C:/lib/adodb/drivers/adodb-informix72.inc.php Quellcode

adodb-informix72.inc.php
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1 <?php
2 /*
3 V5.19dev ??-???-2014 (c) 2000-2014 John Lim. All rights reserved.
4  Released under both BSD license and Lesser GPL library license.
5  Whenever there is any discrepancy between the two licenses,
6  the BSD license will take precedence.
7  Set tabs to 4 for best viewing.
8 
9  Latest version is available at http://adodb.sourceforge.net
10 
11  Informix port by Mitchell T. Young (mitch@youngfamily.org)
12 
13  Further mods by "Samuel CARRIERE" <samuel_carriere@hotmail.com>
14 
15 */
16 
17 // security - hide paths
18 if (!defined('ADODB_DIR')) die();
19 
20 if (!defined('IFX_SCROLL')) define('IFX_SCROLL',1);
21 
22 class ADODB_informix72 extends ADOConnection {
23  var $databaseType = "informix72";
24  var $dataProvider = "informix";
25  var $replaceQuote = "''"; // string to use to replace quotes
26  var $fmtDate = "'Y-m-d'";
27  var $fmtTimeStamp = "'Y-m-d H:i:s'";
28  var $hasInsertID = true;
29  var $hasAffectedRows = true;
30  var $substr = 'substr';
31  var $metaTablesSQL="select tabname,tabtype from systables where tabtype in ('T','V') and owner!='informix'"; //Don't get informix tables and pseudo-tables
32 
33 
35  "select c.colname, c.coltype, c.collength, d.default,c.colno
36  from syscolumns c, systables t,outer sysdefaults d
37  where c.tabid=t.tabid and d.tabid=t.tabid and d.colno=c.colno
38  and tabname='%s' order by c.colno";
39 
41  "select part1,part2,part3,part4,part5,part6,part7,part8 from
42  systables t,sysconstraints s,sysindexes i where t.tabname='%s'
43  and s.tabid=t.tabid and s.constrtype='P'
44  and i.idxname=s.idxname";
45 
46  var $concat_operator = '||';
47 
48  var $lastQuery = false;
49  var $has_insertid = true;
50 
51  var $_autocommit = true;
52  var $_bindInputArray = true; // set to true if ADOConnection.Execute() permits binding of array parameters.
53  var $sysDate = 'TODAY';
54  var $sysTimeStamp = 'CURRENT';
55  var $cursorType = IFX_SCROLL; // IFX_SCROLL or IFX_HOLD or 0
56 
57  function ADODB_informix72()
58  {
59  // alternatively, use older method:
60  //putenv("DBDATE=Y4MD-");
61 
62  // force ISO date format
63  putenv('GL_DATE=%Y-%m-%d');
64 
65  if (function_exists('ifx_byteasvarchar')) {
66  ifx_byteasvarchar(1); // Mode "0" will return a blob id, and mode "1" will return a varchar with text content.
67  ifx_textasvarchar(1); // Mode "0" will return a blob id, and mode "1" will return a varchar with text content.
68  ifx_blobinfile_mode(0); // Mode "0" means save Byte-Blobs in memory, and mode "1" means save Byte-Blobs in a file.
69  }
70  }
71 
72  function ServerInfo()
73  {
74  if (isset($this->version)) return $this->version;
75 
76  $arr['description'] = $this->GetOne("select DBINFO('version','full') from systables where tabid = 1");
77  $arr['version'] = $this->GetOne("select DBINFO('version','major') || DBINFO('version','minor') from systables where tabid = 1");
78  $this->version = $arr;
79  return $arr;
80  }
81 
82 
83 
84  function _insertid()
85  {
86  $sqlca =ifx_getsqlca($this->lastQuery);
87  return @$sqlca["sqlerrd1"];
88  }
89 
90  function _affectedrows()
91  {
92  if ($this->lastQuery) {
93  return @ifx_affected_rows ($this->lastQuery);
94  }
95  return 0;
96  }
97 
98  function BeginTrans()
99  {
100  if ($this->transOff) return true;
101  $this->transCnt += 1;
102  $this->Execute('BEGIN');
103  $this->_autocommit = false;
104  return true;
105  }
106 
107  function CommitTrans($ok=true)
108  {
109  if (!$ok) return $this->RollbackTrans();
110  if ($this->transOff) return true;
111  if ($this->transCnt) $this->transCnt -= 1;
112  $this->Execute('COMMIT');
113  $this->_autocommit = true;
114  return true;
115  }
116 
117  function RollbackTrans()
118  {
119  if ($this->transOff) return true;
120  if ($this->transCnt) $this->transCnt -= 1;
121  $this->Execute('ROLLBACK');
122  $this->_autocommit = true;
123  return true;
124  }
125 
126  function RowLock($tables,$where,$col='1 as adodbignore')
127  {
128  if ($this->_autocommit) $this->BeginTrans();
129  return $this->GetOne("select $col from $tables where $where for update");
