The beginnings of an events component. Still needs some attention

components/events.php

+<?php
+/* 
+ * Main events page, including admin functions
+ */
+
+
+$permission = "bananas";
+$eventtable = "events";
+$eventcategories = array("Talks","Gaming","Social","Misc");
+
+$smarty->assign("event_categories", $eventcategories);
+
+$events_index = array_search("Events", $pathlist);
+
+if (isset($pathlist[$events_index + 1])) {
+	list($eventcat, $eventid) = split("_", $pathlist[$events_index + 1]);
+	if (!in_array($eventcat, $eventcategories)) {
+		trigger_error("Invalid category specified", E_USER_ERROR);
+		unset($eventcat, $eventid);
+	} elseif (!ctype_digit($eventid)) {
+		trigger_error("Invalid event specified", E_USER_ERROR);
+		print_r($eventid);
+		unset($eventcat, $eventid);
+	}
+}
+
+if (isset($session->groups[$permission])) {
+	$smarty->assign("editable", true); 
+	$action = @$_REQUEST['action'];
+
+	// process form actions with side-effects first
+	switch ($action) {
+		case "save":
+			$record['name'] = $_REQUEST['name'];
+			$record['description'] = $_REQUEST['description'];
+			$record['location'] = $_REQUEST['location'];
+
+			// reconstruct date/time
+			$datetime = $_REQUEST['Date_Year'];
+			$datetime .= str_pad((int) $_REQUEST['Date_Month'],2,'0',STR_PAD_LEFT);
+			$datetime .= str_pad((int) $_REQUEST['Date_Day'],2,'0',STR_PAD_LEFT);
+
+			$datetime .= " ".$_REQUEST['Time_Hour'];
+			$datetime .= ":".$_REQUEST['Time_Minute'];
+
+			$record['whn'] = $datetime;
+			$record['category'] = $_REQUEST['category'];
+			$id = @$_REQUEST['id'];
+
+			// this may be an existing event which needs to be updated
+			if (ctype_digit($id)) {
+				$DB->AutoExecute($eventtable, $record, 'UPDATE', "id=".$id);
+			} else {
+				$DB->AutoExecute($eventtable, $record, 'INSERT');
+			} 
+
+			unset($action);
+			break;
+    } 
+}
+
+if (isset($session->groups[$permission]) && isset($action)) {
+	switch($action) {
+		case "create":
+			$event = array("id" => "*");
+			$body = $smarty->fetch("event_edit.tpl");
+			break; 
+		case "edit":
+			if (isset($eventcat) && isset($eventid)) {
+				$event = $DB->GetRow("SELECT * FROM $eventtable WHERE id=?", array($eventid)); 
+				$smarty->assign("event", $event);
+				$body = $smarty->fetch("event_edit.tpl");
+			}
+			break;
+	}
+} else {
+	// not logged in, or no special action required 
+	if (isset($eventcat) && isset($eventid)) {
+		$event = $DB->GetRow("SELECT * FROM $eventtable WHERE id=?", array($eventid));
+		$smarty->assign("event", $event);
+		$body = $smarty->fetch("event.tpl");
+	} else {
+		$events = $DB->GetAll("SELECT *,date_part('epoch', whn) as whn_timestamp 
+					FROM $eventtable WHERE date_trunc('day', whn) >= date_trunc('day',NOW()) ORDER BY whn ASC");
+		$oldevents = $DB->GetAll("SELECT *,date_part('epoch', whn) as whn_timestamp 
+					FROM $eventtable WHERE date_trunc('day', whn) < date_trunc('day', NOW()) ORDER BY whn DESC LIMIT 3");
+		$smarty->assign("events", $events);
+		$smarty->assign("oldevents", $oldevents);
+		$body = $smarty->fetch("events.tpl");
+	}
+} 
+
+$smarty->assign("body", $body);
+$smarty->assign("title", "Events");
+$smarty->assign("secondary", file_get_contents("../static/fragments/Events-secondary.txt"));
+
+
+?>

