type]) && !isset($relationships['referred'][$type->type])) {
drupal_set_message(t('Could not find relations for this content type.'), 'warning');
return '';
}
$referrer_types = isset($relationships['referred'][$type->type]) ? $relationships['referred'][$type->type]['referrer_types'] : array();
$referred_types = isset($relationships['referrer'][$type->type]) ? $relationships['referrer'][$type->type]['referred_types'] : array();
$nodereference_fields = isset($relationships['referrer'][$type->type]['fields']) ? $relationships['referrer'][$type->type]['fields'] : array();
$destination = drupal_get_destination();
$content_types = content_types();
$type_url_str = str_replace('_', '-', $type->type);
$current_self_referred = FALSE;
$referrer_entities = array();
$referred_entities = array();
$current_entity_fields = array();
foreach ($referrer_types as $referrer_type => $field_names) {
if ($referrer_type == $type->type) {
$current_self_referred = TRUE;
continue;
}
$referrer_url_str = str_replace('_', '-', $referrer_type);
$type_label = noderelationships_get_localized_content_type_name($referrer_type);
$type_label = ($type->type == $referrer_type ? check_plain($type_label) : l($type_label, 'admin/content/node-type/'. $referrer_url_str .'/relationships'));
$type_items = array();
foreach ($field_names as $field_name) {
$type_items[] = array(
'data' => l($content_types[$referrer_type]['fields'][$field_name]['widget']['label'], 'admin/content/node-type/'. $referrer_url_str .'/fields/'. $field_name, array('query' => $destination)),
'attributes' => array('class' => 'noderelationships-erd-noderef'),
);
}
$referrer_entities[] = array('label' => $type_label, 'items' => $type_items);
}
if (!empty($referred_types[$type->type])) {
foreach ($content_types[$type->type]['fields'] as $field_name => $field) {
if (in_array($field_name, $referred_types[$type->type])) {
unset($nodereference_fields[$field_name]);
$current_entity_fields[] = array(
'data' => l($field['widget']['label'], 'admin/content/node-type/'. $type_url_str .'/fields/'. $field_name, array('query' => $destination)),
'attributes' => array('class' => 'noderelationships-erd-noderef'),
);
}
}
}
foreach ($referred_types as $referred_type => $field_names) {
if ($referred_type == $type->type) {
continue;
}
$referred_url_str = str_replace('_', '-', $referred_type);
$type_label = noderelationships_get_localized_content_type_name($referred_type);
$type_label = ($type->type == $referred_type ? check_plain($type_label) : l($type_label, 'admin/content/node-type/'. $referred_url_str .'/relationships'));
$type_items = array();
foreach ($field_names as $field_name) {
unset($nodereference_fields[$field_name]);
$type_items[] = array(
'data' => l($content_types[$type->type]['fields'][$field_name]['widget']['label'], 'admin/content/node-type/'. $type_url_str .'/fields/'. $field_name, array('query' => $destination)),
'attributes' => array('class' => 'noderelationships-erd-noderef'),
);
}
$referred_entities[] = array('label' => $type_label, 'items' => $type_items);
}
foreach ($nodereference_fields as $field_name => $types) {
$field = $content_types[$type->type]['fields'][$field_name];
$current_entity_fields[] = array(
'data' => l($field['widget']['label'], 'admin/content/node-type/'. $type_url_str .'/fields/'. $field_name, array('query' => $destination)),
'attributes' => array('class' => 'noderelationships-erd-noderef-any'),
);
}
$diagram = '';
if (!empty($referrer_entities)) {
$diagram .= theme('noderelationships_erd_group', 'referrer', $referrer_entities);
$diagram .= theme('noderelationships_erd_relation', t('Referred from'));
}
$current_label = array('data' => check_plain($type->name));
if ($current_self_referred) {
$current_label['attributes'] = array('class' => 'noderelationships-erd-self');
}
$diagram .= theme('noderelationships_erd_current', $current_label, $current_entity_fields);
if (!empty($referred_entities)) {
$diagram .= theme('noderelationships_erd_relation', t('Refers to'));
$diagram .= theme('noderelationships_erd_group', 'referred', $referred_entities);
}
$admin_help_text = t('This panel displays an Entity Relationship Diagram (ERD) relative to the content type %type.', array(
'%type' => $type->name,
));
$output = theme('noderelationships_admin_help', $admin_help_text);
$output .= theme('noderelationships_erd_diagram', $diagram);
return $output;
}
/**
* Render the Entity Relationship Diagram (ERD).
