411 lines
14 KiB
Plaintext
411 lines
14 KiB
Plaintext
<?php
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/**
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* @file
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* Code for the Commons Q&A feature.
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*/
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include_once 'commons_q_a.features.inc';
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/**
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* Implements hook_theme().
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*/
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function commons_q_a_theme() {
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return array(
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'rate_template_commons_thumbs_up_down' => array(
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'variables' => array('links' => NULL, 'results' => NULL, 'mode' => NULL, 'just_voted' => FALSE, 'entity_type' => NULL, 'entity_id' => NULL, 'display_options' => NULL),
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'template' => 'commons-thumbs-up-down',
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),
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);
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}
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/**
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* Implements hook_node_view().
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*
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* Provides an answer button to bring a user down to the answer form.
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*/
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function commons_q_a_node_view($node, $view_mode) {
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if ($node->type == 'question' && $view_mode == 'full') {
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// Remove add comment link.
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unset($node->content['links']['comment']);
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// Add the answer link below.
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if (commons_q_a_check_answer_access($node)) {
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$node->content['links']['answer'] = array(
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'#theme' => 'links__node__answer',
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'#links' => array(
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'answer-add' => array(
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'title' => t('Answer'),
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'attributes' => array(
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'title' => t('Answer this question'),
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),
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'href' => 'node/' . $node->nid,
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'fragment' => 'answer',
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),
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),
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);
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}
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return $node;
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}
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}
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/**
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* Implements hook_form_FROM_ID_alter().
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*/
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function commons_q_a_form_commons_bw_partial_node_form_alter(&$form, &$form_state) {
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if (empty($form['#entity']) || $form['#entity']->type != 'question') {
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return;
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}
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$form['title']['#markup'] = t('Ask a question');
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$language = $form['body']['#language'];
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$form['body'][$language][0]['#title_display'] = 'invisible';
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$form['body'][$language][0]['#required'] = TRUE;
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$form['body'][$language][0]['#placeholder'] = t('Ask anything. Let the community answer openly.');
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$form['body'][$language][0]['#resizable'] = FALSE;
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// Set fields as hideable so the forms can be compacted.
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$form['body']['#attributes']['class'][] = 'trigger-field';
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foreach (array('field_media', 'field_image', 'og_group_ref', 'choice_wrapper', 'actions') as $field) {
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if (isset($form[$field])) {
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$form[$field]['#attributes']['class'][] = 'hideable-field';
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}
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}
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$form['actions']['submit']['#value'] = t('Ask');
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$form['#pre_render'][] = 'commons_q_a_form_commons_bw_partial_node_form_after_build';
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}
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/**
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* After-build call-back.
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* See commons_q_a_form_commons_bw_partial_node_form_alter().
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*/
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function commons_q_a_form_commons_bw_partial_node_form_after_build($form) {
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$language = $form['body']['#language'];
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$form['body'][$language][0]['#pre_render'] = array();
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$form['body'][$language][0]['format']['#access'] = FALSE;
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$form['body'][$language][0]['value']['#rows'] = 3;
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return $form;
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}
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/*
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* Run an access check to see if the current user can create answer nodes based
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* off of the question node.
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*/
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function commons_q_a_check_answer_access($question) {
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$group_ref = array();
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if (!empty($question->og_group_ref[LANGUAGE_NONE])) {
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foreach ($question->og_group_ref[LANGUAGE_NONE] as $key => $value) {
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// Check to see the user has access to the group the question is in, only attach to those groups they have permission to post in.
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if (og_user_access('node', $value['target_id'], 'create answer content')) {
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$group_ref[] = $value['target_id'];
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return TRUE;
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}
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}
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}
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// If user belongs to no groups, or no groups are assigned to the Question, check node_access for user.
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else {
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if (node_access('create', 'answer')) {
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return TRUE;
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}
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}
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return FALSE;
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}
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/**
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* Implements hook_views_pre_render().
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*/
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function commons_q_a_views_pre_render(&$view) {
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// Improve the browsing widget empty text when displayed outside of a group.
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// TODO: Enable og_context and check group context instead of looking for an
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// empty first argument.
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if (empty($view->args[0]) && $view->name == 'commons_bw_q_a') {
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$view->display_handler->handlers['empty']['area']->options['content'] = t('No questions have been created.');
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}
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if ($view->name == 'commons_question_answers' && !empty($view->args[0])) {
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// If the user has access to post into any of the groups associated
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// with the question, embed a simplified answer node form.
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global $user;
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if (user_is_anonymous()) {
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$account = drupal_anonymous_user();
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}
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else {
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$account = $user;
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}
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$question_nid = $view->args[0];
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$question = node_load($question_nid);
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$answer_access = commons_q_a_check_answer_access($question);
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// Check global user access before showing the answer form.
