public override SqlInfo[] ConvertToSql(Expression?expression, int level, ConvertFlags flags)
{
if (expression == null)
{
throw new ArgumentNullException(nameof(expression));
}
if (expression.GetLevelExpression(Builder.MappingSchema, level) is ContextRefExpression refExpression && refExpression.BuildContext == this)
{
++level;
}
return(SubQuery
.ConvertToIndex(expression, level, flags)
.Select(info =>
{
var expr = (info.Sql is SqlColumn column) ? column.Expression : info.Sql;
var field = RegisterSourceField(expr, expr, info.Index, info.MemberChain.LastOrDefault());
return new SqlInfo(info.MemberChain)
{
Sql = field
};
})
.ToArray());
}
public override SqlInfo[] ConvertToSql(Expression expression, int level, ConvertFlags flags)
{
return(SubQuery
.ConvertToIndex(expression, level, flags)
.Select(idx => new SqlInfo((idx.Members))
{
Sql = SubQuery.SelectQuery.Select.Columns[idx.Index]
})
.ToArray());
}
public override SqlInfo[] ConvertToSql(Expression?expression, int level, ConvertFlags flags)
{
expression = SequenceHelper.CorrectExpression(expression, this, Context);
var indexes = SubQuery
.ConvertToIndex(expression, level, flags)
.ToArray();
var result = indexes
.Select(idx => new SqlInfo(idx.MemberChain, idx.Index < 0 ? idx.Sql : SubQuery.SelectQuery.Select.Columns[idx.Index], idx.Index))
.ToArray();
return(result);
}
public override SqlInfo[] ConvertToSql(Expression?expression, int level, ConvertFlags flags)
{
expression = SequenceHelper.CorrectExpression(expression, this, SubQuery);
return(SubQuery
.ConvertToIndex(expression, level, flags)
.Select(info =>
{
var expr = (info.Sql is SqlColumn column) ? column.Expression : info.Sql;
var field = RegisterSourceField(expr, expr, info.Index, info.MemberChain.LastOrDefault());
return new SqlInfo(info.MemberChain, field);
})
.ToArray());
}
