407962d0504faf0512c969532adad8918731742a
[Packages/TYPO3.CMS.git] / typo3 / sysext / install / Classes / Service / SqlSchemaMigrationService.php
1 <?php
2 namespace TYPO3\CMS\Install\Service;
3
4 /*
5 * This file is part of the TYPO3 CMS project.
6 *
7 * It is free software; you can redistribute it and/or modify it under
8 * the terms of the GNU General Public License, either version 2
9 * of the License, or any later version.
10 *
11 * For the full copyright and license information, please read the
12 * LICENSE.txt file that was distributed with this source code.
13 *
14 * The TYPO3 project - inspiring people to share!
15 */
16
17 /**
18 * Verify TYPO3 DB table structure. Mainly used in install tool
19 * compare wizard and extension manager.
20 */
21 class SqlSchemaMigrationService {
22
23 /**
24 * @constant Maximum field width of MySQL
25 */
26 const MYSQL_MAXIMUM_FIELD_WIDTH = 64;
27
28 /**
29 * @var string Prefix of deleted tables
30 */
31 protected $deletedPrefixKey = 'zzz_deleted_';
32
33 /**
34 * @var array Caching output of $GLOBALS['TYPO3_DB']->admin_get_charsets()
35 */
36 protected $character_sets = array();
37
38 /**
39 * Set prefix of deleted tables
40 *
41 * @param string $prefix Prefix string
42 */
43 public function setDeletedPrefixKey($prefix) {
44 $this->deletedPrefixKey = $prefix;
45 }
46
47 /**
48 * Get prefix of deleted tables
49 *
50 * @return string
51 */
52 public function getDeletedPrefixKey() {
53 return $this->deletedPrefixKey;
54 }
55
56 /**
57 * Reads the field definitions for the input SQL-file string
58 *
59 * @param string $fileContent Should be a string read from an SQL-file made with 'mysqldump [database_name] -d'
60 * @return array Array with information about table.
61 */
62 public function getFieldDefinitions_fileContent($fileContent) {
63 $lines = \TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode(LF, $fileContent, TRUE);
64 $table = '';
65 $total = array();
66 foreach ($lines as $value) {
67 if ($value[0] === '#') {
68 // Ignore comments
69 continue;
70 }
71 if (!strlen($table)) {
72 $parts = \TYPO3\CMS\Core\Utility\GeneralUtility::trimExplode(' ', $value, TRUE);
73 if (strtoupper($parts[0]) === 'CREATE' && strtoupper($parts[1]) === 'TABLE') {
74 $table = str_replace('`', '', $parts[2]);
75 // tablenames are always lowercase on windows!
76 if (TYPO3_OS == 'WIN') {
77 $table = strtolower($table);
78 }
79 }
80 } else {
81 if ($value[0] === ')' && substr($value, -1) === ';') {
82 $ttype = array();
83 if (preg_match('/(ENGINE|TYPE)[ ]*=[ ]*([a-zA-Z]*)/', $value, $ttype)) {
84 $total[$table]['extra']['ENGINE'] = $ttype[2];
85 }
86 // Otherwise, just do nothing: If table engine is not defined, just accept the system default.
