drupal/core/modules/field_ui/field_ui.admin.inc

1138 lines
40 KiB
PHP

<?php
/**
* @file
* Administrative interface for custom field type creation.
*/
use Drupal\field\FieldInstance;
use Drupal\field_ui\FieldOverview;
use Drupal\field_ui\DisplayOverview;
/**
* Page callback: Lists all defined fields for quick reference.
*
* @see field_ui_menu()
*/
function field_ui_fields_list() {
$instances = field_info_instances();
$field_types = field_info_field_types();
$bundles = field_info_bundles();
$modules = system_rebuild_module_data();
$header = array(
t('Field name'),
array('data' => t('Field type'), 'class' => array(RESPONSIVE_PRIORITY_MEDIUM)),
t('Used in'),
);
$rows = array();
foreach ($instances as $entity_type => $type_bundles) {
foreach ($type_bundles as $bundle => $bundle_instances) {
foreach ($bundle_instances as $field_name => $instance) {
$field = field_info_field($field_name);
// Initialize the row if we encounter the field for the first time.
if (!isset($rows[$field_name])) {
$rows[$field_name]['class'] = $field['locked'] ? array('menu-disabled') : array('');
$rows[$field_name]['data'][0] = $field['locked'] ? t('@field_name (Locked)', array('@field_name' => $field_name)) : $field_name;
$module_name = $field_types[$field['type']]['module'];
$rows[$field_name]['data'][1] = $field_types[$field['type']]['label'] . ' ' . t('(module: !module)', array('!module' => $modules[$module_name]->info['name']));
}
// Add the current instance.
$admin_path = _field_ui_bundle_admin_path($entity_type, $bundle);
$rows[$field_name]['data'][2][] = $admin_path ? l($bundles[$entity_type][$bundle]['label'], $admin_path . '/fields') : $bundles[$entity_type][$bundle]['label'];
}
}
}
foreach ($rows as $field_name => $cell) {
$rows[$field_name]['data'][2] = implode(', ', $cell['data'][2]);
}
if (empty($rows)) {
$output = t('No fields have been defined yet.');
}
else {
// Sort rows by field name.
ksort($rows);
$output = theme('table', array('header' => $header, 'rows' => $rows));
}
return $output;
}
/**
* Displays a message listing the inactive fields of a given bundle.
*/
function field_ui_inactive_message($entity_type, $bundle) {
$inactive_instances = field_ui_inactive_instances($entity_type, $bundle);
if (!empty($inactive_instances)) {
$field_types = field_info_field_types();
$widget_types = field_info_widget_types();
foreach ($inactive_instances as $field_name => $instance) {
$list[] = t('%field (@field_name) field requires the %widget_type widget provided by %widget_module module', array(
'%field' => $instance['label'],
'@field_name' => $instance['field_name'],
'%widget_type' => isset($widget_types[$instance['widget']['type']]) ? $widget_types[$instance['widget']['type']]['label'] : $instance['widget']['type'],
'%widget_module' => $instance['widget']['module'],
));
}
drupal_set_message(t('Inactive fields are not shown unless their providing modules are enabled. The following fields are not enabled: !list', array('!list' => theme('item_list', array('items' => $list)))), 'error');
}
}
/**
* Determines the rendering order of an array representing a tree.
*
* Callback for array_reduce() within field_ui_table_pre_render().
*/
function _field_ui_reduce_order($array, $a) {
$array = !isset($array) ? array() : $array;
if ($a['name']) {
$array[] = $a['name'];
}
if (!empty($a['children'])) {
uasort($a['children'], 'drupal_sort_weight');
$array = array_merge($array, array_reduce($a['children'], '_field_ui_reduce_order'));
}
return $array;
}
/**
* Returns the region to which a row in the 'Manage fields' screen belongs.
*
* This function is used as a #region_callback in
* Drupal\field_ui\DisplayOverview::form(). It is called during
* field_ui_table_pre_render().
*/
function field_ui_field_overview_row_region($row) {
switch ($row['#row_type']) {
case 'field':
case 'extra_field':
return 'content';
case 'add_new_field':
// If no input in 'label', assume the row has not been dragged out of the
// 'add new' section.
return (!empty($row['label']['#value']) ? 'content' : 'hidden');
}
}
/**
* Returns the region to which a row in the 'Manage display' screen belongs.
*
* This function is used as a #region_callback in
* Drupal\field_ui\FieldOverview::form(), and is called during
* field_ui_table_pre_render().
*/
function field_ui_display_overview_row_region($row) {
switch ($row['#row_type']) {
case 'field':
case 'extra_field':
return ($row['format']['type']['#value'] == 'hidden' ? 'hidden' : 'content');
}
}
/**
* Render API callback: Performs pre-render tasks on field_ui_table elements.
