1 views_handler_field_math.inc | views_handler_field_math::render($values) |
Render the field.
Parameters
$values: The values retrieved from the database.
Overrides views_handler_field_numeric::render
File
- core/
modules/ views/ handlers/ views_handler_field_math.inc, line 42 - Definition of views_handler_field_math.
Class
- views_handler_field_math
- Render a mathematical expression as a numeric value
Code
function render($values) {
include_once BACKDROP_ROOT . '/core/includes/evalmath.inc';
$tokens = array_map('floatval', $this->get_render_tokens(array()));
$value = strtr($this->options['expression'], $tokens);
$expressions = explode(';', $value);
$math = new EvalMath;
foreach ($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.
// Check to see if hiding should happen before adding prefix and suffix.
if ($this->options['hide_empty'] && empty($value) && ($value !== 0 || $this->options['empty_zero'])) {
return '';
}
if (!empty($this->options['set_precision'])) {
$precision = $this->options['precision'];
}
elseif ($decimal_position = strpos($value, '.')) {
$precision = strlen(rtrim($value, '0')) - $decimal_position - 1;
}
else {
$precision = 0;
}
// Use round first to avoid negative zeros.
$value = round($value, $precision);
// Test against both integer zero and float zero.
if ($this->options['empty_zero'] && ($value === 0 || $value === 0.0)) {
return '';
}
$value = number_format($value, $precision, $this->options['decimal'], $this->options['separator']);
// Should we format as a plural.
if (!empty($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']);
}