asgarosforum = $object;
add_action('asgarosforum_editor_custom_content_bottom', array($this, 'editor_poll_form'), 10, 1);
add_action('asgarosforum_after_add_topic_submit', array($this, 'editor_poll_process'), 10, 6);
add_action('asgarosforum_after_edit_post_submit', array($this, 'editor_poll_process'), 10, 6);
add_action('asgarosforum_prepare_topic', array($this, 'save_vote'));
add_action('asgarosforum_after_delete_topic', array($this, 'delete_poll'), 10, 1);
}
public function editor_poll_form($editor_view) {
// Cancel if poll-functionality is disabled.
if (!$this->asgarosforum->options['enable_polls']) {
return;
}
// Cancel if user is not logged-in.
if (!is_user_logged_in()) {
return;
}
// Cancel if user has no permissions to create a poll.
if ($this->asgarosforum->options['polls_permission'] == 'moderator' && !$this->asgarosforum->permissions->isModerator('current')) {
return;
}
// Set IDs.
$post_id = $this->asgarosforum->current_post;
$topic_id = $this->asgarosforum->current_topic;
if ($editor_view === 'addtopic') {
$this->poll_form_add();
}
if ($editor_view === 'editpost') {
// Cancel if this is not the first post.
if (!$this->asgarosforum->is_first_post($post_id)) {
return;
}
// Try to get a poll.
$poll = $this->get_poll($topic_id);
if ($poll === false) {
$this->poll_form_add();
} else {
$this->poll_form_edit($poll);
}
}
}
public function poll_form_add() {
echo '
';
echo __('After creating a poll it will be no longer possible to add or remove answers. This ensures the integrity of existing votes. However, it will be still possible to make text-changes to existing answers and to poll-settings. If major changes for a poll are required, you must delete the existing poll and create a new one for this topic.', 'asgaros-forum');
echo '
';
echo __('To ensure the integrity of existing votes it is not possible to add or remove answers. However, it is still possible to make text-changes to existing answers and to poll-settings. If major changes for a poll are required, you must delete the existing poll and create a new one for this topic.', 'asgaros-forum');
echo '
';
}
public function add_poll($topic_id, $title, $options, $multiple) {
// Insert poll.
$this->asgarosforum->db->insert(
$this->asgarosforum->tables->polls,
array('id' => $topic_id, 'title' => $title, 'multiple' => $multiple),
array('%d', '%s', '%d')
);
// Insert poll options.
foreach ($options as $option) {
$this->asgarosforum->db->insert(
$this->asgarosforum->tables->polls_options,
array('poll_id' => $topic_id, 'title' => $option),
array('%d', '%s')
);
}
}
public function update_poll($poll_id, $title, $options, $multiple) {
// Update poll.
$this->asgarosforum->db->update(
$this->asgarosforum->tables->polls,
array('title' => $title, 'multiple' => $multiple),
array('id' => $poll_id),
array('%s', '%d'),
array('%d')
);
// Update options.
foreach ($options as $key => $value) {
$this->asgarosforum->db->update(
$this->asgarosforum->tables->polls_options,
array('title' => $value),
array('id' => $key, 'poll_id' => $poll_id),
array('%s'),
array('%d', '%d')
);
}
}
public function delete_poll($poll_id) {
$poll = $this->get_poll($poll_id);
// Cancel if this topic has no poll.
if ($poll === false) {
return;
}
// Delete all existing poll-data.
$this->asgarosforum->db->delete($this->asgarosforum->tables->polls, array('id' => $poll_id), array('%d'));
$this->asgarosforum->db->delete($this->asgarosforum->tables->polls_options, array('poll_id' => $poll_id), array('%d'));
$this->asgarosforum->db->delete($this->asgarosforum->tables->polls_votes, array('poll_id' => $poll_id), array('%d'));
}
public function editor_poll_process($post_id, $topic_id, $topic_subject, $topic_content, $topic_link, $author_id) {
// Cancel if poll-functionality is disabled.
if (!$this->asgarosforum->options['enable_polls']) {
return;
}
// Cancel if this is not the first post.
if (!$this->asgarosforum->is_first_post($post_id)) {
return;
}
// Check if topic has a poll.
$has_poll = $this->has_poll($topic_id);
// Prepare variables.
$poll_valid = true;
$poll_title = '';
$poll_options = array();
$poll_multiple = 0;
// Try to set poll-title.
if (!empty($_POST['poll-title'])) {
// Trim poll-title and remove tags.
$poll_title = trim(strip_tags($_POST['poll-title']));
}
// Validate poll-title.
if (empty($poll_title)) {
$poll_valid = false;
}
// Try to set poll-options.
if (!empty($_POST['poll-option'])) {
// Assign not-empty poll-options to array.
foreach ($_POST['poll-option'] as $key => $value) {
$poll_option = trim(strip_tags($value));
if (!empty($poll_option)) {
$poll_options[$key] = $poll_option;
}
}
}
// Validate poll-options.
if (empty($poll_options)) {
$poll_valid = false;
}
// Set multiple-option.
if (isset($_POST['poll-multiple'])) {
$poll_multiple = 1;
}
// If topic has no poll and a valid poll is given: Add poll.
if ($has_poll === false && $poll_valid === true) {
// Add poll.
