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   1  <?php
   2  /*
   3  @version   v5.20.3  01-Jan-2016
   4  @copyright (c) 2000-2013 John Lim. All rights reserved.
   5  @copyright (c) 2014      Damien Regad, Mark Newnham and the ADOdb community
   6    Released under both BSD license and Lesser GPL library license.
   7    Whenever there is any discrepancy between the two licenses,
   8    the BSD license will take precedence.
   9    Set tabs to 4 for best viewing.
  10  
  11    Latest version is available at http://adodb.sourceforge.net
  12  
  13    Informix port by Mitchell T. Young (mitch@youngfamily.org)
  14  
  15    Further mods by "Samuel CARRIERE" <samuel_carriere@hotmail.com>
  16  
  17  */
  18  
  19  // security - hide paths
  20  if (!defined('ADODB_DIR')) die();
  21  
  22  if (!defined('IFX_SCROLL')) define('IFX_SCROLL',1);
  23  
  24  class ADODB_informix72 extends ADOConnection {
  25      var $databaseType = "informix72";
  26      var $dataProvider = "informix";
  27      var $replaceQuote = "''"; // string to use to replace quotes
  28      var $fmtDate = "'Y-m-d'";
  29      var $fmtTimeStamp = "'Y-m-d H:i:s'";
  30      var $hasInsertID = true;
  31      var $hasAffectedRows = true;
  32      var $substr = 'substr';
  33      var $metaTablesSQL="select tabname,tabtype from systables where tabtype in ('T','V') and owner!='informix'"; //Don't get informix tables and pseudo-tables
  34  
  35  
  36      var $metaColumnsSQL =
  37          "select c.colname, c.coltype, c.collength, d.default,c.colno
  38          from syscolumns c, systables t,outer sysdefaults d
  39          where c.tabid=t.tabid and d.tabid=t.tabid and d.colno=c.colno
  40          and tabname='%s' order by c.colno";
  41  
  42      var $metaPrimaryKeySQL =
  43          "select part1,part2,part3,part4,part5,part6,part7,part8 from
  44          systables t,sysconstraints s,sysindexes i where t.tabname='%s'
  45          and s.tabid=t.tabid and s.constrtype='P'
  46          and i.idxname=s.idxname";
  47  
  48      var $concat_operator = '||';
  49  
  50      var $lastQuery = false;
  51      var $has_insertid = true;
  52  
  53      var $_autocommit = true;
  54      var $_bindInputArray = true;  // set to true if ADOConnection.Execute() permits binding of array parameters.
  55      var $sysDate = 'TODAY';
  56      var $sysTimeStamp = 'CURRENT';
  57      var $cursorType = IFX_SCROLL; // IFX_SCROLL or IFX_HOLD or 0
  58  
  59  	function __construct()
  60      {
  61          // alternatively, use older method:
  62          //putenv("DBDATE=Y4MD-");
  63  
  64          // force ISO date format
  65          putenv('GL_DATE=%Y-%m-%d');
  66  
  67          if (function_exists('ifx_byteasvarchar')) {
  68              ifx_byteasvarchar(1); // Mode "0" will return a blob id, and mode "1" will return a varchar with text content.
  69              ifx_textasvarchar(1); // Mode "0" will return a blob id, and mode "1" will return a varchar with text content.
  70              ifx_blobinfile_mode(0); // Mode "0" means save Byte-Blobs in memory, and mode "1" means save Byte-Blobs in a file.
