public async Task SetCourseBySlugAsync(CourseViewDTO course)
{
var idCacheKey = await EnsureCourseCacheKey(course.Id.Value);
var cacheKey = $"{nameof(CoursesController)}_{nameof(CoursesController.GetCourseBySlug)}_{course.CourseDef.Slug}";
await cache.SetStringAsync(
cacheKey,
jsonSerializer.Serialize(course),
ExtendedDistributedCacheEntryOptions.New.AddDependencyKey(CacheKeyDependency.WithKey(idCacheKey))
);
}
private async Task <string> EnsureCourseCacheKey(Guid courseId)
{
await EnsureCoursesMasterCacheKey();
var idCacheKey = $"{nameof(Course)}_{courseId}";
var data = await cache.GetAsync(idCacheKey);
if (data is null)
{
await cache.SetAsync(
idCacheKey,
new byte[0],
ExtendedDistributedCacheEntryOptions.New
.AddDependencyKey(CacheKeyDependency.WithKey(coursesMasterCacheKey))
);
}
return(idCacheKey);
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
var parentControl = (Parent as BasePartialCachingControl);
if (parentControl == null)
{
return;
}
if (EnableCaching)
{
parentControl.CachePolicy.Duration = CacheDuration;
if (!string.IsNullOrEmpty(CacheVaryByControl))
{
parentControl.CachePolicy.VaryByControl = CacheVaryByControl;
}
if (!string.IsNullOrEmpty(CacheVaryByCustom))
{
parentControl.CachePolicy.SetVaryByCustom(CacheVaryByCustom);
}
if (!string.IsNullOrEmpty(CacheKeyDependency))
{
string[] cacheKeys = CacheKeyDependency.Split(',');
// add cache dependency keys if they aren't already in cache
foreach (string cacheKey in cacheKeys)
{
if (Cache.Get(cacheKey) == null)
{
Cache.Add(cacheKey, string.Empty, null, Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration, CacheItemPriority.Normal, null);
}
}
// add key dependency
parentControl.CachePolicy.Dependency = new CacheDependency(null, cacheKeys);
}
}
else
{
parentControl.CachePolicy.Cached = false;
}
}
public async Task SetCoursesRefAsync(List <CourseEditDTO> courses)
{
var cacheKey = $"{nameof(CoursesController)}_{nameof(CoursesController.GetCoursesRef)}";
await EnsureCoursesMasterCacheKey();
await cache.SetStringAsync(cacheKey, jsonSerializer.Serialize(courses), ExtendedDistributedCacheEntryOptions.New.AddDependencyKey(CacheKeyDependency.WithKey(coursesMasterCacheKey)));
}
public async Task SetCourseMembersAsync(Guid courseId, List <UserDTO> members)
{
var idCacheKey = await EnsureCourseCacheKey(courseId);
var cacheKey = $"{nameof(CoursesController)}_{nameof(CoursesController.GetCourseMembers)}_{courseId}";
await cache.SetStringAsync(cacheKey, jsonSerializer.Serialize(members),
ExtendedDistributedCacheEntryOptions.New.AddDependencyKey(CacheKeyDependency.WithKey(idCacheKey))
);
}
internal CacheItem(object key, object value, CacheKeyDependency dependency)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
this._key = key;
this._value = value;
this._removedReason = ObjectCacheItemRemovedReason.Underused;
this._dateCreated = DateTime.UtcNow;
this._absoluteExpiration = this._dateCreated.AddSeconds(300.0);
this._dependency = dependency;
this._callback = null;
}