number.module in Drupal 7
Defines numeric field types.
File
modules/field/modules/number/number.moduleView source
<?php
/**
* @file
* Defines numeric field types.
*/
/**
* Implements hook_help().
*/
function number_help($path, $arg) {
switch ($path) {
case 'admin/help#number':
$output = '';
$output .= '<h3>' . t('About') . '</h3>';
$output .= '<p>' . t('The Number module defines various numeric field types for the Field module. Numbers can be in integer, decimal, or floating-point form, and they can be formatted when displayed. Number fields can be limited to a specific set of input values or to a range of values. See the <a href="@field-help">Field module help page</a> for more information about fields.', array(
'@field-help' => url('admin/help/field'),
)) . '</p>';
return $output;
}
}
/**
* Implements hook_field_info().
*/
function number_field_info() {
return array(
'number_integer' => array(
'label' => t('Integer'),
'description' => t('This field stores a number in the database as an integer.'),
'instance_settings' => array(
'min' => '',
'max' => '',
'prefix' => '',
'suffix' => '',
),
'default_widget' => 'number',
'default_formatter' => 'number_integer',
),
'number_decimal' => array(
'label' => t('Decimal'),
'description' => t('This field stores a number in the database in a fixed decimal format.'),
'settings' => array(
'precision' => 10,
'scale' => 2,
'decimal_separator' => '.',
),
'instance_settings' => array(
'min' => '',
'max' => '',
'prefix' => '',
'suffix' => '',
),
'default_widget' => 'number',
'default_formatter' => 'number_decimal',
),
'number_float' => array(
'label' => t('Float'),
'description' => t('This field stores a number in the database in a floating point format.'),
'settings' => array(
'decimal_separator' => '.',
),
'instance_settings' => array(
'min' => '',
'max' => '',
'prefix' => '',
'suffix' => '',
),
'default_widget' => 'number',
'default_formatter' => 'number_decimal',
),
);
}
/**
* Implements hook_field_settings_form().
*/
function number_field_settings_form($field, $instance, $has_data) {
$settings = $field['settings'];
$form = array();
if ($field['type'] == 'number_decimal') {
$form['precision'] = array(
'#type' => 'select',
'#title' => t('Precision'),
'#options' => drupal_map_assoc(range(10, 32)),
'#default_value' => $settings['precision'],
'#description' => t('The total number of digits to store in the database, including those to the right of the decimal.'),
'#disabled' => $has_data,
);
$form['scale'] = array(
'#type' => 'select',
'#title' => t('Scale'),
'#options' => drupal_map_assoc(range(0, 10)),
'#default_value' => $settings['scale'],
'#description' => t('The number of digits to the right of the decimal.'),
'#disabled' => $has_data,
);
}
if ($field['type'] == 'number_decimal' || $field['type'] == 'number_float') {
$form['decimal_separator'] = array(
'#type' => 'select',
'#title' => t('Decimal marker'),
'#options' => array(
'.' => t('Decimal point'),
',' => t('Comma'),
),
'#default_value' => $settings['decimal_separator'],
'#description' => t('The character users will input to mark the decimal point in forms.'),
);
}
return $form;
}
/**
* Implements hook_field_instance_settings_form().
*/
function number_field_instance_settings_form($field, $instance) {
$settings = $instance['settings'];
$form['min'] = array(
'#type' => 'textfield',
'#title' => t('Minimum'),
'#default_value' => $settings['min'],
'#description' => t('The minimum value that should be allowed in this field. Leave blank for no minimum.'),
'#element_validate' => array(
'element_validate_number',
),
);
$form['max'] = array(
'#type' => 'textfield',
'#title' => t('Maximum'),
'#default_value' => $settings['max'],
'#description' => t('The maximum value that should be allowed in this field. Leave blank for no maximum.'),
'#element_validate' => array(
'element_validate_number',
),
);
$form['prefix'] = array(
'#type' => 'textfield',
'#title' => t('Prefix'),
'#default_value' => $settings['prefix'],
'#size' => 60,
'#description' => t("Define a string that should be prefixed to the value, like '\$ ' or '€ '. Leave blank for none. Separate singular and plural values with a pipe ('pound|pounds')."),
);
$form['suffix'] = array(
'#type' => 'textfield',
'#title' => t('Suffix'),
'#default_value' => $settings['suffix'],
'#size' => 60,
'#description' => t("Define a string that should be suffixed to the value, like ' m', ' kb/s'. Leave blank for none. Separate singular and plural values with a pipe ('pound|pounds')."),
);
return $form;
}
/**
* Implements hook_field_validate().
*
* Possible error codes:
* - 'number_min': The value is less than the allowed minimum value.
* - 'number_max': The value is greater than the allowed maximum value.