  71          }
  72      }
  73  
  74  	function ServerInfo()
  75      {
  76          if (isset($this->version)) return $this->version;
  77  
  78          $arr['description'] = $this->GetOne("select DBINFO('version','full') from systables where tabid = 1");
  79          $arr['version'] = $this->GetOne("select DBINFO('version','major') || DBINFO('version','minor') from systables where tabid = 1");
  80          $this->version = $arr;
  81          return $arr;
  82      }
  83  
  84  
  85  
  86  	function _insertid()
  87      {
  88          $sqlca =ifx_getsqlca($this->lastQuery);
  89          return @$sqlca["sqlerrd1"];
  90      }
  91  
  92  	function _affectedrows()
  93      {
  94          if ($this->lastQuery) {
  95             return @ifx_affected_rows ($this->lastQuery);
  96          }
  97          return 0;
  98      }
  99  
 100  	function BeginTrans()
 101      {
 102          if ($this->transOff) return true;
 103          $this->transCnt += 1;
 104          $this->Execute('BEGIN');
 105          $this->_autocommit = false;
 106          return true;
 107      }
 108  
 109  	function CommitTrans($ok=true)
 110      {
 111          if (!$ok) return $this->RollbackTrans();
 112          if ($this->transOff) return true;
 113          if ($this->transCnt) $this->transCnt -= 1;
 114          $this->Execute('COMMIT');
 115          $this->_autocommit = true;
 116          return true;
 117      }
 118  
 119  	function RollbackTrans()
 120      {
 121          if ($this->transOff) return true;
 122          if ($this->transCnt) $this->transCnt -= 1;
 123          $this->Execute('ROLLBACK');
 124          $this->_autocommit = true;
 125          return true;
 126      }
 127  
 128  	function RowLock($tables,$where,$col='1 as adodbignore')
 129      {
 130          if ($this->_autocommit) $this->BeginTrans();
 131          return $this->GetOne("select $col from $tables where $where for update");
 132      }
 133  
 134      /*    Returns: the last error message from previous database operation
 135          Note: This function is NOT available for Microsoft SQL Server.    */
 136  
 137  	function ErrorMsg()
 138      {
 139          if (!empty($this->_logsql)) return $this->_errorMsg;
 140          $this->_errorMsg = ifx_errormsg();
 141          return $this->_errorMsg;
 142      }
 143  
 144  	function ErrorNo()
 145      {
 146          preg_match("/.*SQLCODE=([^\]]*)/",ifx_error(),$parse);
 147          if (is_array($parse) && isset($parse[1])) return (int)$parse[1];
 148          return 0;
 149      }
 150  
 151  
 152  	function MetaProcedures($NamePattern = false, $catalog  = null, $schemaPattern  = null)
 153      {
 154          // save old fetch mode
 155          global $ADODB_FETCH_MODE;
 156  
 157          $false = false;
 158          $save = $ADODB_FETCH_MODE;
 159          $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
 160          if ($this->fetchMode !== FALSE) {
 161                 $savem = $this->SetFetchMode(FALSE);
 162  
 163          }
 164          $procedures = array ();
 165  
 166          // get index details
 167  
 168          $likepattern = '';
 169          if ($NamePattern) {
 170             $likepattern = " WHERE procname LIKE '".$NamePattern."'";
 171          }
 172  
 173          $rs = $this->Execute('SELECT procname, isproc FROM sysprocedures'.$likepattern);
 174  
 175          if (is_object($rs)) {
 176              // parse index data into array
 177  
 178              while ($row = $rs->FetchRow()) {
 179                  $procedures[$row[0]] = array(
 180                          'type' => ($row[1] == 'f' ? 'FUNCTION' : 'PROCEDURE'),
 181                          'catalog' => '',
 182                          'schema' => '',
 183                          'remarks' => ''
 184                      );
 185              }
 186          }
 187  
 188          // restore fetchmode
 189          if (isset($savem)) {
 190                  $this->SetFetchMode($savem);
 191          }
 192          $ADODB_FETCH_MODE = $save;
 193  
 194          return $procedures;
 195      }
 196  
 197      function MetaColumns($table, $normalize=true)
 198      {
 199      global $ADODB_FETCH_MODE;
 200  
 201          $false = false;
 202          if (!empty($this->metaColumnsSQL)) {
 203              $save = $ADODB_FETCH_MODE;
 204              $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
 205              if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
 206                    $rs = $this->Execute(sprintf($this->metaColumnsSQL,$table));
 207              if (isset($savem)) $this->SetFetchMode($savem);
 208              $ADODB_FETCH_MODE = $save;
 209              if ($rs === false) return $false;
 210              $rspkey = $this->Execute(sprintf($this->metaPrimaryKeySQL,$table)); //Added to get primary key colno items
 211  
 212              $retarr = array();
 213              while (!$rs->EOF) { //print_r($rs->fields);
 214                  $fld = new ADOFieldObject();
 215                  $fld->name = $rs->fields[0];
 216  /*  //!eos.