*/
function theme_noderelationships_erd_diagram($diagram) {
$module_path = drupal_get_path('module', 'noderelationships');
drupal_add_css($module_path .'/css/noderelationships.admin_erd.css');
drupal_add_js($module_path .'/js/jquery.corner.js');
drupal_add_js($module_path .'/js/admin.erd.js');
$output = ''."\n";
$output .= $diagram;
$output .= '
'."\n";
return $output;
}
/**
* Render a group of entities in the ERD.
*/
function theme_noderelationships_erd_group($group_type, $entities) {
$output = '';
foreach ($entities as $entity) {
$output .= theme('noderelationships_erd_entity', $entity['label'], $entity['items']);
}
$output .= '
'."\n";
return $output;
}
/**
* Render the current entity in the ERD.
*/
function theme_noderelationships_erd_current($label, $items = NULL) {
$output = '';
$output .= theme('noderelationships_erd_entity', $label, $items);
$output .= '
'."\n";
return $output;
}
/**
* Render an entity in the ERD.
*/
function theme_noderelationships_erd_entity($label, $items = NULL) {
$output = '';
if (!is_array($label)) {
$label = array('data' => $label);
}
$output .= '
';
$output .= ''. $label['data'] .'';
$output .= '
';
$output .= '
';
if (empty($items)) {
$output .= ' ';
}
else {
foreach ($items as $key => $item) {
if (!is_array($item)) {
$item = array('data' => $item);
}
$items[$key] = '
'. $item['data'] .'';
}
$output .= ''. implode('', $items) .'
';
}
$output .= '';
$output .= '
';
$output .= '
'. $label .'
';
$output .= '
'. $field_cell .'
',
);
// Related types.
$items = array();
if (empty($referenceable_types)) {
$type_cell = t('Any');
$type_class = 'noderelationships-cell-referred';
$items[] = ''. $type_cell .'
';
}
else {
foreach ($referenceable_types as $referred_type) {
$type_url_str = str_replace('_', '-', $referred_type);
$type_cell = noderelationships_get_localized_content_type_name($referred_type);
if ($form['#noderelationships-type'] == $referred_type) {
$type_cell = check_plain($type_cell);
$type_class = 'noderelationships-cell-current-self';
}
else {
$type_cell = l($type_cell, 'admin/content/node-type/'. $type_url_str .'/relationships/backref');
$type_class = 'noderelationships-cell-referred';
}
$items[] = ''. $type_cell .'
';
}
}
$cells[] = array(
'data' => implode('', $items),
);
// Required.
$cells[] = array(
'data' => ($field['required'] ? t('Yes') : t('No')),
'class' => 'noderelationships-cell-center',
);
// Cardinality.
$cells[] = array(
'data' => (empty($field['multiple']) ? 1 : ($field['multiple'] == 1 ? t('Unlimited') : (int)$field['multiple'])),
'class' => 'noderelationships-cell-center',
);
// Extra settings for node reference fields are available only for the
// nodereference_autocomplete widget.
$extra_features = array();
if (isset($form['search_and_reference_view'][$field_name])) {
// Search and reference view.
$extra_features[] = drupal_render($form['search_and_reference_view'][$field_name]);
// View reference in new window.
$extra_features[] = drupal_render($form['view_in_new_window'][$field_name]);
// Edit reference.
$extra_features[] = drupal_render($form['edit_reference'][$field_name]);
// Create and reference.
$extra_features[] = drupal_render($form['create_and_reference'][$field_name]);
// Translate and reference.
if (isset($form['translate_and_reference'])) {
$extra_features[] = drupal_render($form['translate_and_reference'][$field_name]);
}
}
if (empty($extra_features)) {
$extra_features[] = t('These options are available only for node reference autocomplete widgets.');
}
$cells[] = array(
'data' => implode('', $extra_features),
'class' => 'noderelationships-cell-options',
);
$rows[] = array('data' => $cells);
}
$output .= theme('table', $headers, $rows, array('id' => 'noderelationships-settings-table'));
$output .= drupal_render($form);
return $output;
}
/**
* Back reference settings form.
