<?php
class FieldInfo {
protected $fieldMap;
protected $fieldsById = array();
protected $fieldIdsByName = array();
protected $loadedAllFields = FALSE;
protected $unknownFields = array();
protected $bundleInstances = array();
protected $loadedAllInstances = FALSE;
protected $emptyBundles = array();
protected $bundleExtraFields = array();
public function flush() {
$this->fieldMap = NULL;
$this->fieldsById = array();
$this->fieldIdsByName = array();
$this->loadedAllFields = FALSE;
$this->unknownFields = array();
$this->bundleInstances = array();
$this->loadedAllInstances = FALSE;
$this->emptyBundles = array();
$this->bundleExtraFields = array();
cache_clear_all('field_info:', 'cache_field', TRUE);
}
public function getFieldMap() {
if ($this->fieldMap !== NULL) {
return $this->fieldMap;
}
if ($cached = cache_get('field_info:field_map', 'cache_field')) {
$map = $cached->data;
$this->fieldMap = $map;
return $map;
}
$map = array();
$query = db_query('SELECT fc.type, fci.field_name, fci.entity_type, fci.bundle FROM {field_config_instance} fci INNER JOIN {field_config} fc ON fc.id = fci.field_id WHERE fc.active = 1 AND fc.storage_active = 1 AND fc.deleted = 0 AND fci.deleted = 0');
foreach ($query as $row) {
$map[$row->field_name]['bundles'][$row->entity_type][] = $row->bundle;
$map[$row->field_name]['type'] = $row->type;
}
$this->fieldMap = $map;
if (lock_acquire('field_info:field_map')) {
cache_set('field_info:field_map', $map, 'cache_field');
lock_release('field_info:field_map');
}
return $map;
}
public function getFields() {
if ($this->loadedAllFields) {
return $this->fieldsById;
}
if ($cached = cache_get('field_info:fields', 'cache_field')) {
$this->fieldsById = $cached->data;
}
else {
foreach (field_read_fields(array(), array(
'include_deleted' => TRUE,
)) as $field) {
$this->fieldsById[$field['id']] = $this
->prepareField($field);
}
if (lock_acquire('field_info:fields')) {
cache_set('field_info:fields', $this->fieldsById, 'cache_field');
lock_release('field_info:fields');
}
}
foreach ($this->fieldsById as $field) {
if (!$field['deleted']) {
$this->fieldIdsByName[$field['field_name']] = $field['id'];
}
}
$this->loadedAllFields = TRUE;
return $this->fieldsById;
}
public function getInstances($entity_type = NULL) {
if (!$this->loadedAllInstances) {
if ($cached = cache_get('field_info:instances', 'cache_field')) {
$this->bundleInstances = $cached->data;
}
else {
$this
->getFields();
foreach (field_info_bundles() as $existing_entity_type => $bundles) {
foreach ($bundles as $bundle => $bundle_info) {
$this->bundleInstances[$existing_entity_type][$bundle] = array();
}
}
foreach (field_read_instances() as $instance) {
$field = $this
->getField($instance['field_name']);
$instance = $this
->prepareInstance($instance, $field['type']);
$this->bundleInstances[$instance['entity_type']][$instance['bundle']][$instance['field_name']] = $instance;
}
if (lock_acquire('field_info:instances')) {
cache_set('field_info:instances', $this->bundleInstances, 'cache_field');
lock_release('field_info:instances');
}
}
$this->loadedAllInstances = TRUE;
}
if (isset($entity_type)) {
return isset($this->bundleInstances[$entity_type]) ? $this->bundleInstances[$entity_type] : array();
}
else {
return $this->bundleInstances;
}
}
public function getField($field_name) {
if (isset($this->fieldIdsByName[$field_name])) {
$field_id = $this->fieldIdsByName[$field_name];
return $this->fieldsById[$field_id];
}
if (isset($this->unknownFields[$field_name])) {
return;
}
if ($field = field_read_field($field_name)) {
$field = $this
->prepareField($field);
$this->fieldsById[$field['id']] = $field;
$this->fieldIdsByName[$field['field_name']] = $field['id'];
return $field;
}
else {
$this->unknownFields[$field_name] = TRUE;
}
}
public function getFieldById($field_id) {
