private function normalizeFieldName($field)
    {
        if (
            is_object($field)
            && isset($field->_trackableTrait)
            && $field->owner === $this
        ) {
            $field = $field->short_name;
        }

        if (!is_string($field) || $field === '' || is_numeric($field[0])) {
            throw new Exception([
                'Incorrect specification of field name',
                'arg' => $field,
            ]);
        }

        if ($this->only_fields) {
            if (!in_array($field, $this->only_fields) && !$this->getField($field)->system) {
                throw new Exception([
                    'Attempt to use field outside of those set by onlyFields',
                    'field'       => $field,
                    'only_fields' => $this->only_fields,
                ]);
            }
        }

        if ($this->strict_field_check && !isset($this->elements[$field])) {
            throw new Exception([
                'Field is not defined inside a Model',
                'field'       => $field,
                'model'       => $this,
            ]);
        }

        return $field;
    }
private function normalizeFieldName($field)
    {
        if (
            is_object($field)
            && isset($field->_trackableTrait)
            && $field->owner === $this
        ) {
            $field = $field->short_name;
        }

        if (!is_string($field) || $field === '' || is_numeric($field[0])) {
            throw new Exception([
                'Incorrect specification of field name',
                'arg' => $field,
            ]);
        }

        if ($this->only_fields) {
            if (!in_array($field, $this->only_fields) && !$this->getField($field)->system) {
                throw new Exception([
                    'Attempt to use field outside of those set by onlyFields',
                    'field'       => $field,
                    'only_fields' => $this->only_fields,
                ]);
            }
        }

        if ($this->strict_field_check && !isset($this->elements[$field])) {
            throw new Exception([
                'Field is not defined inside a Model',
                'field'       => $field,
                'model'       => $this,
            ]);
        }

        return $field;
    }
private function normalizeFieldName ( $ field ) { if ( is_object ( $ field ) && isset ( $ field -> _trackableTrait ) && $ field -> owner === $ this ) { $ field = $ field -> short_name ; } if ( ! is_string ( $ field ) || $ field === '' || is_numeric ( $ field [ 0 ] ) ) { throw new Exception ( [ 'Incorrect specification of field name' , 'arg' => $ field , ] ) ; } if ( $ this -> only_fields ) { if ( ! in_array ( $ field , $ this -> only_fields ) && ! $ this -> getField ( $ field ) -> system ) { throw new Exception ( [ 'Attempt to use field outside of those set by onlyFields' , 'field' => $ field , 'only_fields' => $ this -> only_fields , ] ) ; } } if ( $ this -> strict_field_check && ! isset ( $ this -> elements [ $ field ] ) ) { throw new Exception ( [ 'Field is not defined inside a Model' , 'field' => $ field , 'model' => $ this , ] ) ; } return $ field ; }
Normalize field name.

@param mixed $field

@return string
Normalize field name .