*
* This function is assigned as a #pre_render callback in
* field_ui_element_info().
*
* @see drupal_render().
*/
function field_ui_table_pre_render($elements) {
$js_settings = array();
// For each region, build the tree structure from the weight and parenting
// data contained in the flat form structure, to determine row order and
// indentation.
$regions = $elements['#regions'];
$tree = array('' => array('name' => '', 'children' => array()));
$trees = array_fill_keys(array_keys($regions), $tree);
$parents = array();
$list = drupal_map_assoc(element_children($elements));
// Iterate on rows until we can build a known tree path for all of them.
while ($list) {
foreach ($list as $name) {
$row = &$elements[$name];
$parent = $row['parent_wrapper']['parent']['#value'];
// Proceed if parent is known.
if (empty($parent) || isset($parents[$parent])) {
// Grab parent, and remove the row from the next iteration.
$parents[$name] = $parent ? array_merge($parents[$parent], array($parent)) : array();
unset($list[$name]);
// Determine the region for the row.
$function = $row['#region_callback'];
$region_name = $function($row);
// Add the element in the tree.
$target = &$trees[$region_name][''];
foreach ($parents[$name] as $key) {
$target = &$target['children'][$key];
}
$target['children'][$name] = array('name' => $name, 'weight' => $row['weight']['#value']);
// Add tabledrag indentation to the first row cell.
if ($depth = count($parents[$name])) {
$children = element_children($row);
$cell = current($children);
$row[$cell]['#prefix'] = theme('indentation', array('size' => $depth)) . (isset($row[$cell]['#prefix']) ? $row[$cell]['#prefix'] : '');
}
// Add row id and associate JS settings.
$id = drupal_html_class($name);
$row['#attributes']['id'] = $id;
if (isset($row['#js_settings'])) {
$row['#js_settings'] += array(
'rowHandler' => $row['#row_type'],
'name' => $name,
'region' => $region_name,
);
$js_settings[$id] = $row['#js_settings'];
}
}
}
}
// Determine rendering order from the tree structure.
foreach ($regions as $region_name => $region) {
$elements['#regions'][$region_name]['rows_order'] = array_reduce($trees[$region_name], '_field_ui_reduce_order');
}
$elements['#attached']['js'][] = array(
'type' => 'setting',
'data' => array('fieldUIRowsData' => $js_settings),
);
return $elements;
}
/**
* Returns HTML for Field UI overview tables.
*
* @param $variables
* An associative array containing:
* - elements: An associative array containing a Form API structure to be
* rendered as a table.
*
* @ingroup themeable
*/
function theme_field_ui_table($variables) {
$elements = $variables['elements'];
$table = array();
$js_settings = array();
// Add table headers and attributes.
foreach (array('header', 'attributes') as $key) {
if (isset($elements["#$key"])) {
$table[$key] = $elements["#$key"];
}
}
// Determine the colspan to use for region rows, by checking the number of
// columns in the headers.
$columns_count = 0;
foreach ($table['header'] as $header) {
$columns_count += (is_array($header) && isset($header['colspan']) ? $header['colspan'] : 1);
}
// Render rows, region by region.
foreach ($elements['#regions'] as $region_name => $region) {
$region_name_class = drupal_html_class($region_name);
// Add region rows.
if (isset($region['title']) && empty($region['invisible'])) {
$table['rows'][] = array(
'class' => array('region-title', 'region-' . $region_name_class . '-title'),
'no_striping' => TRUE,
'data' => array(
array('data' => $region['title'], 'colspan' => $columns_count),
),
);
}
if (isset($region['message'])) {
$class = (empty($region['rows_order']) ? 'region-empty' : 'region-populated');
$table['rows'][] = array(
'class' => array('region-message', 'region-' . $region_name_class . '-message', $class),
'no_striping' => TRUE,
'data' => array(
array('data' => $region['message'], 'colspan' => $columns_count),
),
);
}
// Add form rows, in the order determined at pre-render time.
foreach ($region['rows_order'] as $name) {
$element = $elements[$name];
$row = array('data' => array());
if (isset($element['#attributes'])) {
$row += $element['#attributes'];
}
// Render children as table cells.
foreach (element_children($element) as $cell_key) {
$child = &$element[$cell_key];
// Do not render a cell for children of #type 'value'.
if (!(isset($child['#type']) && $child['#type'] == 'value')) {
$cell = array('data' => drupal_render($child));
if (isset($child['#cell_attributes'])) {
$cell += $child['#cell_attributes'];
}
$row['data'][] = $cell;
}
}
$table['rows'][] = $row;
}
}
return theme('table', $table);
}
/**
* Returns the built and processed 'Manage fields' form of a bundle.
