e383e9fd813fa2866072ef0174ed38ce5c1da9d7
[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 ($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|SPATIAL|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)/', '/SPATIAL (INDEX|KEY)/', '/INDEX/');
127 $replace = array('UNIQUE', 'FULLTEXT', 'SPATIAL', 'KEY');
128 $lineV = preg_replace($search, $replace, $lineV);
129 if (preg_match('/PRIMARY|UNIQUE|FULLTEXT|SPATIAL/', $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']->connectDB();
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'] && $keyRow['Index_type'] !== 'SPATIAL') {
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['Index_type'] === 'SPATIAL') {
203 $prefix = 'SPATIAL';
204 } elseif ($keyRow['Non_unique']) {
205 $prefix = 'KEY';
206 } else {
207 $prefix = 'UNIQUE';
208 }
209 $prefix .= ' ' . $keyName;
210 }
211 $tempKeysPrefix[$tableName][$keyName] = $prefix;
212 }
213 // Table status (storage engine, collaction, etc.)
214 if (is_array($tableStatus)) {
215 $tableExtraFields = array(
216 'Engine' => 'ENGINE',
217 'Collation' => 'COLLATE'
218 );
219 foreach ($tableExtraFields as $mysqlKey => $internalKey) {
220 if (isset($tableStatus[$mysqlKey])) {
221 $total[$tableName]['extra'][$internalKey] = $tableStatus[$mysqlKey];
222 }
223 }
224 }
225 }
226 // Compile key information:
227 if (count($tempKeys)) {
228 foreach ($tempKeys as $table => $keyInf) {
229 foreach ($keyInf as $kName => $index) {
230 ksort($index);
231 $total[$table]['keys'][$kName] = $tempKeysPrefix[$table][$kName] . ' (' . implode(',', $index) . ')';
232 }
233 }
234 }
235 return $total;
236 }
237
238 /**
239 * Compares two arrays with field information and returns information about fields that are MISSING and fields that have CHANGED.
240 * FDsrc and FDcomp can be switched if you want the list of stuff to remove rather than update.
241 *
242 * @param array $FDsrc Field definitions, source (from getFieldDefinitions_fileContent())
243 * @param array $FDcomp Field definitions, comparison. (from getFieldDefinitions_database())
244 * @param string $onlyTableList Table names (in list) which is the ONLY one observed.
245 * @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.
246 * @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 $FDcomp
247 */
248 public function getDatabaseExtra($FDsrc, $FDcomp, $onlyTableList = '', $ignoreNotNullWhenComparing = FALSE) {
249 $extraArr = array();
250 $diffArr = array();
251 if (is_array($FDsrc)) {
252 foreach ($FDsrc as $table => $info) {
253 if ($onlyTableList === '' || \TYPO3\CMS\Core\Utility\GeneralUtility::inList($onlyTableList, $table)) {
254 if (!isset($FDcomp[$table])) {
255 // If the table was not in the FDcomp-array, the result array is loaded with that table.
256 $extraArr[$table] = $info;
257 $extraArr[$table]['whole_table'] = 1;
258 } else {
259 $keyTypes = explode(',', 'extra,fields,keys');
260 foreach ($keyTypes as $theKey) {
261 if (is_array($info[$theKey])) {
262 foreach ($info[$theKey] as $fieldN => $fieldC) {
263 $fieldN = str_replace('`', '', $fieldN);
264 if ($this->isDbalEnabled() && $fieldN === 'ENGINE') {
265 continue;
266 }
267 if ($fieldN == 'COLLATE') {
268 // @todo collation support is currently disabled (needs more testing)
269 continue;
270 }
271 if (!isset($FDcomp[$table][$theKey][$fieldN])) {
272 $extraArr[$table][$theKey][$fieldN] = $fieldC;
273 } else {
274 $fieldC = trim($fieldC);
275
276 // Lowercase the field type to surround false-positive schema changes to be
277 // reported just because of different caseing of characters
278 // The regex does just trigger for the first word followed by parentheses
279 // that contain a length. It does not trigger for e.g. "PRIMARY KEY" because
280 // "PRIMARY KEY" is being returned from the DB in upper case.
