column.HasExplicitDefinition)
{
var isNonAliasedDirectReference = sourceColumnReference.SelectListColumn?.IsDirectReference == true && !sourceColumnReference.SelectListColumn.HasExplicitAlias;
var rootExpressionNode = column.RootNode.GetDescendantsWithinSameQueryBlock(isNonAliasedDirectReference ? NonTerminals.AliasedExpression : NonTerminals.Expression).First();
var columnExpression = rootExpressionNode.GetText(ExecutionContext.StatementText);
var offset = column.RootNode.SourcePosition.IndexStart;
foreach (var columnReference in column.ColumnReferences
.Where(c => c.ColumnNodeObjectReferences.Count == 1 && c.ObjectNode == null)
.OrderByDescending(c => c.ColumnNode.SourcePosition.IndexStart))
{
var prefix = columnReference.ColumnNodeObjectReferences.First().FullyQualifiedObjectName.ToString();
if (!String.IsNullOrEmpty(prefix))
{
prefix = $"{prefix}.";
}
columnExpression = columnExpression.Remove(columnReference.ColumnNode.SourcePosition.IndexStart - offset, columnReference.ColumnNode.SourcePosition.Length).Insert(columnReference.ColumnNode.SourcePosition.IndexStart - offset, prefix + columnReference.Name);
}
return columnExpression;
}
var objectName = column.ColumnReferences.Count == 1 && column.ColumnReferences[0].ColumnNodeObjectReferences.Count == 1
? $"{column.ColumnReferences[0].ColumnNodeObjectReferences.First().FullyQualifiedObjectName}."
: null;
return $"{objectName}{column.NormalizedName.ToSimpleIdentifier()}";
}
public void AddSelectListColumn(OracleSelectListColumn column, int? index = null)
{
if (_attachedColumns.Count > 0)
{
throw new InvalidOperationException("Query block has attached columns associated. ");
}
CheckIfFrozen();
if (index.HasValue)
{
_columns.Insert(index.Value, column);
}
else
{
_columns.Add(column);
}
if (column.IsAsterisk)
{
_asteriskColumns.Add(column);
}
}
public void AddAttachedColumn(OracleSelectListColumn column)
{
CheckIfFrozen();
_columns.Add(column);
_attachedColumns.Add(column);
}
private static IEnumerable<TerminalUsage> GetParentQueryBlockUsages(OracleSelectListColumn selectListColumn)
{
var usages = Enumerable.Empty<TerminalUsage>();
if (selectListColumn == null)
{
return usages;
}
var aliasNode = selectListColumn.ExplicitAliasNode ?? selectListColumn.AliasNode;
if (aliasNode == null)
{
return usages;
}
var parentQueryBlocks = selectListColumn.Owner.SemanticModel.QueryBlocks
.Where(qb => qb.ObjectReferences.SelectMany(o => o.IncludeInnerReferences).SelectMany(o => o.QueryBlocks).Contains(selectListColumn.Owner));
foreach (var parentQueryBlock in parentQueryBlocks)
{
var parentReferences = parentQueryBlock.AllColumnReferences
.Where(c => c.ColumnNodeColumnReferences.Count == 1 && c.ColumnNodeObjectReferences.Count == 1 &&
MatchesOwnerQueryBlock(c.ColumnNodeObjectReferences.First(), selectListColumn.Owner) &&
String.Equals(c.NormalizedName, selectListColumn.NormalizedName))
.ToArray();
if (parentReferences.Length == 0)
{
continue;
}
usages = parentReferences.Select(c => new TerminalUsage { Terminal = c.ColumnNode, Option = DisplayOptions.Usage });
if (parentQueryBlock.ExplicitColumnNameList != null)
{
continue;
}
var parentColumnReferences = parentReferences.Where(c => c.SelectListColumn != null && c.SelectListColumn.IsDirectReference).ToArray();
if (parentColumnReferences.Length == 1)
{
var parentColumnReference = parentColumnReferences[0];
usages = usages
.Concat(parentColumnReferences.Where(c => c.SelectListColumn.HasExplicitAlias).Select(c => new TerminalUsage { Terminal = c.SelectListColumn.AliasNode, Option = DisplayOptions.Definition }))
.Concat(GetParentQueryBlockUsages(parentColumnReference.SelectListColumn));
}
}
return usages;
}
internal static IEnumerable<StatementGrammarNode> GetParentQueryBlockColumnUsages(OracleSelectListColumn selectListColumn)
{
return GetParentQueryBlockUsages(selectListColumn).Select(u => u.Terminal);
}
public int IndexOf(OracleSelectListColumn column)
{
return(_columns.IndexOf(column));
}
