Feature: Link Termine to WordPress posts with Mehr Infos button

Release 1.0.7
Standardize WordPress readme format
2026-04-17 21:49:27 +02:00 · 2026-04-15 21:44:17 +02:00 · 2026-04-15 21:36:07 +02:00 · 2026-04-15 21:26:00 +02:00
3 changed files with 174 additions and 18 deletions
--- a/includes/class-kgv-termine-plugin.php
+++ b/includes/class-kgv-termine-plugin.php
@@ -25,6 +25,7 @@ class KGV_Termine_Plugin {
        add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_assets'));
        add_action('wp_enqueue_scripts', array($this, 'enqueue_front_assets'));
        add_action('init', array($this, 'register_shortcodes'));
+        add_action('init', array($this, 'maybe_upgrade_table'));
        add_action('admin_post_kgv_save_termin', array($this, 'handle_save_termin'));
        add_action('admin_post_kgv_delete_termin', array($this, 'handle_delete_termin'));
        add_filter('query_vars', array($this, 'register_query_vars'));
@@ -51,6 +52,7 @@ class KGV_Termine_Plugin {
            is_published TINYINT(1) NOT NULL DEFAULT 1,
            created_at DATETIME NOT NULL,
            updated_at DATETIME NOT NULL,
+            post_id BIGINT UNSIGNED NULL DEFAULT NULL,
            PRIMARY KEY (id),
            KEY event_date (event_date),
            KEY is_published (is_published)
@@ -59,6 +61,40 @@ class KGV_Termine_Plugin {
        dbDelta($sql);
    }

+    public function maybe_upgrade_table() {
+        global $wpdb;
+
+        $col = $wpdb->get_results(
+            $wpdb->prepare(
+                "SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = %s AND TABLE_NAME = %s AND COLUMN_NAME = 'post_id'",
+                DB_NAME,
+                $this->table_name
+            )
+        );
+
+        if ( empty( $col ) ) {
+            require_once ABSPATH . 'wp-admin/includes/upgrade.php';
+            $charset_collate = $wpdb->get_charset_collate();
+            $sql = "CREATE TABLE {$this->table_name} (
+                id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+                title VARCHAR(255) NOT NULL,
+                event_date DATETIME NOT NULL,
+                owner VARCHAR(255) NULL,
+                location VARCHAR(255) NULL,
+                summary TEXT NULL,
+                description LONGTEXT NULL,
+                is_published TINYINT(1) NOT NULL DEFAULT 1,
+                created_at DATETIME NOT NULL,
+                updated_at DATETIME NOT NULL,
+                post_id BIGINT UNSIGNED NULL DEFAULT NULL,
+                PRIMARY KEY (id),
+                KEY event_date (event_date),
+                KEY is_published (is_published)
+            ) {$charset_collate};";
+            dbDelta($sql);
+        }
+    }
+
    public function enqueue_admin_assets($hook) {
        if (strpos((string) $hook, 'kgv-termine') === false) {
            return;
@@ -161,6 +197,8 @@ class KGV_Termine_Plugin {
        $description = wp_kses_post(wp_unslash($_POST['description'] ?? ''));
        $is_published = isset($_POST['is_published']) ? (int) wp_unslash($_POST['is_published']) : 1;
        $is_published = $is_published === 1 ? 1 : 0;
+        $post_id = isset($_POST['post_id']) ? absint($_POST['post_id']) : 0;
+        $post_id = $post_id > 0 ? $post_id : null;

        if ($title === '' || $event_date === '' || strtotime($event_date) === false) {
            $target = $id ? admin_url('admin.php?page=kgv-termine-new&termin_id=' . $id . '&message=missing') : admin_url('admin.php?page=kgv-termine-new&message=missing');
@@ -179,10 +217,11 @@ class KGV_Termine_Plugin {
            'summary' => $summary,
            'description' => $description,
            'is_published' => $is_published,
+            'post_id' => $post_id,
            'updated_at' => $now,
        );

-        $formats = array('%s', '%s', '%s', '%s', '%s', '%s', '%d', '%s');
+        $formats = array('%s', '%s', '%s', '%s', '%s', '%s', '%d', '%d', '%s');

        if ($id) {
            $wpdb->update($this->table_name, $data, array('id' => $id), $formats, array('%d'));
@@ -191,7 +230,7 @@ class KGV_Termine_Plugin {
        }

        $data['created_at'] = $now;
-        $wpdb->insert($this->table_name, $data, array('%s', '%s', '%s', '%s', '%s', '%s', '%d', '%s', '%s'));
+        $wpdb->insert($this->table_name, $data, array('%s', '%s', '%s', '%s', '%s', '%s', '%d', '%d', '%s', '%s'));

        wp_safe_redirect(admin_url('admin.php?page=kgv-termine&message=created'));
        exit;
@@ -269,6 +308,8 @@ class KGV_Termine_Plugin {
        $summary = $row ? $row->summary : '';
        $description = $row ? $row->description : '';
        $is_published = $row ? (int) $row->is_published : 1;
+        $post_id = $row && !empty($row->post_id) ? (int) $row->post_id : 0;
+        $posts = get_posts(array('post_type' => 'post', 'post_status' => 'publish', 'numberposts' => -1, 'orderby' => 'title', 'order' => 'ASC'));
        ?>
        <div class="wrap kgv-admin-wrap">
            <div class="kgv-admin-header">
@@ -312,6 +353,16 @@ class KGV_Termine_Plugin {
                            </select>
                        </div>