130  }
131 
132  /* Returns: the last error message from previous database operation
133  Note: This function is NOT available for Microsoft SQL Server. */
134 
135  function ErrorMsg()
136  {
137  if (!empty($this->_logsql)) return $this->_errorMsg;
138  $this->_errorMsg = ifx_errormsg();
139  return $this->_errorMsg;
140  }
141 
142  function ErrorNo()
143  {
144  preg_match("/.*SQLCODE=([^\]]*)/",ifx_error(),$parse);
145  if (is_array($parse) && isset($parse[1])) return (int)$parse[1];
146  return 0;
147  }
148 
149 
150  function MetaProcedures($NamePattern = false, $catalog = null, $schemaPattern = null)
151  {
152  // save old fetch mode
153  global $ADODB_FETCH_MODE;
154 
155  $false = false;
156  $save = $ADODB_FETCH_MODE;
157  $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
158  if ($this->fetchMode !== FALSE) {
159  $savem = $this->SetFetchMode(FALSE);
160 
161  }
162  $procedures = array ();
163 
164  // get index details
165 
166  $likepattern = '';
167  if ($NamePattern) {
168  $likepattern = " WHERE procname LIKE '".$NamePattern."'";
169  }
170 
171  $rs = $this->Execute('SELECT procname, isproc FROM sysprocedures'.$likepattern);
172 
173  if (is_object($rs)) {
174  // parse index data into array
175 
176  while ($row = $rs->FetchRow()) {
177  $procedures[$row[0]] = array(
178  'type' => ($row[1] == 'f' ? 'FUNCTION' : 'PROCEDURE'),
179  'catalog' => '',
180  'schema' => '',
181  'remarks' => ''
182  );
183  }
184  }
185 
186  // restore fetchmode
187  if (isset($savem)) {
188  $this->SetFetchMode($savem);
189  }
190  $ADODB_FETCH_MODE = $save;
191 
192  return $procedures;
193  }
194 
195  function MetaColumns($table, $normalize=true)
196  {
197  global $ADODB_FETCH_MODE;
198 
199  $false = false;
200  if (!empty($this->metaColumnsSQL)) {
201  $save = $ADODB_FETCH_MODE;
202  $ADODB_FETCH_MODE = ADODB_FETCH_NUM;
203  if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
204  $rs = $this->Execute(sprintf($this->metaColumnsSQL,$table));
205  if (isset($savem)) $this->SetFetchMode($savem);
206  $ADODB_FETCH_MODE = $save;
207  if ($rs === false) return $false;
208  $rspkey = $this->Execute(sprintf($this->metaPrimaryKeySQL,$table)); //Added to get primary key colno items
209 
210  $retarr = array();
211  while (!$rs->EOF) { //print_r($rs->fields);
212  $fld = new ADOFieldObject();
213  $fld->name = $rs->fields[0];
214 /* //!eos.
215  $rs->fields[1] is not the correct adodb type
216  $rs->fields[2] is not correct max_length, because can include not-null bit
217 
218  $fld->type = $rs->fields[1];
219  $fld->primary_key=$rspkey->fields && array_search($rs->fields[4],$rspkey->fields); //Added to set primary key flag
220  $fld->max_length = $rs->fields[2];*/
221  $pr=ifx_props($rs->fields[1],$rs->fields[2]);
222  $fld->type = $pr[0] ;
223  $fld->primary_key=$rspkey->fields && array_search($rs->fields[4],$rspkey->fields);
224  $fld->max_length = $pr[1];
225  $fld->precision = $pr[2] ;
226  $fld->not_null = $pr[3]=="N";
227 
228  if (trim($rs->fields[3]) != "AAAAAA 0") {
229  $fld->has_default = 1;
230  $fld->default_value = $rs->fields[3];
231  } else {
232  $fld->has_default = 0;
233  }
234 
235  $retarr[strtolower($fld->name)] = $fld;
236  $rs->MoveNext();
237  }
238 
239  $rs->Close();
240  $rspkey->Close();
241  return $retarr;
242  }
243 
244  return $false;
245  }
246 
247  function xMetaColumns($table)
248  {
249  return ADOConnection::MetaColumns($table,false);
250  }
251 
252  function MetaForeignKeys($table, $owner=false, $upper=false)
253  {
254  $sql = "
255  select tr.tabname,updrule,delrule,
256  i.part1 o1,i2.part1 d1,i.part2 o2,i2.part2 d2,i.part3 o3,i2.part3 d3,i.part4 o4,i2.part4 d4,
257  i.part5 o5,i2.part5 d5,i.part6 o6,i2.part6 d6,i.part7 o7,i2.part7 d7,i.part8 o8,i2.part8 d8
258  from systables t,sysconstraints s,sysindexes i,
259  sysreferences r,systables tr,sysconstraints s2,sysindexes i2
260  where t.tabname='$table'
261  and s.tabid=t.tabid and s.constrtype='R' and r.constrid=s.constrid
262  and i.idxname=s.idxname and tr.tabid=r.ptabid
263  and s2.constrid=r.primary and i2.idxname=s2.idxname";
264 
265  $rs = $this->Execute($sql);
266  if (!$rs || $rs->EOF) return false;
267  $arr = $rs->GetArray();