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if ($answer_access) {
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$view->empty['area']->options['content'] = t("This question hasn't been answered yet. You can be the first to answer it!");
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module_load_include('inc', 'node', 'node.pages');
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$types = node_type_get_types();
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$node = (object) array(
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'uid' => $account->uid,
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'name' => (isset($account->name) ? $account->name : ''),
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'type' => 'answer', 'language' => LANGUAGE_NONE
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);
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// Prepopulate the Related question field
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// with Entityreference Prepopulate, which looks strictly at $_GET.
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$_GET['field_related_question'] = $view->args[0];
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if (!empty($group_ref)) {
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$_GET['og_group_ref'] = implode(',', $group_ref);
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}
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$answer_form = drupal_get_form('answer_node_form', $node);
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$answer_form['header'] = array(
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'#markup' => '<h3 id="answer" name="answer">' . t('Add a new answer') . '</h3>',
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'#weight' => -10,
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);
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// Hide any vertical tabs that might be present.
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$answer_form['additional_settings']['#access'] = FALSE;
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// Hide the Related question field.
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$answer_form['field_related_question']['#access'] = FALSE;
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// Add the form to the attachment_after part of the view,
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$view->attachment_after .= drupal_render($answer_form);
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// We only need to add the form once if the user has access to
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// post questions into any of the groups associated with the parent.
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return;
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}
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// Tell Anonymous users to login.
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elseif ($account->uid === 0) {
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$view->empty['area']->options['content'] = t("This question hasn't been answered yet. !create to be the first to answer it!", array('!create' => l(t("Login or create an account"), 'user')));
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return;
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}
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// If the user is not anonymous, but cannot answer the question. Don't tell
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// them they should be the first to answer it.
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else {
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$view->empty['area']->options['content'] = t("This question hasn't been answered yet.");
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return;
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}
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}
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}
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/*
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* Implements hook_module_implements_alter().
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* Set commons_q_a form alter to happen after node so the title doesn't get reset.
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*/
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function commons_q_a_module_implements_alter(&$implementations, $hook) {
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if ($hook == 'form_alter') {
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$group = $implementations['commons_q_a'];
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unset($implementations['commons_q_a']);
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$implementations['commons_q_a'] = $group;
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}
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}
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/**
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* Implements hook_form_BASE_FORM_ID_alter().
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*/
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function commons_q_a_form_node_form_alter(&$form, &$form_state, $form_id) {
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$node = $form['#node'];
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list(, , $bundle) = entity_extract_ids('node', $node);
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if ($bundle == 'question' && empty($node->nid)) {
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drupal_set_title(t('Ask a question'));
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}
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}
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/**
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* Implements hook_form_alter().
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*/
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function commons_q_a_form_alter(&$form, &$form_state, $form_id) {
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// Unset the groups audience field. Answers programatically inherit
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// the group membership of their respective questions.
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if ($form_id == 'answer_node_form') {
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$form['og_group_ref']['#access'] = FALSE;
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$form['actions']['submit']['#submit'][] = 'commons_q_a_answer_submit';
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// Ensure that the answer node inherits group membership from the
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// parent question by preventing users from changing the audience through
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// the Trusted Contacts toggle when commons_trusted_contacts.module
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// is enabled.
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$form_state['hide_audience_toggle'] = TRUE;
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}
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if ($form_id == 'comment_node_question_form' || $form_id == 'comment_node_answer_form') {
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$form['container'] = array(
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'#type' => 'fieldset',
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'#title' => t('Add new comment'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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'#weight' => 2,
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);
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$form['container']['author'] = $form['author'];
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$form['container']['comment_body'] = $form['comment_body'];
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$form['container']['actions'] = $form['actions'];
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unset($form['author']);
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unset($form['subject']); // We don't need a subject, they're pointless within comments.
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unset($form['comment_body']);
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unset($form['actions']);
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}
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}
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/**
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* Implements hook_field_attach_submit().
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*/
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function commons_q_a_field_attach_submit($entity_type, &$entity, $form, &$form_state) {
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// Questions should inherit the group membership of the related question.
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if ($entity_type == 'node' && $entity->type == 'answer' && empty($entity->nid)) {
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$question = node_load($entity->field_related_question[LANGUAGE_NONE][0]['target_id']);
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$entity->og_group_ref = $question->og_group_ref;
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}
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}
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/**
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* Submit handler for the submit button on the answer node form.
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*/
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function commons_q_a_answer_submit($form, &$form_state) {
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// Redirect the user back to the related question.
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$form_state['redirect'] = 'node/' . $form_state['values']['field_related_question'][LANGUAGE_NONE][0]['target_id'];
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}
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/**
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* Implements hook_commons_activity_streams_message_selection_alter().
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*/
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function commons_q_a_commons_activity_streams_message_selection_alter(&$message_type, $hook, $node) {
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// Provide a special message type that uses "User asked the question"
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// phrasing when a new question node is created.