*/
function noderelationships_admin_settings_backref(&$form_state, $type) {
$form = array();
$referrer_types = noderelationships_get_referrer_types($type->type);
// If this type does not have relations, then we're done here.
if (empty($referrer_types)) {
drupal_set_message(t('Could not find content types referring to %type.', array('%type' => $type->name)), 'warning');
return $form;
}
$admin_help_text = t('This panel displays Node Reference fields that may refer to nodes of type %type.
These fields generate back references that you can easily display using a view on several regions (Page, Tab or Fields).
You can modify and/or clone (recommended) the default view should you need to add more fields, filters or change any other option to suit your needs.
To enable these back references just drag them to the region of your choice.
Back references assigned to the Page and Tab regions can be reordered from this panel.
Back references assigned to the Fields region can be reordered from the "Manage fields" panel.', array(
'%type' => $type->name,
));
$form['help'] = array(
'#type' => 'markup',
'#value' => theme('noderelationships_admin_help', $admin_help_text),
);
// Obtain back reference settings for this type.
$backref_settings = noderelationships_settings_load($type->type, 'backref');
// Prepare a list of all available relations.
$available_relations = array();
foreach ($referrer_types as $referrer_type => $field_names) {
foreach ($field_names as $field_name) {
$available_relations[$referrer_type .':'. $field_name] = array(
'referrer_type' => $referrer_type,
'field_name' => $field_name,
);
}
}
// Build the list of all relations assigned to active regions.
$form['#noderelationships-regions'] = array();
foreach (array_keys(noderelationships_get_back_reference_regions()) as $region) {
$form['#noderelationships-regions'][$region] = array();
if (isset($backref_settings['regions'][$region])) {
foreach ($backref_settings['regions'][$region] as $relation_key => $relation_info) {
if (isset($available_relations[$relation_key])) {
$referrer_type = $available_relations[$relation_key]['referrer_type'];
$field_name = $available_relations[$relation_key]['field_name'];
$form['#noderelationships-regions'][$region][$relation_key] = array(
'referrer_type' => $referrer_type,
'field_name' => $field_name,
'field' => content_fields($field_name, $referrer_type),
'weight' => $relation_info['weight'],
'back_reference_view' => $relation_info['back_reference_view'],
);
unset($available_relations[$relation_key]);
}
}
}
}
// Assign remaining relations to the disabled region.
$form['#noderelationships-regions']['none'] = array();
foreach ($available_relations as $relation_key => $available_relation) {
$referrer_type = $available_relation['referrer_type'];
$field_name = $available_relation['field_name'];
$form['#noderelationships-regions']['none'][$relation_key] = array(
'referrer_type' => $referrer_type,
'field_name' => $field_name,
'field' => content_fields($field_name, $referrer_type),
'weight' => 0,
'back_reference_view' => '',
);
}
unset($available_relations);
$options_back_reference_region = array('none' => '<'. t('none') .'>') + noderelationships_get_back_reference_regions();
$options_back_reference_view = noderelationships_get_views('backref');
$form['weight'] = array(
'#tree' => TRUE,
);
$form['back_reference_region'] = array(
'#tree' => TRUE,
);
$form['back_reference_view'] = array(
'#tree' => TRUE,
);
$form['#noderelationships-type'] = $type->type;
foreach ($form['#noderelationships-regions'] as $region => $region_relations) {
foreach ($region_relations as $relation_key => $relation_info) {
$referrer_type = $relation_info['referrer_type'];
$field_name = $relation_info['field_name'];
$field = $relation_info['field'];
$form['weight'][$relation_key] = array(
'#type' => 'textfield',
'#default_value' => (isset($relation_info['weight']) ? $relation_info['weight'] : 0),
'#size' => 3,
'#attributes' => array('class' => 'noderelationships-weight noderelationships-weight-'. $region),
);
$form['back_reference_region'][$relation_key] = array(
'#type' => 'select',
'#default_value' => $region,
'#options' => $options_back_reference_region,
'#attributes' => array('class' => 'noderelationships-region-select noderelationships-region-'. $region),
);
$form['back_reference_view'][$relation_key] = array(
'#type' => 'select',
'#default_value' => (isset($relation_info['back_reference_view']) ? $relation_info['back_reference_view'] : ''),
'#options' => $options_back_reference_view,
);
}
}
$form['submit'] = array(
'#type' => 'submit',
'#value' => t('Save settings'),
);
return $form;
}
/**
* Submit handler for the back reference settings form.
