420 lines
15 KiB
Plaintext
Executable File
420 lines
15 KiB
Plaintext
Executable File
<?php
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/**
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* @file
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* Defines numeric field types.
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*/
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/**
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* Implements hook_help().
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*/
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function number_help($path, $arg) {
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switch ($path) {
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case 'admin/help#number':
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$output = '';
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$output .= '<h3>' . t('About') . '</h3>';
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$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>';
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return $output;
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}
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}
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/**
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* Implements hook_field_info().
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*/
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function number_field_info() {
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return array(
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'number_integer' => array(
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'label' => t('Integer'),
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'description' => t('This field stores a number in the database as an integer.'),
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'instance_settings' => array('min' => '', 'max' => '', 'prefix' => '', 'suffix' => ''),
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'default_widget' => 'number',
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'default_formatter' => 'number_integer',
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),
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'number_decimal' => array(
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'label' => t('Decimal'),
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'description' => t('This field stores a number in the database in a fixed decimal format.'),
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'settings' => array('precision' => 10, 'scale' => 2, 'decimal_separator' => '.'),
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'instance_settings' => array('min' => '', 'max' => '', 'prefix' => '', 'suffix' => ''),
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'default_widget' => 'number',
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'default_formatter' => 'number_decimal',
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),
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'number_float' => array(
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'label' => t('Float'),
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'description' => t('This field stores a number in the database in a floating point format.'),
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'settings' => array('decimal_separator' => '.'),
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'instance_settings' => array('min' => '', 'max' => '', 'prefix' => '', 'suffix' => ''),
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'default_widget' => 'number',
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'default_formatter' => 'number_decimal',
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),
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);
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}
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/**
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* Implements hook_field_settings_form().
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*/
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function number_field_settings_form($field, $instance, $has_data) {
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$settings = $field['settings'];
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$form = array();
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if ($field['type'] == 'number_decimal') {
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$form['precision'] = array(
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'#type' => 'select',
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'#title' => t('Precision'),
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'#options' => drupal_map_assoc(range(10, 32)),
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'#default_value' => $settings['precision'],
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'#description' => t('The total number of digits to store in the database, including those to the right of the decimal.'),
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'#disabled' => $has_data,
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);
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$form['scale'] = array(
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'#type' => 'select',
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'#title' => t('Scale'),
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'#options' => drupal_map_assoc(range(0, 10)),
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'#default_value' => $settings['scale'],
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'#description' => t('The number of digits to the right of the decimal.'),
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'#disabled' => $has_data,
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);
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}
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if ($field['type'] == 'number_decimal' || $field['type'] == 'number_float') {
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$form['decimal_separator'] = array(
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'#type' => 'select',
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'#title' => t('Decimal marker'),
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'#options' => array('.' => t('Decimal point'), ',' => t('Comma')),
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'#default_value' => $settings['decimal_separator'],
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'#description' => t('The character users will input to mark the decimal point in forms.'),
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);
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}
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return $form;
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}
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/**
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* Implements hook_field_instance_settings_form().
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*/
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function number_field_instance_settings_form($field, $instance) {
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$settings = $instance['settings'];
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$form['min'] = array(
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'#type' => 'textfield',
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'#title' => t('Minimum'),
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'#default_value' => $settings['min'],
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'#description' => t('The minimum value that should be allowed in this field. Leave blank for no minimum.'),
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'#element_validate' => array('element_validate_number'),
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);
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$form['max'] = array(
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'#type' => 'textfield',
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'#title' => t('Maximum'),
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'#default_value' => $settings['max'],
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'#description' => t('The maximum value that should be allowed in this field. Leave blank for no maximum.'),
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'#element_validate' => array('element_validate_number'),
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);
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$form['prefix'] = array(
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'#type' => 'textfield',
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'#title' => t('Prefix'),
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'#default_value' => $settings['prefix'],
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'#size' => 60,
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'#description' => t("Define a string that should be prefixed to the value, like '$ ' or '€ '. Leave blank for none. Separate singular and plural values with a pipe ('pound|pounds')."),
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);
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$form['suffix'] = array(
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'#type' => 'textfield',
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'#title' => t('Suffix'),
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'#default_value' => $settings['suffix'],
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'#size' => 60,
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'#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')."),
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);
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return $form;
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}
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/**
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* Implements hook_field_validate().
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*
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* Possible error codes:
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* - 'number_min': The value is less than the allowed minimum value.
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* - 'number_max': The value is greater than the allowed maximum value.
