Using Sitecore Content Search with Solr is basically
identical to that with Lucene at the general use level, with the exception of
the configuration. Solr does have some
more advanced features that Lucene does not have.
To get started though with either
all we need is a search context. We can
get this using the context item (or any item for that matter). We simply cast the item to the
SitecoreIndexableItem class and pass it into ContentSearchManager.CreatesearchContext
and that will give us our context.
This is generally set up
as:
using (var context = ContentSearchManager.CreateSearchContext((SitecoreIndexableItem)item)){
//search code….
}
using (var context = ContentSearchManager.CreateSearchContext((SitecoreIndexableItem)item)){
//search code….
}
From inside this context we can
get our search results by calling the generic method GetQueryable that takes
all types that derive from SearchResultItem on our context and using Linq to
filter our results.
An example where we get all
items under the current item:
var results = context.GetQueryable<SearchResultItem>().Where(i => i.Paths.Contains(item.ID));
var results = context.GetQueryable<SearchResultItem>().Where(i => i.Paths.Contains(item.ID));
If you have custom fields you
want to search on it is highly recommended that you create a class that derives
from SearchResultItem and add your fields as properties. What is really nice with this is that
Sitecore content search will reflect on this class and do the search on those
properties.
An example with an item
with an author field:
public class MyCustomResultItem: SearchResultItem{
public string Author { get; set; }
}
public class MyCustomResultItem: SearchResultItem{
public string Author { get; set; }
}
var results = context.GetQueryable<MyCustomResultItem>().Where(i => string.Equals(i.Author,”me”));
At this point you can iterate through results and get the
items using .GetItem() on each resulting item.