*
* The resulting form allows fields and pseudo-fields to be re-ordered.
*
* @param string $entity_type
* The entity type for the fieldable entity.
* @param string $bundle
* The bundle for the fieldable entity.
*
* @return
* The processed form for the given entity type and bundle.
*
* @see field_ui_menu()
* @see field_ui_field_overview_form_validate()
* @see field_ui_field_overview_form_submit()
* @ingroup forms
*/
function field_ui_field_overview($entity_type, $bundle) {
$bundle = field_extract_bundle($entity_type, $bundle);
field_ui_inactive_message($entity_type, $bundle);
$field_overview = new FieldOverview($entity_type, $bundle);
$form_state = array();
$form_state['build_info']['callback'] = array($field_overview, 'form');
$form_state['build_info']['args'] = array($entity_type, $bundle);
return drupal_build_form('field_ui_field_overview_form', $form_state);
}
/**
* Render API callback: Checks if a field machine name is taken.
*
* @param $value
* The machine name, not prefixed with 'field_'.
*
* @return
* Whether or not the field machine name is taken.
*/
function _field_ui_field_name_exists($value) {
// Prefix with 'field_'.
$field_name = 'field_' . $value;
// We need to check inactive fields as well, so we can't use
// field_info_fields().
return (bool) field_read_fields(array('field_name' => $field_name), array('include_inactive' => TRUE));
}
/**
* Returns the built and processed 'Manage display' form of a bundle.
*
* The resulting form allows fields and pseudo-fields to be re-ordered.
*
* @param string $entity_type
* The entity type for the fieldable entity.
* @param string $bundle
* The bundle for the fieldable entity.
* @param string $view_mode
* The view mode for the fieldable entity.
*
* @return
* The processed form for the given entity type and bundle.
*
* @see field_ui_menu()
* @see field_ui_display_overview_multistep_submit()
* @see Drupal\field_ui\DisplayOverview::submit()
* @ingroup forms
*/
function field_ui_display_overview($entity_type, $bundle, $view_mode) {
$bundle = field_extract_bundle($entity_type, $bundle);
field_ui_inactive_message($entity_type, $bundle);
$display_overview = new DisplayOverview($entity_type, $bundle, $view_mode);
$form_state = array();
$form_state['build_info']['callback'] = array($display_overview, 'form');
$form_state['build_info']['args'] = array($entity_type, $bundle, $view_mode);
return drupal_build_form('field_ui_display_overview_form', $form_state);
}
/**
* Populates display settings for a new view mode from the default view mode.
*
* When an administrator decides to use custom display settings for a view mode,
* that view mode needs to be initialized with the display settings for the
* 'default' view mode, which it was previously using. This helper function
* adds the new custom display settings to this bundle's instances, and saves
* them. It also modifies the passed-in $settings array, which the caller can
* then save using field_bundle_settings().
*
* @param $entity_type
* The bundle's entity type.
* @param $bundle
* The bundle whose view mode is being customized.
* @param $view_mode
* The view mode that the administrator has set to use custom settings.
* @param $settings
* An associative array of bundle settings, as expected by
* field_bundle_settings().
*
* @see Drupal\field_ui\DisplayOverview::submit().
* @see field_bundle_settings()
*/
function _field_ui_add_default_view_mode_settings($entity_type, $bundle, $view_mode, &$settings) {
// Update display settings for field instances.
$instances = field_read_instances(array('entity_type' => $entity_type, 'bundle' => $bundle));
foreach ($instances as $instance) {
// If this field instance has display settings defined for this view mode,
// respect those settings.
if (!isset($instance['display'][$view_mode])) {
// The instance doesn't specify anything for this view mode, so use the
// default display settings.
$instance['display'][$view_mode] = $instance['display']['default'];
field_update_instance($instance);
}
}
// Update display settings for 'extra fields'.
foreach (array_keys($settings['extra_fields']['display']) as $name) {
if (!isset($settings['extra_fields']['display'][$name][$view_mode])) {
$settings['extra_fields']['display'][$name][$view_mode] = $settings['extra_fields']['display'][$name]['default'];
}
}
}
/**
* Returns an array of field_type options.
*/
function field_ui_field_type_options() {
$options = &drupal_static(__FUNCTION__);
if (!isset($options)) {
$options = array();
$field_types = field_info_field_types();
$field_type_options = array();
foreach ($field_types as $name => $field_type) {
// Skip field types which have no widget types, or should not be add via
// uesr interface.
if (field_ui_widget_type_options($name) && empty($field_type['no_ui'])) {
$options[$name] = $field_type['label'];
}
}
asort($options);
}
return $options;
}
/**
* Returns an array of widget type options for a field type.
*
* If no field type is provided, returns a nested array of all widget types,
* keyed by field type human name.