+                        <div class="kgv-form-field">
+                            <label for="kgv-post-id">Verknüpfter Beitrag</label>
+                            <select id="kgv-post-id" name="post_id">
+                                <option value="0">— kein Beitrag —</option>
+                                <?php foreach ($posts as $p) : ?>
+                                    <option value="<?php echo esc_attr($p->ID); ?>" <?php selected($post_id, $p->ID); ?>><?php echo esc_html($p->post_title); ?></option>
+                                <?php endforeach; ?>
+                            </select>
+                        </div>
+
                        <div class="kgv-form-field kgv-form-field-full">
                            <label for="kgv-summary">Kurzbeschreibung</label>
                            <textarea id="kgv-summary" name="summary" rows="3"><?php echo esc_textarea($summary); ?></textarea>
@@ -372,6 +423,7 @@ class KGV_Termine_Plugin {
        $atts = shortcode_atts(array(
            'limit' => 0,
            'detail' => 1,
+            'base_url' => '',
        ), $atts, 'kgv_termine');

        $detail_id = absint(get_query_var('kgv_termin'));
@@ -379,7 +431,7 @@ class KGV_Termine_Plugin {
            $detail_id = absint(wp_unslash($_GET['kgv_termin']));
        }

-        $base_url = $this->get_current_page_url(false);
+        $base_url = $this->resolve_termine_base_url($atts['base_url']);

        if ($detail_id && (int) $atts['detail'] === 1) {
            return $this->render_detail_by_id($detail_id, $base_url);
@@ -410,7 +462,14 @@ class KGV_Termine_Plugin {
            if (!empty($row->summary)) {
                echo '<div class="kgv-termin-excerpt">' . esc_html($row->summary) . '</div>';
            }
-            echo '<div class="kgv-termin-actions"><a class="kgv-termin-btn" href="' . esc_url($link) . '">Details ansehen</a></div>';
+            echo '<div class="kgv-termin-actions"><a class="kgv-termin-btn" href="' . esc_url($link) . '">Details ansehen</a>';
+            if (!empty($row->post_id)) {
+                $post_url = get_permalink((int) $row->post_id);
+                if ($post_url) {
+                    echo '<a class="kgv-termin-btn kgv-termin-btn-secondary" href="' . esc_url($post_url) . '">Mehr Infos</a>';
+                }
+            }
+            echo '</div>';
            echo '</div>';
            echo '</article>';
        }
@@ -460,6 +519,12 @@ class KGV_Termine_Plugin {
            echo '<p class="kgv-termin-summary"><strong>' . esc_html($row->summary) . '</strong></p>';
        }
        echo '<div class="kgv-termin-content">' . wpautop(wp_kses_post($row->description)) . '</div>';
+        if (!empty($row->post_id)) {
+            $post_url = get_permalink((int) $row->post_id);
+            if ($post_url) {
+                echo '<div class="kgv-termin-more-info"><a class="kgv-termin-btn" href="' . esc_url($post_url) . '">Mehr Infos</a></div>';
+            }
+        }
        echo '</div>';
        echo '</article>';
        return ob_get_clean();
@@ -470,6 +535,7 @@ class KGV_Termine_Plugin {
 public function render_sidebar_shortcode($atts) {
    $atts = shortcode_atts(array(
        'limit' => 5,
+        'base_url' => '',
    ), $atts, 'kgv_termine_sidebar');

    $rows = $this->get_frontend_rows(max(1, min(20, absint($atts['limit']))));
@@ -478,7 +544,7 @@ public function render_sidebar_shortcode($atts) {
        return '<div class="kgv-sidebar-box">Keine Termine</div>';
    }

-    $base_url = $this->get_current_page_url(false);
+    $base_url = $this->resolve_termine_base_url($atts['base_url']);

    ob_start();
    echo '<div class="kgv-sidebar-box">';
@@ -499,6 +565,58 @@ public function render_sidebar_shortcode($atts) {

