From d1c15227b18177ff0d3a33ce8f8ee2c563a5cf4d Mon Sep 17 00:00:00 2001 From: Remi Collet Date: Mon, 7 Jun 2010 02:35:36 +0800 Subject: Introduce CommonTable, TableIterator, TablePearRepo classes (and use it in refresh) --- class/CommonTable.php | 368 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 368 insertions(+) create mode 100644 class/CommonTable.php (limited to 'class/CommonTable.php') diff --git a/class/CommonTable.php b/class/CommonTable.php new file mode 100644 index 0000000..721a224 --- /dev/null +++ b/class/CommonTable.php @@ -0,0 +1,368 @@ +. + * + * @category Main + * @package RPMPHP + * + * @author Remi Collet + * @author Johan Cwiklinski + * @copyright 2010 Remi Collet + * @license http://www.gnu.org/licenses/agpl-3.0-standalone.html AGPL License 3.0 or (at your option) any later version + * @link http://github.com/remicollet/rpmphp/ + * @since The begining of times. +*/ + +abstract class CommonTable { + + protected $db; + protected $table; + + function __construct(PDO $db, $table) { + + $this->db = $db; + $this->table = $table; + + if (!$this->existsTable($table)) { + $this->createTable($table); + } + } + + public function existsTable($table) { + $req = new TableIterator($this->db, "SHOW TABLES LIKE '$table'"); + foreach ($req as $data) { + return true; + } + return false; + } + + protected function exec($sql) { + $res = $this->db->exec($sql); + if ($res===false) { + $err = $this->db->errorInfo(); + throw new Exception($err[2]); + } + } + + protected function add(array $fields) { + $col = array(); + $val = array(); + foreach ($fields as $name => $value) { + $col[] = "`$name`"; + if (is_null($value)) { + $val[] = 'NULL'; + } else if (is_numeric($value)) { + $val[] = $value; + } else { + $val[] = "'$value'"; + } + } + $sql = "INSERT INTO `".$this->table."` (".implode(',',$col).") + VALUE (".implode(',',$val).")"; + $this->exec($sql); + } + abstract protected function createTable(); + + /** + * Instanciate a Simple DBIterator + * + * Examples = + * foreach ($DB->request("select * from glpi_states") as $data) { ... } + * foreach ($DB->request("glpi_states") as $ID => $data) { ... } + * foreach ($DB->request("glpi_states", "ID=1") as $ID => $data) { ... } + * foreach ($DB->request("glpi_states", "", "name") as $ID => $data) { ... } + * foreach ($DB->request("glpi_computers",array("name"=>"SBEI003W","entities_id"=>1),array("serial","otherserial")) { ... } + * + * @param $tableorsql table name, array of names or SQL query + * @param $crit string or array of field/values, ex array("id"=>1), if empty => all rows + * + * Examples = + * array("id"=>NULL) + * array("OR"=>array("id"=>1, "NOT"=>array("state"=>3))); + * array("AND"=>array("id"=>1, array("NOT"=>array("state"=>array(3,4,5),"toto"=>2)))) + * + * param 'FIELDS' name or array of field names + * param 'ORDER' filed name or array of field names + * param 'LIMIT' max of row to retrieve + * param 'START' first row to retrieve + * + * @return DBIterator + **/ + public function request ($crit='') { + return new TableIterator ($this->db, $this->table, $crit); + } + + public function getAllArray($fieldkey, $fieldvalue) { + $crit = array('FIELDS' => array($fieldkey, $fieldvalue), + 'ORDER' => $fieldkey); + $tab = array(); + foreach ($this->request($crit) as $data) { + $tab[$data[$fieldkey]] = $data[$fieldvalue]; + } + return $tab; + } +} + +class TablePearRepo extends CommonTable { + + function __construct($db) { + parent::__construct($db, 'pearrepo'); + } + + protected function createTable() { + + // Table schema + $sql = "CREATE TABLE `pearrepo` ( + `id` int(11) NOT NULL AUTO_INCREMENT, + `alias` varchar(30) NOT NULL, + `url` varchar(255) NOT NULL, + PRIMARY KEY (`id`), + UNIQUE KEY `alias` (`alias`) + ) DEFAULT CHARSET=utf8"; + + $this->exec($sql); + + // Some known repo, other could be add manually + // no reply from "phpdb" => "pear.phpdb.org" + $channels = array( + "pear" => "pear.php.net" + ,"doctrine" => "pear.phpdoctrine.org" + ,"ezc" => "components.ez.no" + ,"pdepend" => "pear.pdepend.org" + ,"phing" => "pear.phing.info" + ,"phpmd" => "pear.phpmd.org" + ,"phpunit" => "pear.phpunit.de" + ,"swift" => "pear.swiftmailer.org" + ,"symphony" => "pear.symfony-project.com" + ); + + foreach ($channels as $alias => $url) { + $this->add(array('alias'=>$alias, 'url'=>$url)); + } + } + + function getAllRepo() { + return $this->getAllArray('alias', 'url'); + } +} + +/* + * Helper for simple query => see $DBmysql->requete + */ +class TableIterator implements Iterator { + + private $con; + private $sql; + private $res = false; + private $row; + private $pos; + + /** + * Constructor + * + * @param $dbconnexion Database Connnexion (must be a CommonDBTM object) + * @param $table table name + * @param $crit string or array of filed/values, ex array("id"=>1), if empty => all rows + * + **/ + function __construct (PDO $dbconnexion, $table, $crit='') { + + $this->conn = $dbconnexion; + if (is_string($table) && strpos($table, " ")) { + $this->sql = $table; + } else { + // check field, orderby, limit, start in criterias + $field=""; + $orderby=""; + $limit=0; + $start=0; + + if (is_array($crit) && count($crit)) { + foreach ($crit as $key => $val) { + if ($key==="FIELDS") { + $field = $val; + unset($crit[$key]); + } else if ($key==="ORDER") { + $orderby = $val; + unset($crit[$key]); + } else if ($key==="LIMIT") { + $limit = $val; + unset($crit[$key]); + } else if ($key==="START") { + $start = $val; + unset($crit[$key]); + } + } + } + + // SELECT field list + if (is_array($field)) { + $this->sql = ""; + foreach ($field as $t => $f) { + if (is_numeric($t)) { + $this->sql .= (empty($this->sql) ? "SELECT " : ",") . $f; + } else if (is_array($f)) { + $this->sql .= (empty($this->sql) ? "SELECT $t." : ",$t.") . implode(",$t.",$f); + } else { + $this->sql .= (empty($this->sql) ? "SELECT " : ",") . "$t.$f"; + } + } + } else if (empty($field)) { + $this->sql = "SELECT *"; + } else { + $this->sql = "SELECT `$field`"; + } + // FROM table list + if (is_array($table)) { + $this->sql .= " FROM `".implode("`, `",$table)."`"; + } else { + $this->sql .= " FROM `$table`"; + } + // WHERE criteria list + if (!empty($crit)) { + print_r($crit); + $this->sql .= " WHERE ".$this->analyseCrit($crit); + } + // ORDER BY + if (is_array($orderby)) { + $this->sql .= " ORDER BY `".implode("`, `",$orderby)."`"; + } else if (!empty($orderby)) { + $this->sql .= " ORDER BY `$orderby`"; + } + if (is_numeric($limit) && $limit>0) { + $this->sql .= " LIMIT $limit"; + if (is_numeric($start) && $start>0) { + $this->sql .= " OFFSET $start"; + } + } + } + //echo "SQL: ".$this->sql."\n"; + $this->res = $this->conn->prepare($this->sql); + if ($this->res===false) { + $err = $this->db->errorInfo(); + throw new Exception($err[2]); + } + + $this->pos = -1; + } + + function __destruct () { + + if ($this->res) { + $this->res->closeCursor(); + } + } + + private function analyseCrit ($crit, $bool="AND") { + + if (!is_array($crit)) { + return $crit; + } + $ret = ""; + foreach ($crit as $name => $value) { + if (!empty($ret)) { + $ret .= " $bool "; + } + if (is_numeric($name)) { + // No Key case => recurse. + $ret .= "(" . $this->analyseCrit($value, $bool) . ")"; + } else if ($name==="OR" || $name==="AND") { + // Binary logical operator + $ret .= "(" . $this->analyseCrit($value, $name) . ")"; + } else if ($name==="NOT") { + // Uninary logicial operator + $ret .= " NOT (" . $this->analyseCrit($value, "AND") . ")"; + } else if ($name==="FKEY") { + // Foreign Key condition + if (is_array($value) && count($value)==2) { + reset($value); + list($t1,$f1)=each($value); + list($t2,$f2)=each($value); + $ret .= (is_numeric($t1) ? "$f1" : "$t1.$f1") . "=" . + (is_numeric($t2) ? "$f2" : "$t2.$f2"); + } else { + trigger_error("BAD FOREIGN KEY", E_USER_ERROR); + } + } else if (is_array($value)) { + // Array of Value + $ret .= "$name IN ('". implode("','",$value)."')"; + } else if (is_null($value)) { + // NULL condition + $ret .= "$name IS NULL"; + } else if (is_numeric($value)) { + // Integer + $ret .= "$name=$value"; + } else { + // String + $ret .= "$name='$value'"; + } + } + return $ret; + } + + public function rewind () { + + if ($this->res && $this->pos>=0) { + $this->res->closeCursor(); + $this->pos = -1; + } + + if ($this->res && $this->pos<0) { + if (!$this->res->execute()) { + $err = $this->res->errorInfo(); + throw new Exception($err[2]); + } + } + return $this->next(); + } + + public function current() { + + return $this->row; + } + + public function key() { + + return (isset($this->row["id"]) ? $this->row["id"] : $this->pos); + } + + public function next() { + + if (!$this->res) { + return false; + } + $this->row = $this->res->fetch(PDO::FETCH_ASSOC); + $this->pos++; + return $this->row; + } + + public function valid() { + + return $this->res && $this->row; + } + + public function numrows() { + + return ($this->res ? $this->res->rowCount() : 0); + } +} +?> -- cgit