 217                          $rs->fields[1] is not the correct adodb type
 218                          $rs->fields[2] is not correct max_length, because can include not-null bit
 219  
 220                  $fld->type = $rs->fields[1];
 221                  $fld->primary_key=$rspkey->fields && array_search($rs->fields[4],$rspkey->fields); //Added to set primary key flag
 222                  $fld->max_length = $rs->fields[2];*/
 223                  $pr=ifx_props($rs->fields[1],$rs->fields[2]); //!eos
 224                  $fld->type = $pr[0] ;//!eos
 225                  $fld->primary_key=$rspkey->fields && array_search($rs->fields[4],$rspkey->fields);
 226                  $fld->max_length = $pr[1]; //!eos
 227                  $fld->precision = $pr[2] ;//!eos
 228                  $fld->not_null = $pr[3]=="N"; //!eos
 229  
 230                  if (trim($rs->fields[3]) != "AAAAAA 0") {
 231                                  $fld->has_default = 1;
 232                                  $fld->default_value = $rs->fields[3];
 233                  } else {
 234                      $fld->has_default = 0;
 235                  }
 236  
 237                  $retarr[strtolower($fld->name)] = $fld;
 238                  $rs->MoveNext();
 239              }
 240  
 241              $rs->Close();
 242              $rspkey->Close(); //!eos
 243              return $retarr;
 244          }
 245  
 246          return $false;
 247      }
 248  
 249     function xMetaColumns($table)
 250     {
 251          return ADOConnection::MetaColumns($table,false);
 252     }
 253  
 254  	 function MetaForeignKeys($table, $owner=false, $upper=false) //!Eos
 255      {
 256          $sql = "
 257              select tr.tabname,updrule,delrule,
 258              i.part1 o1,i2.part1 d1,i.part2 o2,i2.part2 d2,i.part3 o3,i2.part3 d3,i.part4 o4,i2.part4 d4,
 259              i.part5 o5,i2.part5 d5,i.part6 o6,i2.part6 d6,i.part7 o7,i2.part7 d7,i.part8 o8,i2.part8 d8
 260              from systables t,sysconstraints s,sysindexes i,
 261              sysreferences r,systables tr,sysconstraints s2,sysindexes i2
 262              where t.tabname='$table'
 263              and s.tabid=t.tabid and s.constrtype='R' and r.constrid=s.constrid
 264              and i.idxname=s.idxname and tr.tabid=r.ptabid
 265              and s2.constrid=r.primary and i2.idxname=s2.idxname";
 266  
 267          $rs = $this->Execute($sql);
 268          if (!$rs || $rs->EOF)  return false;
 269          $arr = $rs->GetArray();
 270          $a = array();
 271          foreach($arr as $v) {
 272              $coldest=$this->metaColumnNames($v["tabname"]);
 273              $colorig=$this->metaColumnNames($table);
 274              $colnames=array();
 275              for($i=1;$i<=8 && $v["o$i"] ;$i++) {
 276                  $colnames[]=$coldest[$v["d$i"]-1]."=".$colorig[$v["o$i"]-1];
 277              }
 278              if($upper)
 279                  $a[strtoupper($v["tabname"])] =  $colnames;
 280              else
 281                  $a[$v["tabname"]] =  $colnames;
 282          }
 283          return $a;
 284       }
 285  
 286     function UpdateBlob($table, $column, $val, $where, $blobtype = 'BLOB')
 287     {
 288             $type = ($blobtype == 'TEXT') ? 1 : 0;
 289          $blobid = ifx_create_blob($type,0,$val);
 290          return $this->Execute("UPDATE $table SET $column=(?) WHERE $where",array($blobid));
 291     }
 292  
 293     function BlobDecode($blobid)
 294     {
 295             return function_exists('ifx_byteasvarchar') ? $blobid : @ifx_get_blob($blobid);
 296     }
 297  
 298      // returns true or false
 299     function _connect($argHostname, $argUsername, $argPassword, $argDatabasename)
 300      {
 301          if (!function_exists('ifx_connect')) return null;
 302  
 303          $dbs = $argDatabasename . "@" . $argHostname;