87 // Set the collation, if specified
88 if (preg_match('/(COLLATE)[ ]*=[ ]*([a-zA-z0-9_-]+)/', $value, $tcollation)) {
89 $total[$table]['extra']['COLLATE'] = $tcollation[2];
90 } else {
91 // Otherwise, get the CHARACTER SET and try to find the default collation for it as returned by "SHOW CHARACTER SET" query (for details, see http://dev.mysql.com/doc/refman/5.1/en/charset-table.html)
92 if (preg_match('/(CHARSET|CHARACTER SET)[ ]*=[ ]*([a-zA-z0-9_-]+)/', $value, $tcharset)) {
93 // Note: Keywords "DEFAULT CHARSET" and "CHARSET" are the same, so "DEFAULT" can just be ignored
94 $charset = $tcharset[2];
95 } else {
96 $charset = $GLOBALS['TYPO3_DB']->default_charset;
97 }
98 $total[$table]['extra']['COLLATE'] = $this->getCollationForCharset($charset);
99 }
100 // Remove table marker and start looking for the next "CREATE TABLE" statement
101 $table = '';
102 } else {
103 // Strip trailing commas
104 $lineV = preg_replace('/,$/', '', $value);
105 $lineV = str_replace('`', '', $lineV);
106 // Reduce multiple blanks and tabs except newline
107 $lineV = preg_replace('/\h+/', ' ', $lineV);
108 $parts = explode(' ', $lineV, 2);
109 // Field definition
110 if (!preg_match('/(PRIMARY|UNIQUE|FULLTEXT|INDEX|KEY)/', $parts[0])) {
111 // Make sure there is no default value when auto_increment is set
112 if (stristr($parts[1], 'auto_increment')) {
113 $parts[1] = preg_replace('/ default \'0\'/i', '', $parts[1]);
114 }
115 // "default" is always lower-case
116 if (stristr($parts[1], ' DEFAULT ')) {
117 $parts[1] = str_ireplace(' DEFAULT ', ' default ', $parts[1]);
118 }
119 // Change order of "default" and "NULL" statements
120 $parts[1] = preg_replace('/(.*) (default .*) (NOT NULL)/', '$1 $3 $2', $parts[1]);
121 $parts[1] = preg_replace('/(.*) (default .*) (NULL)/', '$1 $3 $2', $parts[1]);
122 $key = $parts[0];
123 $total[$table]['fields'][$key] = $parts[1];
124 } else {
125 // Key definition
126 $search = array('/UNIQUE (INDEX|KEY)/', '/FULLTEXT (INDEX|KEY)/', '/INDEX/');
127 $replace = array('UNIQUE', 'FULLTEXT', 'KEY');
128 $lineV = preg_replace($search, $replace, $lineV);
129 if (preg_match('/PRIMARY|UNIQUE|FULLTEXT/', $parts[0])) {
130 $parts[1] = preg_replace('/^(KEY|INDEX) /', '', $parts[1]);
131 }
132 $newParts = explode(' ', $parts[1], 2);
133 $key = $parts[0] == 'PRIMARY' ? $parts[0] : $newParts[0];
134 $total[$table]['keys'][$key] = $lineV;
135 // This is a protection against doing something stupid: Only allow clearing of cache_* and index_* tables.
136 if (preg_match('/^(cache|index)_/', $table)) {
137 // Suggest to truncate (clear) this table
138 $total[$table]['extra']['CLEAR'] = 1;
139 }
140 }
141 }
142 }
143 }
144 return $total;
145 }
146
147 /**
148 * Look up the default collation for specified character set based on "SHOW CHARACTER SET" output
149 *
150 * @param string $charset Character set
151 * @return string Corresponding default collation
152 */
153 public function getCollationForCharset($charset) {
154 // Load character sets, if not cached already
155 if (!count($this->character_sets)) {
156 if (method_exists($GLOBALS['TYPO3_DB'], 'admin_get_charsets')) {
157 $this->character_sets = $GLOBALS['TYPO3_DB']->admin_get_charsets();
158 } else {
159 // Add empty element to avoid that the check will be repeated
160 $this->character_sets[$charset] = array();
161 }
162 }
163 $collation = '';
164 if (isset($this->character_sets[$charset]['Default collation'])) {
165 $collation = $this->character_sets[$charset]['Default collation'];
166 }
167 return $collation;
168 }
169
170 /**
171 * Reads the field definitions for the current database
172 *
173 * @return array Array with information about table.
