Because controllers live much longer in Ionic, the challenge seems to be to keep them up to date - especially when they share data. I know that the ionic events for re-entering/leaving the controller could be used to trigger updates. Yet, this event pattern involves a lot of repetition and I don’t find it scales well.
The catch of my setup is the following:
- Some of the controllers share the same data. The data can change depending on user interaction.
- Sometimes controller A modifies the data, which means that controller B has to update dependencies to avoid stale data.
Non-solutions / solutions / ideas
- Using services that return promises does not work, because once they are resolved the cannot be retriggered.
- Observer-like pattern: controller listens to certain system events and defines a callback that is executed when event occurs.
- Destroy controllers and avoid having long-living controllers at all, controllers always fetch new/cached data when instantiated.
Does anyone have experience, ideas, suggestions, corrections how to tackle this problem?
If there are any questions, please do not hesitate to ask.