/// <summary>
/// During page load, we use lucene search API to get a list of publishers. This information comes from the cache for performance.
/// That information is bound to the search dropdown.
/// Also, rebinds the freetext search to the search box.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
if (NWTD.Profile.CurrentUserLevel.Equals(NWTD.UserLevel.ANONYMOUS))
{
this.pnlSearchByPublisher.Visible = false; return;
}
NWTD.Web.UI.ClientScript.AddRequiredScripts(this.Page);
Page.ClientScript.RegisterClientScriptInclude(this.Page.GetType(), "Search_js", CommerceHelper.GetAbsolutePath("Structure/User/NWTDControls/Scripts/Search.js"));
this.btnSubmitSearch.Text = this.ButtonText;
//it would be weird to show the facet if it's already there
//if (!CMSContext.Current.CurrentUrl.Contains("/catalog/searchresults.aspx")) {
this.ddlPublisher.Visible = true;
//The key used for retrieving cache data
string cacheKey = Mediachase.Commerce.Catalog.CatalogCache.CreateCacheKey("search-publisher-names");
FacetGroup publisherfacet;
// check cache first
object cachedObject = Mediachase.Commerce.Catalog.CatalogCache.Get(cacheKey);
if (cachedObject != null)
{
publisherfacet = (FacetGroup)cachedObject;
}
else
{
//So far, this seems like the best way to ennumerate the existing Publishers
//Although, it does seem kind of convoluted.
//Anyway, get the list using search and then cache it
Mediachase.Search.Extensions.CatalogEntrySearchCriteria criteria = new Mediachase.Search.Extensions.CatalogEntrySearchCriteria();
if (!string.IsNullOrEmpty(global::NWTD.Catalog.UserStateAvailablityField))
{
//Incorporate the state availablity flag
criteria.Add(
global::NWTD.Catalog.UserStateAvailablityField,
new SimpleValue()
{
key = string.Empty,
value = "y",
locale = "en-us",
Descriptions = new Descriptions()
{
defaultLocale = "en-us"
}
});
}
//Create a search criteria object
criteria.Add(SearchFilterHelper.Current.SearchConfig.SearchFilters.SingleOrDefault(filter => filter.field == "Publisher"));
var manager = new SearchManager(Mediachase.Commerce.Core.AppContext.Current.ApplicationName);
//conduct the search
Mediachase.Search.SearchResults results = manager.Search(criteria);
//get the results
FacetGroup[] facets = results.FacetGroups;
//get the publisher field
publisherfacet = facets.SingleOrDefault(facet => facet.FieldName == "Publisher");
//cache the results for five minutes for faster future loads
TimeSpan cacheTimeout = new TimeSpan(0, 5, 00);
Mediachase.Commerce.Catalog.CatalogCache.Insert(cacheKey, publisherfacet, cacheTimeout);
}
//Bind the publisehrs to the dropdown
this.ddlPublisher.DataSource = publisherfacet.Facets;
this.ddlPublisher.DataBind();
//Add an empty item for searching all publishers
this.ddlPublisher.Items.Insert(0, new ListItem("All Publishers"));
//select the currently selected publisehr
foreach (ListItem item in ddlPublisher.Items)
{
if (item.Value == this.SelectedPublisher)
{
item.Selected = true;
}
}
//Re-do the keyword in the textbox as well
this.tbKeyWord.Text = string.IsNullOrEmpty(this.KeyWords) ?this.DefaultSearchText : this.KeyWords;
//this.ddlPublisher.SelectedValue = this.Publisher;
}
/// <summary>
/// Searches the specified criteria.
/// </summary>
/// <param name="criteria">The criteria.</param>
/// <returns></returns>
public SearchResults Search(ISearchCriteria criteria)
{
if (_SearchList == null || _SearchList.Count == 0)
{
foreach (IndexerDefinition indexer in SearchConfiguration.Instance.Indexers)
{
try
{
_SearchList.Add(indexer.Name, new IndexSearcher(GetApplicationPath(indexer)));
}
catch (FileNotFoundException ex)
{
string msg = String.Format("No search indexers found for \"{0}\" indexer.", indexer.Name);
IndexNotFoundException ne = new IndexNotFoundException(msg, ex);
Logger.Error(msg, ne);
throw ne;
}
}
}
if (_SearchList.Count == 0)
{
string msg = String.Format("No Search Indexers defined in the configuration file.");
Logger.Error(msg);
throw new IndexNotFoundException(msg);
}
if (!_SearchList.ContainsKey(criteria.Scope))
{
string msg = String.Format("Specified scope \"{0}\" not declared in the configuration file.", criteria.Scope);
Logger.Error(msg);
throw new IndexNotFoundException(msg);
}
IndexSearcher searcher = _SearchList[criteria.Scope];
if (_SearchList.Count == 0)
{
string msg = String.Format("No Search Indexers defined in the configuration file.");
Logger.Error(msg);
throw new IndexNotFoundException(msg);
}
Hits hits = null;
try
{
if (criteria.Sort != null)
{
SearchSortField[] fields = criteria.Sort.GetSort();
List <SortField> sortFields = new List <SortField>();
foreach (SearchSortField field in fields)
{
sortFields.Add(new SortField(field.FieldName, field.IsDescending));
}
hits = searcher.Search(criteria.Query, new Sort(sortFields.ToArray()));
}
else
{
hits = searcher.Search(criteria.Query);
}
}
catch (SystemException ex)
{
string msg = String.Format("Search failed.");
Logger.Error(msg, ex);
throw;
}
SearchResults results = new SearchResults(searcher.Reader, hits, criteria);
return(results);
}