*/
function noderelationships_admin_settings_backref_submit($form, &$form_state) {
$form_values = $form_state['values'];
$settings = noderelationships_settings_load($form['#noderelationships-type']);
// Move form values to settings array.
$settings['backref'] = array('regions' => array());
foreach (array_keys(noderelationships_get_back_reference_regions()) as $region) {
foreach ($form_values['back_reference_region'] as $relation_key => $relation_region) {
if ($region == $relation_region) {
if (!isset($settings['backref']['regions'][$region])) {
$settings['backref']['regions'][$region] = array();
}
$settings['backref']['regions'][$region][$relation_key] = array(
'weight' => $form_values['weight'][$relation_key],
'back_reference_view' => $form_values['back_reference_view'][$relation_key],
);
}
}
}
// Update settings and clear caches if changes exist.
if (noderelationships_settings_save($form['#noderelationships-type'], $settings)) {
noderelationships_cache_clear_all();
}
drupal_set_message(t('The settings have been saved.'));
}
/**
* Render the back reference settings form.
*/
function theme_noderelationships_admin_settings_backref($form) {
if (!isset($form['help'])) {
return drupal_render($form);
}
$output = drupal_render($form['help']);
$module_path = drupal_get_path('module', 'noderelationships');
drupal_add_css($module_path .'/css/noderelationships.admin_settings.css');
drupal_add_js($module_path .'/js/admin.drag.js');
drupal_add_js($module_path .'/js/admin.view_settings.js');
$js_settings = array(
'mode' => 'backref',
'viewSettingsUrl' => url('admin/build/views/edit'),
'defaultViewName' => NODERELATIONSHIPS_BACKREF_VIEW_NAME,
);
drupal_add_js(array('nodeRelationships' => $js_settings), 'setting');
jquery_ui_add(array('effects.transfer'));
$destination = drupal_get_destination();
$headers = array(
array('data' => ''),
array('data' => t('Weight'), 'class' => 'noderelationships-cell-weight'),
array('data' => t('Referrer type/field')),
array('data' => t('Required'), 'class' => 'noderelationships-cell-center'),
array('data' => t('Cardinality'), 'class' => 'noderelationships-cell-center'),
array('data' => t('Back reference view')),
array('data' => t('Back reference field')),
array('data' => t('Region'), 'class' => 'noderelationships-cell-region'),
);
$headers_count = count($headers);
$backref_fields = noderelationships_get_backreferences($form['#noderelationships-type']);
$regions = noderelationships_get_back_reference_regions() + array('none' => t('Disabled'));
$rows = array();
foreach ($form['#noderelationships-regions'] as $region => $region_relations) {
$rows[] = array(
'data' => array(array(
'data' => $regions[$region],
'class' => 'region',
'colspan' => $headers_count,
)),
'class' => 'region region-'. $region,
);
$rows[] = array(
'data' => array(array(
'data' => ''. t('No items in this region') .'',
'colspan' => $headers_count,
)),
'class' => 'region-message region-'. $region .'-message region-'. (empty($region_relations) ? 'empty' : 'populated'),
);
drupal_add_tabledrag('noderelationships-settings-table', 'match', 'sibling', 'noderelationships-region-select', 'noderelationships-region-'. $region);
drupal_add_tabledrag('noderelationships-settings-table', 'order', 'sibling', 'noderelationships-weight', 'noderelationships-weight-'. $region);
foreach ($region_relations as $relation_key => $relation_info) {
$field_name = $relation_info['field_name'];
$field = $relation_info['field'];
$cells = array();
// Drag'n'drop handle, Weight and Back reference region.
$cells[] = array('data' => '');
$cells[] = array(
'data' => drupal_render($form['weight'][$relation_key]),
'class' => 'noderelationships-cell-weight',
);
// Referrer type.
$type_url_str = str_replace('_', '-', $field['type_name']);
$type_cell = noderelationships_get_localized_content_type_name($field['type_name']);
if ($form['#noderelationships-type'] == $field['type_name']) {
$type_cell = check_plain($type_cell);
$type_class = 'noderelationships-cell-current-self';
}
else {
$type_cell = l($type_cell, 'admin/content/node-type/'. $type_url_str .'/relationships/noderef');
$type_class = 'noderelationships-cell-referrer';
}
// Referrer field.