*/
function field_ui_widget_type_options($field_type = NULL, $by_label = FALSE) {
$options = &drupal_static(__FUNCTION__);
if (!isset($options)) {
$options = array();
$field_types = field_info_field_types();
$widget_types = field_info_widget_types();
uasort($widget_types, 'drupal_sort_weight');
foreach ($widget_types as $name => $widget_type) {
foreach ($widget_type['field_types'] as $widget_field_type) {
// Check that the field type exists.
if (isset($field_types[$widget_field_type])) {
$options[$widget_field_type][$name] = $widget_type['label'];
}
}
}
}
if (isset($field_type)) {
return !empty($options[$field_type]) ? $options[$field_type] : array();
}
if ($by_label) {
$field_types = field_info_field_types();
$options_by_label = array();
foreach ($options as $field_type => $widgets) {
$options_by_label[$field_types[$field_type]['label']] = $widgets;
}
return $options_by_label;
}
return $options;
}
/**
* Returns an array of formatter options for a field type.
*
* If no field type is provided, returns a nested array of all formatters, keyed
* by field type.
*/
function field_ui_formatter_options($field_type = NULL) {
$options = &drupal_static(__FUNCTION__);
if (!isset($options)) {
$field_types = field_info_field_types();
$options = array();
foreach (field_info_formatter_types() as $name => $formatter) {
foreach ($formatter['field_types'] as $formatter_field_type) {
// Check that the field type exists.
if (isset($field_types[$formatter_field_type])) {
$options[$formatter_field_type][$name] = $formatter['label'];
}
}
}
}
if ($field_type) {
return !empty($options[$field_type]) ? $options[$field_type] : array();
}
return $options;
}
/**
* Returns an array of existing fields to be added to a bundle.
*/
function field_ui_existing_field_options($entity_type, $bundle) {
$info = array();
$field_types = field_info_field_types();
foreach (field_info_instances() as $existing_entity_type => $bundles) {
foreach ($bundles as $existing_bundle => $instances) {
// No need to look in the current bundle.
if (!($existing_bundle == $bundle && $existing_entity_type == $entity_type)) {
foreach ($instances as $instance) {
$field = field_info_field($instance['field_name']);
// Don't show
// - locked fields,
// - fields already in the current bundle,
// - fields that cannot be added to the entity type,
// - fields that that shoud not be added via user interface.
if (empty($field['locked'])
&& !field_info_instance($entity_type, $field['field_name'], $bundle)
&& (empty($field['entity_types']) || in_array($entity_type, $field['entity_types']))
&& empty($field_types[$field['type']]['no_ui'])) {
$info[$instance['field_name']] = array(
'type' => $field['type'],
'type_label' => $field_types[$field['type']]['label'],
'field' => $field['field_name'],
'label' => t($instance['label']),
'widget_type' => $instance['widget']['type'],
);
}
}
}
}
}
return $info;
}
/**
* Form constructor for the field settings edit page.
*
* @see field_ui_menu()
* @see field_ui_settings_form_submit()
* @ingroups forms
*/
function field_ui_field_settings_form($form, &$form_state, $instance) {
$bundle = $instance['bundle'];
$entity_type = $instance['entity_type'];
$field = field_info_field($instance['field_name']);
drupal_set_title($instance['label']);
$description = '<p>' . t('These settings apply to the %field field everywhere it is used. These settings impact the way that data is stored in the database and cannot be changed once data has been created.', array('%field' => $instance['label'])) . '</p>';
// Create a form structure for the field values.
$form['field'] = array(
'#type' => 'fieldset',
'#title' => t('Field settings'),
'#description' => $description,
'#tree' => TRUE,
);
// See if data already exists for this field.
// If so, prevent changes to the field settings.
$has_data = field_has_data($field);
if ($has_data) {
$form['field']['#description'] = '<div class="messages error">' . t('There is data for this field in the database. The field settings can no longer be changed.') . '</div>' . $form['field']['#description'];
}
// Build the non-configurable field values.
$form['field']['field_name'] = array('#type' => 'value', '#value' => $field['field_name']);
$form['field']['type'] = array('#type' => 'value', '#value' => $field['type']);
$form['field']['module'] = array('#type' => 'value', '#value' => $field['module']);
$form['field']['active'] = array('#type' => 'value', '#value' => $field['active']);
// Add settings provided by the field module. The field module is
// responsible for not returning settings that cannot be changed if
// the field already has data.