 304          if ($argHostname) putenv("INFORMIXSERVER=$argHostname");
 305          putenv("INFORMIXSERVER=".trim($argHostname));
 306          $this->_connectionID = ifx_connect($dbs,$argUsername,$argPassword);
 307          if ($this->_connectionID === false) return false;
 308          #if ($argDatabasename) return $this->SelectDB($argDatabasename);
 309          return true;
 310      }
 311  
 312      // returns true or false
 313     function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
 314      {
 315          if (!function_exists('ifx_connect')) return null;
 316  
 317          $dbs = $argDatabasename . "@" . $argHostname;
 318          putenv("INFORMIXSERVER=".trim($argHostname));
 319          $this->_connectionID = ifx_pconnect($dbs,$argUsername,$argPassword);
 320          if ($this->_connectionID === false) return false;
 321          #if ($argDatabasename) return $this->SelectDB($argDatabasename);
 322          return true;
 323      }
 324  /*
 325      // ifx_do does not accept bind parameters - weird ???
 326      function Prepare($sql)
 327      {
 328          $stmt = ifx_prepare($sql);
 329          if (!$stmt) return $sql;
 330          else return array($sql,$stmt);
 331      }
 332  */
 333      // returns query ID if successful, otherwise false
 334  	function _query($sql,$inputarr=false)
 335      {
 336      global $ADODB_COUNTRECS;
 337  
 338        // String parameters have to be converted using ifx_create_char
 339        if ($inputarr) {
 340           foreach($inputarr as $v) {
 341              if (gettype($v) == 'string') {
 342                 $tab[] = ifx_create_char($v);
 343              }
 344              else {
 345                 $tab[] = $v;
 346              }
 347           }
 348        }
 349  
 350        // In case of select statement, we use a scroll cursor in order
 351        // to be able to call "move", or "movefirst" statements
 352        if (!$ADODB_COUNTRECS && preg_match("/^\s*select/is", $sql)) {
 353           if ($inputarr) {
 354              $this->lastQuery = ifx_query($sql,$this->_connectionID, $this->cursorType, $tab);
 355           }
 356           else {
 357              $this->lastQuery = ifx_query($sql,$this->_connectionID, $this->cursorType);
 358           }
 359        }
 360        else {
 361           if ($inputarr) {
 362              $this->lastQuery = ifx_query($sql,$this->_connectionID, $tab);
 363           }
 364           else {
 365              $this->lastQuery = ifx_query($sql,$this->_connectionID);
 366           }
 367        }
 368  
 369        // Following line have been commented because autocommit mode is
 370        // not supported by informix SE 7.2
 371  
 372        //if ($this->_autocommit) ifx_query('COMMIT',$this->_connectionID);
 373  
 374          return $this->lastQuery;
 375      }
 376  
 377      // returns true or false
 378  	function _close()
 379      {
 380          $this->lastQuery = false;
 381          if($this->_connectionID) {
 382              return ifx_close($this->_connectionID);
 383          }
 384          return true;
 385      }
 386  }
 387  
 388  
 389  /*--------------------------------------------------------------------------------------
 390       Class Name: Recordset
 391  --------------------------------------------------------------------------------------*/
 392  
 393  class ADORecordset_informix72 extends ADORecordSet {
 394  
 395      var $databaseType = "informix72";
 396      var $canSeek = true;
 397      var $_fieldprops = false;
 398  
 399  	function __construct($id,$mode=false)
 400      {
 401          if ($mode === false) {
 402              global $ADODB_FETCH_MODE;
 403              $mode = $ADODB_FETCH_MODE;
 404          }
 405          $this->fetchMode = $mode;
 406          return parent::__construct($id);
 407      }
 408  
 409  
 410  
 411      /*    Returns: an object containing field information.
