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mem.php
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<?php
/*
Plugin Name: Minimalistic Event Manager
Plugin URI: https://github.com/ms-studio/minimalistic-event-manager/
Description: The plugin allows to add event dates (start dates, end dates) to posts (and to custom post types).
Version: 1.0.7
Author: Dan Stefancu, Manuel Schmalstieg
Author URI: http://dreamproduction.net
By default the plugin adds the custom MEM metabox to all post types, but this can be changed by
calling the settings function (mem_plugin_settings):
function my_mem_settings() {
mem_plugin_settings( array( 'post', 'page', 'event' ), 'alpha' );
}
add_action( 'mem_init', 'my_mem_settings' );
Where the first parameter is an array of post types, or an array with "all" as the only value,
and the second parameter the edit mode (full/alpha).
The plugin checks for valid post types before adding the metabox.
*/
/**
* Init the plugin translation
*/
function mem_lang_init() {
load_plugin_textdomain( 'mem', false, dirname( plugin_basename( __FILE__ ) ) . '/lang/' );
}
/**
* Used to alter the plugin default settings.
*
* @param array $post_types all/array of post types
* @param string $edit_mode full/alpha
*/
function mem_plugin_settings( $post_types = array('all'), $edit_mode = 'full' ) {
$types = array();
if ( reset($post_types) == 'all' ) {
$types = get_post_types(array('public' => true, 'show_ui' => true));
} else {
foreach($post_types as $type) {
if ( post_type_exists($type) )
$types[] = $type;
}
}
update_option( 'mem_post_types', $types);
switch ($edit_mode) {
case 'full' :
update_option( 'mem_edit_mode', 'full' );
break;
case 'alpha' :
update_option( 'mem_edit_mode', 'alpha' );
break;
}
} // end mem_plugin_settings()
/**
* Add metaboxes for specified post types
*
* @uses add_meta_box()
*/
function mem_add_metaboxes(){
$post_types = get_option( 'mem_post_types' );
// check needed only on first plugin run, after this, the default option will contain
// an array of all public post types
if ( reset($post_types) == 'all' ) {
$post_types = get_post_types(array('public' => true, 'show_ui' => true));
}
// no need to further validate the data.
// the function wich alter settings validates post types before saving
foreach ($post_types as $post_type) {
add_meta_box('mem', __('Event Dates', 'mem'), 'mem_content', $post_type, 'side', 'core');
}
}
/**
* Display metabox content
*
* @param object $post post object
*/
function mem_content($post) {
$start_date = $end_date = '';
// true as last param for get_post_meta(), to get a string, not an array
if (! get_post_meta( $post->ID, '_mem_start_date', true ) ) {
$start_date_label = __('Not Set', 'mem');
// if no start date, delete repeats leftovers
delete_post_meta($post->ID, '_mem_repeat_date');
} else {
$start_date = $start_date_label = get_post_meta( $post->ID, '_mem_start_date', true );
}
if (! get_post_meta( $post->ID, '_mem_end_date', true ) ) {
$end_date_label = __('Not Set', 'mem');
} else {
$end_date = $end_date_label = get_post_meta( $post->ID, '_mem_end_date', true );
}
$start_title = __('Start date', 'mem');
$end_title = __('End date', 'mem');
/* translators: the title of the Repeat item, not the action button */
$repeat_title = _x('Repeat', 'repeat item title', 'mem');
// use default wp class .misc-pub-section for spacing and that thin line below ?>
<div class="misc-pub-section start">
<span class="date-title"><?php echo $start_title; ?></span>:
<strong class="date-label"><?php echo $start_date_label; ?></strong>
<a href="#edit_timestamp" class="mem-edit-timestamp hide-if-no-js" tabindex='4'><?php _e('Edit', 'mem') ?></a>
<a href="#edit_timestamp" class="mem-repeat-timestamp hide-if-no-js" tabindex='4'><?php
/* translators: the Repeat action button */
_ex('Repeat', 'repeat action button', 'mem') ?></a>
