libQuotient
A Qt library for building matrix clients
Quotient::GetRelatingEventsWithRelTypeAndEventTypeJob Class Reference

Get the child events for a given parent event, with a given relType and eventType. More...

#include <relations.h>

Inheritance diagram for Quotient::GetRelatingEventsWithRelTypeAndEventTypeJob:
Collaboration diagram for Quotient::GetRelatingEventsWithRelTypeAndEventTypeJob:

Public Member Functions

 GetRelatingEventsWithRelTypeAndEventTypeJob (const QString &roomId, const QString &eventId, const QString &relType, const QString &eventType, const QString &from={}, const QString &to={}, std::optional< int > limit=std::nullopt, const QString &dir={}, std::optional< bool > recurse=std::nullopt)
 
QString nextBatch () const
 
QString prevBatch () const
 
std::optional< int > recursionDepth () const
 
RoomEvents chunk ()
 
- Public Member Functions inherited from Quotient::BaseJob
 BaseJob (HttpVerb verb, const QString &name, QByteArray endpoint, bool needsToken=true)
 
 BaseJob (HttpVerb verb, const QString &name, QByteArray endpoint, const QUrlQuery &query, RequestData &&data={}, bool needsToken=true)
 
QUrl requestUrl () const
 
bool isBackground () const
 
Status status () const
 
QString statusCaption () const
 
QByteArray rawData (int bytesAtMost) const
 
const QByteArray & rawData () const
 
QString rawDataSample (int bytesAtMost=65535) const
 
QJsonObject jsonData () const
 
QJsonArray jsonItems () const
 
template<typename T , typename StrT >
loadFromJson (const StrT &keyName, T &&defaultValue={}) const
 
template<typename T >
takeFromJson (const QString &key, T &&defaultValue={})
 
int error () const
 
virtual QString errorString () const
 
QUrl errorUrl () const
 
int maxRetries () const
 
void setMaxRetries (int newMaxRetries)
 
std::chrono::seconds getCurrentTimeout () const
 
Q_INVOKABLE Quotient::BaseJob::duration_ms_t getCurrentTimeoutMs () const
 
std::chrono::seconds getNextRetryInterval () const
 
Q_INVOKABLE Quotient::BaseJob::duration_ms_t getNextRetryMs () const
 
std::chrono::milliseconds timeToRetry () const
 
Q_INVOKABLE Quotient::BaseJob::duration_ms_t millisToRetry () const
 

Static Public Member Functions

static QUrl makeRequestUrl (QUrl baseUrl, const QString &roomId, const QString &eventId, const QString &relType, const QString &eventType, const QString &from={}, const QString &to={}, std::optional< int > limit=std::nullopt, const QString &dir={}, std::optional< bool > recurse=std::nullopt)
 Construct a URL without creating a full-fledged job object. More...
 
- Static Public Member Functions inherited from Quotient::BaseJob
template<typename... StrTs>
static QByteArray makePath (StrTs &&... parts)
 

Additional Inherited Members

- Public Types inherited from Quotient::BaseJob
enum  StatusCode {
  Success = 0 , NoError = Success , Pending = 1 , WarningLevel = 20 ,
  UnexpectedResponseType = 21 , UnexpectedResponseTypeWarning = UnexpectedResponseType , Unprepared = 25 , Abandoned = 50 ,
  ErrorLevel = 100 , NetworkError = 101 , Timeout , Unauthorised ,
  ContentAccessError , NotFound , IncorrectRequest , IncorrectResponse ,
  TooManyRequests , RateLimited = TooManyRequests , RequestNotImplemented , UnsupportedRoomVersion ,
  NetworkAuthRequired , UserConsentRequired , CannotLeaveRoom , UserDeactivated ,
  FileError , UserDefinedError = 256
}
 
using duration_ms_t = std::chrono::milliseconds::rep
 
- Public Slots inherited from Quotient::BaseJob
void initiate (Quotient::ConnectionData *connData, bool inBackground)
 
void abandon ()
 Abandon the result of this job, arrived or unarrived. More...
 
- Signals inherited from Quotient::BaseJob
void aboutToSendRequest (QNetworkRequest *req)
 The job is about to send a network request. More...
 
void sentRequest ()
 
void statusChanged (Quotient::BaseJob::Status newStatus)
 
void retryScheduled (int nextAttempt, Quotient::BaseJob::duration_ms_t inMilliseconds)
 
void rateLimited ()
 
void finished (Quotient::BaseJob *job)
 
void result (Quotient::BaseJob *job)
 
void success (Quotient::BaseJob *)
 
void failure (Quotient::BaseJob *)
 
void downloadProgress (qint64 bytesReceived, qint64 bytesTotal)
 
void uploadProgress (qint64 bytesSent, qint64 bytesTotal)
 
- Protected Types inherited from Quotient::BaseJob
using headers_t = QHash< QByteArray, QByteArray >
 
- Protected Slots inherited from Quotient::BaseJob
void timeout ()
 
virtual Status checkReply (const QNetworkReply *reply) const
 Check the pending or received reply for upfront issues. More...
 
- Protected Member Functions inherited from Quotient::BaseJob
const headers_trequestHeaders () const
 
void setRequestHeader (const headers_t::key_type &headerName, const headers_t::mapped_type &headerValue)
 
void setRequestHeaders (const headers_t &headers)
 
QUrlQuery query () const
 
void setRequestQuery (const QUrlQuery &query)
 
const RequestDatarequestData () const
 
void setRequestData (RequestData &&data)
 
const QByteArrayList & expectedContentTypes () const
 
void addExpectedContentType (const QByteArray &contentType)
 
void setExpectedContentTypes (const QByteArrayList &contentTypes)
 
QByteArrayList expectedKeys () const
 
void addExpectedKey (const QByteArray &key)
 
void setExpectedKeys (const QByteArrayList &keys)
 
const QNetworkReply * reply () const
 
QNetworkReply * reply ()
 
virtual void doPrepare ()
 
virtual void onSentRequest (QNetworkReply *)
 
virtual void beforeAbandon ()
 
virtual Status prepareResult ()
 An extension point for additional reply processing. More...
 
virtual Status prepareError (Status currentStatus)
 Process details of the error. More...
 