281 $fieldC = preg_replace_callback(
282 '/^([a-zA-Z0-9]+)(\([^)]*\)\s.*)/',
283 function($matches) { return strtolower($matches[1]) . $matches[2]; },
284 $fieldC
285 );
286
287 if ($ignoreNotNullWhenComparing) {
288 $fieldC = str_replace(' NOT NULL', '', $fieldC);
289 $FDcomp[$table][$theKey][$fieldN] = str_replace(' NOT NULL', '', $FDcomp[$table][$theKey][$fieldN]);
290 }
291 if ($fieldC !== $FDcomp[$table][$theKey][$fieldN]) {
292 $diffArr[$table][$theKey][$fieldN] = $fieldC;
293 $diffArr_cur[$table][$theKey][$fieldN] = $FDcomp[$table][$theKey][$fieldN];
294 }
295 }
296 }
297 }
298 }
299 }
300 }
301 }
302 }
303 $output = array(
304 'extra' => $extraArr,
305 'diff' => $diffArr,
306 'diff_currentValues' => $diffArr_cur
307 );
308 return $output;
309 }
310
311 /**
312 * Returns an array with SQL-statements that is needed to update according to the diff-array
313 *
314 * @param array $diffArr Array with differences of current and needed DB settings. (from getDatabaseExtra())
315 * @param string $keyList List of fields in diff array to take notice of.
316 * @return array Array of SQL statements (organized in keys depending on type)
317 */
318 public function getUpdateSuggestions($diffArr, $keyList = 'extra,diff') {
319 $statements = array();
320 $deletedPrefixKey = $this->deletedPrefixKey;
321 $deletedPrefixLength = strlen($deletedPrefixKey);
322 $remove = 0;
323 if ($keyList == 'remove') {
324 $remove = 1;
325 $keyList = 'extra';
326 }
327 $keyList = explode(',', $keyList);
328 foreach ($keyList as $theKey) {
329 if (is_array($diffArr[$theKey])) {
330 foreach ($diffArr[$theKey] as $table => $info) {
331 $whole_table = array();
332 if (isset($info['keys']) && is_array($info['keys'])) {
333 foreach ($info['keys'] as $fN => $fV) {
334 if (!$info['whole_table'] && $theKey === 'extra' && $remove) {
335 $statement = 'ALTER TABLE ' . $table . ($fN === 'PRIMARY' ? ' DROP PRIMARY KEY' : ' DROP KEY ' . $fN) . ';';
336 $statements['drop'][md5($statement)] = $statement;
337 }
338 }
339 }
340 if (is_array($info['fields'])) {
341 foreach ($info['fields'] as $fN => $fV) {
342 if ($info['whole_table']) {
343 $whole_table[] = $fN . ' ' . $fV;
344 } else {
345 // Special case to work around MySQL problems when adding auto_increment fields:
346 if (stristr($fV, 'auto_increment')) {
347 // The field can only be set "auto_increment" if there exists a PRIMARY key of that field already.
348 // The check does not look up which field is primary but just assumes it must be the field with the auto_increment value...
349 if (isset($diffArr['extra'][$table]['keys']['PRIMARY'])) {
350 // Remove "auto_increment" from the statement - it will be suggested in a 2nd step after the primary key was created
351 $fV = str_replace(' auto_increment', '', $fV);
352 } else {
353 // In the next step, attempt to clear the table once again (2 = force)
354 $info['extra']['CLEAR'] = 2;
355 }
356 }
357 if ($theKey == 'extra') {
358 if ($remove) {
359 if (substr($fN, 0, $deletedPrefixLength) !== $deletedPrefixKey) {
360 // we've to make sure we don't exceed the maximal length
361 $prefixedFieldName = $deletedPrefixKey . substr($fN, ($deletedPrefixLength - self::MYSQL_MAXIMUM_FIELD_WIDTH));
362 $statement = 'ALTER TABLE ' . $table . ' CHANGE ' . $fN . ' ' . $prefixedFieldName . ' ' . $fV . ';';
363 $statements['change'][md5($statement)] = $statement;
364 } else {
365 $statement = 'ALTER TABLE ' . $table . ' DROP ' . $fN . ';';
366 $statements['drop'][md5($statement)] = $statement;
367 }
368 } else {
369 $statement = 'ALTER TABLE ' . $table . ' ADD ' . $fN . ' ' . $fV . ';';
370 $statements['add'][md5($statement)] = $statement;
371 }
372 } elseif ($theKey == 'diff') {
373 $statement = 'ALTER TABLE ' . $table . ' CHANGE ' . $fN . ' ' . $fN . ' ' . $fV . ';';
374 $statements['change'][md5($statement)] = $statement;
375 $statements['change_currentValue'][md5($statement)] = $diffArr['diff_currentValues'][$table]['fields'][$fN];
376 }
377 }
378 }
379 }
380 if (is_array($info['keys'])) {
381 foreach ($info['keys'] as $fN => $fV) {
382 if ($info['whole_table']) {
383 $whole_table[] = $fV;
384 } else {
