function hook_mathfield_get_token_value_MODULE_alter in Math Field 7

Alter the value of a field token of a module for use in a math expression.

This hook allows other modules to change the replacement value of a token for a field type defined in the module MODULE.

Parameters

int|float|bool $value: The current numeric value of the field or FALSE.

array $context: An associative array with the following keys:

• 'field_name': The machine name of the token field.
• 'delta': The delta value of the token field for multivalue fields. Default is 0.
• 'column': The source column of the token field. Default is 'value'.
• 'token': The token used in the math expression.
• 'field': The field definition of the token field.
• 'instance': The field instance definition of the token field.
• 'element': The mathfield form element.
• 'form_state' The entire form_state array including submitted values. The token value is usually extracted from $context['form_state']['values'].

2 functions implement hook_mathfield_get_token_value_MODULE_alter()

Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.

mathfield_mathfield_get_token_value_list_alter in ./mathfield.module

Implements hook_mathfield_get_token_value_MODULE_alter() for the list.module.

mathfield_mathfield_get_token_value_number_alter in ./mathfield.module

Implements hook_mathfield_get_token_value_MODULE_alter() for the number.module.

File

./mathfield.api.php, line 231

Hooks provided by Math Field.

Code

function hook_mathfield_get_token_value_MODULE_alter(&$value, $context) {
  $values = $context['form_state']['values'];
  $field_name = $context['field_name'];
  $language = $context['element']['#language'];
  $delta = $context['delta'];
  $column = $context['column'];
  if (isset($values[$field_name][$language][$delta][$column]) && is_numeric($values[$field_name][$language][$delta][$column])) {
    $value = $values[$field_name][$language][$delta][$column];
  }
}