/// <summary>
/// Adds an expression to the comma-delimited list of the GROUP BY clause
/// </summary>
public void AddGroupByPart(string value)
{
if (GroupByParts == null)
{
GroupByParts = new List <string>();
}
GroupByParts.Add(value);
}
/// <summary>
/// Builds a primary select query
/// </summary>
/// <returns>Query string</returns>
private string BuildSelectQuery()
{
var sb = new StringBuilder();
if (QueryType == N1QlQueryType.Subquery)
{
if (!string.IsNullOrEmpty(PropertyExtractionPart))
{
// Subqueries will always return a list of objects
// But we need to use an ARRAY statement to convert it into an array of a particular property of that object
sb.AppendFormat("ARRAY `ArrayExtent`.{0} FOR `ArrayExtent` IN (", PropertyExtractionPart);
}
else
{
sb.Append('(');
}
}
else if (QueryType == N1QlQueryType.SubqueryAny)
{
sb.AppendFormat("ANY {0} IN (", PropertyExtractionPart);
}
else if (QueryType == N1QlQueryType.SubqueryAll)
{
sb.AppendFormat("EVERY {0} IN (", PropertyExtractionPart);
}
if (!string.IsNullOrWhiteSpace(ExplainPart))
{
sb.Append(ExplainPart);
}
if (!string.IsNullOrEmpty(AggregateFunction))
{
sb.AppendFormat("SELECT {0}({1}{2})",
AggregateFunction,
!string.IsNullOrWhiteSpace(DistinctPart) ? DistinctPart : string.Empty,
SelectPart);
}
else
{
sb.AppendFormat("SELECT {0}{1}",
!string.IsNullOrWhiteSpace(DistinctPart) ? DistinctPart : string.Empty,
SelectPart);
//TODO support multiple select parts: http://localhost:8093/tutorial/content/#5
}
if (!IsBucketSubquery && !string.IsNullOrEmpty(PropertyExtractionPart))
{
sb.AppendFormat(" as {0}", PropertyExtractionPart);
}
if (FromParts.Any())
{
var mainFrom = FromParts.First();
sb.AppendFormat(" FROM {0} as {1}",
mainFrom.Source,
mainFrom.ItemName);
if (!string.IsNullOrEmpty(UseKeysPart))
{
sb.AppendFormat(" USE KEYS {0}", UseKeysPart);
}
foreach (var joinPart in FromParts.Skip(1))
{
sb.AppendFormat(" {0} {1} as {2}",
joinPart.JoinType,
joinPart.Source,
joinPart.ItemName);
if (!string.IsNullOrEmpty(joinPart.OnKeys))
{
sb.AppendFormat(" ON KEYS {0}", joinPart.OnKeys);
}
}
}
ApplyLetParts(sb);
if (WhereParts.Any())
{
sb.AppendFormat(" WHERE {0}", String.Join(" AND ", WhereParts));
}
if ((GroupByParts != null) && GroupByParts.Any())
{
sb.AppendFormat(" GROUP BY {0}", string.Join(", ", GroupByParts));
}
if ((HavingParts != null) && HavingParts.Any())
{
sb.AppendFormat(" HAVING {0}", string.Join(" AND ", HavingParts));
}
if (OrderByParts.Any())
{
sb.AppendFormat(" ORDER BY {0}", String.Join(", ", OrderByParts));
}
if (LimitPart != null)
{
sb.Append(LimitPart);
}
if (LimitPart != null && OffsetPart != null)
{
sb.Append(OffsetPart);
}
if (QueryType == N1QlQueryType.Subquery)
{
if (!string.IsNullOrEmpty(PropertyExtractionPart))
{
sb.Append(") END");
}
else
{
sb.Append(')');
}
}
else if (QueryType == N1QlQueryType.SubqueryAny)
{
sb.Append(") SATISFIES true END");
}
else if (QueryType == N1QlQueryType.SubqueryAll)
{
sb.AppendFormat(") SATISFIES {0} END", WhereAllPart);
}
return(sb.ToString());
}