$form['field']['settings'] = array();
$additions = module_invoke($field['module'], 'field_settings_form', $field, $instance, $has_data);
if (is_array($additions)) {
$form['field']['settings'] = $additions;
}
if (empty($form['field']['settings'])) {
$form['field']['settings'] = array(
'#markup' => t('%field has no field settings.', array('%field' => $instance['label'])),
);
}
$form['#entity_type'] = $entity_type;
$form['#bundle'] = $bundle;
$form['actions'] = array('#type' => 'actions');
$form['actions']['submit'] = array('#type' => 'submit', '#value' => t('Save field settings'));
return $form;
}
/**
* Form submission handler for field_ui_field_settings_form().
*/
function field_ui_field_settings_form_submit($form, &$form_state) {
$form_values = $form_state['values'];
$field_values = $form_values['field'];
// Merge incoming form values into the existing field.
$field = field_info_field($field_values['field_name']);
$entity_type = $form['#entity_type'];
$bundle = $form['#bundle'];
$instance = field_info_instance($entity_type, $field['field_name'], $bundle);
// Update the field.
$field = array_merge($field, $field_values);
try {
field_update_field($field);
drupal_set_message(t('Updated field %label field settings.', array('%label' => $instance['label'])));
$form_state['redirect'] = field_ui_next_destination($entity_type, $bundle);
}
catch (Exception $e) {
drupal_set_message(t('Attempt to update field %label failed: %message.', array('%label' => $instance['label'], '%message' => $e->getMessage())), 'error');
}
}
/**
* Form constructor for the widget selection form.
*
* @see field_ui_menu()
* @see field_ui_widget_type_form_submit()
* @ingroup forms
*/
function field_ui_widget_type_form($form, &$form_state, FieldInstance $instance) {
drupal_set_title($instance['label']);
$bundle = $instance['bundle'];
$entity_type = $instance['entity_type'];
$field_name = $instance['field_name'];
$field = field_info_field($field_name);
$field_type = field_info_field_types($field['type']);
$widget_definition = $instance->getWidget()->getDefinition();
$bundles = field_info_bundles();
$bundle_label = $bundles[$entity_type][$bundle]['label'];
$form = array(
'#bundle' => $bundle,
'#entity_type' => $entity_type,
'#field_name' => $field_name,
);
$form['basic'] = array(
'#type' => 'fieldset',
'#title' => t('Change widget'),
);
$form['basic']['widget_type'] = array(
'#type' => 'select',
'#title' => t('Widget type'),
'#required' => TRUE,
'#options' => field_ui_widget_type_options($field['type']),
'#default_value' => $instance->getWidget()->getPluginId(),
'#description' => t('The type of form element you would like to present to the user when creating this field in the %type type.', array('%type' => $bundle_label)),
);
$form['actions'] = array('#type' => 'actions');
$form['actions']['submit'] = array('#type' => 'submit', '#value' => t('Continue'));
$form['#validate'] = array();
$form['#submit'] = array('field_ui_widget_type_form_submit');
return $form;
}
/**
* Form submission handler for field_ui_widget_type_form().
*/
function field_ui_widget_type_form_submit($form, &$form_state) {
$form_values = $form_state['values'];
$bundle = $form['#bundle'];
$entity_type = $form['#entity_type'];
$field_name = $form['#field_name'];
// Retrieve the stored instance settings to merge with the incoming values.
$instance = field_read_instance($entity_type, $field_name, $bundle);
// Set the right module information.
$widget_type = field_info_widget_types($form_values['widget_type']);
$widget_module = $widget_type['module'];
$instance['widget']['type'] = $form_values['widget_type'];
$instance['widget']['module'] = $widget_module;
try {
field_update_instance($instance);
drupal_set_message(t('Changed the widget for field %label.', array('%label' => $instance['label'])));
}
catch (Exception $e) {
drupal_set_message(t('There was a problem changing the widget for field %label.', array('%label' => $instance['label'])), 'error');
}
$form_state['redirect'] = field_ui_next_destination($entity_type, $bundle);
}
/**
* Form constructor for removing a field instance from a bundle.
*
* @see field_ui_menu()
* @see field_ui_field_delete_form_submit()
* @ingroup forms
*/
function field_ui_field_delete_form($form, &$form_state, $instance) {
$bundle = $instance['bundle'];
$entity_type = $instance['entity_type'];
$field = field_info_field($instance['field_name']);
$admin_path = _field_ui_bundle_admin_path($entity_type, $bundle);
$form['entity_type'] = array('#type' => 'value', '#value' => $entity_type);
$form['bundle'] = array('#type' => 'value', '#value' => $bundle);
$form['field_name'] = array('#type' => 'value', '#value' => $field['field_name']);
$output = confirm_form($form,
t('Are you sure you want to delete the field %field?', array('%field' => $instance['label'])),
$admin_path . '/fields',
t('If you have any content left in this field, it will be lost. This action cannot be undone.'),
t('Delete'), t('Cancel'),
'confirm'
);
if ($field['locked']) {
unset($output['actions']['submit']);
$output['description']['#markup'] = t('This field is <strong>locked</strong> and cannot be deleted.');
}
return $output;
}
/**
* Form submission handler for field_ui_field_delete_form().