174 */
175 public function getFieldDefinitions_database() {
176 $total = array();
177 $tempKeys = array();
178 $tempKeysPrefix = array();
179 $GLOBALS['TYPO3_DB']->sql_select_db();
180 echo $GLOBALS['TYPO3_DB']->sql_error();
181 $tables = $GLOBALS['TYPO3_DB']->admin_get_tables();
182 foreach ($tables as $tableName => $tableStatus) {
183 // Fields
184 $fieldInformation = $GLOBALS['TYPO3_DB']->admin_get_fields($tableName);
185 foreach ($fieldInformation as $fN => $fieldRow) {
186 $total[$tableName]['fields'][$fN] = $this->assembleFieldDefinition($fieldRow);
187 }
188 // Keys
189 $keyInformation = $GLOBALS['TYPO3_DB']->admin_get_keys($tableName);
190 foreach ($keyInformation as $keyRow) {
191 $keyName = $keyRow['Key_name'];
192 $colName = $keyRow['Column_name'];
193 if ($keyRow['Sub_part']) {
194 $colName .= '(' . $keyRow['Sub_part'] . ')';
195 }
196 $tempKeys[$tableName][$keyName][$keyRow['Seq_in_index']] = $colName;
197 if ($keyName == 'PRIMARY') {
198 $prefix = 'PRIMARY KEY';
199 } else {
200 if ($keyRow['Index_type'] == 'FULLTEXT') {
201 $prefix = 'FULLTEXT';
202 } elseif ($keyRow['Non_unique']) {
203 $prefix = 'KEY';
204 } else {
205 $prefix = 'UNIQUE';
206 }
207 $prefix .= ' ' . $keyName;
208 }
209 $tempKeysPrefix[$tableName][$keyName] = $prefix;
210 }
211 // Table status (storage engine, collaction, etc.)
212 if (is_array($tableStatus)) {
213 $tableExtraFields = array(
214 'Engine' => 'ENGINE',
215 'Collation' => 'COLLATE'
216 );
217 foreach ($tableExtraFields as $mysqlKey => $internalKey) {
218 if (isset($tableStatus[$mysqlKey])) {
219 $total[$tableName]['extra'][$internalKey] = $tableStatus[$mysqlKey];
220 }
221 }
222 }
223 }
224 // Compile key information:
225 if (count($tempKeys)) {
226 foreach ($tempKeys as $table => $keyInf) {
227 foreach ($keyInf as $kName => $index) {
228 ksort($index);
229 $total[$table]['keys'][$kName] = $tempKeysPrefix[$table][$kName] . ' (' . implode(',', $index) . ')';
230 }
231 }
232 }
233 return $total;
234 }
235
236 /**
237 * Compares two arrays with field information and returns information about fields that are MISSING and fields that have CHANGED.
238 * FDsrc and FDcomp can be switched if you want the list of stuff to remove rather than update.
239 *
240 * @param array $FDsrc Field definitions, source (from getFieldDefinitions_fileContent())
241 * @param array $FDcomp Field definitions, comparison. (from getFieldDefinitions_database())
242 * @param string $onlyTableList Table names (in list) which is the ONLY one observed.
243 * @param bool $ignoreNotNullWhenComparing If set, this function ignores NOT NULL statements of the SQL file field definition when comparing current field definition from database with field definition from SQL file. This way, NOT NULL statements will be executed when the field is initially created, but the SQL parser will never complain about missing NOT NULL statements afterwards.
244 * @return array Returns an array with 1) all elements from $FDsrc that is not in $FDcomp (in key 'extra') and 2) all elements from $FDsrc that is different from the ones in $FDcomp
245 */
246 public function getDatabaseExtra($FDsrc, $FDcomp, $onlyTableList = '', $ignoreNotNullWhenComparing = TRUE) {
247 $extraArr = array();
248 $diffArr = array();
249 if (is_array($FDsrc)) {
250 foreach ($FDsrc as $table => $info) {
251 if (!strlen($onlyTableList) || \TYPO3\CMS\Core\Utility\GeneralUtility::inList($onlyTableList, $table)) {
252 if (!isset($FDcomp[$table])) {
253 // If the table was not in the FDcomp-array, the result array is loaded with that table.
