From 6348e70daa113e8b3203de8fbc919d08c90d972e Mon Sep 17 00:00:00 2001
From: Mike Macgirvin <mike@macgirvin.com>
Date: Thu, 1 Jul 2010 16:48:07 -0700
Subject: Initial checkin

---
 include/datetime.php | 145 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 include/datetime.php

(limited to 'include/datetime.php')

diff --git a/include/datetime.php b/include/datetime.php
new file mode 100644
index 000000000..f75193b1b
--- /dev/null
+++ b/include/datetime.php
@@ -0,0 +1,145 @@
+<?php
+
+if(! function_exists('timezone_cmp')) {
+function timezone_cmp($a, $b) {
+	if(strstr($a,'/') && strstr($b,'/')) {
+		if ($a == $b) return 0;
+		return ($a < $b) ? -1 : 1;
+	}
+	if(strstr($a,'/')) return -1;
+	if(strstr($b,'/')) return  1;
+	if ($a == $b) return 0;
+	return ($a < $b) ? -1 : 1;
+}}
+
+
+if(! function_exists('select_timezone')) {
+function select_timezone($current = 'America/Los_Angeles') {
+
+	$timezone_identifiers = DateTimeZone::listIdentifiers();
+	
+	$o ='<select id="timezone_select" name="timezone">';
+
+	usort($timezone_identifiers, 'timezone_cmp');
+	$continent = '';
+	foreach($timezone_identifiers as $value) {
+		$ex = explode("/", $value);
+		if(count($ex) > 1) {
+			if($ex[0] != $continent) {
+				if($continent != '')
+					$o .= '</optgroup>';
+				$continent = $ex[0];
+				$o .= "<optgroup label=\"$continent\">";
+			}
+			if(count($ex) > 2)
+				$city = substr($value,strpos($value,'/')+1);
+			else
+				$city = $ex[1];
+		}
+		else {
+			$city = $ex[0];
+			if($continent != 'Miscellaneous') {
+				$o .= '</optgroup>';
+				$continent = 'Miscellaneous';
+				$o .= "<optgroup label=\"$continent\">";	
+			}
+		}
+		$city = str_replace('_', ' ', $city);
+		$selected = (($value == $current) ? " selected=\"selected\" " : "");
+		$o .= "<option value=\"$value\" $selected >$city</option>";
+	}    
+	$o .= '</optgroup></select>';
+	return $o;
+}}
+
+
+if(! function_exists('datetime_convert')) {
+function datetime_convert($from = 'UTC', $to = 'UTC', $s = 'now', $fmt = "Y-m-d H:i:s") {
+  $d = new DateTime($s, new DateTimeZone($from));
+  $d->setTimeZone(new DateTimeZone($to));
+  return($d->format($fmt));
+}}
+
+
+
+if(! function_exists('datesel')) {
+function datesel($pre,$ymin,$ymax,$allow_blank,$y,$m,$d) {
+
+	$o = '';
+	$o .= "<select name=\"{$pre}year\" class=\"{$pre}year\" size=\"1\">";
+	if($allow_blank) {
+		$sel = (($y == '') ? " selected=\"selected\" " : "");
+		$o .= "<option value=\"\" $sel></option>";
+	}
+
+	for($x = $ymin; $x <= $ymax; $x ++) {
+		$sel = (($x == $y) ? " selected=\"selected\" " : "");
+		$o .= "<option value=\"$x\" $sel>$x</option>";
+	}
+  
+	$o .= "</select>-<select name=\"{$pre}month\" class=\"{$pre}month\" size=\"1\">";
+	for($x = 1; $x <= 12; $x ++) {
+		$sel = (($x == $m) ? " selected=\"selected\" " : "");
+		$o .= "<option value=\"$x\" $sel>$x</option>";
+	}
+
+	$o .= "</select>-<select name=\"{$pre}day\" class=\"{$pre}day\" size=\"1\">";
+	for($x = 1; $x <= 31; $x ++) {
+		$sel = (($x == $d) ? " selected=\"selected\" " : "");
+		$o .= "<option value=\"$x\" $sel>$x</option>";
+	}
+
+	$o .= "</select>";
+	return $o;
+}}
+
+
+// TODO rewrite this buggy sucker
+function relative_date($posted_date) {
+
+	$localtime = datetime_convert('UTC',date_default_timezone_get(),$posted_date); 
+    
+	$in_seconds = strtotime($localtime);
+
+    	$diff = time() - $in_seconds;
+    
+	$months = floor($diff/2592000);
+    	$diff -= $months*2419200;
+    	$weeks = floor($diff/604800);
+    	$diff -= $weeks*604800;
+    	$days = floor($diff/86400);
+    	$diff -= $days*86400;
+    	$hours = floor($diff/3600);
+    	$diff -= $hours*3600;
+    	$minutes = floor($diff/60);
+    	$diff -= $minutes*60;
+    	$seconds = $diff;
+
+
+    if ($months>0) {
+        // over a month old,
+        return 'over a month ago';
+    } else {
+        if ($weeks>0) {
+            // weeks and days
+            $relative_date .= ($relative_date?', ':'').$weeks.' week'.($weeks!=1 ?'s':'');
+
+        } elseif ($days>0) {
+            // days and hours
+            $relative_date .= ($relative_date?', ':'').$days.' day'.($days!=1?'s':'');
+
+        } elseif ($hours>0) {
+            // hours and minutes
+            $relative_date .= ($relative_date?', ':'').$hours.' hour'.($hours!=1?'s':'');
+
+        } elseif ($minutes>0) {
+            // minutes only
+            $relative_date .= ($relative_date?', ':'').$minutes.' minute'.($minutes!=1?'s':'');
+        } else {
+            // seconds only
+            $relative_date .= ($relative_date?', ':'').$seconds.' second'.($seconds!=1?'s':'');
+        }
+    }
+    // show relative date and add proper verbiage
+    return $relative_date.' ago';
+}
-- 
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