function views_handler_field_math::render

Overrides views_handler_field_numeric::render

File

handlers/views_handler_field_math.inc, line 53

Class

views_handler_field_math

Render a mathematical expression as a numeric value.

Code

public function render($values) {
    ctools_include('math-expr');
    $tokens = array_map('floatval', $this->get_render_tokens(array()));
    $value = strtr($this->options['expression'], $tokens);
    $expressions = explode(';', $value);
    $math = new ctools_math_expr();
    foreach ($expressions as $expression) {
        if ($expression !== '') {
            $value = $math->evaluate($expression);
        }
    }
    // The rest is directly from views_handler_field_numeric but because it
    // does not allow the value to be passed in, it is copied.
    if (!empty($this->options['set_precision'])) {
        $value = number_format($value, $this->options['precision'], $this->options['decimal'], $this->options['separator']);
    }
    else {
        $remainder = abs($value) - intval(abs($value));
        $value = $value > 0 ? floor((double) $value) : ceil((double) $value);
        $value = number_format($value, 0, '', $this->options['separator']);
        if ($remainder) {
            // The substr may not be locale safe.
            $value .= $this->options['decimal'] . substr($remainder, 2);
        }
    }
    // Check to see if hiding should happen before adding prefix and suffix.
    if ($this->options['hide_empty'] && empty($value) && ($value !== 0 || $this->options['empty_zero'])) {
        return '';
    }
    // Should we format as a plural.
    if (!empty($this->options['format_plural']) && ($value != 0 || !$this->options['empty_zero'])) {
        $value = format_plural($value, $this->options['format_plural_singular'], $this->options['format_plural_plural']);
    }
    return $this->sanitize_value($this->options['prefix'] . $value . $this->options['suffix']);
}