QJsonValue takeValueFromJson (const QString &key)
 Get direct access to the JSON response object in the job. More...
 
void setStatus (Status s)
 
void setStatus (int code, QString message)
 
void setLoggingCategory (QMessageLogger::CategoryFunction lcf)
 Set the logging category for the given job instance. More...
 
 ~BaseJob () override
 
- Static Protected Member Functions inherited from Quotient::BaseJob
static QUrl makeRequestUrl (QUrl baseUrl, const QByteArray &encodedPath, const QUrlQuery &query={})
 
- Properties inherited from Quotient::BaseJob
QUrl requestUrl
 
int maxRetries
 
int statusCode
 

Detailed Description

Get the child events for a given parent event, with a given relType and eventType.

Retrieve all of the child events for a given parent event which relate to the parent using the given relType and have the given eventType.

Note that when paginating the from token should be "after" the to token in terms of topological ordering, because it is only possible to paginate "backwards" through events, starting at from.

For example, passing a from token from page 2 of the results, and a to token from page 1, would return the empty set. The caller can use a from token from page 1 and a to token from page 2 to paginate over the same range, however.

Definition at line 224 of file relations.h.

Constructor & Destructor Documentation

◆ GetRelatingEventsWithRelTypeAndEventTypeJob()

Quotient::GetRelatingEventsWithRelTypeAndEventTypeJob::GetRelatingEventsWithRelTypeAndEventTypeJob ( const QString &  roomId,
const QString &  eventId,
const QString &  relType,
const QString &  eventType,
const QString &  from = {},
const QString &  to = {},
std::optional< int >  limit = std::nullopt,
const QString &  dir = {},
std::optional< bool >  recurse = std::nullopt 
)
explicit
Parameters
roomIdThe ID of the room containing the parent event.
eventIdThe ID of the parent event whose child events are to be returned.
relTypeThe relationship type to search for.
eventTypeThe event type of child events to search for.

Note that in encrypted rooms this will typically always be m.room.encrypted regardless of the event type contained within the encrypted payload.

Parameters
fromThe pagination token to start returning results from. If not supplied, results start at the most recent topological event known to the server.

Can be a next_batch or prev_batch token from a previous call, or a returned start token from /messages, or a next_batch token from /sync.

Parameters
toThe pagination token to stop returning results at. If not supplied, results continue up to limit or until there are no more events.

Like from, this can be a previous token from a prior call to this endpoint or from /messages or /sync.

Parameters
limitThe maximum number of results to return in a single chunk. The server can and should apply a maximum value to this parameter to avoid large responses.

Similarly, the server should apply a default value when not supplied.

Parameters
dirOptional (default b) direction to return events from. If this is set to f, events will be returned in chronological order starting at from. If it is set to b, events will be returned in reverse chronological order, again starting at from.
recurseWhether to additionally include events which only relate indirectly to the given event, i.e. events related to the given event via two or more direct relationships.

If set to false, only events which have direct a relation with the given event will be included.

If set to true, all events which relate to the given event, or relate to events that relate to the given event, will be included.

It is recommended that homeservers traverse at least 3 levels of relationships. Implementations may perform more but should be careful to not infinitely recurse.

The default value is false.

Member Function Documentation

◆ chunk()

RoomEvents Quotient::GetRelatingEventsWithRelTypeAndEventTypeJob::chunk ( )
inline

The child events of the requested event, ordered topologically most-recent first. The events returned will match the relType and eventType supplied in the URL.

Definition at line 320 of file relations.h.

◆ makeRequestUrl()

static QUrl Quotient::GetRelatingEventsWithRelTypeAndEventTypeJob::makeRequestUrl ( QUrl  baseUrl,
const QString &  roomId,
const QString &  eventId,
const QString &  relType,
const QString &  eventType,
const QString &  from = {},
const QString &  to = {},
std::optional< int >  limit = std::nullopt,
const QString &  dir = {},
std::optional< bool >  recurse = std::nullopt 
)
static

Construct a URL without creating a full-fledged job object.

This function can be used when a URL for GetRelatingEventsWithRelTypeAndEventTypeJob is necessary but the job itself isn't.

◆ nextBatch()

QString Quotient::GetRelatingEventsWithRelTypeAndEventTypeJob::nextBatch ( ) const
inline

An opaque string representing a pagination token. The absence of this token means there are no more results to fetch and the client should stop paginating.

Definition at line 303 of file relations.h.

◆ prevBatch()

QString Quotient::GetRelatingEventsWithRelTypeAndEventTypeJob::prevBatch ( ) const
inline

An opaque string representing a pagination token. The absence of this token means this is the start of the result set, i.e. this is the first batch/page.

Definition at line 307 of file relations.h.

◆ recursionDepth()

std::optional<int> Quotient::GetRelatingEventsWithRelTypeAndEventTypeJob::recursionDepth ( ) const
inline

If the recurse parameter was supplied by the client, this response field is mandatory and gives the actual depth to which the server recursed. If the client did not specify the recurse parameter, this field must be absent.

Definition at line 312 of file relations.h.


The documentation for this class was generated from the following file: