public IEnumerable <T> ExecuteCollection <T>(QueryModel queryModel)
{
var visitor = new RethinkDbQueryModelVisitor(table);
visitor.VisitQueryModel(queryModel);
var query = visitor.Query;
ProcessQuery(query);
if (typeof(T).GetTypeInfo().IsGenericType&& typeof(T).GetGenericTypeDefinition() == typeof(IGrouping <,>))
{
return(typeof(RethinkQueryExecutor)
.GetMethod(nameof(DeserializeGrouping),
BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.DeclaredOnly)
.MakeGenericMethod(
typeof(T).GetGenericArguments()[0],
typeof(T).GetGenericArguments()[1])
.Invoke(null, new object[]
{
query.Run(connection) as JArray
}) as IEnumerable <T>);
}
if (query is Get)
{
return(new List <T>
{
query.RunResult <T>(connection)
});
}
return(query.RunResult <List <T> >(connection));
}
public T ExecuteSingle <T>(QueryModel queryModel, bool returnDefaultWhenEmpty)
{
var visitor = new RethinkDbQueryModelVisitor(table);
visitor.VisitQueryModel(queryModel);
var query = visitor.Query;
ProcessQuery(query);
try
{
return(query.RunResult <T>(connection));
}
catch (ReqlNonExistenceError ex)
{
if (ShouldReturnDefault(queryModel))
{
return(default(T));
}
throw new InvalidOperationException(ex.Message);
}
}
public T ExecuteScalar <T>(QueryModel queryModel)
{
var visitor = new RethinkDbQueryModelVisitor(table);
visitor.VisitQueryModel(queryModel);
var query = visitor.Query;
ProcessQuery(query);
var result = query.Run(connection);
if (queryModel.ResultOperators.FirstOrDefault() is AnyResultOperator)
{
return(result > 0);
}
if (queryModel.ResultOperators.FirstOrDefault() is AllResultOperator)
{
return(result == 0);
}
return((T)result);
}