<div class='hide-if-js mem-date-select'><?php mem_touch_time( 'start', $start_date ); ?></div>
</div>
<?php
if ( get_post_meta( $post->ID, '_mem_repeat_date', true ) ) {
$repeats = get_post_meta( $post->ID, '_mem_repeat_date', false );
$repeat_count = 0;
foreach ($repeats as $repeat) {
$repeat_count++;
$repeat_date = $repeat_date_label = $repeat; ?>
<div class="misc-pub-section repeat">
<span class="date-title"><?php echo $repeat_title . " #" . $repeat_count; ?></span>:
<strong class="date-label"><?php echo $repeat_date_label; ?></strong>
<a href="#edit_timestamp" class="mem-edit-timestamp hide-if-no-js" tabindex='4'><?php _e('Edit', 'mem') ?></a>
<div class='hide-if-js mem-date-select'><?php mem_touch_time( 'repeat', $repeat_date, $repeat_count ); ?></div>
</div>
<?php
}
// we need a method to verify the repeats. there is no limit
echo "<input type='hidden' name='mem_total_repeats' value='" . $repeat_count . "' id='total-repeats' />";
}
// use default wp class .misc-pub-section for spacing and that thin line below ?>
<div class="misc-pub-section end">
<span class="date-title"><?php echo $end_title; ?></span>:
<strong class="date-label"><?php echo $end_date_label; ?></strong>
<a href="#edit_timestamp" class="mem-edit-timestamp hide-if-no-js" tabindex='4'><?php _e('Edit', 'mem') ?></a>
<div class='hide-if-js mem-date-select'><?php mem_touch_time( 'end', $end_date ); ?></div>
</div>
<?php
wp_nonce_field(plugin_basename( __FILE__ ), '_mem_nonce');
}
/**
* Display the date inputs
*
* @param string $type start/end
* @param string $custom_date date to edit, else current date will be used
* @param int $repeat_count repeat number
* @return mixed
*/
function mem_touch_time( $type = 'start', $custom_date = '', $repeat_count = 0 ) {
global $wp_locale;
$day = $month = $year = $hour = $minute = $split_date = $split_time = '';
if ($custom_date) {
list($split_date, $split_time) = explode(" ", $custom_date) + array("","");
// hack, so the list will not generate undefined index
// @see http://www.php.net/manual/en/function.list.php#103311
list($year, $month, $day) = explode("-", $split_date) + array("","","");
if ( $split_time )
list($hour, $minute) = explode(":", $split_time) + array("","");
}
$aa = ($custom_date) ? $year : '';
$mm = ($custom_date) ? $month : '';
$jj = ($custom_date) ? $day : '';
$hh = ($custom_date) ? $hour : '';
$mn = ($custom_date) ? $minute : '';
$month = "<select class=\"mm\" name=\"" . $type . "_mm" . ( $repeat_count ? '_'.$repeat_count : '' ) . "\">\n";
$month .= "\t\t\t" . '<option value=""';
$month .= ">-----</option>\n";
for ( $i = 1; $i < 13; $i = $i +1 ) {
$monthnum = zeroise($i, 2);
$month .= "\t\t\t" . '<option value="' . $monthnum . '"';
if ( $i == $mm )
$month .= ' selected="selected"';
/* translators: 1: month number (01, 02, etc.), 2: month abbreviation */
$month .= '>' . sprintf( __( '%1$s-%2$s', 'mem' ), $monthnum, $wp_locale->get_month_abbrev( $wp_locale->get_month( $i ) ) ) . "</option>\n";
}
$month .= '</select>';
$day = '<input type="text" class="jj" name="' . $type . '_jj' . ( $repeat_count ? '_'.$repeat_count : '' ) . '" value="' . $jj . '" size="2" maxlength="2" autocomplete="off" />';
$year = '<input type="text" class="aa" name="' . $type . '_aa' . ( $repeat_count ? '_'.$repeat_count : '' ) . '" value="' . $aa . '" size="4" maxlength="4" autocomplete="off" />';
$hour = '<input type="text" class="hh" name="' . $type . '_hh' . ( $repeat_count ? '_'.$repeat_count : '' ) . '" value="' . $hh . '" size="2" maxlength="2" autocomplete="off" />';
$minute = '<input type="text" class="mn" name="' . $type . '_mn' . ( $repeat_count ? '_'.$repeat_count : '' ) . '" value="' . $mn . '" size="2" maxlength="2" autocomplete="off" />';
echo '<div class="mem-timestamp-wrap">';
if (get_option( 'mem_edit_mode') == 'alpha') {