254 $extraArr[$table] = $info;
255 $extraArr[$table]['whole_table'] = 1;
256 } else {
257 $keyTypes = explode(',', 'extra,fields,keys');
258 foreach ($keyTypes as $theKey) {
259 if (is_array($info[$theKey])) {
260 foreach ($info[$theKey] as $fieldN => $fieldC) {
261 $fieldN = str_replace('`', '', $fieldN);
262 if ($fieldN == 'COLLATE') {
263 // @todo collation support is currently disabled (needs more testing)
264 continue;
265 }
266 if (!isset($FDcomp[$table][$theKey][$fieldN])) {
267 $extraArr[$table][$theKey][$fieldN] = $fieldC;
268 } else {
269 $fieldC = trim($fieldC);
270
271 // Lowercase the field type to surround false-positive schema changes to be
272 // reported just because of different caseing of characters
273 // The regex does just trigger for the first word followed by round brackets
274 // that contain a length. It does not trigger for e.g. "PRIMARY KEY" because
275 // "PRIMARY KEY" is being returned from the DB in upper case.
276 $fieldC = preg_replace_callback(
277 '/^([a-zA-Z0-9]+\(.*\))(\s)(.*)/',
278 create_function(
279 '$matches',
280 'return strtolower($matches[1]) . $matches[2] . $matches[3];'
281 ),
282 $fieldC
283 );
284
285 if ($ignoreNotNullWhenComparing) {
286 $fieldC = str_replace(' NOT NULL', '', $fieldC);
287 $FDcomp[$table][$theKey][$fieldN] = str_replace(' NOT NULL', '', $FDcomp[$table][$theKey][$fieldN]);
288 }
289 if ($fieldC !== $FDcomp[$table][$theKey][$fieldN]) {
290 $diffArr[$table][$theKey][$fieldN] = $fieldC;
291 $diffArr_cur[$table][$theKey][$fieldN] = $FDcomp[$table][$theKey][$fieldN];
292 }
293 }
294 }
295 }
296 }
297 }
298 }
299 }
300 }
301 $output = array(
302 'extra' => $extraArr,
303 'diff' => $diffArr,
304 'diff_currentValues' => $diffArr_cur
305 );
306 return $output;
307 }
308
309 /**
310 * Returns an array with SQL-statements that is needed to update according to the diff-array
311 *
312 * @param array $diffArr Array with differences of current and needed DB settings. (from getDatabaseExtra())
313 * @param string $keyList List of fields in diff array to take notice of.
314 * @return array Array of SQL statements (organized in keys depending on type)
315 */
316 public function getUpdateSuggestions($diffArr, $keyList = 'extra,diff') {
317 $statements = array();
318 $deletedPrefixKey = $this->deletedPrefixKey;
319 $deletedPrefixLength = strlen($deletedPrefixKey);
320 $remove = 0;
321 if ($keyList == 'remove') {
322 $remove = 1;
323 $keyList = 'extra';
324 }
325 $keyList = explode(',', $keyList);
326 foreach ($keyList as $theKey) {
327 if (is_array($diffArr[$theKey])) {
328 foreach ($diffArr[$theKey] as $table => $info) {
329 $whole_table = array();
330 if (isset($info['keys']) && is_array($info['keys'])) {
331 foreach ($info['keys'] as $fN => $fV) {
332 if (!$info['whole_table'] && $theKey === 'extra' && $remove) {
333 $statement = 'ALTER TABLE ' . $table . ($fN === 'PRIMARY' ? ' DROP PRIMARY KEY' : ' DROP KEY ' . $fN) . ';';
334 $statements['drop'][md5($statement)] = $statement;
335 }
336 }
337 }
338 if (is_array($info['fields'])) {
339 foreach ($info['fields'] as $fN => $fV) {
340 if ($info['whole_table']) {
341 $whole_table[] = $fN . ' ' . $fV;
342 } else {
343 // Special case to work around MySQL problems when adding auto_increment fields:
344 if (stristr($fV, 'auto_increment')) {
345 // The field can only be set "auto_increment" if there exists a PRIMARY key of that field already.
346 // The check does not look up which field is primary but just assumes it must be the field with the auto_increment value...