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*/
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function number_field_validate($entity_type, $entity, $field, $instance, $langcode, $items, &$errors) {
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foreach ($items as $delta => $item) {
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if ($item['value'] != '') {
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if (is_numeric($instance['settings']['min']) && $item['value'] < $instance['settings']['min']) {
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$errors[$field['field_name']][$langcode][$delta][] = array(
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'error' => 'number_min',
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'message' => t('%name: the value may be no less than %min.', array('%name' => $instance['label'], '%min' => $instance['settings']['min'])),
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);
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}
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if (is_numeric($instance['settings']['max']) && $item['value'] > $instance['settings']['max']) {
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$errors[$field['field_name']][$langcode][$delta][] = array(
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'error' => 'number_max',
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'message' => t('%name: the value may be no greater than %max.', array('%name' => $instance['label'], '%max' => $instance['settings']['max'])),
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);
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}
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}
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}
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}
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/**
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* Implements hook_field_presave().
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*/
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function number_field_presave($entity_type, $entity, $field, $instance, $langcode, &$items) {
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if ($field['type'] == 'number_decimal') {
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// Let PHP round the value to ensure consistent behavior across storage
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// backends.
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foreach ($items as $delta => $item) {
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if (isset($item['value'])) {
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$items[$delta]['value'] = round($item['value'], $field['settings']['scale']);
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}
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}
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}
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}
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/**
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* Implements hook_field_is_empty().
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*/
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function number_field_is_empty($item, $field) {
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if (empty($item['value']) && (string) $item['value'] !== '0') {
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return TRUE;
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}
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return FALSE;
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}
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/**
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* Implements hook_field_formatter_info().
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*/
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function number_field_formatter_info() {
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return array(
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// The 'Default' formatter is different for integer fields on the one hand,
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// and for decimal and float fields on the other hand, in order to be able
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// to use different default values for the settings.
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'number_integer' => array(
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'label' => t('Default'),
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'field types' => array('number_integer'),
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'settings' => array(
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'thousand_separator' => '',
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// The 'decimal_separator' and 'scale' settings are not configurable
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// through the UI, and will therefore keep their default values. They
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// are only present so that the 'number_integer' and 'number_decimal'
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// formatters can use the same code.
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'decimal_separator' => '.',
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'scale' => 0,
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'prefix_suffix' => TRUE,
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),
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),
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'number_decimal' => array(
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'label' => t('Default'),
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'field types' => array('number_decimal', 'number_float'),
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'settings' => array(
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'thousand_separator' => '',
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'decimal_separator' => '.',
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'scale' => 2,
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'prefix_suffix' => TRUE,
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),
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),
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'number_unformatted' => array(
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'label' => t('Unformatted'),
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'field types' => array('number_integer', 'number_decimal', 'number_float'),
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),
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);
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}
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/**
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* Implements hook_field_formatter_settings_form().
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*/
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function number_field_formatter_settings_form($field, $instance, $view_mode, $form, &$form_state) {
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$display = $instance['display'][$view_mode];
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$settings = $display['settings'];
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if ($display['type'] == 'number_decimal' || $display['type'] == 'number_integer') {
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$options = array(
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'' => t('<none>'),
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'.' => t('Decimal point'),
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',' => t('Comma'),
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' ' => t('Space'),
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);
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$element['thousand_separator'] = array(
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'#type' => 'select',
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'#title' => t('Thousand marker'),
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'#options' => $options,
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'#default_value' => $settings['thousand_separator'],
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);
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if ($display['type'] == 'number_decimal') {
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$element['decimal_separator'] = array(
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'#type' => 'select',
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'#title' => t('Decimal marker'),
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'#options' => array('.' => t('Decimal point'), ',' => t('Comma')),
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'#default_value' => $settings['decimal_separator'],
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);
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$element['scale'] = array(
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'#type' => 'select',
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'#title' => t('Scale'),
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'#options' => drupal_map_assoc(range(0, 10)),
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'#default_value' => $settings['scale'],
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'#description' => t('The number of digits to the right of the decimal.'),
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);
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}
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$element['prefix_suffix'] = array(
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'#type' => 'checkbox',
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'#title' => t('Display prefix and suffix.'),
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'#default_value' => $settings['prefix_suffix'],
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);
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}
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return $element;
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}
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/**
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* Implements hook_field_formatter_settings_summary().
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*/
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function number_field_formatter_settings_summary($field, $instance, $view_mode) {
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$display = $instance['display'][$view_mode];
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$settings = $display['settings'];
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$summary = array();
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if ($display['type'] == 'number_decimal' || $display['type'] == 'number_integer') {
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$summary[] = number_format(1234.1234567890, $settings['scale'], $settings['decimal_separator'], $settings['thousand_separator']);
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if ($settings['prefix_suffix']) {
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$summary[] = t('Display with prefix and suffix.');
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}
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}
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return implode('<br />', $summary);
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}
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/**
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* Implements hook_field_formatter_view().