$alpha = '<input type="text" class="full-date-alpha" name="' . $type . '_full-date-alpha' . ( $repeat_count ? '_'.$repeat_count : '' );
$alpha .= '" value="' . $custom_date . '" size="32" autocomplete="off" />';
echo $alpha;
} else {
/* translation of the input order. 1 month, 2 day, 3 year, 4 hour, 5 minute */
printf(__('%1$s%2$s, %3$s @ %4$s : %5$s', 'mem'), $month, $day, $year, $hour, $minute);
}
// we need to store the old value for repeats, so we can store multiple repeats
// @see http://codex.wordpress.org/Function_Reference/update_post_meta#Parameters
if ($type == 'repeat')
echo '<input type="hidden" name="repeat_old_value_' . $repeat_count . '" value="' . $custom_date . '" class="old-value" />';
echo '</div>';
?>
<div class="mem-edit-buttons">
<a href="#edit_timestamp" class="mem-save-timestamp hide-if-no-js button"><?php _e('OK', 'mem'); ?></a>
<a href="#edit_timestamp" class="mem-cancel-timestamp hide-if-no-js"><?php _e('Cancel', 'mem'); ?></a>
<span class="mem-separator"> | </span>
<a href="#edit_timestamp" class="mem-delete-timestamp hide-if-no-js"><?php _e('Delete', 'mem'); ?></a>
</div>
<?php
}
/**
* Saves our date
*
* @param int $id post id
* @param object $post post object
* @return mixed
*/
function mem_save_date( $id, $post ) {
$mem_post_types = get_option( 'mem_post_types' );
if ( isset($mem_post_types[0]) && $mem_post_types[0] == 'all' ) {
$mem_post_types = get_post_types(array('public' => true, 'show_ui' => true));
}
// check for a valid post type
if ( !in_array($post->post_type, $mem_post_types) )
return;
// check nonce
$nonce = isset($_REQUEST['_mem_nonce']) ? $_REQUEST['_mem_nonce'] : '';
if ( !wp_verify_nonce( $nonce , plugin_basename( __FILE__ ) ) )
return;
// Check permissions
if ( !current_user_can( 'edit_post', $id ) )
return;
$types = array('start', 'end', 'repeat');
foreach ($types as $type) {
if ($type == 'repeat') {
$count_repeats = 1;
$total_repeats = isset($_POST['mem_total_repeats']) ? $_POST['mem_total_repeats'] : 0;
while ( $count_repeats <= $total_repeats ) {
$year = isset($_POST[$type . '_aa_' . $count_repeats]) ? $_POST[$type . '_aa_' . $count_repeats] : '';
$month = isset($_POST[$type . '_mm_' . $count_repeats]) ? $_POST[$type . '_mm_' . $count_repeats] : '';
$day = isset($_POST[$type . '_jj_' . $count_repeats]) ? $_POST[$type . '_jj_' . $count_repeats] : '';
$hour = isset($_POST[$type . '_hh_' . $count_repeats]) ? $_POST[$type . '_hh_' . $count_repeats] : '';
$minute = isset($_POST[$type . '_mn_' . $count_repeats]) ? $_POST[$type . '_mn_' . $count_repeats] : '';
$alpha_date = isset($_POST[$type . '_full-date-alpha_' . $count_repeats]) ? $_POST[$type . '_full-date-alpha_' . $count_repeats] : '';
// we need this to store multiple meta fields
// without old values all the meta fields are overwritten by the new value
$old_value = isset($_POST[$type . '_old_value_' . $count_repeats]) ? $_POST[$type . '_old_value_' . $count_repeats] : '';
if ( !empty($year) ) {
$date = $year;
if ( !empty($month) ) {
$date .= "-" . zeroise( $month, 2 );
if ( !empty($day) ) {
$date .= "-" . zeroise( $day, 2 );
if ( !empty($hour) ) {
$date .= " " . zeroise( $hour, 2 );
if ( !empty($minute) ) {
$date .= ":" . $minute;
} else {
$date .= ":00";
}
}
}
}
} elseif ( !empty($alpha_date) ) {
$date = $alpha_date;
} else {
delete_post_meta($id, '_mem_' . $type . '_date', $old_value);
$count_repeats++;
continue;
// if we delete, we don't need to update, continue
}
// don't update if there is a repeat date with the same value in db
$all_repeats = get_post_meta($id, '_mem_' . $type . '_date', false);
$all_values = get_post_meta($id);
$duplicate_found = false;
// loop the post custom fields
foreach ( $all_values as $key => $value ) {
// check to see the custom field is ours
if ( strpos($key, '_mem') !== false ) {
// we get an array
foreach($value as $single_value) {
if ($single_value == $date) {
