Recently I have been working on a large Content Management solution that required 300+ custom Managed/Metadata Properties in MOSS Search and had requirements to allow user to search on all of the Metadata Properties. MOSS Search Index was also used to run a number of reports such as “What Asset (Image, Video, Document etc) is used on what page?”
While working with MOSS Search I came across a number of things that I think are worth sharing.
Programmatically setting up Shared Scope
APIs to work with MOSS Search related Administration tasks such as creating Scopes, Managed Properties etc are very straight forward and well documented under Getting Started with the Enterprise Search Administration Object Model
But if you want to set up a shared scope, then it’s not very obvious from API how to do it. ScopeCollection.Create method as shown below takes owningSiteUrl as a parameter and to set up a shared scope just pass in null for owningSiteUrl and the scope will be created as a Shared Scope!
public Scope Create (string name,string description, Uri owningSiteUrl, bool displayInAdminUI,string alternateResultsPage,ScopeCompilationType compilationType)
Programmatically setting up “Include values from a single crawled property based on order specified”
Programmatically setting up mappings to crawled properties is straight forward, if you want to add multiple crawled properties and include value only from a single crawled property based on the order than from the UI, you can simply check the radio button next “Include values from a single crawled property based on order specified”.
To do it programmatically add multiple Crawled properties to MappingCollection and then set ManagedProperty.RespectPriority property to true, here is some code (pseudo code really!) to add multiple crawled property mappings
Schema propertiesSchema = new Schema(SearchContext.Current);
ManagedPropertyCollection managedProperties = propertiesSchema.AllManagedProperties;
ManagedProperty managedProperty = managedProperties["Test Property"];
MappingCollection mappingCollection = managedProperty.GetMappings();//Create Crawled Property Mappings
Mapping propMapping = new Mapping(new Guid("00130329-0000-0130-c000-000000131346"), "ows_Modified_x0020_By", "31",managedProperty.PID);
Mapping propMapping1 = new Mapping(new Guid("b725f130-47ef-101a-a5f1-02608c9eebac"), "11","31",managedProperty.PID);//Add in the order in which you want it to appear in the Admin UI
managedProperty.SetMappings(mappingCollection); // You have to do this for Mappings to work
//Tell it to respect priority!
managedProperty.RespectPriority = true;
It takes a Guid (crawledPropset) which is the category of crawled property (SharePoint, People, etc) and also takes an int (crawledPropertyVariantType) which represents the DataType of crawled property, I find it annoying that list of possible values crawledPropset and crawledPropertyVariantType is not very handy so here are the possible values
Some Possible Values of crawledPropertyVariantType
|Something to do with Custom field
*Please note that above values are what I have encountered till now *
Commonly Used crawledPropset