*/
function number_field_validate($entity_type, $entity, $field, $instance, $langcode, $items, &$errors) {
foreach ($items as $delta => $item) {
if ($item['value'] != '') {
if (is_numeric($instance['settings']['min']) && $item['value'] < $instance['settings']['min']) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'number_min',
'message' => t('%name: the value may be no less than %min.', array(
'%name' => $instance['label'],
'%min' => $instance['settings']['min'],
)),
);
}
if (is_numeric($instance['settings']['max']) && $item['value'] > $instance['settings']['max']) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'number_max',
'message' => t('%name: the value may be no greater than %max.', array(
'%name' => $instance['label'],
'%max' => $instance['settings']['max'],
)),
);
}
}
}
}
/**
* Implements hook_field_presave().
*/
function number_field_presave($entity_type, $entity, $field, $instance, $langcode, &$items) {
if ($field['type'] == 'number_decimal') {
// Let PHP round the value to ensure consistent behavior across storage
// backends.
foreach ($items as $delta => $item) {
if (isset($item['value'])) {
$items[$delta]['value'] = round($item['value'], $field['settings']['scale']);
}
}
}
if ($field['type'] == 'number_float') {
// Remove the decimal point from float values with decimal
// point but no decimal numbers.
foreach ($items as $delta => $item) {
if (isset($item['value'])) {
$items[$delta]['value'] = floatval($item['value']);
}
}
}
}
/**
* Implements hook_field_is_empty().
*/
function number_field_is_empty($item, $field) {
if (empty($item['value']) && (string) $item['value'] !== '0') {
return TRUE;
}
return FALSE;
}
/**
* Implements hook_field_formatter_info().
*/
function number_field_formatter_info() {
return array(
// The 'Default' formatter is different for integer fields on the one hand,
// and for decimal and float fields on the other hand, in order to be able
// to use different default values for the settings.
'number_integer' => array(
'label' => t('Default'),
'field types' => array(
'number_integer',
),
'settings' => array(
'thousand_separator' => '',
// The 'decimal_separator' and 'scale' settings are not configurable
// through the UI, and will therefore keep their default values. They
// are only present so that the 'number_integer' and 'number_decimal'
// formatters can use the same code.
'decimal_separator' => '.',
'scale' => 0,
'prefix_suffix' => TRUE,
),
),
'number_decimal' => array(
'label' => t('Default'),
'field types' => array(
'number_decimal',
'number_float',
),
'settings' => array(
'thousand_separator' => '',
'decimal_separator' => '.',
'scale' => 2,
'prefix_suffix' => TRUE,
),
),
'number_unformatted' => array(
'label' => t('Unformatted'),
'field types' => array(
'number_integer',
'number_decimal',
'number_float',
),
),
);
}
/**
* Implements hook_field_formatter_settings_form().
*/
function number_field_formatter_settings_form($field, $instance, $view_mode, $form, &$form_state) {
$display = $instance['display'][$view_mode];
$settings = $display['settings'];
$element = array();
if ($display['type'] == 'number_decimal' || $display['type'] == 'number_integer') {
$options = array(
'' => t('<none>'),
'.' => t('Decimal point'),
',' => t('Comma'),
' ' => t('Space'),
);
$element['thousand_separator'] = array(
'#type' => 'select',
'#title' => t('Thousand marker'),
'#options' => $options,
'#default_value' => $settings['thousand_separator'],
);
if ($display['type'] == 'number_decimal') {
$element['decimal_separator'] = array(
'#type' => 'select',
'#title' => t('Decimal marker'),
'#options' => array(
'.' => t('Decimal point'),
',' => t('Comma'),
),
'#default_value' => $settings['decimal_separator'],
);
$element['scale'] = array(
'#type' => 'select',
'#title' => t('Scale'),
'#options' => drupal_map_assoc(range(0, 10)),
'#default_value' => $settings['scale'],
'#description' => t('The number of digits to the right of the decimal.'),
);
}
$element['prefix_suffix'] = array(
'#type' => 'checkbox',
'#title' => t('Display prefix and suffix.'),
'#default_value' => $settings['prefix_suffix'],
);
}
return $element;
}
/**
* Implements hook_field_formatter_settings_summary().
*/
function number_field_formatter_settings_summary($field, $instance, $view_mode) {
$display = $instance['display'][$view_mode];
$settings = $display['settings'];
$summary = array();
if ($display['type'] == 'number_decimal' || $display['type'] == 'number_integer') {
$summary[] = number_format(1234.123456789, $settings['scale'], $settings['decimal_separator'], $settings['thousand_separator']);
if ($settings['prefix_suffix']) {
$summary[] = t('Display with prefix and suffix.');
}
}
return implode('<br />', $summary);
}
/**
* Implements hook_field_formatter_view().
