Re: hasOne->HABTM save problem

> Cake's auto-HABTM saving requires the field to be named a particular
> way in order to recognise it.

I personally get away with the as follows without issue:
echo $form->input('ClassificationWhat', array('type'=>'select',
'multiple'=>'checkbox', 'options'=>array($classificationWhats));

I believe the problem will be trying to use saveAll tow models away
from the HABTM association as saveAll does not go infinetly deep, it
only tends to save immideiatly associated records.

Try:
$this->Sample->ExportSample->saveAll($this->data,
array('validate'=>'first'));

This should validate/save all 3 models at once returning all your
required validation errors to your sample form if required.

HTH

Paul.

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