X-Git-Url: http://git.roojs.org/?a=blobdiff_plain;f=DataObjects%2FCore_curr_rate.php;h=3d694cb8935e819cb0d752b848d1377bd99735f8;hb=1b4381897c2b4a3217dada2486f873f2396e62a4;hp=b3fcb87782ab06b0295541e980844c518c6b898f;hpb=344f98c7f3119bb43a7ac5cb94c6269faf5c8638;p=Pman.Core diff --git a/DataObjects/Core_curr_rate.php b/DataObjects/Core_curr_rate.php index b3fcb877..3d694cb8 100644 --- a/DataObjects/Core_curr_rate.php +++ b/DataObjects/Core_curr_rate.php @@ -12,9 +12,9 @@ class Pman_Core_DataObjects_Core_curr_rate extends DB_DataObject public $__table = 'core_curr_rate'; // table name public $id; public $curr; - public $rate; - public $from; - public $to; + public $rate; // always to USD... + public $from_dt; + public $to_dt; /* the code above is auto generated do not remove the tag below */ ###END_AUTOCODE @@ -24,4 +24,139 @@ class Pman_Core_DataObjects_Core_curr_rate extends DB_DataObject } + + + + /** + * current rate fetching + * + * - we used to do historical rates... (but sources keep disappearing for that..) + * + * this just get's the current rates from the ecb.. + * + * + */ + function loadRates() + { + + // how often do we need to know this..? + // let's assume we do it once a week.. + $x = DB_DataObject::Factory('core_curr_rate'); + $x->whereAdd('to_date > NOW()'); + if ($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; // taiwan dorlar + $rates['VND'] = 25282.24; // veitnam dong? + + + foreach($dom->Cube->Cube->Cube as $c) { + //echo '
';print_r($c ); + $rates[(string)$c['currency']] = (string)$c['rate']; + } + $rates['RMB'] = $rates['CNY'] ; + + + + // now try loading from latest.. + + // 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); + $rates['EUR'] = 1.0; + + foreach($dom->Cube->Cube->Cube as $c) { + //echo '';print_r($c ); + $rates[(string)$c['currency']] = (string)$c['rate']; + } + $rates['RMB'] = $rates['CNY'] ; + + foreach($rates as $cur=>$euro) { + + + $rate = $this->rates['USD'] * $euro; + + + + + + + + + $ov = DB_DataObject::Factory('core_curr_rate'); + $ov->curr = $cur; + $nl = clone($x); + $ov->orderBy('to_date 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_date) > time()) { + continue; + } + $nl->from_dt = $ov->to_date; + + + if ($ov->rate == $rate) { + // modify the old one to expire + $oo = clone($ov); + $ov->to_date = $nv->to_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) + { + $this->loadRates(); // check if we have an rates. + + $r = DB_DataObject::factory('core_curr_rate'); + $r->curr = $cur; + $r->whereAdd('from_dt < when_dt + + } + + function convert($val, $from, $to, $when = false) + { + + + + if ($r === false) { + return false; + } + if (!isset($this->rates[$from]) || !isset($this->rates[$to]) ) { + return false; + } + //echo '';print_R($this->rates); + $base = (1.0 / $this->rates[$from]) * $val; + + return $this->rates[$to] * $base; + + } + + + }