$type_url_str = str_replace('_', '-', $field['type_name']);
$field_cell = l($field['widget']['label'], 'admin/content/node-type/'. $type_url_str .'/fields/'. $field_name, array('query' => $destination));
$field_class = ($form['#noderelationships-type'] == $field['type_name'] ? 'noderelationships-cell-noderef-self' : 'noderelationships-cell-noderef');
// Referrer type/field.
$cells[] = array(
'data' => ''. $type_cell .' / '. $field_cell .'
',
);
// Required.
$cells[] = array(
'data' => ($field['required'] ? t('Yes') : t('No')),
'class' => 'noderelationships-cell-center',
);
// Cardinality.
$cells[] = array(
'data' => (empty($field['multiple']) ? 1 : ($field['multiple'] == 1 ? t('Unlimited') : (int)$field['multiple'])),
'class' => 'noderelationships-cell-center',
);
// Back reference view.
$cells[] = array(
'data' => drupal_render($form['back_reference_view'][$relation_key]),
'class' => 'noderelationships-cell-options',
);
// Back reference region.
$cells[] = array(
'data' => drupal_render($form['back_reference_region'][$relation_key]),
'class' => 'noderelationships-cell-region',
);
// Back reference field.
$backref_field_name = noderelationships_cck_backref_build_name($form['#noderelationships-type'], $field['type_name'], $field_name);
if (isset($backref_fields[$backref_field_name])) {
$type_url_str = str_replace('_', '-', $form['#noderelationships-type']);
$backref_label = $backref_fields[$backref_field_name]['widget_label'];
$backref_cell = l($backref_label, 'admin/content/node-type/'. $type_url_str .'/fields/'. $backref_field_name, array('query' => $destination));
}
else {
$backref_label = t('Back references from @referrer-label in @referrer-type', array(
'@referrer-label' => $field['widget']['label'],
'@referrer-type' => noderelationships_get_localized_content_type_name($field['type_name']),
));
$backref_cell = ''. $backref_label .'';
}
$cells[] = array(
'data' => $backref_cell,
'class' => 'noderelationships-cell-field',
);
$rows[] = array('data' => $cells, 'class' => 'draggable noderelationships-region-'. $region);
}
}
$output .= theme('table', $headers, $rows, array('id' => 'noderelationships-settings-table'));
$output .= drupal_render($form);
return $output;
}
/**
* Render a help block.
*/
function theme_noderelationships_admin_help($message) {
return ''. $message .'
';
}
/**
* Alter variables used for content-admin-field-overview-form.tpl.php.
*/
function _noderelationships_preprocess_content_field_overview_form(&$vars) {
// Alter row information for back reference fields.
foreach ($vars['rows'] as $index => $row) {
if ($row->row_type == 'field' && isset($vars['form'][$row->field_name]['field']['#value'])) {
$current_field = $vars['form'][$row->field_name]['field']['#value'];
if (isset($current_field['type']) && $current_field['type'] == 'noderelationships_backref') {
$type_url_str = str_replace('_', '-', $vars['form']['#type_name']);
// Use the field type label to display information about the back
// reference itself.
if (isset($current_field['referrer_field']) && isset($current_field['referrer_type'])) {
$referrer_field = content_fields($current_field['referrer_field'], $current_field['referrer_type']);
$vars['rows'][$index]->type = t('Back references from @referrer-label in @referrer-type', array(
'@referrer-label' => $referrer_field['widget']['label'],
'@referrer-type' => noderelationships_get_localized_content_type_name($current_field['referrer_type']),
));
}
// Use the remove link to point to back reference settings.
$vars['rows'][$index]->remove = '
'. l(t('Back reference settings'), 'admin/content/node-type/'. $type_url_str .'/relationships/backref');
}
}
}
}
/**
* Alter CCK administration forms.
*
* @see noderelationships_form_alter()
*/
function _noderelationships_cck_admin_forms_alter(&$form, $form_state, $form_id) {
// Alter CCK fields overview form (Manage fields screen).
if ($form_id == 'content_field_overview_form') {
if (isset($form['_add_new_field']) && isset($form['_add_new_field']['type']) && isset($form['_add_new_field']['type']['#options'])) {
// Hide back reference fields from the "Add new field" selector to
// prevent users from creating Back reference fields manually.
