Yii - Include field from another model

Question

my question consists of two parts:

1, I'm developing small ticketing software for technical support. I have model and views for Workorder (type of ticket). I would like to include another model's field/input into this model. This model is called WorkorderJournalUpdate. It's basicly just table with 3 rows: *id, workorder_id, text*. In this case, "workorder_id" is in HAS_MANY relation with "workorder_id" in Workorder model/table.

The reason why I want to include this field/model is to create unique journal record after each Workorder update, so it looks like this:

http://luzer.eu/pu_files/27844_RelationsTC.jpg

//Edit: It would be great, if I could add new journal entry on each page update and as well read all previous records.

2, this part of my question is simple. I would like to make rule in model to make certain fields required, but only if other field is filled in. For example:

Order ID:
Ordered by:

If Order ID is not filled in, Ordered by should not be required. If Ordered by is filled in and Order ID is not, Order ID should be required. Is this possible with "required on" rule?

This is all, hopefully, somebody will be able to help me. Thank you in advance!

Answer 1

May be this like can help you

http://www.yiiframework.com/wiki/19/how-to-use-a-single-form-to-collect-data-for-two-or-more-models/