*/
function number_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
$element = array();
$settings = $display['settings'];
switch ($display['type']) {
case 'number_integer':
case 'number_decimal':
foreach ($items as $delta => $item) {
$output = number_format($item['value'], $settings['scale'], $settings['decimal_separator'], $settings['thousand_separator']);
if ($settings['prefix_suffix']) {
$prefixes = isset($instance['settings']['prefix']) ? array_map('field_filter_xss', explode('|', $instance['settings']['prefix'])) : array(
'',
);
$suffixes = isset($instance['settings']['suffix']) ? array_map('field_filter_xss', explode('|', $instance['settings']['suffix'])) : array(
'',
);
$prefix = count($prefixes) > 1 ? format_plural($item['value'], $prefixes[0], $prefixes[1]) : $prefixes[0];
$suffix = count($suffixes) > 1 ? format_plural($item['value'], $suffixes[0], $suffixes[1]) : $suffixes[0];
$output = $prefix . $output . $suffix;
}
$element[$delta] = array(
'#markup' => $output,
);
}
break;
case 'number_unformatted':
foreach ($items as $delta => $item) {
$element[$delta] = array(
'#markup' => $item['value'],
);
}
break;
}
return $element;
}
/**
* Implements hook_field_widget_info().
*/
function number_field_widget_info() {
return array(
'number' => array(
'label' => t('Text field'),
'field types' => array(
'number_integer',
'number_decimal',
'number_float',
),
),
);
}
/**
* Implements hook_field_widget_form().
*/
function number_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
$value = isset($items[$delta]['value']) ? $items[$delta]['value'] : '';
// Substitute the decimal separator.
if ($field['type'] == 'number_decimal' || $field['type'] == 'number_float') {
$value = strtr($value, '.', $field['settings']['decimal_separator']);
}
$element += array(
'#type' => 'textfield',
'#default_value' => $value,
// Allow a slightly larger size that the field length to allow for some
// configurations where all characters won't fit in input field.
'#size' => $field['type'] == 'number_decimal' ? $field['settings']['precision'] + 4 : 12,
// Allow two extra characters for signed values and decimal separator.
'#maxlength' => $field['type'] == 'number_decimal' ? $field['settings']['precision'] + 2 : 10,
// Extract the number type from the field type name for easier validation.
'#number_type' => str_replace('number_', '', $field['type']),
);
// Add prefix and suffix.
if (!empty($instance['settings']['prefix'])) {
$prefixes = explode('|', $instance['settings']['prefix']);
$element['#field_prefix'] = field_filter_xss(array_pop($prefixes));
}
if (!empty($instance['settings']['suffix'])) {
$suffixes = explode('|', $instance['settings']['suffix']);
$element['#field_suffix'] = field_filter_xss(array_pop($suffixes));
}
$element['#element_validate'][] = 'number_field_widget_validate';
return array(
'value' => $element,
);
}
/**
* FAPI validation of an individual number element.
*/
function number_field_widget_validate($element, &$form_state) {
$field = field_widget_field($element, $form_state);
$instance = field_widget_instance($element, $form_state);
$type = $element['#number_type'];
$value = $element['#value'];
// Reject invalid characters.
if (!empty($value)) {
switch ($type) {
case 'float':
case 'decimal':
$regexp = '@([^-0-9\\' . $field['settings']['decimal_separator'] . '])|(.-)@';
$message = t('Only numbers and the decimal separator (@separator) allowed in %field.', array(
'%field' => $instance['label'],
'@separator' => $field['settings']['decimal_separator'],
));
break;
case 'integer':
$regexp = '@([^-0-9])|(.-)@';
$message = t('Only numbers are allowed in %field.', array(
'%field' => $instance['label'],
));
break;
}
if ($value != preg_replace($regexp, '', $value)) {
form_error($element, $message);
}
else {
if ($type == 'decimal' || $type == 'float') {
// Verify that only one decimal separator exists in the field.
if (substr_count($value, $field['settings']['decimal_separator']) > 1) {
$message = t('%field: There should only be one decimal separator (@separator).', array(
'%field' => t($instance['label']),
'@separator' => $field['settings']['decimal_separator'],
));
form_error($element, $message);
}
else {
// Substitute the decimal separator; things should be fine.
$value = strtr($value, $field['settings']['decimal_separator'], '.');
}
}
form_set_value($element, $value, $form_state);
}
}
}
/**
* Implements hook_field_widget_error().
*/
function number_field_widget_error($element, $error, $form, &$form_state) {
form_error($element['value'], $error['message']);
}
Functions
Name | Description |
---|---|
number_field_formatter_info | Implements hook_field_formatter_info(). |
number_field_formatter_settings_form | Implements hook_field_formatter_settings_form(). |
number_field_formatter_settings_summary | Implements hook_field_formatter_settings_summary(). |
number_field_formatter_view | Implements hook_field_formatter_view(). |
number_field_info | Implements hook_field_info(). |
number_field_instance_settings_form | Implements hook_field_instance_settings_form(). |
number_field_is_empty | Implements hook_field_is_empty(). |
number_field_presave | Implements hook_field_presave(). |
number_field_settings_form | Implements hook_field_settings_form(). |
number_field_validate | Implements hook_field_validate(). |
number_field_widget_error | Implements hook_field_widget_error(). |
number_field_widget_form | Implements hook_field_widget_form(). |
number_field_widget_info | Implements hook_field_widget_info(). |
number_field_widget_validate | FAPI validation of an individual number element. |
number_help | Implements hook_help(). |