Database Reference
In-Depth Information
Listing 7-38.
The
MappedContentTag
public class MappedContentTag
{
public string id {get; set;}
public string label {get; set;}
public string name {get; set;}
}
Filtering Managed Content
Once the list of tags for the user and for the group that she follows has been provided, the content can be filtered
based of the generated tag links, which is shown in Figure
7-8
. If a tag is clicked on the inside of the “My Interests”
section, then the
getContentByTag
method, displayed in Listing 7-39, will called be with the
isCurrentUser
value set
to true.
Listing 7-39.
getContentByTag
in
ContentService
public List<MappedContent> getContentByTag(string username, string tag, bool isCurrentUser)
{
List<MappedContent> mappedContent = null;
if (isCurrentUser == true)
{
mappedContent = _graphClient.Cypher.Match(" (u:User {username: {u} }) ")
.WithParam("u", username)
.With("u")
.Match(" u-[:CURRENTPOST]-lp-[:NEXTPOST*0..]-p ")
.With(" DISTINCT u,p ")
.Match(" p-[:HAS]-(t:Tag {wordPhrase : {wp} } )")
.WithParam("wp",tag)
.Return(() => Return.As<MappedContent>(" { contentId: p.contentId, title: p.title,
url: p.url," +
" tagstr: p.tagstr, timestamp: p.timestamp, userNameForPost: u.username, owner:
true } "))
.OrderByDescending("p.timestamp")
.Results.ToList();
}
else
{
mappedContent = _graphClient.Cypher.Match(" (u:User {username: {u} }) ")
.WithParam("u", username)
.With("u")
.Match(" (u)-[:FOLLOWS]->f ")
.With(" DISTINCT f ")
.Match(" f-[:CURRENTPOST]-lp-[:NEXTPOST*0..]-p ")
.With(" DISTINCT f,p ")
.Match(" p-[:HAS]-(t:Tag {wordPhrase : {wp} } )")
.WithParam("wp", tag)
.Return(() => Return.As<MappedContent>(" { contentId: p.contentId, title: p.title,
url: p.url, " +
