PodioItem::calculate - (object): must be array

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Alexander Vikulin

• September 13, 2013 11:59

I am trying to calculate sum of all payments made by a client:

$calc = PodioItem::calculate( _APP_ID_, array(

'aggregation' => 'sum',

'formula' => array('field' => _MONEY_FIELD_ID_),

'filters' => array(_APP_REFERENCE_FIELD_ID_ => array($student_id)),

) );

I receive the following error: Invalid value {"field": 38742627} (object): must be array

What am I doing wrong?

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• 

  Andreas Haugstrup Pedersen

  • September 16, 2013 06:21

  Hi Alexander,

  You can see in the reference documentation that the 'filters', 'formula' (and 'grouping') sections are arrays of objects. In your case you're just passing an object (a PHP associative array will become an object when serialized to json).

  So the first step is to wrap them in another array:

  $calc = PodioItem::calculate( _APP_ID_, array(

  'aggregation' => 'sum',

  'formula' => array(array('field' => _MONEY_FIELD_ID_)),

  'filters' => array(array(_APP_REFERENCE_FIELD_ID_ => array($student_id))),

  ) );

  When working with complex attributes arrays it can be a good idea to run your attributes through json_encode() to make sure you have the json serialization you think you have...

  All the best,
  
  Andreas

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