/// <summary>
/// Gets a CSS class name for the tag based on the <see cref="TagSummary.Count"/> - the number of
/// pages with that tag in the system.
/// </summary>
/// <param name="helper">The helper.</param>
/// <param name="tag">A <see cref="TagSummary"/>.</param>
/// <returns>
/// <list type="bullet">
/// <item>1 tag: "tagcloud1"</item>
/// <item>1-3 tags: "tagcloud2"</item>
/// <item>3-5 tags: "tagcloud3"</item>
/// <item>5-10 tags: "tagcloud4"</item>
/// <item>10+ tags: "tagcloud5"</item>
/// </list>
/// </returns>
public static string ClassNameForTagSummary(this HtmlHelper helper, TagSummary tag)
{
string className = "";
if (tag.Count > 10)
{
className = "tagcloud5";
}
else if (tag.Count >= 5 && tag.Count < 10)
{
className = "tagcloud4";
}
else if (tag.Count >= 3 && tag.Count < 5)
{
className = "tagcloud3";
}
else if (tag.Count > 1 && tag.Count < 3)
{
className = "tagcloud2";
}
else if (tag.Count == 1)
{
className = "tagcloud1";
}
return className;
}
/// <summary>
/// Retrieves a list of all tags in the system.
/// </summary>
/// <returns>A <see cref="IEnumerable`TagSummary`"/> for the tags.</returns>
/// <exception cref="DatabaseException">An NHibernate (database) error occurred while getting the tags.</exception>
public IEnumerable<TagSummary> AllTags()
{
try
{
var tagList = from p in Pages select new { Tag = p.Tags };
List<TagSummary> tags = new List<TagSummary>();
foreach (var item in tagList)
{
string[] parts = item.Tag.Split(';');
foreach (string part in parts)
{
if (!string.IsNullOrEmpty(part))
{
string tagName = part.ToLower();
TagSummary summary = new TagSummary(tagName);
int index = tags.IndexOf(summary);
if (index < 0)
{
tags.Add(summary);
}
else
{
tags[index].Count++;
}
}
}
}
return tags;
}
catch (HibernateException ex)
{
throw new DatabaseException(ex, "An error occurred while retrieving all tags from the database");
}
}
