You will need to apply the validation rules in the Category and Scene
models or in the beforeFilter of the model in which you are running
the add/edit actions you can add
$this->ModelName->Category->validate = array(
'Category' => array(
'rule' => array('multiple', array('min'=>1)),
'message' => 'Select one or more categories'
)
);
$this->ModelName->Scene->validate = array(
'Scene' => array(
'rule' => array('multiple', array('min'=>1)),
'message' => 'Select one or more scenes'
)
);
You will probably find that the rules are still ignored and I think
this is down to saveAll not validating HABTM data before saving it.
To get around this I edited the core /cake/libs/model/model.php
(details earlier in the thread), but I am far from an expert, so not
sure if this is the right thing to do or the right way to go about
it.
As yet no-one who knows better has taken part in the conversation to
confirm if my suspicion about saveAll is right?!?
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