[color="#FF0000"]I solved this issue myself and it turned out to be based on a fault assumption. Please see my reply below and my edits in this post![/color]
OK, this has been driving me mad all day and I cannot work out what the problem is.
I have two tables:
Equipment
[color="#FF0000"]idequipment[/color]
equip_name
…
Changes
[color="#FF0000"]idchanges[/color]
change_date
change_details
[color="#00FF00"]idequipment[/color]
[color="#FF0000"]Primary Key[/color]
[color="#00FF00"]Foreign Key[/color]
Each row in Changes has one item of equipment that it relates to, using the foreign key idequipment.
Now, in Yii I can quite happily use the defined BELONGS_TO relation
'equipment' => array(self::BELONGS_TO, 'Equipment', 'idequipment')
to access all the equipment details relating to the Changes item. So I can view a Changes record in Yii and see any related Equipment information.
I have been asked to show a history of changes when viewing a piece of equipment. Naturally I assume I use the HAS_MANY relation in the Equipment model:
'changes' => array(self::HAS_MANY, 'Changes', 'idequipment'),
So in my View.php for Equipment I added:
'changes.change_date'
to the CDetailView widget.
I also edited the EquipmentController loadModel() method to add [font=“Courier New”]->with(‘changes’)[/font]
$model=Equipment::model()->with('changes')->findByPk($id);
Unfortunately, when I try going to the detailed view of an Equipment item all the fields from ‘changes’ are “Not Set”. If I try directly accessing [font=“Courier New”]$model->changes->‘afieldname’[/font] I get a ‘Trying to get property of non-object’ error.
[color="#FF0000"]The above should be [font=“Courier New”]$model->changes[0]->‘afieldname’[/font] since HAS_MANY returns an array, even with a single result.[/color]
All the records I am testing with are fully populated. The pieces of Equipment I am viewing are definitely linked to at least one Change record.
Any help would be greatly appreciated. Before I go bananas!