268  $a = array();
269  foreach($arr as $v) {
270  $coldest=$this->metaColumnNames($v["tabname"]);
271  $colorig=$this->metaColumnNames($table);
272  $colnames=array();
273  for($i=1;$i<=8 && $v["o$i"] ;$i++) {
274  $colnames[]=$coldest[$v["d$i"]-1]."=".$colorig[$v["o$i"]-1];
275  }
276  if($upper)
277  $a[strtoupper($v["tabname"])] = $colnames;
278  else
279  $a[$v["tabname"]] = $colnames;
280  }
281  return $a;
282  }
283 
284  function UpdateBlob($table, $column, $val, $where, $blobtype = 'BLOB')
285  {
286  $type = ($blobtype == 'TEXT') ? 1 : 0;
287  $blobid = ifx_create_blob($type,0,$val);
288  return $this->Execute("UPDATE $table SET $column=(?) WHERE $where",array($blobid));
289  }
290 
291  function BlobDecode($blobid)
292  {
293  return function_exists('ifx_byteasvarchar') ? $blobid : @ifx_get_blob($blobid);
294  }
295 
296  // returns true or false
297  function _connect($argHostname, $argUsername, $argPassword, $argDatabasename)
298  {
299  if (!function_exists('ifx_connect')) return null;
300 
301  $dbs = $argDatabasename . "@" . $argHostname;
302  if ($argHostname) putenv("INFORMIXSERVER=$argHostname");
303  putenv("INFORMIXSERVER=".trim($argHostname));
304  $this->_connectionID = ifx_connect($dbs,$argUsername,$argPassword);
305  if ($this->_connectionID === false) return false;
306  #if ($argDatabasename) return $this->SelectDB($argDatabasename);
307  return true;
308  }
309 
310  // returns true or false
311  function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
312  {
313  if (!function_exists('ifx_connect')) return null;
314 
315  $dbs = $argDatabasename . "@" . $argHostname;
316  putenv("INFORMIXSERVER=".trim($argHostname));
317  $this->_connectionID = ifx_pconnect($dbs,$argUsername,$argPassword);
318  if ($this->_connectionID === false) return false;
319  #if ($argDatabasename) return $this->SelectDB($argDatabasename);
320  return true;
321  }
322 /*
323  // ifx_do does not accept bind parameters - weird ???
324  function Prepare($sql)
325  {
326  $stmt = ifx_prepare($sql);
327  if (!$stmt) return $sql;
328  else return array($sql,$stmt);
329  }
330 */
331  // returns query ID if successful, otherwise false
332  function _query($sql,$inputarr=false)
333  {
334  global $ADODB_COUNTRECS;
335 
336  // String parameters have to be converted using ifx_create_char
337  if ($inputarr) {
338  foreach($inputarr as $v) {
339  if (gettype($v) == 'string') {
340  $tab[] = ifx_create_char($v);
341  }
342  else {
343  $tab[] = $v;
344  }
345  }
346  }
347 
348  // In case of select statement, we use a scroll cursor in order
349  // to be able to call "move", or "movefirst" statements
350  if (!$ADODB_COUNTRECS && preg_match("/^\s*select/is", $sql)) {
351  if ($inputarr) {
352  $this->lastQuery = ifx_query($sql,$this->_connectionID, $this->cursorType, $tab);
353  }
354  else {
355  $this->lastQuery = ifx_query($sql,$this->_connectionID, $this->cursorType);
356  }
357  }
358  else {
359  if ($inputarr) {
360  $this->lastQuery = ifx_query($sql,$this->_connectionID, $tab);
361  }
362  else {
363  $this->lastQuery = ifx_query($sql,$this->_connectionID);
364  }
365  }
366 
367  // Following line have been commented because autocommit mode is
368  // not supported by informix SE 7.2
369 
370  //if ($this->_autocommit) ifx_query('COMMIT',$this->_connectionID);
371 
372  return $this->lastQuery;
373  }
374 
375  // returns true or false
376  function _close()
377  {
378  $this->lastQuery = false;
379  return ifx_close($this->_connectionID);
380  }
381 }
382 
383 
384 /*--------------------------------------------------------------------------------------
385  Class Name: Recordset
386 --------------------------------------------------------------------------------------*/
387 
388 class ADORecordset_informix72 extends ADORecordSet {
389 
390  var $databaseType = "informix72";
391  var $canSeek = true;
392  var $_fieldprops = false;
393 
394  function ADORecordset_informix72($id,$mode=false)
395  {
396  if ($mode === false) {
397  global $ADODB_FETCH_MODE;
398  $mode = $ADODB_FETCH_MODE;
399  }
400  $this->fetchMode = $mode;
401  return $this->ADORecordSet($id);
402  }
403 
404 
405 
406  /* Returns: an object containing field information.