347 if (isset($diffArr['extra'][$table]['keys']['PRIMARY'])) {
348 // Remove "auto_increment" from the statement - it will be suggested in a 2nd step after the primary key was created
349 $fV = str_replace(' auto_increment', '', $fV);
350 } else {
351 // In the next step, attempt to clear the table once again (2 = force)
352 $info['extra']['CLEAR'] = 2;
353 }
354 }
355 if ($theKey == 'extra') {
356 if ($remove) {
357 if (substr($fN, 0, $deletedPrefixLength) !== $deletedPrefixKey) {
358 // we've to make sure we don't exceed the maximal length
359 $prefixedFieldName = $deletedPrefixKey . substr($fN, ($deletedPrefixLength - self::MYSQL_MAXIMUM_FIELD_WIDTH));
360 $statement = 'ALTER TABLE ' . $table . ' CHANGE ' . $fN . ' ' . $prefixedFieldName . ' ' . $fV . ';';
361 $statements['change'][md5($statement)] = $statement;
362 } else {
363 $statement = 'ALTER TABLE ' . $table . ' DROP ' . $fN . ';';
364 $statements['drop'][md5($statement)] = $statement;
365 }
366 } else {
367 $statement = 'ALTER TABLE ' . $table . ' ADD ' . $fN . ' ' . $fV . ';';
368 $statements['add'][md5($statement)] = $statement;
369 }
370 } elseif ($theKey == 'diff') {
371 $statement = 'ALTER TABLE ' . $table . ' CHANGE ' . $fN . ' ' . $fN . ' ' . $fV . ';';
372 $statements['change'][md5($statement)] = $statement;
373 $statements['change_currentValue'][md5($statement)] = $diffArr['diff_currentValues'][$table]['fields'][$fN];
374 }
375 }
376 }
377 }
378 if (is_array($info['keys'])) {
379 foreach ($info['keys'] as $fN => $fV) {
380 if ($info['whole_table']) {
381 $whole_table[] = $fV;
382 } else {
383 if ($theKey == 'extra') {
384 if (!$remove) {
385 $statement = 'ALTER TABLE ' . $table . ' ADD ' . $fV . ';';
386 $statements['add'][md5($statement)] = $statement;
387 }
388 } elseif ($theKey == 'diff') {
389 $statement = 'ALTER TABLE ' . $table . ($fN == 'PRIMARY' ? ' DROP PRIMARY KEY' : ' DROP KEY ' . $fN) . ';';
390 $statements['change'][md5($statement)] = $statement;
391 $statement = 'ALTER TABLE ' . $table . ' ADD ' . $fV . ';';
392 $statements['change'][md5($statement)] = $statement;
393 }
394 }
395 }
396 }
397 if (is_array($info['extra'])) {
398 $extras = array();
399 $extras_currentValue = array();
400 $clear_table = FALSE;
401 foreach ($info['extra'] as $fN => $fV) {
402 // Only consider statements which are missing in the database but don't remove existing properties
403 if (!$remove) {
404 if (!$info['whole_table']) {
405 // If the whole table is created at once, we take care of this later by imploding all elements of $info['extra']
406 if ($fN == 'CLEAR') {
407 // Truncate table must happen later, not now
408 // Valid values for CLEAR: 1=only clear if keys are missing, 2=clear anyway (force)
409 if (count($info['keys']) || $fV == 2) {
410 $clear_table = TRUE;
411 }
412 continue;
413 } else {
414 $extras[] = $fN . '=' . $fV;
415 $extras_currentValue[] = $fN . '=' . $diffArr['diff_currentValues'][$table]['extra'][$fN];
416 }
417 }
418 }
419 }
420 if ($clear_table) {
421 $statement = 'TRUNCATE TABLE ' . $table . ';';
422 $statements['clear_table'][md5($statement)] = $statement;
423 }
424 if (count($extras)) {
425 $statement = 'ALTER TABLE ' . $table . ' ' . implode(' ', $extras) . ';';
426 $statements['change'][md5($statement)] = $statement;
427 $statements['change_currentValue'][md5($statement)] = implode(' ', $extras_currentValue);
428 }
429 }
430 if ($info['whole_table']) {
431 if ($remove) {
432 if (substr($table, 0, $deletedPrefixLength) !== $deletedPrefixKey) {
433 // we've to make sure we don't exceed the maximal length
434 $prefixedTableName = $deletedPrefixKey . substr($table, ($deletedPrefixLength - self::MYSQL_MAXIMUM_FIELD_WIDTH));
435 $statement = 'ALTER TABLE ' . $table . ' RENAME ' . $prefixedTableName . ';';
436 $statements['change_table'][md5($statement)] = $statement;
437 } else {
438 $statement = 'DROP TABLE ' . $table . ';';
439 $statements['drop_table'][md5($statement)] = $statement;
440 }
441 // Count
442 $count = $GLOBALS['TYPO3_DB']->exec_SELECTcountRows('*', $table);
443 $statements['tables_count'][md5($statement)] = $count ? 'Records in table: ' . $count : '';
444 } else {
445 $statement = 'CREATE TABLE ' . $table . ' (
446 ' . implode(',
447 ', $whole_table) . '
448 )';
449 if ($info['extra']) {
450 foreach ($info['extra'] as $k => $v) {
451 if ($k == 'COLLATE' || $k == 'CLEAR') {
452 // Skip these special statements.
