public static Query Combine(Query firstQuery, Query secondQuery)
{
return new Query
{
Where = Where.Combine(firstQuery.Where, secondQuery.Where),
OrderBy = OrderBy.Combine(firstQuery.OrderBy, secondQuery.OrderBy),
GroupBy = GroupBy.Combine(firstQuery.GroupBy, secondQuery.GroupBy)
};
}
public static SPQuery Combine(this SPQuery spQuery, Query query)
{
if (spQuery != null)
{
Query existingQuery = Query.GetFromSPQuery(spQuery);
spQuery.Query = Query.Combine(existingQuery, query).ToString(false);
}
return spQuery;
}
public static Query Parse(XElement existingQuery)
{
Query query = new Query();
if (existingQuery != null && (existingQuery.HasElements && string.Equals(existingQuery.Name.LocalName, QueryTag, StringComparison.InvariantCultureIgnoreCase)))
{
XElement existingWhere = existingQuery.Elements().SingleOrDefault(el => string.Equals(el.Name.LocalName, "Where", StringComparison.InvariantCultureIgnoreCase));
if (existingWhere != null) query.Where = new Where(existingWhere);
XElement existingOrderBy = existingQuery.Elements().SingleOrDefault(el => string.Equals(el.Name.LocalName, "OrderBy", StringComparison.InvariantCultureIgnoreCase));
if (existingOrderBy != null) query.OrderBy = new OrderBy(existingOrderBy);
XElement existingGroupBy = existingQuery.Elements().SingleOrDefault(el => string.Equals(el.Name.LocalName, "GroupBy", StringComparison.InvariantCultureIgnoreCase));
if (existingGroupBy != null) query.GroupBy = new GroupBy(existingGroupBy);
}
return query;
}