Many-to-many relationship between resources

[snowcreative]

@halftrainedharry

Can’t you just get the TV-value from the variable $resource?

Following up on this. Yes, “$resource” is available, so I don’t need to use getObject here. Don’t know why I did that; I suspect I copied this script from somewhere else I used it, in a place where $resource wasn’t available. Much simpler!

@halftrainedharry

I was just hoping, there was some easy way to read the tv-value in an event ($tv_value = $_POST['tv1'])) and store it in a custom table and then to clear that value ($_POST['tv1'] = ''; so that it doesn’t get stored to the TV-table. But I guess that’s not possible.

Ideally, you wouldn’t even need to do that. The value of the TV is generated on the fly when the resource editing form is loaded. The question is, how do we get that data into the TV in the form without having to use the database at all? If I knew more about how ExtJS works, I could probably inject some javascript to make that happen.

I’m continuing that topic here:

Question about system events

I have a multiselect TV that I’m just using for temporary purposes, and need to alter the selected values after the page is fully loaded for editing. The values for which select options need to be pre-selected are dynamically fetched using php in a plugin that runs OnDocFormRender. Is there some way to inject some ExtJS javascript that will do this? UPDATE: this is solved below, but more questions about how system events work follow.