453 // @todo collation support is currently disabled (needs more testing)
454 continue;
455 }
456 // Add extra attributes like ENGINE, CHARSET, etc.
457 $statement .= ' ' . $k . '=' . $v;
458 }
459 }
460 $statement .= ';';
461 $statements['create_table'][md5($statement)] = $statement;
462 }
463 }
464 }
465 }
466 }
467 return $statements;
468 }
469
470 /**
471 * Converts a result row with field information into the SQL field definition string
472 *
473 * @param array $row MySQL result row
474 * @return string Field definition
475 */
476 public function assembleFieldDefinition($row) {
477 $field = array($row['Type']);
478 if ($row['Null'] == 'NO') {
479 $field[] = 'NOT NULL';
480 }
481 if (!strstr($row['Type'], 'blob') && !strstr($row['Type'], 'text')) {
482 // Add a default value if the field is not auto-incremented (these fields never have a default definition)
483 if (!stristr($row['Extra'], 'auto_increment')) {
484 if ($row['Default'] === NULL) {
485 $field[] = 'default NULL';
486 } else {
487 $field[] = 'default \'' . addslashes($row['Default']) . '\'';
488 }
489 }
490 }
491 if ($row['Extra']) {
492 $field[] = $row['Extra'];
493 }
494 return implode(' ', $field);
495 }
496
497 /**
498 * Returns an array where every entry is a single SQL-statement. Input must be formatted like an ordinary MySQL-dump files.
499 *
500 * @param string $sqlcode The SQL-file content. Provided that 1) every query in the input is ended with ';' and that a line in the file contains only one query or a part of a query.
501 * @param bool $removeNonSQL If set, non-SQL content (like comments and blank lines) is not included in the final output
502 * @param string $query_regex Regex to filter SQL lines to include
503 * @return array Array of SQL statements
504 */
505 public function getStatementArray($sqlcode, $removeNonSQL = FALSE, $query_regex = '') {
506 $sqlcodeArr = explode(LF, $sqlcode);
507 // Based on the assumption that the sql-dump has
508 $statementArray = array();
509 $statementArrayPointer = 0;
510 foreach ($sqlcodeArr as $line => $lineContent) {
511 $lineContent = trim($lineContent);
512 $is_set = 0;
513 // Auto_increment fields cannot have a default value!
514 if (stristr($lineContent, 'auto_increment')) {
515 $lineContent = preg_replace('/ default \'0\'/i', '', $lineContent);
516 }
517 if (!$removeNonSQL || $lineContent !== '' && $lineContent[0] !== '#' && substr($lineContent, 0, 2) !== '--') {
518 // '--' is seen as mysqldump comments from server version 3.23.49
519 $statementArray[$statementArrayPointer] .= $lineContent;
520 $is_set = 1;
521 }
522 if (substr($lineContent, -1) === ';') {
523 if (isset($statementArray[$statementArrayPointer])) {
524 if (!trim($statementArray[$statementArrayPointer]) || $query_regex && !preg_match(('/' . $query_regex . '/i'), trim($statementArray[$statementArrayPointer]))) {
525 unset($statementArray[$statementArrayPointer]);
526 }
527 }
528 $statementArrayPointer++;
529 } elseif ($is_set) {
530 $statementArray[$statementArrayPointer] .= LF;
531 }
532 }
533 return $statementArray;
534 }
535
536 /**
537 * Returns tables to create and how many records in each
538 *
539 * @param array $statements Array of SQL statements to analyse.
