Function calls in php code action

Hi,
​
I have just started converting some CF5 forms to CF6.
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I had in CF5 some custom code to populate a form after API call to a database:
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$form->data['field1'] = $sr['field_1'];

​
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So I started to change to the CF6 function calls, but then in testing I found that both:

$this->data('field1', $sr['field_1'],true);

and

$this->data['field1'] = $sr['field_1'];

​
both seem to populate the form field. So maybe I just have to change "form" to "this". in each line. Being quite lazy, I am wondering if there is any problem with using the second format throughout my converted forms, or if it is necessary to use the CF6 function calls for some reason.
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Cheers
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Tim

Hi Tim,
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i have done exactly the same e.g. :just changed "form" for "this" without noticeable issue.
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best regards,
​
simelas