public IActionResult GetById(int id, DateTimeOffset?timestamp = null)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var status = _entityIndex.Status(ResourceType.Tag, id) ?? ContentStatus.Published;
if (!UserPermissions.IsAllowedToGet(User.Identity, status, _entityIndex.Owner(ResourceType.Tag, id)))
{
return(Forbid());
}
var tag = _db.Database.GetCollection <Tag>(ResourceType.Tag.Name)
.AsQueryable()
.FirstOrDefault(x => x.Id == id);
if (tag == null)
{
return(NotFound());
}
if (timestamp != null && tag.Timestamp <= timestamp.Value)
{
return(StatusCode(304));
}
var tagResult = new TagResult(tag)
{
Timestamp = _referencesIndex.LastModificationCascading(ResourceType.Tag, id)
};
return(Ok(tagResult));
}
// APIs to get the state of an entity at a specific point in time
/*
* [HttpGet("/api/Exhibits/{id}/History/{timestamp}")]
* public Task<IActionResult> GetExhibitVersion(int id, DateTimeOffset timestamp) =>
* GetVersionAsync<Exhibit>(ResourceType.Exhibit, id, timestamp);
*
* [HttpGet("/api/Exhibits/Pages/{id}/History/{timestamp}")]
* public Task<IActionResult> GetExhibitPageVersion(int id, DateTimeOffset timestamp) =>
* GetVersionAsync<ExhibitPage>(ResourceType.ExhibitPage, id, timestamp);
*
* [HttpGet("/api/Media/{id}/History/{timestamp}")]
* public Task<IActionResult> GetMediaVersion(int id, DateTimeOffset timestamp) =>
* GetVersionAsync<MediaElement>(ResourceType.Media, id, timestamp);
*
* [HttpGet("/api/Routes/{id}/History/{timestamp}")]
* public Task<IActionResult> GetRouteVersion(int id, DateTimeOffset timestamp) =>
* GetVersionAsync<Route>(ResourceType.Route, id, timestamp);
*
* [HttpGet("/api/Tags/{id}/History/{timestamp}")]
* public Task<IActionResult> GetTagVersion(int id, DateTimeOffset timestamp) =>
* GetVersionAsync<Route>(ResourceType.Tag, id, timestamp);
*/
// Private helper methods
private async Task <IActionResult> GetSummaryAsync(ResourceType type, int id)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (!UserPermissions.IsAllowedToGetHistory(User.Identity, _entityIndex.Owner(type, id)))
{
return(Forbid());
}
var summary = await HistoryUtil.GetSummaryAsync(_eventStore.EventStream, (type, id));
return(Ok(summary));
}
public IActionResult GetById(int id, DateTimeOffset?timestamp = null)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var status = _entityIndex.Status(ResourceType.Media, id) ?? ContentStatus.Published;
if (!UserPermissions.IsAllowedToGet(User.Identity, status, _entityIndex.Owner(ResourceType.Media, id)))
{
return(Forbid());
}
var media = _db.Database.GetCollection <MediaElement>(ResourceType.Media.Name)
.AsQueryable()
.FirstOrDefault(x => x.Id == id);
if (media == null)
{
return(NotFound());
}
// Media instance wasn`t modified after timestamp
if (timestamp != null && media.Timestamp <= timestamp)
{
return(StatusCode(304));
}
var result = new MediaResult(media)
{
File = GenerateFileUrl(media),
Timestamp = _referencesIndex.LastModificationCascading(ResourceType.Media, id)
};
return(Ok(result));
}