540 * @param bool $insertCountFlag If set, will count number of INSERT INTO statements following that table definition
541 * @return array Array with table definitions in index 0 and count in index 1
542 */
543 public function getCreateTables($statements, $insertCountFlag = FALSE) {
544 $crTables = array();
545 $insertCount = array();
546 foreach ($statements as $line => $lineContent) {
547 $reg = array();
548 if (preg_match('/^create[[:space:]]*table[[:space:]]*[`]?([[:alnum:]_]*)[`]?/i', substr($lineContent, 0, 100), $reg)) {
549 $table = trim($reg[1]);
550 if ($table) {
551 // Table names are always lowercase on Windows!
552 if (TYPO3_OS == 'WIN') {
553 $table = strtolower($table);
554 }
555 $sqlLines = explode(LF, $lineContent);
556 foreach ($sqlLines as $k => $v) {
557 if (stristr($v, 'auto_increment')) {
558 $sqlLines[$k] = preg_replace('/ default \'0\'/i', '', $v);
559 }
560 }
561 $lineContent = implode(LF, $sqlLines);
562 $crTables[$table] = $lineContent;
563 }
564 } elseif ($insertCountFlag && preg_match('/^insert[[:space:]]*into[[:space:]]*[`]?([[:alnum:]_]*)[`]?/i', substr($lineContent, 0, 100), $reg)) {
565 $nTable = trim($reg[1]);
566 $insertCount[$nTable]++;
567 }
568 }
569 return array($crTables, $insertCount);
570 }
571
572 /**
573 * Extracts all insert statements from $statement array where content is inserted into $table
574 *
575 * @param array $statements Array of SQL statements
576 * @param string $table Table name
577 * @return array Array of INSERT INTO statements where table match $table
578 */
579 public function getTableInsertStatements($statements, $table) {
580 $outStatements = array();
581 foreach ($statements as $line => $lineContent) {
582 $reg = array();
583 if (preg_match('/^insert[[:space:]]*into[[:space:]]*[`]?([[:alnum:]_]*)[`]?/i', substr($lineContent, 0, 100), $reg)) {
584 $nTable = trim($reg[1]);
585 if ($nTable && $table === $nTable) {
586 $outStatements[] = $lineContent;
587 }
588 }
589 }
590 return $outStatements;
591 }
592
593 /**
594 * Performs the queries passed from the input array.
595 *
596 * @param array $arr Array of SQL queries to execute.
597 * @param array $keyArr Array with keys that must match keys in $arr. Only where a key in this array is set and TRUE will the query be executed (meant to be passed from a form checkbox)
598 * @return mixed Array with error message from database if any occurred. Otherwise TRUE if everything was executed successfully.
599 */
600 public function performUpdateQueries($arr, $keyArr) {
601 $result = array();
602 if (is_array($arr)) {
603 foreach ($arr as $key => $string) {
604 if (isset($keyArr[$key]) && $keyArr[$key]) {
605 $res = $GLOBALS['TYPO3_DB']->admin_query($string);
606 if ($res === FALSE) {
607 $result[$key] = $GLOBALS['TYPO3_DB']->sql_error();
608 } elseif (is_resource($res) || is_a($res, '\\mysqli_result')) {
609 $GLOBALS['TYPO3_DB']->sql_free_result($res);
610 }
611 }
612 }
613 }
614 if (count($result) > 0) {
615 return $result;
616 } else {
617 return TRUE;
618 }
619 }
620
621 /**
622 * Returns list of tables in the database
623 *
624 * @return array List of tables.
625 * @see \TYPO3\CMS\Core\Database\DatabaseConnection::admin_get_tables()
626 */
627 public function getListOfTables() {
628 $whichTables = $GLOBALS['TYPO3_DB']->admin_get_tables(TYPO3_db);
629 foreach ($whichTables as $key => &$value) {
630 $value = $key;
631 }
632 unset($value);
633 return $whichTables;
634 }
635
636 }