[Klaus79]

vor 5 Jahren, 4 Monaten #19824

I do not get a channel from following code snippet.

var oChannel = getChannel(this, sChannelId);
if (!oChannel) {
// no channel
if (Log.isLoggable(Log.Level.DEBUG, “sap.ui.core.EventBus”)) {
Log.debug(“Failed to publish into channel ‘” + sChannelId + “‘.” + ” No such channel.”, sChannelId, “sap.ui.core.EventBus”);
}
return;
}

Problem is following line: getChannel(this, sChannelId);

getChannel returns ‘undefined’.

sChannelId = Password_ModulToApp

 

which channel/data is missing?

 

[Klaus79]

vor 5 Jahren, 4 Monaten #19825

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there is no ‘Password_ModulToApp’ in oEventBus (see below).

Name of ‘sChannelId’ is generated by Simplifier.

 

oEventBus._mChannels

[object]
__proto__

[object]
ApplicationChannel

[object (constructor)]
Home

[object (constructor)]
Login

[object (constructor)]
Main

[object (constructor)]
sap.ui

[object (constructor)]
Screen_Approval

[object (constructor)]
Screen_Infosystem

[object (constructor)]
Screen_Main

[object (constructor)]
Screen_Password

[object (constructor)]
Screen_Roles

[object (constructor)]
Screen_StatusDialog

[object (constructor)]
Screen_User_Maintain

[object (constructor)]
Screen_valueHelp_Customer

[object (constructor)]
SuperAdministration

[object (constructor)]

[Mathieu Roll]

vor 5 Jahren, 4 Monaten #19829

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Did you changed the Interface name in your module ?

because this would perhaps be the problem.

[Klaus79]

vor 5 Jahren, 4 Monaten #19832

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No, nothing changed.

sap.ui.getCore().getEventBus().publish(this.getModuleName() + “ToApp”, “statusMessage”, adataForstatusMessage);

the generated code “this.getModuleName() + “ToApp” creates in my oppinion the wrong channel name <modul_name>+”ToApp” (results in my example in:  “Password_ModulToApp”

 

But if i change it to “Screen_StatusDialog” (channel will be found now) I get another error  “no event is registered” (see Simplifier code below).

var aEventListeners  will be ‘undefined’.

 

var aEventListeners = EventProvider.getEventList(oChannel)[sEventId];
if (Array.isArray(aEventListeners)) {
// this ensures no ‘concurrent modification exception’ occurs (e.g. an event listener deregisters itself).
aEventListeners = aEventListeners.slice();
var oInfo;
for (var i = 0, iL = aEventListeners.length; i < iL; i++) {
oInfo = aEventListeners[i];
this._callListener(oInfo.fFunction, oInfo.oListener || this, sChannelId, sEventId, oData);
}
} else if (Log.isLoggable(Log.Level.DEBUG, “sap.ui.core.EventBus”)) {
// no listeners
Log.debug(“Failed to publish Event ‘” + sEventId + “‘ in ‘” + sChannelId + “‘.” + ” No listeners found.”, sChannelId + “#” + sEventId, “sap.ui.core.EventBus”);
}

 

[Armin Winkler]

vor 5 Jahren #21773

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Hello,

is this problem still occuring inside of your application? There should have been a fix for this problem included in hotfix 69 for Simplifier release 5.0 if I read our internal release notes correctly.

 

Regards,

Armin