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<?php
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/**
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* Implementation of hook_form_alter
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*/
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function signup_scheduler_form_alter($form_id, &$form) {
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switch ($form_id) {
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// Node edit form
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case $form['type']['#value'] .'_node_form':
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signup_scheduler_alter_node_form($form_id, $form);
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break;
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// Signup admin node form
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case 'signup_admin_node_form':
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signup_scheduler_alter_signup_admin_node_form($form_id, $form);
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break;
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}
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}
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function signup_scheduler_alter_node_form($form_id, &$form) {
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// Simple check to see if signups are enabled
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// All logic for this is handled in signup.module
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if (isset($form['signup'])) {
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global $user;
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// Load the node if it already exists.
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if (isset($form['nid']['#value'])) {
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$node = node_load($form['nid']['#value']);
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}
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else {
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$node = NULL;
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}
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$form['signup']['node_settings']['schedule'] = array(
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'#type' => 'fieldset',
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'#title' => t('Schedule'),
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);
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$form['signup']['node_settings']['schedule']['signup_scheduler_status'] = array(
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'#type' => 'checkbox',
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'#title' => t('Enable scheduling of signups for this node'),
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'#default_value' => $node->signup_scheduler_status,
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'#description' => t('If enabled, signups for this node will automatically be turned on and off at midnight on the dates selected.'),
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);
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$form['signup']['node_settings']['schedule']['signup_scheduler_open'] = array(
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'#type' => 'date',
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'#title' => t('Open signups on'),
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'#default_value' => signup_scheduler_timestamp_to_date($node->signup_scheduler_open),
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'#description' => t('If this date is later than now, signups will be enabled, but closed, for this node until the specified date.'),
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);
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$form['signup']['node_settings']['schedule']['signup_scheduler_close'] = array(
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'#type' => 'date',
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'#title' => t('Close signups on'),
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'#default_value' => signup_scheduler_timestamp_to_date($node->signup_scheduler_close),
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);
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}
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}
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function signup_scheduler_alter_signup_admin_node_form($form_id, &$form) {
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if (isset($form['nid']['#value'])) {
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$node = node_load($form['nid']['#value']);
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}
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if ($node->signup_scheduler_status) {
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if (isset($form['status']['#options'])) {
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$form['status']['#value'] = $form['status']['#options'][$form['status']['#default_value']];
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unset($form['status']['#type']);
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unset($form['status']['#options']);
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unset($form['status']['#default_value']);
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}
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$form['limit']['#value'] = $form['limit']['#default_value'];
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unset($form['limit']['#type']);
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$form['submit']['#value'] = t('N/A (Edit node to change signup settings)');
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$form['submit']['#description'] = 'Signup open and close status is being managed by the signup scheduled open and close dates.';
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unset($form['submit']['#type']);
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//dpm($form);
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}
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}
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/**
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* Implementation of hook_nodeapi
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*/
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function signup_scheduler_nodeapi(&$node, $op, $a3, $a4) {
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/**
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* Validate
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*/
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if ($op == 'validate' && $node->signup) {
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$open = signup_scheduler_date_to_timestamp($node->signup_scheduler_open);
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$close = signup_scheduler_date_to_timestamp($node->signup_scheduler_close);
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// make sure close date is after open date
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if (!($close > $open)) {
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form_set_error('signup_scheduler_close', t('The signup scheduled close date must be after the scheduled open date.'));
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}
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if (!$node->signup_enabled) {
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form_set_error('signup_scheduler_status', t('You have enabled signup scheduling, but have not enabled signups.'));
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}
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}
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/**
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* Insert
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*/
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if ($op == 'insert' && $node->signup) {
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$open = signup_scheduler_date_to_timestamp($node->signup_scheduler_open);
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$close = signup_scheduler_date_to_timestamp($node->signup_scheduler_close);
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db_query("INSERT INTO {signup_scheduler} (nid, status, open, close) VALUES (%d, %d, %d, %d)", $node->nid, $node->signup_scheduler_status, $open, $close);
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// Close signups if the open date is later than now
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if ($open > time()) {
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signup_close_signup($node->nid);
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}
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}
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/**
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* Update
