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:

Classes

struct  Response
 

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
 Current status of the job. More...
 
QString statusCaption () const
 Short human-friendly message on the job status. More...
 
QByteArray rawData (int bytesAtMost) const
 Get first bytes of the raw response body as received from the server. More...
 
const QByteArray & rawData () const
 Access the whole response body as received from the server. More...
 
QString rawDataSample (int bytesAtMost=65535) const
 Get UI-friendly sample of raw data. More...
 
QJsonObject jsonData () const
 Get the response body as a JSON object. More...
 
QJsonArray jsonItems () const
 Get the response body as a JSON array. More...
 
template<typename T >
loadFromJson (auto keyName, T &&defaultValue={}) const
 Load the property from the JSON response assuming a given C++ type. More...
 
template<typename T >
takeFromJson (auto key, T &&defaultValue={})
 Load the property from the JSON response and delete it from JSON. More...
 
int error () const
 Error (more generally, status) code. More...
 
virtual QString errorString () const
 Error-specific message, as returned by the server. More...
 
QUrl errorUrl () const
 A URL to help/clarify the error, if provided by the server. More...
 
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 (const HomeserverData &hsData, 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 (QByteArrayView base, 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 , AccountLocked , UserDefinedError = 256
}
 Job status codes. More...
 
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 ()
 The job has sent a network request. More...
 
void statusChanged (Quotient::BaseJob::Status newStatus)
 The job has changed its status. More...
 
void retryScheduled (int nextAttempt, Quotient::BaseJob::duration_ms_t inMilliseconds)
 A retry of the network request is scheduled after the previous request failed. More...
 
void rateLimited ()
 The job has been rate-limited. More...
 
void finished (Quotient::BaseJob *job)
 The job has finished - either with a result, or abandoned. More...
 
void result (Quotient::BaseJob *job)
 The job has finished with a result, successful or unsuccessful. More...
 
void success (Quotient::BaseJob *)
 The job has finished with a successful result. More...
 
void failure (Quotient::BaseJob *)
 The job has finished with a failure result Emitted together with result() when the job resulted in an error. Mutually exclusive with success(): after result() is emitted, exactly one of success() and failure() will be emitted next. Will not be emitted in case of abandon()ing. More...
 
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 ()
 
- Protected Member Functions inherited from Quotient::BaseJob
QByteArray apiEndpoint () const
 
void setApiEndpoint (QByteArray apiEndpoint)
 
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)
 
QStringList expectedKeys () const
 
void addExpectedKey (QString key)
 
void setExpectedKeys (const QStringList &keys)
 
const QNetworkReply * reply () const
 
QNetworkReply * reply ()
 
virtual void doPrepare (const ConnectionData *)
 Prepare the job for execution. More...
 
virtual void onSentRequest (QNetworkReply *)
 Postprocessing after the network request has been sent. More...
 
virtual void beforeAbandon ()
 
virtual Status checkReply (const QNetworkReply *reply) const
 Check the pending or received reply for upfront issues. More...
 
virtual Status prepareResult ()
 An extension point for additional reply processing. More...
 
virtual Status prepareError (Status currentStatus)
 Process details of the error. More...
 
QJsonValue takeValueFromJson (QAnyStringView key)
 Retrieve a value for one specific key and delete it from the JSON response object. More...
 
void setStatus (Status s)
 
void setStatus (int code, QString message)
 
void forceResult (QJsonDocument resultDoc, Status s={ Success })
 Force completion of the job for sake of testing. More...
 
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 (const HomeserverData &hsData, const QByteArray &encodedPath, const QUrlQuery &query={})
 Construct a URL out of baseUrl, path and query. More...
 
- 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 272 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 a direct relation with the given event will be included.

If set to true, events which have an indirect relation with the given event will be included additionally up to a certain depth level. Homeservers SHOULD traverse at least 3 levels of relationships. Implementations MAY perform more but MUST 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 367 of file relations.h.

◆ makeRequestUrl()

static QUrl Quotient::GetRelatingEventsWithRelTypeAndEventTypeJob::makeRequestUrl ( const HomeserverData hsData,
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 350 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 354 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 359 of file relations.h.


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