X-Git-Url: http://git.roojs.org/?a=blobdiff_plain;f=DataObjects%2FCore_curr_rate.php;h=5b6858cfbf1fb3bae92d5174f982871de11bac61;hb=1524f8b36295809a3eedd6da3c6494f8aa0d86f5;hp=f274fac348a5d97c4466604f6878e08fd1f99be0;hpb=99077f0e4431d0825a180054cd27fc94fe3619aa;p=Pman.Core diff --git a/DataObjects/Core_curr_rate.php b/DataObjects/Core_curr_rate.php index f274fac3..5b6858cf 100644 --- a/DataObjects/Core_curr_rate.php +++ b/DataObjects/Core_curr_rate.php @@ -2,7 +2,7 @@ /** * Table Definition for core_curr_rate */ -require_once 'DB/DataObject.php'; +class_exists('DB_DataObject') ? '' : require_once 'DB/DataObject.php'; class Pman_Core_DataObjects_Core_curr_rate extends DB_DataObject { @@ -12,7 +12,7 @@ class Pman_Core_DataObjects_Core_curr_rate extends DB_DataObject public $__table = 'core_curr_rate'; // table name public $id; public $curr; - public $rate; + public $rate; // always to USD... public $from_dt; public $to_dt; @@ -24,6 +24,9 @@ class Pman_Core_DataObjects_Core_curr_rate extends DB_DataObject } + + + /** * current rate fetching * @@ -32,26 +35,31 @@ class Pman_Core_DataObjects_Core_curr_rate extends DB_DataObject * this just get's the current rates from the ecb.. * * - */ - - var $rates = array(); + */ function loadRates() { + static $checked = false; + if ($checked ) { + return true; + } + $checked = true; + // how often do we need to know this..? // let's assume we do it once a week.. $x = DB_DataObject::Factory('core_curr_rate'); - $x->whereAdd('to_date > NOW()'); + $x->whereAdd('to_dt > NOW()'); if ($x->count()) { // got some data for beyond today.. + return; } // load our default rates to start with.. $dom = simplexml_load_file(dirname(__FILE__).'/../eurofxref-daily.xml'); $rates['EUR'] = 1.0; - $rates['TWD'] = 46.7008412; - $rates['VND'] = 26405.3; + $rates['TWD'] = 46.7008412; // taiwan dorlar + $rates['VND'] = 25282.24; // veitnam dong? foreach($dom->Cube->Cube->Cube as $c) { @@ -63,26 +71,120 @@ class Pman_Core_DataObjects_Core_curr_rate extends DB_DataObject // now try loading from latest.. - $target = ini_get('session.save_path').'/eurofxref-daily.xml'; - - if (!file_exists($target) || filemtime($target) < (time() - 60*60*24)) { - // this may fail... - $f = @file_get_contents('http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml'); - if (!strlen($f)) { - return; - } - + + // this may fail... + $f = @file_get_contents('http://www.ecb.europa.eu/stats/eurofxref/eurofxref-daily.xml'); + if (!strlen($f)) { + return false; + } - } - $dom = simplexml_load_file($target); + $dom = simplexml_load_string($f); $rates['EUR'] = 1.0; - $rates['TWD'] = 46.7008412; - $rates['VND'] = 26405.3; - + foreach($dom->Cube->Cube->Cube as $c) { //echo '
';print_r($c ); $rates[(string)$c['currency']] = (string)$c['rate']; } $rates['RMB'] = $rates['CNY'] ; + + foreach($rates as $cur=>$in_euro) { + + + $rate = (1.0 / $rates['USD']) * $in_euro; + + + + $ov = DB_DataObject::Factory('core_curr_rate'); + $ov->curr = $cur; + $nl = clone($ov); + $ov->orderBy('to_dt DESC'); + $ov->limit(1); + + + $nl->from_dt = DB_DataObject::sqlValue("NOW()"); + $nl->to_dt = DB_DataObject::sqlValue("NOW() + INTERVAL 7 DAY"); + if ($ov->find(true)) { + if (strtotime($ov->to_dt) > time()) { + continue; + } + $nl->from_dt = $ov->to_dt; + + + if ($ov->rate == $rate) { + // modify the old one to expire + $oo = clone($ov); + $ov->to_dt = $nl->from_dt; + $ov->update($oo); + continue; + } + } else { + // no previous record... + $nl->from_dt = '1970-01-01 00:00:00'; + } + $nl->rate = $rate; + // create a new row. + $nl->insert(); + + + + } + + } + function rate($cur, $when) + { + $when === false ? date('Y-m-d H:i:s') : $when; + $this->loadRates(); // check if we have an rates. + + $r = DB_DataObject::factory('core_curr_rate'); + $r->curr = $cur; + $r->whereAdd("from_dt < '" . date('Y-m-d H:i:s', strtotime($when)) . "'"); + + $r->orderBy('to_dt ASC'); + $r->limit(1); + if ($r->find(true)) { + return $r->rate; + } + return false; + } + + function convert($val, $from, $to, $when = false) + { + + + $fr = $this->rate($from, $when); + $tr = $this->rate($to, $when); + + // crappy error handling.. + if ($fr === false) { + return false; + } + if ($tr === false) { + return false; + } + + return ((1.0 / $fr) * $val) * $tr; + + + + } + + function currentRates() + { + $this->loadRates(); + // DB_DataObject::debugLevel(1); + $c = DB_DAtaObject::factory('core_curr_rate'); + $c->whereAdd('from_dt < NOW() AND to_dt > NOW()'); + $c->find(); + $ret = array(); + while($c->fetch()) { + $ret[$c->curr] = $c->rate; + } + return $ret; + + + + } + + }