    return ob_get_clean();
 }
+
+    private function resolve_termine_base_url($base_url = '') {
+        if (!empty($base_url)) {
+            $clean_url = esc_url_raw((string) $base_url);
+            if ($clean_url) {
+                return remove_query_arg(array_keys($_GET), $clean_url);
+            }
+        }
+
+        $shortcode_page_url = $this->find_termine_shortcode_page_url();
+        if ($shortcode_page_url) {
+            return $shortcode_page_url;
+        }
+
+        return $this->get_current_page_url(false);
+    }
+
+    private function find_termine_shortcode_page_url() {
+        static $cached_url = null;
+
+        if (null !== $cached_url) {
+            return $cached_url;
+        }
+
+        global $wpdb;
+
+        $like = '%' . $wpdb->esc_like('[kgv_termine') . '%';
+        $post_id = (int) $wpdb->get_var(
+            $wpdb->prepare(
+                "SELECT ID
+                FROM {$wpdb->posts}
+                WHERE post_status = 'publish'
+                    AND post_type IN ('page', 'post')
+                    AND post_content LIKE %s
+                ORDER BY CASE WHEN post_type = 'page' THEN 0 ELSE 1 END, ID ASC
+                LIMIT 1",
+                $like
+            )
+        );
+
+        if ($post_id) {
+            $permalink = get_permalink($post_id);
+            if ($permalink) {
+                $cached_url = remove_query_arg(array_keys($_GET), $permalink);
+                return $cached_url;
+            }
+        }
+
+        $cached_url = '';
+        return $cached_url;
+    }
+
    private function get_current_page_url($with_query = true) {
        $page_url = '';

--- a/kgv-termine-plugin.php
+++ b/kgv-termine-plugin.php
@@ -5,9 +5,11 @@
 * Description: Eigene Terminverwaltung mit separatem Admin-Interface, Frontend-Liste und Detailansicht per Shortcode.
 * Update URI: https://git.apex-project.de/Wordpress_Plugins/KGV-Termine.git
 * Gitea Plugin URI: https://git.apex-project.de/Wordpress_Plugins/KGV-Termine.git
- * Version: 1.0.5
+ * Version: 1.0.8
 * Author: Ronny Grobel
 * Author URI: https://apex-project.de/
+ * License: GPL v2 or later
+ * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain: kgv-termine-admin
 * Requires Plugins: KGV-Updater
 */
--- a/readme.txt
+++ b/readme.txt
@@ -1,16 +1,52 @@
-KGV Termine – WordPress Plugin
+=== KGV Termine ===
+Contributors: ronnygrobel
+Tags: events, termine, kalender, verein, shortcode
+Requires at least: 6.0
+Tested up to: 6.8
+Stable tag: 1.0.8
+Requires PHP: 7.2
+License: GPLv2 or later
+License URI: https://www.gnu.org/licenses/gpl-2.0.html

-Beschreibung:
-KGV Termine ist ein WordPress-Plugin zur Verwaltung und Anzeige von Terminen im Vereinsumfeld.
+Terminverwaltung mit Frontend-Liste, Detailansicht und Sidebar-Shortcode.

-Installation:
-1. Plugin in den Ordner `wp-content/plugins/` hochladen
-2. In WordPress unter `Plugins` aktivieren
-3. Die Termine anschließend im Backend verwalten
+== Description ==

-Funktionen:
- Terminverwaltung im WordPress-Backend
- Ausgabe der Termine im Frontend
- einfache Pflege für Vereins- und Veranstaltungsseiten
+KGV Termine verwaltet Vereins- und Veranstaltungsdaten im Backend und gibt sie im Frontend ueber Shortcodes aus.

-Version: 1.0.2
+= Features =
+
+* Terminverwaltung im WordPress-Backend
+* Frontend-Liste und Detailansicht
+* Sidebar-Ausgabe naechster Termine
+* Flexible Shortcodes fuer Uebersicht und Details
+
+== Installation ==
+
+1. Plugin in `wp-content/plugins/KGV-Termine/` hochladen.
+2. Plugin aktivieren.
+3. Termine im Backend anlegen.
+4. Shortcodes auf Seiten einbinden.
+
+== Frequently Asked Questions ==
+
+= Wie gebe ich die Terminliste aus? =
+
+Mit `[kgv_termine]`.
+
+= Gibt es eine Sidebar-Ausgabe? =
+
+Ja, mit `[kgv_termine_sidebar]`.
+
+== Changelog ==
+
+= 1.0.8 =
+* Feature: Verknüpfung zu WordPress-Beiträgen. Im Termin kann ein Beitrag ausgewählt werden, der im Frontend als "Mehr Infos"-Button angezeigt wird.
+
+= 1.0.7 =
+* Versionsabgleich zwischen Plugin-Header und Readme.
+* WordPress-Readme-Format weiter vereinheitlicht.
+
+= 1.0.6 =
+* Detail-Link-Logik verbessert, damit Termin-Links auch ausserhalb der Terminseite korrekt funktionieren.
+* WordPress-Readme auf Standardformat umgestellt.
Author	SHA1	Message	Date
Ronny Grobel	f31ac0da4e	Feature: Link Termine to WordPress posts with Mehr Infos button	2026-04-17 21:49:27 +02:00
Ronny Grobel	7f0847b78a	Release 1.0.7	2026-04-15 21:44:17 +02:00
Ronny Grobel	b628cde7e4	Standardize WordPress readme format	2026-04-15 21:36:07 +02:00
Ronny Grobel	56c88eb4b3	Fix detail links outside Termine page and bump version to 1.0.6	2026-04-15 21:26:00 +02:00