if (isset($this->fieldsById[$field_id])) {
return $this->fieldsById[$field_id];
}
if (isset($this->unknownFields[$field_id])) {
return;
}
if ($fields = field_read_fields(array(
'id' => $field_id,
), array(
'include_deleted' => TRUE,
))) {
$field = current($fields);
$field = $this
->prepareField($field);
$this->fieldsById[$field['id']] = $field;
if (!$field['deleted']) {
$this->fieldIdsByName[$field['field_name']] = $field['id'];
}
return $field;
}
else {
$this->unknownFields[$field_id] = TRUE;
}
}
public function getBundleInstances($entity_type, $bundle) {
if (isset($this->bundleInstances[$entity_type][$bundle])) {
return $this->bundleInstances[$entity_type][$bundle];
}
if (isset($this->emptyBundles[$entity_type][$bundle])) {
return array();
}
if ($cached = cache_get("field_info:bundle:{$entity_type}:{$bundle}", 'cache_field')) {
$info = $cached->data;
foreach ($info['fields'] as $field) {
if (!isset($this->fieldsById[$field['id']])) {
$this->fieldsById[$field['id']] = $field;
if (!$field['deleted']) {
$this->fieldIdsByName[$field['field_name']] = $field['id'];
}
}
}
unset($info['fields']);
if ($info['instances']) {
$this->bundleInstances[$entity_type][$bundle] = $info['instances'];
}
else {
$this->emptyBundles[$entity_type][$bundle] = TRUE;
}
return $info['instances'];
}
$instances = array();
$params = array(
'entity_type' => $entity_type,
'bundle' => $bundle,
);
$fields = field_read_fields($params);
foreach (field_read_instances($params) as $instance) {
$field = $fields[$instance['field_name']];
$instance = $this
->prepareInstance($instance, $field['type']);
$instances[$field['field_name']] = $instance;
if (!isset($this->fieldsById[$field['id']])) {
$field = $this
->prepareField($field);
$this->fieldsById[$field['id']] = $field;
$this->fieldIdsByName[$field['field_name']] = $field['id'];
}
}
if ($instances) {
$this->bundleInstances[$entity_type][$bundle] = $instances;
}
else {
$this->emptyBundles[$entity_type][$bundle] = TRUE;
}
$cache = array(
'instances' => $instances,
'fields' => array(),
);
foreach ($instances as $instance) {
$cache['fields'][] = $this->fieldsById[$instance['field_id']];
}
if (lock_acquire("field_info:bundle:{$entity_type}:{$bundle}")) {
cache_set("field_info:bundle:{$entity_type}:{$bundle}", $cache, 'cache_field');
lock_release("field_info:bundle:{$entity_type}:{$bundle}");
}
return $instances;
}
public function getBundleExtraFields($entity_type, $bundle) {
if (isset($this->bundleExtraFields[$entity_type][$bundle])) {
return $this->bundleExtraFields[$entity_type][$bundle];
}
if ($cached = cache_get("field_info:bundle_extra:{$entity_type}:{$bundle}", 'cache_field')) {
$this->bundleExtraFields[$entity_type][$bundle] = $cached->data;
return $this->bundleExtraFields[$entity_type][$bundle];
}
$info = array();
$extra = module_invoke_all('field_extra_fields');
drupal_alter('field_extra_fields', $extra);
if (isset($extra[$entity_type][$bundle])) {
$info = $this
->prepareExtraFields($extra[$entity_type][$bundle], $entity_type, $bundle);
}
$this->bundleExtraFields[$entity_type][$bundle] = $info;
if (lock_acquire("field_info:bundle_extra:{$entity_type}:{$bundle}")) {
cache_set("field_info:bundle_extra:{$entity_type}:{$bundle}", $info, 'cache_field');
lock_release("field_info:bundle_extra:{$entity_type}:{$bundle}");
}
return $this->bundleExtraFields[$entity_type][$bundle];
}
public function prepareField($field) {
$field['settings'] += field_info_field_settings($field['type']);
$field['storage']['settings'] += field_info_storage_settings($field['storage']['type']);
$details = (array) module_invoke($field['storage']['module'], 'field_storage_details', $field);
drupal_alter('field_storage_details', $details, $field);
$field['storage']['details'] = $details;
$field['bundles'] = array();