*
* Removes a field instance from a bundle. If the field has no more instances,
* it will be marked as deleted too.
*/
function field_ui_field_delete_form_submit($form, &$form_state) {
$form_values = $form_state['values'];
$field_name = $form_values['field_name'];
$bundle = $form_values['bundle'];
$entity_type = $form_values['entity_type'];
$field = field_info_field($field_name);
$instance = field_info_instance($entity_type, $field_name, $bundle);
$bundles = field_info_bundles();
$bundle_label = $bundles[$entity_type][$bundle]['label'];
if (!empty($bundle) && $field && !$field['locked'] && $form_values['confirm']) {
field_delete_instance($instance);
drupal_set_message(t('The field %field has been deleted from the %type content type.', array('%field' => $instance['label'], '%type' => $bundle_label)));
}
else {
drupal_set_message(t('There was a problem removing the %field from the %type content type.', array('%field' => $instance['label'], '%type' => $bundle_label)), 'error');
}
$admin_path = _field_ui_bundle_admin_path($entity_type, $bundle);
$form_state['redirect'] = field_ui_get_destinations(array($admin_path . '/fields'));
// Fields are purged on cron. However field module prevents disabling modules
// when field types they provided are used in a field until it is fully
// purged. In the case that a field has minimal or no content, a single call
// to field_purge_batch() will remove it from the system. Call this with a
// low batch limit to avoid administrators having to wait for cron runs when
// removing instances that meet this criteria.
field_purge_batch(10);
}
/**
* Form constructor for the field instance settings form.
*
* @see field_ui_menu()
* @see field_ui_field_edit_form_validate()
* @see field_ui_field_edit_form_submit()
* @see field_ui_field_edit_form_delete_submit()
* @ingroup forms
*/
function field_ui_field_edit_form($form, &$form_state, $instance) {
$bundle = $instance['bundle'];
$entity_type = $instance['entity_type'];
$field = field_info_field($instance['field_name']);
drupal_set_title($instance['label']);
$form['#field'] = $field;
$form['#instance'] = $instance;
// Create an arbitrary entity object (used by the 'default value' widget).
$ids = (object) array('entity_type' => $instance['entity_type'], 'bundle' => $instance['bundle'], 'entity_id' => NULL);
$form['#entity'] = _field_create_entity_from_ids($ids);
$form['#entity']->field_ui_default_value = TRUE;
if (!empty($field['locked'])) {
$form['locked'] = array(
'#markup' => t('The field %field is locked and cannot be edited.', array('%field' => $instance['label'])),
);
return $form;
}
$field_type = field_info_field_types($field['type']);
$widget_type = field_info_widget_types($instance['widget']['type']);
$bundles = field_info_bundles();
// Create a form structure for the instance values.
$form['instance'] = array(
'#tree' => TRUE,
'#type' => 'fieldset',
'#title' => t('%type settings', array('%type' => $bundles[$entity_type][$bundle]['label'])),
'#description' => t('These settings apply only to the %field field when used in the %type type.', array(
'%field' => $instance['label'],
'%type' => $bundles[$entity_type][$bundle]['label'],
)),
// Ensure field_ui_field_edit_instance_pre_render() gets called in addition
// to, not instead of, the #pre_render function(s) needed by all fieldsets.
'#pre_render' => array_merge(array('field_ui_field_edit_instance_pre_render'), element_info_property('fieldset', '#pre_render', array())),
);
// Build the non-configurable instance values.
$form['instance']['field_name'] = array(
'#type' => 'value',
'#value' => $instance['field_name'],
);
$form['instance']['entity_type'] = array(
'#type' => 'value',
'#value' => $entity_type,
);
$form['instance']['bundle'] = array(
'#type' => 'value',
'#value' => $bundle,
);
$form['instance']['widget']['weight'] = array(
'#type' => 'value',
'#value' => !empty($instance['widget']['weight']) ? $instance['widget']['weight'] : 0,
);
// Build the configurable instance values.
$form['instance']['label'] = array(
'#type' => 'textfield',
'#title' => t('Label'),
'#default_value' => !empty($instance['label']) ? $instance['label'] : $field['field_name'],
'#required' => TRUE,
'#weight' => -20,
);
$form['instance']['description'] = array(
'#type' => 'textarea',
'#title' => t('Help text'),
'#default_value' => !empty($instance['description']) ? $instance['description'] : '',
'#rows' => 5,
'#description' => t('Instructions to present to the user below this field on the editing form.<br />Allowed HTML tags: @tags', array('@tags' => _field_filter_xss_display_allowed_tags())) . '<br />' . t('This field supports tokens.'),
'#weight' => -10,
);
$form['instance']['required'] = array(
'#type' => 'checkbox',
'#title' => t('Required field'),
'#default_value' => !empty($instance['required']),
'#weight' => -5,
);
// Build the widget component of the instance.
