/// <summary>
/// Registers a template of type RazorTemplateBase to compile.
/// </summary>
/// <typeparam name="T">Type of RazorTemplateBase.</typeparam>
/// <param name="templateID">The template's unique identifier.</param>
/// <param name="templateString">The template string to compile.</param>
/// <param name="namespaces">The namespaces to add to the template.</param>
public void RegisterTemplate <T>(string templateID, string templateString, IEnumerable <string> namespaces, DateTime templateLastUpdated) where T : RazorTemplateBase
{
if (templateString == null)
{
throw new ArgumentNullException("templateString");
}
string key = TranslateKey(typeof(T), templateID);
RazorTemplateEntry entry = new RazorTemplateEntry()
{
TemplateType = typeof(T),
TemplateID = templateID,
TemplateUpdated = templateLastUpdated,
TemplateString = templateString,
TemplateName = "Rzr" + Guid.NewGuid().ToString("N") + "Template",
Namespaces = namespaces
};
if (!TemplateItems.ContainsKey(key))
{
TemplateItems[key] = entry;
}
else
{
if (TemplateItems[key].TemplateUpdated < templateLastUpdated || TemplateItems[key].Assembly == null)
{
TemplateItems[key] = entry;
}
}
}
/// <summary>
/// Removes a template from the entry list.
/// </summary>
/// <param name="templateID"></param>
public void RemoveTemplate(string templateID)
{
RazorTemplateEntry entryToRemove = TemplateItems.Where(e => e.Value.TemplateID.Equals(templateID)).Select(e => e.Value).FirstOrDefault();
if (entryToRemove != null)
{
TemplateItems.Remove(TranslateKey(entryToRemove.TemplateType, entryToRemove.TemplateID));
}
}
/// <summary>
/// Generates the code from a C# razor template.
/// </summary>
/// <param name="entry">The RazorTemplateEntry instance.</param>
/// <returns>The GeneratorResults object.</returns>
private static GeneratorResults GenerateCode(RazorTemplateEntry entry)
{
RazorEngineHost host = new RazorEngineHost(new CSharpRazorCodeLanguage());
host.DefaultBaseClass = entry.TemplateType.FullName;
host.DefaultNamespace = "Tridion.Extensions.Mediators.Razor.Templating";
host.DefaultClassName = entry.TemplateName;
host.GeneratedClassContext = new System.Web.Razor.Generator.GeneratedClassContext("Execute", "Write", "WriteLiteral", "WriteTo", "WriteLiteralTo", "Tridion.Extensions.Mediators.Razor.Templating.TemplateWriter", "DefineSection");
host.NamespaceImports.Add("System");
foreach (string ns in entry.Namespaces)
{
host.NamespaceImports.Add(ns);
}
GeneratorResults razorResult = null;
using (TextReader reader = new StringReader(entry.TemplateString))
{
razorResult = new RazorTemplateEngine(host).GenerateCode(reader);
}
return(razorResult);
}
/// <summary>
/// Generates the RazorTemplate that is ready to be executed.
/// </summary>
/// <typeparam name="T">Type of RazorTemplateBase</typeparam>
/// <returns>The RazorTemplate that is ready to execute.</returns>
public T GenerateTemplate <T>(string templateID) where T : RazorTemplateBase
{
RazorTemplateEntry entry = null;
if (TemplateItems.Count == 0)
{
throw new InvalidOperationException("Templates have not been compiled.");
}
try
{
entry = TemplateItems[TranslateKey(typeof(T), templateID)];
}
catch (KeyNotFoundException)
{
throw new ArgumentOutOfRangeException("No template has been registered under name.");
}
var template = (T)entry.Assembly.CreateInstance("Tridion.Extensions.Mediators.Razor.Templating." + entry.TemplateName);
return(template);
}
/// <summary>
/// Generates the code from a C# razor template.
/// </summary>
/// <param name="entry">The RazorTemplateEntry instance.</param>
/// <returns>The GeneratorResults object.</returns>
private static GeneratorResults GenerateCode(RazorTemplateEntry entry)
{
RazorEngineHost host = new RazorEngineHost(new CSharpRazorCodeLanguage());
host.DefaultBaseClass = entry.TemplateType.FullName;
host.DefaultNamespace = "Tridion.Extensions.Mediators.Razor.Templating";
host.DefaultClassName = entry.TemplateName;
host.GeneratedClassContext = new System.Web.Razor.Generator.GeneratedClassContext("Execute", "Write", "WriteLiteral", "WriteTo", "WriteLiteralTo", "Tridion.Extensions.Mediators.Razor.Templating.TemplateWriter", "DefineSection");
host.NamespaceImports.Add("System");
foreach (string ns in entry.Namespaces)
{
host.NamespaceImports.Add(ns);
}
GeneratorResults razorResult = null;
using (TextReader reader = new StringReader(entry.TemplateString))
{
razorResult = new RazorTemplateEngine(host).GenerateCode(reader);
}
return razorResult;
}
