/// <inheritdoc/>
protected override ISqlNode OnChildNode(ISqlNode node)
{
if (node.NodeName == "from_source") {
Source = (IFromSourceNode) node.ChildNodes.FirstOrDefault();
} else if (node.NodeName == "join_opt") {
Join = (JoinNode) node.ChildNodes.FirstOrDefault();
}
return base.OnChildNode(node);
}
private static void AddSourceToClause(FromClause clause, IFromSourceNode source)
{
string alias = null;
if (source.Alias != null)
alias = source.Alias.Text;
if (source is FromTableSourceNode) {
var tableSource = (FromTableSourceNode)source;
clause.AddTable(alias, tableSource.TableName.Name);
} else if (source is FromQuerySourceNode) {
var querySource = (FromQuerySourceNode)source;
var queryExpression = (SqlQueryExpression) Build(querySource.Query);
clause.AddSubQuery(alias, queryExpression);
}
}
private static void AddSourceToClause(FromClause clause, IFromSourceNode source)
{
string alias = null;
if (source.Alias != null)
{
alias = source.Alias.Text;
}
if (source is FromTableSourceNode)
{
var tableSource = (FromTableSourceNode)source;
clause.AddTable(alias, tableSource.TableName.Name);
}
else if (source is FromQuerySourceNode)
{
var querySource = (FromQuerySourceNode)source;
var queryExpression = (SqlQueryExpression)Build(querySource.Query);
clause.AddSubQuery(alias, queryExpression);
}
}
private static void SetFromTableInClause(FromClause clause, IFromSourceNode source, JoinNode join)
{
AddSourceToClause(clause, source);
if (join != null)
{
var joinType = JoinType.Inner;
if (!String.IsNullOrEmpty(join.JoinType))
{
joinType = GetJoinType(join.JoinType);
}
SqlExpression onExpression = null;
if (join.OnExpression != null)
{
onExpression = Build(join.OnExpression);
}
clause.Join(joinType, onExpression);
SetFromTableInClause(clause, join.Source, join.NextJoin);
}
}
/// <inheritdoc/>
protected override ISqlNode OnChildNode(ISqlNode node)
{
if (node.NodeName == "join_type") {
GetJoinType(node);
} else if (node is IFromSourceNode) {
Source = (IFromSourceNode) node;
} else if (node.NodeName == "from_source") {
Source = (IFromSourceNode) node.ChildNodes.FirstOrDefault();
} else if (node.NodeName == "on_opt") {
OnExpression = node.FindNode<IExpressionNode>();
} else if (node.NodeName == "join_opt") {
var join = node.ChildNodes.FirstOrDefault();
if (join != null)
NextJoin = (JoinNode) join;
}
return base.OnChildNode(node);
}
private void SetFromTableInClause(FromClause clause, IFromSourceNode source, JoinNode join)
{
AddSourceToClause(clause, source);
if (join != null) {
var joinType = JoinType.Inner;
if (!String.IsNullOrEmpty(join.JoinType))
joinType = GetJoinType(join.JoinType);
SqlExpression onExpression = null;
if (join.OnExpression != null)
onExpression = Build(join.OnExpression);
clause.Join(joinType, onExpression);
SetFromTableInClause(clause, join.Source, join.NextJoin);
}
}