// We will create these kind of fields from the back reference settings
// page provided by node relationships module itself.
if (isset($form['_add_new_field']['type']['#options']['noderelationships_backref'])) {
unset($form['_add_new_field']['type']['#options']['noderelationships_backref']);
}
}
if (isset($form['_add_existing_field']) && isset($form['_add_existing_field']['field_name']) && isset($form['_add_existing_field']['field_name']['#options'])) {
// Hide back reference fields from the "Add existing field" selector to
// prevent the field from being shared. We don't want per field tables.
foreach (content_fields() as $field) {
if ($field['type'] == 'noderelationships_backref' && isset($form['_add_existing_field']['field_name']['#options'][$field['field_name']])) {
unset($form['_add_existing_field']['field_name']['#options'][$field['field_name']]);
}
}
}
// The above changes to the form are mostly related to usability, where we
// simply hide options users are not allowed to use, but we need to check
// this properly. So we now add a validate callback so that we can prevent
// users from creating back reference fields manually.
$form['#validate'][] = '_noderelationships_content_field_overview_form_validate';
}
// Alter CCK field settings form.
elseif ($form_id == 'content_field_edit_form' && isset($form['#field']) && isset($form['#field']['type'])) {
// Node reference field settings.
if ($form['#field']['type'] == 'nodereference') {
// Add a submit callback so that we can get rid of information about back
// references that are no longer enabled.
$form['#submit'][] = '_noderelationships_nodereference_settings_form_submit';
return;
}
// Back reference field settings.
elseif ($form['#field']['type'] == 'noderelationships_backref') {
unset($form['basic']);
$form['field']['required']['#access'] = FALSE;
$form['field']['multiple']['#access'] = FALSE;
$form['widget']['description']['#access'] = FALSE;
unset($form['widget']['default_value_fieldset']);
$field = $form['#field'];
$type = noderelationships_get_localized_content_type($form['type_name']['#value']);
$type_url_str = str_replace('_', '-', $form['type_name']['#value']);
$form['widget']['#title'] = t('Back reference field settings');
$form['widget']['#description'] = t('Back reference fields for the %type content type are created automatically from the settings specified in the back reference settings panel for the %type content type.', array(
'@backref-settings' => url('admin/content/node-type/'. $type_url_str .'/relationships/backref'),
'%type' => $type->name,
));
$form['widget']['label'] = array(
'#type' => 'textfield',
'#title' => t('Label'),
'#default_value' => $field['widget']['label'],
'#required' => TRUE,
'#description' => t('A human-readable name to be used as the label for the back references view displayed for this field in the %type content type.', array('%type' => $type->name)),
);
$form['field']['#title'] = t('Referrer information');
$form['field']['#description'] = t('This section provides information about the node reference field that generates back references to the %type content type.', array(
'%type' => $type->name,
));
$form['field']['referrer_type'] = array(
'#type' => 'textfield',
'#title' => t('Referrer type'),
'#value' => $field['referrer_type'],
'#disabled' => TRUE,
);
$form['field']['referrer_field'] = array(
'#type' => 'textfield',
'#title' => t('Referrer field'),
'#value' => $field['referrer_field'],
'#disabled' => TRUE,
);
$form['#validate'][] = '_noderelationships_backreference_settings_form_validate';
}
}
}
/**
* Validate handler for CCK fields overview form (Manage fields screen).
*/
function _noderelationships_content_field_overview_form_validate($form, &$form_state) {
// Make sure back reference fields are not added manually.
if (isset($form_state['values']['_add_new_field'])) {
$field = $form_state['values']['_add_new_field'];
if (!empty($field['type']) && $field['type'] == 'noderelationships_backref') {
form_set_error('_add_new_field][type', t('Add existing field: Back reference fields are managed by the Node Reference module automatically.'));
}
}
// Make sure back reference fields are not shared.
if (isset($form_state['values']['_add_existing_field'])) {
$field = $form_state['values']['_add_existing_field'];
if (!empty($field['field_name'])) {
$existing_field = content_fields($field['field_name']);
if (isset($existing_field['type']) && $existing_field['type'] == 'noderelationships_backref') {
form_set_error('_add_existing_field][field_name', t('Add existing field: Back reference fields are managed by the Node Reference module automatically.'));
}
}
}
}
/**
* Validate handler for back reference field settings form.
