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Update FAQ on the global flag

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Abbas Abou Daya 2017-10-31 23:08:23 -04:00
parent 1f5706b525
commit b53d252fb4
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TelegramBots.wiki/abilities/Advanced.md
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@ -23,17 +23,12 @@ It is possible to declare "DEFAULT" abilities that process non-command messages.
This ability will send a *"Daaaaang, what a nice photo!"* whenever the bot receives a photo. This is one use case where replies and abilities are interchangeable.
## The Global Flag
However, there is one important note here. This ability without any additional code will not be able to process photos. There is a global flag in AbilityBot that restricts the kind of "updates" it can process.
To freely process any update given to your bot, make sure to:
There is a global flag in AbilityBot that restricts the kind of "updates" it can process. The default implementation is passthrough - it allows all updates to be processed.
As an example, if you want to restrict the updates to photos only, then you may do:
```java
/**
* By default, any update that does not have a message will not pass through abilities.
* To customize that, you can just override this global flag and make it return true at every update.
* This way, the ability flags will be the only ones responsible for checking the update's validity.
*/
@Override
public boolean checkGlobalFlags(Update update) {
return true;
return Flag.PHOTO;
}
```