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*/
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function number_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
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$element = array();
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$settings = $display['settings'];
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switch ($display['type']) {
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case 'number_integer':
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case 'number_decimal':
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foreach ($items as $delta => $item) {
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$output = number_format($item['value'], $settings['scale'], $settings['decimal_separator'], $settings['thousand_separator']);
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if ($settings['prefix_suffix']) {
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$prefixes = isset($instance['settings']['prefix']) ? array_map('field_filter_xss', explode('|', $instance['settings']['prefix'])) : array('');
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$suffixes = isset($instance['settings']['suffix']) ? array_map('field_filter_xss', explode('|', $instance['settings']['suffix'])) : array('');
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$prefix = (count($prefixes) > 1) ? format_plural($item['value'], $prefixes[0], $prefixes[1]) : $prefixes[0];
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$suffix = (count($suffixes) > 1) ? format_plural($item['value'], $suffixes[0], $suffixes[1]) : $suffixes[0];
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$output = $prefix . $output . $suffix;
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}
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$element[$delta] = array('#markup' => $output);
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}
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break;
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case 'number_unformatted':
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foreach ($items as $delta => $item) {
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$element[$delta] = array('#markup' => $item['value']);
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}
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break;
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}
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return $element;
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}
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/**
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* Implements hook_field_widget_info().
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*/
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function number_field_widget_info() {
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return array(
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'number' => array(
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'label' => t('Text field'),
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'field types' => array('number_integer', 'number_decimal', 'number_float'),
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),
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);
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}
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/**
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* Implements hook_field_widget_form().
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*/
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function number_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
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$value = isset($items[$delta]['value']) ? $items[$delta]['value'] : '';
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// Substitute the decimal separator.
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if ($field['type'] == 'number_decimal' || $field['type'] == 'number_float') {
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$value = strtr($value, '.', $field['settings']['decimal_separator']);
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}
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$element += array(
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'#type' => 'textfield',
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'#default_value' => $value,
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// Allow a slightly larger size that the field length to allow for some
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// configurations where all characters won't fit in input field.
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'#size' => $field['type'] == 'number_decimal' ? $field['settings']['precision'] + 4 : 12,
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// Allow two extra characters for signed values and decimal separator.
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'#maxlength' => $field['type'] == 'number_decimal' ? $field['settings']['precision'] + 2 : 10,
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// Extract the number type from the field type name for easier validation.
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'#number_type' => str_replace('number_', '', $field['type']),
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);
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// Add prefix and suffix.
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if (!empty($instance['settings']['prefix'])) {
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$prefixes = explode('|', $instance['settings']['prefix']);
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$element['#field_prefix'] = field_filter_xss(array_pop($prefixes));
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}
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if (!empty($instance['settings']['suffix'])) {
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$suffixes = explode('|', $instance['settings']['suffix']);
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$element['#field_suffix'] = field_filter_xss(array_pop($suffixes));
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}
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$element['#element_validate'][] = 'number_field_widget_validate';
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return array('value' => $element);
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}
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/**
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* FAPI validation of an individual number element.
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*/
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function number_field_widget_validate($element, &$form_state) {
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$field = field_widget_field($element, $form_state);
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$instance = field_widget_instance($element, $form_state);
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$type = $element['#number_type'];
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$value = $element['#value'];
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// Reject invalid characters.
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if (!empty($value)) {
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switch ($type) {
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case 'float':
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case 'decimal':
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$regexp = '@([^-0-9\\' . $field['settings']['decimal_separator'] . '])|(.-)@';
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$message = t('Only numbers and the decimal separator (@separator) allowed in %field.', array('%field' => $instance['label'], '@separator' => $field['settings']['decimal_separator']));
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break;
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case 'integer':
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$regexp = '@([^-0-9])|(.-)@';
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$message = t('Only numbers are allowed in %field.', array('%field' => $instance['label']));
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break;
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}
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if ($value != preg_replace($regexp, '', $value)) {
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form_error($element, $message);
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}
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else {
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if ($type == 'decimal' || $type == 'float') {
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// Verify that only one decimal separator exists in the field.
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if (substr_count($value, $field['settings']['decimal_separator']) > 1) {
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$message = t('%field: There should only be one decimal separator (@separator).',
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array(
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'%field' => t($instance['label']),
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'@separator' => $field['settings']['decimal_separator'],
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)
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);
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form_error($element, $message);
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}
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else {
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// Substitute the decimal separator; things should be fine.
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$value = strtr($value, $field['settings']['decimal_separator'], '.');
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}
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}
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form_set_value($element, $value, $form_state);
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}
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}
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}
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/**
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* Implements hook_field_widget_error().
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*/
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function number_field_widget_error($element, $error, $form, &$form_state) {
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form_error($element['value'], $error['message']);
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}
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