NB-Public/WolKal3000
Archived
11
1
Fork 0
Code Issues Pull requests Releases 2 Wiki Activity

rewrote entire update/delete logic

Browse source
This commit is contained in:
Harald Milz 2019-03-29 14:52:44 +01:00
parent 410793efe6
commit 29a9a35838
1 changed files with 83 additions and 43 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

126
gcal-import-worker.php
View file

@ -44,40 +44,61 @@ function gcal_import_worker() {
$unique_id = 'gcal_feed_' . $term->name;
error_log ("found event category $unique_id");
if ( empty ( $options[$unique_id] ) || $options[$unique_id] == '' ) {
error_log ( "event category $term->name is not set; next");
error_log ( "event category $term->name is not known; next");
continue;
}
// die Terminposts sind in postmeta:_gcal_category markiert:
/* $table = $wpdb->prefix . 'postmeta';
$post_ids = $wpdb->get_results("SELECT post_id FROM $table WHERE
meta_key = '_gcal_category' AND meta_value = '$unique_id'");
*/
/*
$term_id = $term->term_id ;
$post_ids = get_objects_in_term( $term_id, 'termine_type', $args );
foreach ($post_ids as $post_id) {
error_log ("trashing post_id $post_id");
wp_trash_post($post_id); // should we DELETE here?
}
*/
The update and delete logic goes as follows:
- before we start updating, we mark all entries from this event category with recent = false. (i.e. outdated).
- when we scan the ICS feed,
- if an entry with the same UID exists and was not updated in the meantime: do nothing.
- if it was updated in the meantime, we update our entry and set recent to true
- if no such entry exists, we insert a new one and set recent to true
- when we're finished, we delete all entries from this event category which still have recent set to false.
Apparently, they were deleted on the remote end.
*/
// die ganze Lösch-Logik ist Mist, weil immer wieder die gleichen termine gelöscht und neu angelegt werden, was Last auf WP bringt.
// besser: wir merken uns je Kalendereintrag in postmeta die Google-UID und ein Flag "recent".
// - zu Beginn eines Update-Laufs werden die recent aller Google-UIDs auf false gesetzt.
// - wenn ein Eintrag schon existiert und die ICS-Version neuer ist als zeitstempel: nur updaten
// - wenn UID noch nicht existiert, Termin neu anlegen
// - in beiden Fällen recent = true setzen.
// - am Ende alle Google-UID mit recent==false löschen. Die kamen im ICS-Feed nicht mehr vor.
// d.h. wir merken uns in postmeta zusätzlich die _gcal_uid und _gcal_recent.
// so we look for all published event posts in the event category
$args = array (
'post_type' => 'termine',
'meta_key' => '_gcal_category',
'meta_value' => $term->name,
'post_status' => 'publish',
)
);
$post_ids = get_posts( $args );
// and set their recent flag to false.
foreach( $post_ids as $post_id ) {
update_post_meta( $post_id, '_gcal_recent', false, );
}
// TODO: alle Posts der Kategorie suchen, die eine UID haben, und deren _recent auf false setzen.
// jetzt die neuen Posts anlegen
// now we process the current feed.
$link = $options[$unique_id];
error_log ("now importing event cat $term->name, link $link");
gcal_import_do_import($term->name, $link);
// TODO: alle Posts mit der Kategorie, die eine UID haben und recent=false, löschen.
// look if there are any published event posts in the current event category which were not posted anew or updated (ie recent == false)
$args = array (
'post_type' => 'termine',
'post_status' => 'publish',
'meta_query' => array(
array(
'key' => '_gcal_category',
'value' => $term->name,
),
array(
'key' => '_gcal_recent',
'value' => false,
),
)
);
$post_ids = get_posts( $args );
// and trash them.
foreach( $post_ids as $post_id ) {
wp_trash_post( $post_id );
error_log ("Event post $post_id gelöscht.");
}
}
@ -112,7 +133,7 @@ function gcal_import_do_import($category, $link) {
wp_set_auth_cookie( $user_id );
}
foreach ($cal->getSortedEvents() as $r) {
// wenn DTEND in der Vergangenheit liegt, nicht mehr posten. Next.
// if DTEND lies in the past, this event has ended. Ignore.
$now = new DateTime();
// $dtend = new DateTime($r['DTEND']);
$summary = $r['SUMMARY'];
@ -220,7 +241,7 @@ function gcal_import_do_import($category, $link) {
'_zeitstempel' => $zeitstempel,
'_gcal_uid' = $r['UID'],
'_gcal_recent' = true,
'_gcal_created' = new DateTime('now')->format('d.m.Y H:i'),
'_gcal_created' = $r['LAST-MODIFIED']->format('d.m.Y H:i'),
'_gcal_category' => $category,
);
@ -228,24 +249,43 @@ function gcal_import_do_import($category, $link) {
$file = dirname (__FILE__) . '/' . $post->post_name . '-finished.txt';
file_put_contents ( $file, var_export ($post, TRUE) );
$post_id = // geht mit get_posts. SELECT post_id from postmeta WHERE _gcal_uid = $r['UID']
// existiert $postid? Wenn nicht -> insert_post
// wenn ja, prüfen, ob $r['LAST-MODIFIED'] > _created
// $r['LAST-MODIFIED'] > _created: update_post
// $r['LAST-MODIFIED'] == _created: nichts tun
// $r['LAST-MODIFIED'] < _created: schwerer Fehler, should not happen! nichts tun!
if ( true ) { // Bedingung?
$post->ID = 0 ; // vorhandene post_id holen!
$post_id = wp_update_post( $post, false );
} else { // not (exist)
// so we have the new posts's attributes. Now we need to decide what to do with it. Jetzt müssen wir entscheiden, was damit zu tun ist.
// first, we try to find a published post with the same UID:
$args = array (
'post_type' => 'termine',
'meta_key' => '_gcal_uid',
'meta_value' => $r['UID'],
'post_status' => 'publish',
)
);
$post_ids = get_posts( $args );
// did we find one? (It should really be only one!)
if ( empty ( $post_ids ) ) {
// ok, none found, so we insert the new one
$post_id = wp_insert_post( $post, false );
}
// und dann noch die Terminkategorie zuweisen:
wp_set_object_terms( $post_id, $category, 'termine_type' );
error_log ("posted new post $post_id");
// return ($post_id);
// and assign the taxonomy type and event category.
wp_set_object_terms( $post_id, $category, 'termine_type' );
error_log ("posted new post $post_id");
} else {
// good, the post exists already.
$post_id = $post_ids[0];
$created = get_post_meta( $post_id, '_gcal_created' );
// was it updated on the remote calendar? (was if modified after it was created remotely?)
if ( $r['LAST-MODIFIED'] > $created ) {
// yes, so we update the existing post. We don't care _what_ changed.
$post->ID = $post_id ;
$post_id = wp_update_post( $post, false );
error_log ("updated post $post_id");
} elseif ( $r['LAST-MODIFIED'] == $created ) {
// it was not modified after we created it, so we do nothing!
} elseif ( $r['LAST-MODIFIED'] < $created ) {
// iiiiek! A time reversal or a secret time machine! That should not happen!
error_log ("Warnung: merkwürdiges last-modified Datum beim Update von Post $post_id!");
}
}
// and on the next entry.
}
// foreach end. we're finished.
}