185 lines
6 KiB
PHP
185 lines
6 KiB
PHP
<?php
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/**
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* Plugin Name: Kal3000 Google Calender Importer
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* Plugin URI: https://github.com/hmilz/kal3000-gcal-import
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* Description: Imports and Merges an Arbitrary Number of Public Google Calendars into Kal3000
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* Version: 0.1
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* Author: Harald Milz <hm@seneca.muc.de>
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* License: GPLv3
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* License URI: https://www.gnu.org/licenses/gpl-3.0
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* Domain Path: /languages
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*
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* {Plugin Name} is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* any later version.
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*
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* {Plugin Name} is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with {Plugin Name}. If not, see {License URI}.
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*/
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defined( 'ABSPATH' ) or die( 'No script kiddies please!' );
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define ('GCAL_TABLE', 'gcal_import');
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define ('GCAL_GEO_TABLE', 'gcal_import_geocache');
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// The real work goes here.
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require_once dirname( __FILE__ ) . "/gcal-import-worker.php";
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require_once dirname( __FILE__ ) . "/gcal-import-admin.php";
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// create custom scheduler from custom option
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add_filter( 'cron_schedules', 'gcal_cron_interval' );
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function gcal_cron_interval( $schedules ) {
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$interval = 60 * get_option( '_gcal_interval' ); // wir speichern Minuten
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$schedules['gcal_interval'] = array(
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'interval' => $interval,
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'display' => esc_html__( 'GCal fetch interval' ),
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);
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return $schedules;
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}
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/**
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* Initializes the plugin and creates a table
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*
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* @since 0.1.0
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*
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* - gcal_category - name of the calendar, for later per-unit display
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* - gcal_link - the public or private .ics link
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* - gcal_veranstalter - ?
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* - gcal_active - flag if a calendar is active or not. Default active.
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*
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* Since there is no install hook in WP, we will use the activation hook for both.
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*/
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function gcal_import_activate()
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{
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error_log ("gcal_import_activate started");
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global $wpdb;
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// CREATE table if it does not exist already.
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$table = $wpdb->prefix.GCAL_TABLE;
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$query = "CREATE TABLE IF NOT EXISTS $table (
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id INT(9) NOT NULL AUTO_INCREMENT,
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gcal_category VARCHAR(32) NOT NULL,
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gcal_link VARCHAR(256) NOT NULL,
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gcal_active INT(9) DEFAULT 1,
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UNIQUE KEY id (id)
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);";
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$wpdb->query($query);
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// Populate table
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// this will later be set by the admin page
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// empty it first to prevent doublettes
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$wpdb->query("DELETE FROM $table WHERE 1=1");
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$wpdb->query("INSERT INTO $table(gcal_category, gcal_link, gcal_active)
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VALUES('Kreisverband', 'https://calendar.google.com/calendar/ical/gruene.freising%40gmail.com/public/basic.ics', '1')");
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$wpdb->query("INSERT INTO $table(gcal_category, gcal_link, gcal_active)
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VALUES('Neufahrn', 'https://calendar.google.com/calendar/ical/gruene.neufahrn%40gmail.com/public/basic.ics', '1')");
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$wpdb->query("INSERT INTO $table(gcal_category, gcal_link, gcal_active)
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VALUES('Holledau', 'https://calendar.google.com/calendar/ical/gruene.holledau%40gmail.com/public/basic.ics', '0')");
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/*
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$wpdb->query("INSERT INTO $table(gcal_category, gcal_link, gcal_active)
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VALUES('ov-freising', '/tmp/neufahrn.ics', '1')");
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*/
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// Create some plugin options in wp_options if they don't exist already
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// add_option( '_gcal_geocoding', 'off', '', 'no' ); // off, official, inofficial, or OSM (experimental)
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// add_option( '_gcal_apikey', '', '', 'no' ); // default empty
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// add_option( '_gcal_interval', '5', '', 'no' ); // default 60 minutes
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// CREATE geocaching table if it does not exist already.
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// the location field will be used only during development and debugging, and will be omitted in production.
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$table = $wpdb->prefix.GCAL_GEO_TABLE;
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$query = "CREATE TABLE IF NOT EXISTS $table (
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id INT(9) NOT NULL AUTO_INCREMENT,
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gcal_geo_location VARCHAR(128) NOT NULL,
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gcal_geo_hash VARCHAR(40) NOT NULL,
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gcal_geo_lat VARCHAR(20) NOT NULL,
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gcal_geo_lon VARCHAR(20) NOT NULL,
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gcal_geo_timestamp INT(16) NOT NULL,
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UNIQUE KEY id (id)
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);";
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$wpdb->query($query);
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$table = $wpdb->prefix.GCAL_TABLE;
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// do it once now! Won't work if the table hasn't been populated yet.
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$result = $wpdb->query("SELECT gcal_category FROM $table");
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if ($result != 0) {
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// gcal_import_worker();
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}
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// and start the scheduler;
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// in production, we will do this hourly.
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if ( ! wp_next_scheduled( 'gcal_import_worker_hook' ) ) {
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wp_schedule_event( time(), 'gcal_interval', 'gcal_import_worker_hook' );
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}
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error_log ("gcal_import_activate finished");
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}
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register_activation_hook( __FILE__, 'gcal_import_activate' );
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/**
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* Deactivate unregisters the scheduling function.
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*
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* @since 0.1.0
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*
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*/
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function gcal_import_deactivate()
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{
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error_log ("gcal_import_deactivate started");
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wp_clear_scheduled_hook('gcal_import_worker_hook');
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error_log ("gcal_import_deactivate finished");
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}
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register_deactivation_hook( __FILE__, 'gcal_import_deactivate' );
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/**
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* Uninstall drops our DB table
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*
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* @since 0.1.0
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*
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*/
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function gcal_import_uninstall()
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{
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error_log ("gcal_import_uninstall started");
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// can we uninstall without deactivating first?
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// gcal_import_deactivate;
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global $wpdb;
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// the category / link table and the geo cache
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$tables = array( GCAL_TABLE, GCAL_GEO_TABLE );
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foreach ( $tables AS $table ) {
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$table = $wpdb->prefix . $table;
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$wpdb->query( "DROP TABLE IF EXISTS $table" );
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}
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// and the options.
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delete_option ( 'gcal_options' );
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// $options = array( '_gcal_geocoding', '_gcal_apikey', '_gcal_interval' );
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// foreach ( $options AS $option ) {
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// delete_option( $option );
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// }
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// error_log ("gcal_import_uninstall finished");
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}
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register_uninstall_hook( __FILE__, 'gcal_import_uninstall' );
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