$form['instance']['widget']['type'] = array(
'#type' => 'value',
'#value' => $instance['widget']['type'],
);
$form['instance']['widget']['module'] = array(
'#type' => 'value',
'#value' => $widget_type['module'],
);
$form['instance']['widget']['active'] = array(
'#type' => 'value',
'#value' => !empty($field['instance']['widget']['active']) ? 1 : 0,
);
// Add additional field instance settings from the field module.
$additions = module_invoke($field['module'], 'field_instance_settings_form', $field, $instance);
if (is_array($additions)) {
$form['instance']['settings'] = $additions;
}
// Add widget settings for the widget type.
$additions = $instance->getWidget()->settingsForm($form, $form_state);
$form['instance']['widget']['settings'] = $additions ? $additions : array('#type' => 'value', '#value' => array());
// Add handling for default value if not provided by any other module.
if (field_behaviors_widget('default_value', $instance) == FIELD_BEHAVIOR_DEFAULT && empty($instance['default_value_function'])) {
$form['instance']['default_value_widget'] = field_ui_default_value_widget($field, $instance, $form, $form_state);
}
$has_data = field_has_data($field);
if ($has_data) {
$description = '<p>' . t('These settings apply to the %field field everywhere it is used. Because the field already has data, some settings can no longer be changed.', array('%field' => $instance['label'])) . '</p>';
}
else {
$description = '<p>' . t('These settings apply to the %field field everywhere it is used.', array('%field' => $instance['label'])) . '</p>';
}
// Create a form structure for the field values.
$form['field'] = array(
'#type' => 'fieldset',
'#collapsible' => TRUE,
'#collapsed' => TRUE,
'#title' => t('Global settings'),
'#description' => $description,
'#tree' => TRUE,
);
// Build the configurable field values.
$description = t('Maximum number of values users can enter for this field.');
if (field_behaviors_widget('multiple_values', $instance) == FIELD_BEHAVIOR_DEFAULT) {
$description .= '<br/>' . t("'Unlimited' will provide an 'Add more' button so the users can add as many values as they like.");
}
$form['field']['cardinality'] = array(
'#type' => 'select',
'#title' => t('Number of values'),
'#options' => array(FIELD_CARDINALITY_UNLIMITED => t('Unlimited')) + drupal_map_assoc(range(1, 10)),
'#default_value' => $field['cardinality'],
'#description' => $description,
);
// Add additional field type settings. The field type module is
// responsible for not returning settings that cannot be changed if
// the field already has data.
$additions = module_invoke($field['module'], 'field_settings_form', $field, $instance, $has_data);
if (is_array($additions)) {
$form['field']['settings'] = $additions;
}
$form['actions'] = array('#type' => 'actions');
$form['actions']['submit'] = array(
'#type' => 'submit',
'#value' => t('Save settings')
);
$form['actions']['delete'] = array(
'#type' => 'submit',
'#value' => t('Delete field'),
'#submit' => array('field_ui_field_edit_form_delete_submit'),
);
return $form;
}
/**
* Form submission handler for 'Delete' button in field_ui_field_edit_form().
*/
function field_ui_field_edit_form_delete_submit($form, &$form_state) {
$destination = array();
if (isset($_GET['destination'])) {
$destination = drupal_get_destination();
unset($_GET['destination']);
}
$instance = $form['#instance'];
$form_state['redirect'] = array('admin/structure/types/manage/' . $instance['bundle'] . '/fields/' . $instance['field_name'] . '/delete', array('query' => $destination));
}
/**
* Render API callback: Merges instance, widget and other settings.
*
* Combines the instance, widget, and other settings into a single fieldset so
* that elements within each group can be shown at different weights as if they
* all had the same parent.
*
* This function is assigned as a #pre_render callback in
* field_ui_field_edit_form().
*/
function field_ui_field_edit_instance_pre_render($element) {
// Merge the widget settings into the main form.
if (isset($element['widget']['settings'])) {
foreach (element_children($element['widget']['settings']) as $key) {
$element['widget_' . $key] = $element['widget']['settings'][$key];
}
unset($element['widget']['settings']);
}
// Merge the instance settings into the main form.
if (isset($element['settings'])) {
foreach (element_children($element['settings']) as $key) {
$element['instance_' . $key] = $element['settings'][$key];
}
unset($element['settings']);
}
return $element;
}
/**
* Builds the default value fieldset for a given field instance.