components/events_ical.php

+<?php
+require_once("../lib/iCalcreator.class.php");
+
+// disable site template
+$no_template = TRUE;
+
+// initialise calendar
+$cal = new vcalendar();
+$cal->setConfig('unique_id', 'sucs.org');
+$cal->setProperty('method', 'PUBLISH');
+$cal->setProperty('x-wr-calname', "SUCS Events Calendar");
+$cal->setProperty('X-WR-CALDESC', 
+		"Upcoming events for members of the Swansea University Computer Society"); 
+$cal->setProperty('X-WR-TIMEZONE', 'Europe/London');
+
+//populate with upcoming events
+$events = $DB->GetAll("SELECT * FROM events WHERE 
+				date_trunc('day', whn) >= date_trunc('day', NOW()) ORDER BY whn ASC");
+
+foreach($events as $event) {
+	$vevent = new vevent();
+	$vevent->setProperty('dtstart', $event['whn']);
+	$vevent->setProperty('LOCATION', $event['location']);
+	$vevent->setProperty('summary', $event['name']);
+	$vevent->setProperty('description', $event['description']); 
+	$vevent->setProperty('categories', $event['category']);
+	$cal -> setComponent($vevent);
+}
+
+//spit out a shiny new iCal file
+$cal->returnCalendar();
+
+
+?>

templates/event.tpl

+<h1>{$event.name}</h1>
+{$event.description}
+{$event.location}
+{$event.whn}

templates/event_edit.tpl

+<form class="admin" method="post" action="{$baseurl}{$path}">
+<input type="hidden" name="action" value="save" />
+<input type="hidden" name="id" value="{$event.id}" />
+<div class="row">
+	<label for="name">Event Name</label>
+	<span class="textinput"><input type="text" name="name" {if $event.name}value="{$event.name}"{/if} /></span>
+</div>
+<div class="row">
+	<label>Date</label> 
+	<span class="textinput">{html_select_date}</span>
+</div>
+<div class="row">
+	<label>Time</label>
+	<span class="textinput">{html_select_time display_seconds=false minute_interval=5}</span>
+</div>
+<div class="row">
+	<label for="category">Event Type</label>
+	<span class="textinput">
+		{foreach from=$event_categories item=category}
+		<input type="radio" name="category" value="{$category}" /> {$category}<br />
+		{/foreach}
+	</span>
+</div>
+<div class="row">
+	<label for="location">Location</label>
+	<span class="textinput"><input type="text" name="location" {if $event.location}value="{$event.location}"{/if} /></span>
+</div>
+<div class="row">
+	<label for="description">Description</label>
+	<span class="textinput"><textarea name="description">{if $event.description}{$event.description}{/if}</textarea></span>
+</div>
+<div class="row">
+<input type="submit" value="Save" />
+</div>
+
+</form>

templates/events.tpl

+{if $editable}
+<a href="?action=create">Add Event</a>
+{/if}
+<div class="box">
+<div class="boxhead"><h2>Upcoming Events</h2></div>
+<div class="boxcontent">
+{foreach from=$events item=event}
+<h3>{$event.name}
+{if $editable}<a href="{$event.category}_{$event.id}?action=edit">(Edit)</a>{/if} 
+</h3>
+{$event.whn_timestamp|date_format:"%A, %e %B"} @ {$event.location}
+<p>
+{$event.description}
+</p>
+{/foreach}
+</div>
+<div class="hollowfoot"><div><div></div></div></div>
+</div>
+
+<hr />
+
+<h2>Recent Events</h2>
+<p><small>You missed them. Too bad!</small></p>
+{foreach from=$oldevents item=event}
+<h4>{$event.name} - <small>{$event.whn_timestamp|date_format:"%A, %e %B"}</small></h4>
+{/foreach}