Fix api bug whereby 0 & '0' are not accepted as range parameters for BETWEEN

[eileenmcnaughton]

Overview

Fix api bug whereby 0 & '0' are not accepted as range parameters for BETWEEN

Before

These api calls are rejected

    civicrm_api3($this->_entity, 'get', [
      'contact_id' => ['BETWEEN' => [0, 9]],
    ]);
     civicrm_api3($this->_entity, 'get', [
      'contact_id' => ['BETWEEN' => [-9, 0]],
    ]);

After

Above calls succeed

Technical Details

In other news I'm not thrilled about the 0 casting to a string here but that is for another time

Comments

[civibot]

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[eileenmcnaughton]

honestly this -9 - I've tried so many formatting variants & been rejected by the style checker- hence the weirdly laid out array. Now resorting to making it a calculation

[eileenmcnaughton]

merging based on Erik's review - this is also pretty safe, trivial & tested