if (!$field['deleted']) {
$map = $this
->getFieldMap();
if (isset($map[$field['field_name']])) {
$field['bundles'] = $map[$field['field_name']]['bundles'];
}
}
return $field;
}
public function prepareInstance($instance, $field_type) {
$instance['settings'] += field_info_instance_settings($field_type);
if (field_behaviors_widget('default value', $instance) == FIELD_BEHAVIOR_DEFAULT && !isset($instance['default_value'])) {
$instance['default_value'] = NULL;
}
$instance['widget'] = $this
->prepareInstanceWidget($instance['widget'], $field_type);
foreach ($instance['display'] as $view_mode => $display) {
$instance['display'][$view_mode] = $this
->prepareInstanceDisplay($display, $field_type);
}
$entity_info = entity_get_info($instance['entity_type']);
$view_modes = array_merge(array(
'default',
), array_keys($entity_info['view modes']));
$view_mode_settings = field_view_mode_settings($instance['entity_type'], $instance['bundle']);
foreach ($view_modes as $view_mode) {
if ($view_mode == 'default' || !empty($view_mode_settings[$view_mode]['custom_settings'])) {
if (!isset($instance['display'][$view_mode])) {
$instance['display'][$view_mode] = array(
'type' => 'hidden',
'label' => 'above',
'settings' => array(),
'weight' => 0,
);
}
}
}
return $instance;
}
public function prepareInstanceWidget($widget, $field_type) {
$field_type_info = field_info_field_types($field_type);
$widget += array(
'type' => $field_type_info['default_widget'],
'settings' => array(),
'weight' => 0,
);
$widget_type_info = field_info_widget_types($widget['type']);
if (!$widget_type_info) {
$widget['type'] = $field_type_info['default_widget'];
$widget_type_info = field_info_widget_types($widget['type']);
}
$widget['module'] = $widget_type_info['module'];
$widget['settings'] += field_info_widget_settings($widget['type']);
return $widget;
}
public function prepareInstanceDisplay($display, $field_type) {
$field_type_info = field_info_field_types($field_type);
$display += array(
'label' => 'above',
'settings' => array(),
'weight' => 0,
);
if (empty($display['type'])) {
$display['type'] = $field_type_info['default_formatter'];
}
if ($display['type'] != 'hidden') {
$formatter_type_info = field_info_formatter_types($display['type']);
if (!$formatter_type_info) {
$display['type'] = $field_type_info['default_formatter'];
$formatter_type_info = field_info_formatter_types($display['type']);
}
$display['module'] = $formatter_type_info['module'];
$display['settings'] += field_info_formatter_settings($display['type']);
}
return $display;
}
public function prepareExtraFields($extra_fields, $entity_type, $bundle) {
$entity_type_info = entity_get_info($entity_type);
$bundle_settings = field_bundle_settings($entity_type, $bundle);
$extra_fields += array(
'form' => array(),
'display' => array(),
);
$result = array();
foreach ($extra_fields['form'] as $name => $field_data) {
$settings = isset($bundle_settings['extra_fields']['form'][$name]) ? $bundle_settings['extra_fields']['form'][$name] : array();
if (isset($settings['weight'])) {
$field_data['weight'] = $settings['weight'];
}
$result['form'][$name] = $field_data;
}
$data = $extra_fields['display'];
foreach ($extra_fields['display'] as $name => $field_data) {
$settings = isset($bundle_settings['extra_fields']['display'][$name]) ? $bundle_settings['extra_fields']['display'][$name] : array();
$view_modes = array_merge(array(
'default',
), array_keys($entity_type_info['view modes']));
foreach ($view_modes as $view_mode) {
if (isset($settings[$view_mode])) {
$field_data['display'][$view_mode] = $settings[$view_mode];
}
else {
$field_data['display'][$view_mode] = array(
'weight' => $field_data['weight'],
'visible' => TRUE,
);
}
}
unset($field_data['weight']);
$result['display'][$name] = $field_data;
}
return $result;
}
}