*/
function _noderelationships_backreference_settings_form_validate($form, &$form_state) {
// Make sure back reference fields are single valued and not required.
form_set_value($form['field']['required'], 0, $form_state);
form_set_value($form['field']['multiple'], 0, $form_state);
// Get rid of widget related data (not used for these fields).
form_set_value($form['widget']['description'], '', $form_state);
form_set_value($form['widget']['default_value_php'], '', $form_state);
}
/**
* Submit handler for nodereference field settings form.
*/
function _noderelationships_nodereference_settings_form_submit($form, &$form_state) {
// Get rid of information about back references that are no longer enabled.
$form_values = $form_state['values'];
$nodetype = $form_values['type_name'];
$field_name = $form_values['field_name'];
$referenceable_types = (!empty($form_values['referenceable_types']) ? array_filter($form_values['referenceable_types']) : array());
$back_references = noderelationships_settings_list("relation_type = 'backref' AND related_type = '%s' AND field_name = '%s'", $nodetype, $field_name);
$types_to_sync = array();
foreach ($back_references as $back_reference) {
if (!isset($referenceable_types[$back_reference->type_name])) {
noderelationships_settings_delete("relation_type = 'backref' AND type_name = '%s' AND field_name = '%s'", $back_reference->type_name, $field_name);
if (!isset($types_to_sync[$back_reference->type_name])) {
$types_to_sync[$back_reference->type_name] = $back_reference->type_name;
}
}
}
// Synchronize back reference settings with back reference fields.
noderelationships_cck_backref_sync_fields($types_to_sync);
}
/**
* Alter views ui related forms.
*
* @see noderelationships_form_alter()
*/
function _noderelationships_views_ui_form_alter(&$form, $form_state, $form_id, $view_tag) {
// Make sure the path in page displays is not changed.
// It should be unique and private for this module.
if ($form_id == 'views_ui_edit_display_form') {
if (isset($form_state['section']) && $form_state['section'] == 'path' && isset($form['path'])) {
_noderelationships_views_ui_form_element_disable($form['path'], array(
'value' => NODERELATIONSHIPS_VIEW_PATH_PREFIX .'/'. str_replace('_', '-', $form_state['view']->name) .'/'. str_replace('_', '-', $form_state['display_id']),
'description' => t('The path assigned to this view is dynamically customized by the Node Relationships module.'),
));
}
return;
}
// Make sure the view tag is not changed on view settings and clone view forms.
if ($form_id == 'views_ui_edit_details_form' || $form_id == 'views_ui_add_form') {
if (isset($form['tag'])) {
_noderelationships_views_ui_form_element_disable($form['tag'], array(
'value' => ($form_id == 'views_ui_edit_details_form' ? $form_state['view']->tag : $form['tag']['#default_value']),
'description' => t('The tag assigned to this view is marked readonly because it is used to trigger the dynamic customizations of the view performed by the Node Relationships module.'),
));
}
return;
}
}
/**
* Assign an arbitrary value and disable the given form element.
*/
function _noderelationships_views_ui_form_element_disable(&$element, $options) {
$element['#disabled'] = TRUE;
$element['#default_value'] = $element['#value'] = $options['value'];
$element['#description'] = $options['description'];
$element['#size'] = 80;
if (!isset($element['#element_validate'])) {
$element['#element_validate'] = array();
}
array_unshift($element['#element_validate'], '_noderelationships_views_ui_form_element_validate');
}
/**
* Assign default value for disabled elements in view ui settings form.
*/
function _noderelationships_views_ui_form_element_validate($element, &$form_state) {
form_set_value($element, $element['#default_value'], $form_state);
}
/**
* Alter admin theme settings form.
*/
function _noderelationships_admin_theme_form_alter(&$form) {
$form['noderelationships_admin_theme_children'] = array(
'#type' => 'checkbox',
'#title' => t('Use administration theme for Node Relationships pages'),
'#description' => t('Use the administration theme for the Node Relationships pages rendered in modal frames for features such as "Search and reference", "Create and reference", etc.'),
'#default_value' => variable_get('noderelationships_admin_theme_children', '0'),
);
// Move submit buttons to the bottom of the form.
// Note: this method used also by Theme Settings API.
$form['buttons']['#weight'] = 1;
}