407  Get column information in the Recordset object. fetchField() can be used in order to obtain information about
408  fields in a certain query result. If the field offset isn't specified, the next field that wasn't yet retrieved by
409  fetchField() is retrieved. */
410  function FetchField($fieldOffset = -1)
411  {
412  if (empty($this->_fieldprops)) {
413  $fp = ifx_fieldproperties($this->_queryID);
414  foreach($fp as $k => $v) {
415  $o = new ADOFieldObject;
416  $o->name = $k;
417  $arr = explode(';',$v); //"SQLTYPE;length;precision;scale;ISNULLABLE"
418  $o->type = $arr[0];
419  $o->max_length = $arr[1];
420  $this->_fieldprops[] = $o;
421  $o->not_null = $arr[4]=="N";
422  }
423  }
424  $ret = $this->_fieldprops[$fieldOffset];
425  return $ret;
426  }
427 
428  function _initrs()
429  {
430  $this->_numOfRows = -1; // ifx_affected_rows not reliable, only returns estimate -- ($ADODB_COUNTRECS)? ifx_affected_rows($this->_queryID):-1;
431  $this->_numOfFields = ifx_num_fields($this->_queryID);
432  }
433 
434  function _seek($row)
435  {
436  return @ifx_fetch_row($this->_queryID, (int) $row);
437  }
438 
439  function MoveLast()
440  {
441  $this->fields = @ifx_fetch_row($this->_queryID, "LAST");
442  if ($this->fields) $this->EOF = false;
443  $this->_currentRow = -1;
444 
445  if ($this->fetchMode == ADODB_FETCH_NUM) {
446  foreach($this->fields as $v) {
447  $arr[] = $v;
448  }
449  $this->fields = $arr;
450  }
451 
452  return true;
453  }
454 
455  function MoveFirst()
456  {
457  $this->fields = @ifx_fetch_row($this->_queryID, "FIRST");
458  if ($this->fields) $this->EOF = false;
459  $this->_currentRow = 0;
460 
461  if ($this->fetchMode == ADODB_FETCH_NUM) {
462  foreach($this->fields as $v) {
463  $arr[] = $v;
464  }
465  $this->fields = $arr;
466  }
467 
468  return true;
469  }
470 
471  function _fetch($ignore_fields=false)
472  {
473 
474  $this->fields = @ifx_fetch_row($this->_queryID);
475 
476  if (!is_array($this->fields)) return false;
477 
478  if ($this->fetchMode == ADODB_FETCH_NUM) {
479  foreach($this->fields as $v) {
480  $arr[] = $v;
481  }
482  $this->fields = $arr;
483  }
484  return true;
485  }
486 
487  /* close() only needs to be called if you are worried about using too much memory while your script
488  is running. All associated result memory for the specified result identifier will automatically be freed. */
489  function _close()
490  {
491  return ifx_free_result($this->_queryID);
492  }
493 
494 }
499 function ifx_props($coltype,$collength){
500  $itype=fmod($coltype+1,256);
501  $nullable=floor(($coltype+1) /256) ?"N":"Y";
502  $mtype=substr(" CIIFFNNDN TBXCC ",$itype,1);
503  switch ($itype){
504  case 2:
505  $length=4;
506  case 6:
507  case 9:
508  case 14:
509  $length=floor($collength/256);
510  $precision=fmod($collength,256);
511  break;
512  default:
513  $precision=0;
514  $length=$collength;
515  }
516  return array($mtype,$length,$precision,$nullable);
517 }
518 
519 
520 ?>




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