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*/
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if ($op == 'update' && $node->signup) {
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$has_record = db_result(db_query('SELECT COUNT(*) FROM {signup_scheduler} WHERE nid = %d', $node->nid));
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$open = signup_scheduler_date_to_timestamp($node->signup_scheduler_open);
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$close = signup_scheduler_date_to_timestamp($node->signup_scheduler_close);
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if ($has_record) {
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db_query("UPDATE {signup_scheduler} SET status = %d, open = %d, close = %d WHERE nid = %d", $node->signup_scheduler_status, $open, $close, $node->nid);
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}
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else {
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db_query("INSERT INTO {signup_scheduler} (nid, status, open, close) VALUES (%d, %d, %d, %d)", $node->nid, $node->signup_scheduler_status, $open, $close);
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}
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// Close signups if the open date is later than now
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if ($open > time()) {
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signup_close_signup($node->nid);
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}
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// Open signups, if applicable
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if (!$node->signup_status && $open < time() && $close > time() && ($node->signup_close_signup_limit == 0 || $node->signup_total < $node->signup_close_signup_limit)) {
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signup_open_signup($node->nid);
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drupal_set_message(t('Signups opened for !title.', array('!title' => l($node->title, "node/$node->nid"))));
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}
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// If using signup schedule, don't allow seat limit change to reopen the node
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// This is really fragile, but I'm not sure of another way around it without hacking signup module
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foreach ($_SESSION['messages']['status'] as $key => $message) {
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if (stristr($message, t('signups re-opened'))) {
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if ($open > time() || $close < time()) {
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signup_close_signup($node->nid);
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unset($_SESSION['messages']['status'][$key]);
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if (!count($_SESSION['messages']['status'])) {
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unset($_SESSION['messages']['status']);
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}
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}
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}
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}
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}
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/**
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* Delete
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*/
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if ($op == 'delete') {
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db_query("DELETE FROM {signup_scheduler} WHERE nid = %d", $node->nid);
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}
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/**
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* Load
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*/
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if ($op == 'load') {
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$result = db_query("SELECT * FROM {signup_scheduler} WHERE nid = %d", $node->nid);
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if (db_num_rows($result)) {
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$schedule = db_fetch_object($result);
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$node->signup_scheduler_status = $schedule->status;
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$node->signup_scheduler_open = $schedule->open;
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$node->signup_scheduler_close = $schedule->close;
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}
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}
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}
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/**
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* Implementation of hook_cron
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* Change "enabled" status of signup-enabled modules based on scheduled open and close dates
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*/
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function signup_scheduler_cron() {
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// Close open signups
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$result = db_query("SELECT ss.nid FROM {signup_scheduler} ss, {signup} s WHERE ss.close < %d AND ss.nid = s.nid AND s.status = 1", time());
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while ($signup = db_fetch_object($result)) {
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signup_close_signup($signup->nid, $cron = 'yes');
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$node = node_load($signup->nid);
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foreach (module_implements('signup_close') as $module) {
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$function = $module .'_signup_close';
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$function($node);
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}
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watchdog('signup', t('Signups closed for %event by cron.', array('%event' => $node->title)), WATCHDOG_NOTICE, l(t('view'), 'node/'. $node->nid));
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}
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// Open closed signups (only open if the close date is after now)
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$result = db_query("SELECT ss.nid FROM {signup_scheduler} ss, {signup} s WHERE ss.open < %d AND ss.close > %d AND ss.nid = s.nid AND s.status = 0", time(), time());
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while ($signup = db_fetch_object($result)) {
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$nid = $signup->nid;
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db_query("UPDATE {signup} SET status = 1 WHERE nid = %d", $nid);
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$node = node_load(array('nid' => $nid));
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foreach (module_implements('signup_open') as $module) {
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$function = $module .'_signup_open';
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$function($node);
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}
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watchdog('signup', t('Signups opened for %title by cron.', array('%title' => $node->title)), WATCHDOG_NOTICE, l(t('view'), 'node/'. $nid));
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}
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}
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/**
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* Convert a Drupal date field array to a timestamp
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*/
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function signup_scheduler_date_to_timestamp($date) {
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return mktime(0, 0, 0, $date['month'], $date['day'], $date['year']);
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}
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/**
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* Convert a timestamp to a Drupal date field array
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*/
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function signup_scheduler_timestamp_to_date($timestamp) {
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$month = date('m', $timestamp);
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$day = date('d', $timestamp);
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$year = date('Y', $timestamp);
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return array('month' => $month, 'day' => $day, 'year' => $year);
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}
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