$this->add_poll($topic_id, $poll_title, $poll_options, $poll_multiple);
// Terminate function.
return;
}
// If topic has a poll and a valid poll is given: Update poll.
if ($has_poll === true && $poll_valid === true) {
// Update poll.
$this->update_poll($topic_id, $poll_title, $poll_options, $poll_multiple);
// Terminate function.
return;
}
// If topic has a poll and no valid poll is given: Delete poll.
if ($has_poll === true && $poll_valid === false) {
// Delete poll.
$this->delete_poll($topic_id);
// Terminate function.
return;
}
}
public function save_vote() {
// Cancel if poll-functionality is disabled.
if (!$this->asgarosforum->options['enable_polls']) {
return;
}
// Ensure that a vote happened.
if (empty($_POST['poll_action']) || $_POST['poll_action'] !== 'vote') {
return;
}
// Ensure that there is a poll.
$poll = $this->get_poll($this->asgarosforum->current_topic);
if ($poll === false) {
return;
}
// Ensure that the user can vote.
$user_id = get_current_user_id();
if (!$this->can_vote($user_id, $poll->id)) {
return;
}
// Ensure that an option got selected.
$votes = (!empty($_POST['poll-option'])) ? $_POST['poll-option'] : false;
if ($votes === false) {
return;
}
// Ensure that amount of votes represents poll-settings.
if ($poll->multiple == 0 && count($votes) > 1) {
return;
}
// Ensure that voted options belongs to the poll.
foreach ($votes as $vote) {
if (!isset($poll->options[$vote])) {
return;
}
}
// Save votes in database.
foreach ($votes as $vote) {
$this->asgarosforum->db->insert(
$this->asgarosforum->tables->polls_votes,
array('poll_id' => $poll->id, 'option_id' => $vote, 'user_id' => $user_id),
array('%d', '%d', '%d')
);
}
}
// Checks if a given user voted for a specific poll.
public function has_voted($user_id, $poll_id) {
$has_voted = $this->asgarosforum->db->get_var("SELECT COUNT(*) FROM {$this->asgarosforum->tables->polls_votes} WHERE poll_id = {$poll_id} AND user_id = {$user_id};");
if ($has_voted > 0) {
return true;
}
return false;
}
// Checks if an user can vote.
public function can_vote($user_id, $poll_id) {
// Logged-out users cant vote.
if ($user_id === 0) {
return false;
}
// Ensure that user has not already voted.
if ($this->has_voted($user_id, $poll_id)) {
return false;
}
return true;
}
public function render_poll($topic_id) {
// Cancel if poll-functionality is disabled.
if (!$this->asgarosforum->options['enable_polls']) {
return;
}
// Get poll.
$poll = $this->get_poll($topic_id);
// Cancel if there is no poll.
if ($poll === false) {
return;
}
// Get id of the current user.
$user_id = get_current_user_id();
// Check if the current user can vote.
$can_vote = $this->can_vote($user_id, $poll->id);
// Check if results are visible.
$can_see_results = $this->asgarosforum->options['polls_results_visible'];
if ($this->has_voted($user_id, $poll->id)) {
$can_see_results = true;
}
echo '
';
echo '';
echo '
';
}
// Checks if a given topic has a poll.
public function has_poll($topic_id) {
// Cancel if topic_id is not set.
if (!$topic_id) {
return false;
}
// Try to get the poll for the given topic first.
$poll = $this->asgarosforum->db->get_row("SELECT * FROM {$this->asgarosforum->tables->polls} WHERE id = {$topic_id};");
// Cancel if there is no poll for the given topic.
if (!$poll) {
return false;
}
// Otherwise return true.
return true;
}
public function get_poll($topic_id) {
// Try to get the poll for the given topic first.
$poll = $this->asgarosforum->db->get_row("SELECT * FROM {$this->asgarosforum->tables->polls} WHERE id = {$topic_id};");
// Cancel if there is no poll for the given topic.
if (!$poll) {
return false;
}
// Get options and votes for the poll.
$poll->options = $this->asgarosforum->db->get_results("SELECT po.id, po.title, (SELECT COUNT(*) FROM {$this->asgarosforum->tables->polls_votes} AS pv WHERE pv.option_id = po.id) AS votes FROM {$this->asgarosforum->tables->polls_options} AS po WHERE po.poll_id = {$poll->id};", 'OBJECT_K');
// Get total votes.
$poll->total_votes = $this->asgarosforum->db->get_var("SELECT COUNT(*) FROM {$this->asgarosforum->tables->polls_votes} WHERE poll_id = {$poll->id};");
// Get total participants.
$participants = $this->asgarosforum->db->get_results("SELECT user_id, COUNT(*) FROM {$this->asgarosforum->tables->polls_votes} WHERE poll_id = {$poll->id} GROUP BY user_id;");
$poll->total_participants = count($participants);
return $poll;
}
private $get_bar_color_counter = 0;
public function get_bar_color() {
$this->get_bar_color_counter++;
$colors = array();
$colors[] = '#4661EE';
$colors[] = '#EC5657';
$colors[] = '#1BCDD1';
$colors[] = '#8FAABB';
$colors[] = '#B08BEB';
$colors[] = '#3EA0DD';
$colors[] = '#F5A52A';
$colors[] = '#23BFAA';
$colors[] = '#FAA586';
$colors[] = '#EB8CC6';
return $colors[$this->get_bar_color_counter % 10];
}
}