Tridion 2009 SP1经纪人没有返回结果

Question

基于一个相当简单的查询,我在Broker加载动态组件演示时遇到了问题,如下所示,我试图根据被特定关键字标记来加载Component:

    private string GetComponentPresentations()
    {
        Logger.Log.Info("Entered GetComponentPresentations");
        var publicationCriteria = new PublicationCriteria(_publicationId);

        int schemaId = int.Parse(SchemaId.Split('-')[1]);

        // Is it the correct content type (Schema)
        var isSpecifedSchema = new ItemSchemaCriteria(schemaId);

        // Type of the item is 16 (Component).
        var isComponent = new ItemTypeCriteria(16);

        // All of the above conditions must be true
        Criteria isCorrectComponent = CriteriaFactory.And(isSpecifedSchema, isComponent);

        var publicationAndIsComponent = CriteriaFactory.And(publicationCriteria, isCorrectComponent);

        //Only get components tagged with the specified keyword
        var keywordCriteria = new KeywordCriteria(_productsCategoryTcmId, ProductFilter, Criteria.Equal);

        //Only get Components of the correct type from the correct publication
        Criteria fullCriteria = CriteriaFactory.And(publicationAndIsComponent, keywordCriteria);


        using (var query = new Query(fullCriteria))
        {
            string[] results = query.ExecuteQuery();
            using (var cpf = new ComponentPresentationFactory(_publicationId))
            {
                if(results != null)
                {
                    var resultString = new StringBuilder();

                    foreach (string componentTcmId in results)
                    {
                        Logger.Log.Info("Looping over results");

                        int componentId = int.Parse(componentTcmId.Split('-')[1]);

                        int templateId = int.Parse(TemplateId.Split('-')[1]);

                        ComponentPresentation cp = cpf.GetComponentPresentation(componentId, templateId);

                        if (cp != null && !string.IsNullOrEmpty(cp.Content))
                        {
                            resultString.Append(cp.Content);
                            Logger.Log.InfoFormat("Appended Content {0}",cp.Content);
                        }
                    }

                    Logger.Log.Info("Returning");
                    return resultString.ToString();
                }

                Logger.Log.Info("Results was null.");
                return string.Empty;
            }
        }

    }

我可以在Broker数据库的ITEMS_CATEGORIES_AND_KEYWORDS表中看到带有关键字I expect的项目,如果我注释掉查询并对TCM ID进行硬编码,我可以手动加载CP.

我确保发布了类别并且所有变量的值都是正确的.

我确保关键字的值和键设置为适当的值.

我还能检查什么？

Answer 1

我已经设法使用以下代码使其工作：

    private string GetComponentPresentationsUsingFilter()
    {
        //RSL: Had to use the obsolete filtering API because could not get anything back from the Broker.
        var filter = new SearchFilter("tcm:0-" + _publicationId + "-1");
        var query = new Query();

        string schemaId = SchemaId.Split('-')[1];
        query.AddCriteria("schema", "=", schemaId);
        query.AddCustomMetaQuery(string.Format("KEY_NAME = 'product' AND CAST(KEY_STRING_VALUE as nvarchar(100))  = '{0}'", ProductFilter));
        string[] results = filter.Match(query, new Sorting("title=asc"), MaxItems);

        if (results == null)
        {
            Logger.Log.Info("Results was null.");
            return string.Empty;
        }

        using (var cpf = new ComponentPresentationFactory(_publicationId))
        {
            var resultString = new StringBuilder();
            Logger.Log.InfoFormat("Got {0} Results", results.Length);

            foreach (string componentTcmId in results)
            {

                int componentId = int.Parse(componentTcmId.Split('-')[1]);
                Logger.Log.InfoFormat("Got componentId as {0}", componentId);

                int templateId = int.Parse(TemplateId.Split('-')[1]);
                Logger.Log.InfoFormat("Got templateId as {0}", templateId);

                ComponentPresentation cp = cpf.GetComponentPresentation(componentId, templateId);

                if (cp != null && !string.IsNullOrEmpty(cp.Content))
                {
                    resultString.Append(cp.Content);
                    Logger.Log.InfoFormat("Appended Content {0}", cp.Content);
                }
            }

            return resultString.ToString();
        }
    }

不知道为什么我可以通过这种方式得到结果，但使用 Criteria api 却没有得到任何结果？