 412          Get column information in the Recordset object. fetchField() can be used in order to obtain information about
 413          fields in a certain query result. If the field offset isn't specified, the next field that wasn't yet retrieved by
 414          fetchField() is retrieved.    */
 415  	function FetchField($fieldOffset = -1)
 416      {
 417          if (empty($this->_fieldprops)) {
 418              $fp = ifx_fieldproperties($this->_queryID);
 419              foreach($fp as $k => $v) {
 420                  $o = new ADOFieldObject;
 421                  $o->name = $k;
 422                  $arr = explode(';',$v); //"SQLTYPE;length;precision;scale;ISNULLABLE"
 423                  $o->type = $arr[0];
 424                  $o->max_length = $arr[1];
 425                  $this->_fieldprops[] = $o;
 426                  $o->not_null = $arr[4]=="N";
 427              }
 428          }
 429          $ret = $this->_fieldprops[$fieldOffset];
 430          return $ret;
 431      }
 432  
 433  	function _initrs()
 434      {
 435          $this->_numOfRows = -1; // ifx_affected_rows not reliable, only returns estimate -- ($ADODB_COUNTRECS)? ifx_affected_rows($this->_queryID):-1;
 436          $this->_numOfFields = ifx_num_fields($this->_queryID);
 437      }
 438  
 439  	function _seek($row)
 440      {
 441          return @ifx_fetch_row($this->_queryID, (int) $row);
 442      }
 443  
 444     function MoveLast()
 445     {
 446        $this->fields = @ifx_fetch_row($this->_queryID, "LAST");
 447        if ($this->fields) $this->EOF = false;
 448        $this->_currentRow = -1;
 449  
 450        if ($this->fetchMode == ADODB_FETCH_NUM) {
 451           foreach($this->fields as $v) {
 452              $arr[] = $v;
 453           }
 454           $this->fields = $arr;
 455        }
 456  
 457        return true;
 458     }
 459  
 460     function MoveFirst()
 461      {
 462        $this->fields = @ifx_fetch_row($this->_queryID, "FIRST");
 463        if ($this->fields) $this->EOF = false;
 464        $this->_currentRow = 0;
 465  
 466        if ($this->fetchMode == ADODB_FETCH_NUM) {
 467           foreach($this->fields as $v) {
 468              $arr[] = $v;
 469           }
 470           $this->fields = $arr;
 471        }
 472  
 473        return true;
 474     }
 475  
 476     function _fetch($ignore_fields=false)
 477     {
 478  
 479          $this->fields = @ifx_fetch_row($this->_queryID);
 480  
 481          if (!is_array($this->fields)) return false;
 482  
 483          if ($this->fetchMode == ADODB_FETCH_NUM) {
 484              foreach($this->fields as $v) {
 485                  $arr[] = $v;
 486              }
 487              $this->fields = $arr;
 488          }
 489          return true;
 490      }
 491  
 492      /*    close() only needs to be called if you are worried about using too much memory while your script
 493          is running. All associated result memory for the specified result identifier will automatically be freed.    */
 494  	function _close()
 495      {
 496          if($this->_queryID) {
 497              return ifx_free_result($this->_queryID);
 498          }
 499          return true;
 500      }
 501  
 502  }
 503  /** !Eos
 504  * Auxiliar function to Parse coltype,collength. Used by Metacolumns
 505  * return: array ($mtype,$length,$precision,$nullable) (similar to ifx_fieldpropierties)
 506  */
 507  function ifx_props($coltype,$collength){
 508      $itype=fmod($coltype+1,256);
 509      $nullable=floor(($coltype+1) /256) ?"N":"Y";
 510      $mtype=substr(" CIIFFNNDN TBXCC     ",$itype,1);
 511      switch ($itype){
 512          case 2:
 513              $length=4;
 514          case 6:
 515          case 9:
 516          case 14:
 517              $length=floor($collength/256);
 518              $precision=fmod($collength,256);
 519              break;
 520          default:
 521              $precision=0;
 522              $length=$collength;
 523      }
 524      return array($mtype,$length,$precision,$nullable);
 525  }