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if ($hook == 'node_insert' && $node->type == 'question') {
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$message_type = 'commons_q_a_question_asked';
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}
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// Provide a special message type that uses "User answered the question"
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// phrasing when a new answer node is created.
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if ($hook == 'node_insert' && $node->type == 'answer') {
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$message_type = 'commons_q_a_question_answered';
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}
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}
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/**
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* Preprocess function for the commons_like template.
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*/
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function commons_q_a_preprocess_rate_template_commons_thumbs_up_down(&$variables) {
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extract($variables);
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$up_classes = 'rate-number-up-down-btn-up';
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$down_classes = 'rate-number-up-down-btn-down';
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if (isset($results['user_vote'])) {
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switch ($results['user_vote']) {
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case $links[0]['value']:
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$up_classes .= ' rate-voted';
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break;
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case $links[1]['value']:
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$down_classes .= ' rate-voted';
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break;
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}
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}
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$variables['up_button'] = theme('rate_button', array('text' => $links[0]['text'], 'href' => $links[0]['href'], 'class' => $up_classes));
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$variables['down_button'] = theme('rate_button', array('text' => $links[1]['text'], 'href' => $links[1]['href'], 'class' => $down_classes));
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if ($results['rating'] > 0) {
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$score = $results['rating'];
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$score_class = 'positive';
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}
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elseif ($results['rating'] < 0) {
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$score = $results['rating'];
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$score_class = 'negative';
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}
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else {
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$score = 0;
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$score_class = 'neutral';
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}
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$variables['score'] = $score;
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$variables['score_class'] = $score_class;
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$info = array();
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if ($mode == RATE_CLOSED) {
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$info[] = t('Voting is closed.');
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}
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if ($mode != RATE_COMPACT && $mode != RATE_COMPACT_DISABLED) {
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if (isset($results['user_vote'])) {
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$info[] = t('You voted \'@option\'.', array('@option' => $results['user_vote'] == 1 ? $links[0]['text'] : $links[1]['text']));
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}
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}
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$variables['info'] = implode(' ', $info);
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}
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/**
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* Implements hook_rate_templates().
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*/
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function commons_q_a_rate_templates() {
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$templates = array();
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$templates['commons_thumbs_up_down'] = new stdClass();
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$templates['commons_thumbs_up_down']->value_type = 'points';
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$templates['commons_thumbs_up_down']->options = array(
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array(1, 'up'),
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array(-1, 'down'),
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);
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$templates['commons_thumbs_up_down']->theme = 'rate_template_commons_thumbs_up_down';
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$templates['commons_thumbs_up_down']->css = drupal_get_path('module', 'commons_q_a') . '/commons-thumbs-up-down.css';
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$templates['commons_thumbs_up_down']->customizable = FALSE;
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$templates['commons_thumbs_up_down']->translate = TRUE;
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$templates['commons_thumbs_up_down']->use_source_translation = TRUE;
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$templates['commons_thumbs_up_down']->template_title = t('Commons Thumbs up / down');
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return $templates;
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}
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/**
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* Implements hook_strongarm_alter().
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*/
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function commons_q_a_strongarm_alter(&$items) {
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// The Rate module stores all of its configuration data in a single variable.
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// Add a thumbs up/down-style 'Answer' rate widget by altering the rate
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// variable.
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if (!empty($items['rate_widgets']->value)) {
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$items['rate_widgets']->value[] = commons_q_a_rate_widget();
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}
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}
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/**
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* Return a Rate module widget configuration used for thumbs up/down
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* rating of answers.
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*/
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function commons_q_a_rate_widget() {
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return (object) array(
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'name' => 'commons_answer',
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'tag' => 'commons_thumbs_up_down',
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'title' => 'Answer',
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'node_types' => array(
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0 => 'answer',
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),
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'comment_types' => array(),
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'options' => array(
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0 => array(
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0 => 1,
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1 => 'up',
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),
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1 => array(
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0 => -1,
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1 => 'down',
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),
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),
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'template' => 'commons_thumbs_up_down',
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'node_display' => '2',
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'teaser_display' => FALSE,
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'comment_display' => '2',
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'node_display_mode' => '1',
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'teaser_display_mode' => '1',
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'comment_display_mode' => '1',
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'roles' => array(
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2 => '2',
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1 => 0,
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),
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'allow_voting_by_author' => 1,
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'noperm_behaviour' => '3',
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'displayed' => '1',
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'displayed_just_voted' => '1',
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'description' => '',
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'description_in_compact' => TRUE,
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'delete_vote_on_second_click' => '1',
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'value_type' => 'points',
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'theme' => 'rate_template_commons_thumbs_up_down',
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'css' => 'profiles/commons/modules/contrib/commons_q_a/commons-thumbs-up-down.css',
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'translate' => TRUE,
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'use_source_translation' => TRUE,
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);
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}
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