$duplicate_found = true;
break;
}
}
}
}
if ( $duplicate_found ) {
$count_repeats++;
continue;
}
if ( empty($all_repeats) ) {
add_post_meta($id, '_mem_' . $type . '_date', $date );
} else {
// update or add only if our value isn't in db
if (!in_array($date,$all_repeats)) {
if ($old_value)
update_post_meta($id, '_mem_' . $type . '_date', $date, $old_value );
else
add_post_meta($id, '_mem_' . $type . '_date', $date );
}
}
$count_repeats++;
} // end testing for 'repeat' type
continue;
} // end foreach $types
$year = isset($_POST[$type . '_aa']) ? $_POST[$type . '_aa'] : '';
$month = isset($_POST[$type . '_mm']) ? $_POST[$type . '_mm'] : '';
$day = isset($_POST[$type . '_jj']) ? $_POST[$type . '_jj'] : '';
$hour = isset($_POST[$type . '_hh']) ? $_POST[$type . '_hh'] : '';
$minute = isset($_POST[$type . '_mn']) ? $_POST[$type . '_mn'] : '';
$alpha_date = isset($_POST[$type . '_full-date-alpha']) ? $_POST[$type . '_full-date-alpha'] : '';
if ( !empty($year) ) {
$date = $year;
if ( !empty($month) ) {
$date .= "-" . zeroise( $month, 2 );
if ( !empty($day) ) {
$date .= "-" . zeroise( $day, 2 );
if ( !empty($hour) ) {
$date .= " " . zeroise( $hour, 2 );
if ( !empty($minute) ) {
$date .= ":" . $minute;
} else {
$date .= ":00";
}
}
}
}
} elseif ( !empty($alpha_date) ) {
$date = $alpha_date;
} else {
delete_post_meta($id, '_mem_' . $type . '_date');
continue;
}
update_post_meta($id, '_mem_' . $type . '_date', $date );
}
}
function mem_ajax() {
$action = $_POST['mem_action'];
$id = $_POST['post_id'];
$type = $_POST['type'];
$date = $_POST['date'];
$old_value = isset($_POST['old_value']) ? $_POST['old_value'] : '';
switch ($action) {
case "save" :
if ($type == 'repeat') {
// don't update if there is a repeat date with the same value in db
$all_repeats = get_post_meta($id, '_mem_' . $type . '_date', false);
if ( empty($all_repeats) ) {
add_post_meta($id, '_mem_' . $type . '_date', $date );
} else {
if (!in_array($date,$all_repeats)) {
if ($old_value)
update_post_meta($id, '_mem_' . $type . '_date', $date, $old_value );
else
add_post_meta($id, '_mem_' . $type . '_date', $date );
}
}
} else {
// this is not a repeat
update_post_meta($id, '_mem_' . $type . '_date', $date );
}
break;
case "delete" :
if ($old_value)
delete_post_meta($id, '_mem_' . $type . '_date', $date, $old_value );
else
delete_post_meta($id, '_mem_' . $type . '_date', $date );
break;
}
}
/**
* Enqueue js used for metaboxes, add some CSS
*/
function mem_js() {
wp_enqueue_script( 'mem_js', plugins_url('/js/mem.js', __FILE__), array('jquery') );
$translation_array = array(
'not_set' => __('Not Set', 'mem'),
//'repeat' => __('Repeat', 'mem'),
'repeat' => _x('Repeat', 'repeat item title', 'mem'),
);
// sending ajaxurl as translated string is a hack seen as good practice to send the variable across scripts
// @see http://www.garyc40.com/2010/03/5-tips-for-using-ajax-in-wordpress/#js-global
wp_localize_script( 'mem_js', 'mem_l10n', $translation_array );
wp_enqueue_style( 'mem_css', plugins_url('/css/mem.css', __FILE__));
}
function add_mem_hook() {
do_action( 'mem_init' );
}
// Register default settings. If options already set, do nothing
add_option( 'mem_edit_mode', 'full' );
$all_post_types = get_post_types(array('public' => true, 'show_ui' => true));
add_option( 'mem_post_types', $all_post_types);
// Widgets
if (version_compare(phpversion(), '5.3.0', '>=')) {
include_once (plugin_dir_path(__FILE__).'widgets/event-list.php');
}
// Functions
include_once (plugin_dir_path(__FILE__).'functions/date-function.php');
// Add the hook as late as possible
add_action( 'admin_init', 'add_mem_hook', 100);
add_action( 'admin_init', 'mem_add_metaboxes', 101 );
add_action( 'admin_enqueue_scripts', 'mem_js' );
add_action( 'save_post', 'mem_save_date', 10, 2);
add_action( 'wp_ajax_mem_data', 'mem_ajax');
add_action( 'plugins_loaded', 'mem_lang_init');