public static WorkItemLinkInfo [] QueryLinks(
this TfsTeamProjectCollection tpc,
Expression <Predicate <WorkItem> > sourcePredicate,
Expression <Predicate <WorkItem> > targetPredicate,
string linkType,
QueryLinkMode mode
)
{
var qb = new QueryBuilder(QueryType.Link);
var sourceLambda = sourcePredicate as LambdaExpression;
var targetLambda = targetPredicate as LambdaExpression;
var whereSourceTranslator = new WhereClauseTranslator(new WorkItemHelper(), "Source");
var sourceFilter = whereSourceTranslator.Translate(sourceLambda.Body, qb, sourceLambda.Parameters[0].Name);
if (!string.IsNullOrEmpty(sourceFilter))
{
qb.AddWhereClause(sourceFilter);
}
var whereTargetTranslator = new WhereClauseTranslator(new WorkItemHelper(), "Target");
var targetFilter = whereTargetTranslator.Translate(sourceLambda.Body, qb, targetLambda.Parameters[0].Name);
if (!string.IsNullOrEmpty(targetFilter))
{
qb.AddWhereClause(targetFilter);
}
qb.AddQueryLinkMode(mode);
var q = qb.BuildQuery(tpc, null, null);
return(q.GetLinks());
}
/// <summary>
/// Processes the where clause.
/// </summary>
/// <param name="lambda">The lambda.</param>
private void ProcessWhereClause(LambdaExpression lambda)
{
if (lambda.Parameters.Count == 0)
{
throw new InvalidOperationException("invalid where clase");
}
if ((lambda.Parameters.Count != 1) ||
(!IsAWorkItem(lambda.Parameters[0].Type)))
{
throw new InvalidOperationException("invalid where clase");
}
var whereTranslator = new WhereClauseTranslator(_resolver,null);
var whereClause = whereTranslator.Translate(lambda.Body, _builder,lambda.Parameters[0].Name);
_builder.AddWhereClause(whereClause);
}