*/
function field_ui_default_value_widget($field, $instance, &$form, &$form_state) {
$field_name = $field['field_name'];
$entity = $form['#entity'];
$element = array(
'#type' => 'fieldset',
'#title' => t('Default value'),
'#collapsible' => FALSE,
'#tree' => TRUE,
'#description' => t('The default value for this field, used when creating new content.'),
// Stick to an empty 'parents' on this form in order not to breaks widgets
// that do not use field_widget_[field|instance]() and still access
// $form_state['field'] directly.
'#parents' => array(),
);
// Adjust the instance definition used for the form element. We want a
// non-required input and no description.
$instance['required'] = FALSE;
$instance['description'] = '';
// Insert the widget. Since we do not use the "official" instance definition,
// the whole flow cannot use field_invoke_method().
$items = (array) $instance['default_value'];
$element += $instance->getWidget()->form($entity, LANGUAGE_NOT_SPECIFIED, $items, $element, $form_state);
return $element;
}
/**
* Form validation handler for field_ui_field_edit_form().
*
* @see field_ui_field_edit_form_submit().
*/
function field_ui_field_edit_form_validate($form, &$form_state) {
// Take the incoming values as the $instance definition, so that the 'default
// value' gets validated using the instance settings being submitted.
$instance = $form['#instance'];
$field_name = $instance['field_name'];
$entity = $form['#entity'];
if (isset($form['instance']['default_value_widget'])) {
$element = $form['instance']['default_value_widget'];
// Extract the 'default value'.
$items = array();
$instance->getWidget()->submit($entity, LANGUAGE_NOT_SPECIFIED, $items, $element, $form_state);
// Grab the field definition from $form_state.
$field_state = field_form_get_state($element['#parents'], $field_name, LANGUAGE_NOT_SPECIFIED, $form_state);
$field = $field_state['field'];
// Validate the value.
$errors = array();
$function = $field['module'] . '_field_validate';
if (function_exists($function)) {
$function(NULL, NULL, $field, $instance, LANGUAGE_NOT_SPECIFIED, $items, $errors);
}
// Report errors.
if (isset($errors[$field_name][LANGUAGE_NOT_SPECIFIED])) {
// Store reported errors in $form_state.
$field_state['errors'] = $errors[$field_name][LANGUAGE_NOT_SPECIFIED];
field_form_set_state($element['#parents'], $field_name, LANGUAGE_NOT_SPECIFIED, $form_state, $field_state);
// Assign reported errors to the correct form element.
$instance->getWidget()->flagErrors($entity, LANGUAGE_NOT_SPECIFIED, $items, $element, $form_state);
}
}
}
/**
* Form submission handler for field_ui_field_edit_form().
*
* @see field_ui_field_edit_form_validate().
*/
function field_ui_field_edit_form_submit($form, &$form_state) {
$instance = $form['#instance'];
$field = $form['#field'];
$entity = $form['#entity'];
// Merge incoming values into the field.
$field = array_merge($field, $form_state['values']['field']);
try {
field_update_field($field);
}
catch (Exception $e) {
drupal_set_message(t('Attempt to update field %label failed: %message.', array('%label' => $instance['label'], '%message' => $e->getMessage())), 'error');
return;
}
// Handle the default value.
if (isset($form['instance']['default_value_widget'])) {
$element = $form['instance']['default_value_widget'];
// Extract field values.
$items = array();
$instance->getWidget()->submit($entity, LANGUAGE_NOT_SPECIFIED, $items, $element, $form_state);
$instance['default_value'] = $items ? $items : NULL;
}
// Merge incoming values into the instance.
foreach ($form_state['values']['instance'] as $key => $value) {
$instance[$key] = $value;
}
field_update_instance($instance);
drupal_set_message(t('Saved %label configuration.', array('%label' => $instance['label'])));
$form_state['redirect'] = field_ui_next_destination($instance['entity_type'], $instance['bundle']);
}
/**
* Extracts next redirect path from an array of multiple destinations.
*
* @see field_ui_next_destination()
*/
function field_ui_get_destinations($destinations) {
$path = array_shift($destinations);
$options = drupal_parse_url($path);
if ($destinations) {
$options['query']['destinations'] = $destinations;
}
return array($options['path'], $options);
}
/**
* Returns the next redirect path in a multipage sequence.
*/
function field_ui_next_destination($entity_type, $bundle) {
$destinations = !empty($_REQUEST['destinations']) ? $_REQUEST['destinations'] : array();
if (!empty($destinations)) {
unset($_REQUEST['destinations']);
return field_ui_get_destinations($destinations);
}
$admin_path = _field_ui_bundle_admin_path($entity_type, $bundle);
return $admin_path . '/fields';
}