public IQuery FromAst(QueryAbstractSyntaxTree queryAst)
{
if (queryAst.SelectExpression is NodeClassReference nodeClassReference == false)
{
throw new InvalidQueryException(
$"Unsupported select expression: {queryAst.SelectExpression.GetType().FullName}.");
}
var path = new QueryPath(new NodeReference(nodeClassReference.NodeIdentifier.Name,
nodeClassReference.Alias.Name));
var query = new QueryImplementation(path);
if (queryAst.ReturnSpecification.Selector is SelectAllProperties selectAllProperties)
{
var alias = selectAllProperties.NodeTypeIdentifier.Name;
var nodeReference = query.FindNodeByAlias(alias);
if (nodeReference is null)
{
throw new InvalidQueryException(
$"Expected node with alias: {alias} to be in the selection path but it was not found. Return specification is invalid.");
}
query.AddPropertySelection(new NodeAllPropertiesSelected(nodeReference));
}
else
{
throw new InvalidQueryException($"Unsupported return specification.");
}
return(query);
}
public static WorkItemCollection GetWorkItems(this WorkItemStore store, QueryPath queryPath)
{
QueryDefinition definition = GetQueryDefinition(store, queryPath);
return GetWorkItems(store,
new Query(store, definition.QueryText, new Hashtable {{"project", queryPath.ProjectName}}),
null);
}
/// <summary>
/// Raises the QueryPath event.
/// </summary>
private void RaiseQueryPath()
{
QueryPathEventArgs e = new QueryPathEventArgs()
{
Context = this.Context
};
QueryPath?.Invoke(this, e);
if (!e.Cancel)
{
Videos.AddRange(e.TMDbDetails);
}
}
public static QueryDefinition GetQueryDefinition(this WorkItemStore store, QueryPath queryPath)
{
var queryHierarchy = store.Projects[queryPath.ProjectName].QueryHierarchy;
var foundQueryItem = queryPath.PathNames
.Aggregate<string, QueryItem>(queryHierarchy,
(queryItem, name) =>
{
var queryFolder = queryItem as QueryFolder;
if (queryFolder != null && queryFolder.Contains(name))
{
return queryFolder[name];
}
return null;
}
);
return foundQueryItem as QueryDefinition;
}