385 if ($theKey == 'extra') {
386 if (!$remove) {
387 $statement = 'ALTER TABLE ' . $table . ' ADD ' . $fV . ';';
388 $statements['add'][md5($statement)] = $statement;
389 }
390 } elseif ($theKey == 'diff') {
391 $statement = 'ALTER TABLE ' . $table . ($fN == 'PRIMARY' ? ' DROP PRIMARY KEY' : ' DROP KEY ' . $fN) . ';';
392 $statements['change'][md5($statement)] = $statement;
393 $statement = 'ALTER TABLE ' . $table . ' ADD ' . $fV . ';';
394 $statements['change'][md5($statement)] = $statement;
395 }
396 }
397 }
398 }
399 if (is_array($info['extra'])) {
400 $extras = array();
401 $extras_currentValue = array();
402 $clear_table = FALSE;
403 foreach ($info['extra'] as $fN => $fV) {
404 // Only consider statements which are missing in the database but don't remove existing properties
405 if (!$remove) {
406 if (!$info['whole_table']) {
407 // If the whole table is created at once, we take care of this later by imploding all elements of $info['extra']
408 if ($fN == 'CLEAR') {
409 // Truncate table must happen later, not now
410 // Valid values for CLEAR: 1=only clear if keys are missing, 2=clear anyway (force)
411 if (count($info['keys']) || $fV == 2) {
412 $clear_table = TRUE;
413 }
414 continue;
415 } else {
416 $extras[] = $fN . '=' . $fV;
417 $extras_currentValue[] = $fN . '=' . $diffArr['diff_currentValues'][$table]['extra'][$fN];
418 }
419 }
420 }
421 }
422 if ($clear_table) {
423 $statement = 'TRUNCATE TABLE ' . $table . ';';
424 $statements['clear_table'][md5($statement)] = $statement;
425 }
426 if (count($extras)) {
427 $statement = 'ALTER TABLE ' . $table . ' ' . implode(' ', $extras) . ';';
428 $statements['change'][md5($statement)] = $statement;
429 $statements['change_currentValue'][md5($statement)] = implode(' ', $extras_currentValue);
430 }
431 }
432 if ($info['whole_table']) {
433 if ($remove) {
434 if (substr($table, 0, $deletedPrefixLength) !== $deletedPrefixKey) {
435 // we've to make sure we don't exceed the maximal length
436 $prefixedTableName = $deletedPrefixKey . substr($table, ($deletedPrefixLength - self::MYSQL_MAXIMUM_FIELD_WIDTH));
437 $statement = 'ALTER TABLE ' . $table . ' RENAME ' . $prefixedTableName . ';';
438 $statements['change_table'][md5($statement)] = $statement;
439 } else {
440 $statement = 'DROP TABLE ' . $table . ';';
441 $statements['drop_table'][md5($statement)] = $statement;
442 }
443 // Count
444 $count = $GLOBALS['TYPO3_DB']->exec_SELECTcountRows('*', $table);
445 $statements['tables_count'][md5($statement)] = $count ? 'Records in table: ' . $count : '';
446 } else {
447 $statement = 'CREATE TABLE ' . $table . ' (
448 ' . implode(',
449 ', $whole_table) . '
450 )';
451 if ($info['extra']) {
452 foreach ($info['extra'] as $k => $v) {
453 if ($k == 'COLLATE' || $k == 'CLEAR') {
454 // Skip these special statements.
455 // @todo collation support is currently disabled (needs more testing)
456 continue;
457 }
458 // Add extra attributes like ENGINE, CHARSET, etc.
459 $statement .= ' ' . $k . '=' . $v;
460 }
461 }
462 $statement .= ';';
463 $statements['create_table'][md5($statement)] = $statement;
464 }
465 }
466 }
467 }
468 }
469 return $statements;
470 }
471
472 /**
473 * Converts a result row with field information into the SQL field definition string
474 *
475 * @param array $row MySQL result row
476 * @return string Field definition
477 */
478 public function assembleFieldDefinition($row) {
479 $field = array($row['Type']);
480 if ($row['Null'] == 'NO') {
481 $field[] = 'NOT NULL';
482 }
483 if (!strstr($row['Type'], 'blob') && !strstr($row['Type'], 'text')) {
484 // Add a default value if the field is not auto-incremented (these fields never have a default definition)
485 if (!stristr($row['Extra'], 'auto_increment')) {
486 if ($row['Default'] === NULL) {
487 $field[] = 'default NULL';
488 } else {
489 $field[] = 'default \'' . addslashes($row['Default']) . '\'';
490 }
491 }
492 }
493 if ($row['Extra']) {
494 $field[] = $row['Extra'];
495 }
496 if (trim($row['Comment']) !== '') {
497 $field[] = "COMMENT '" . $row['Comment'] . "'";
498 }
499 return implode(' ', $field);
500 }
501
502 /**
503 * Returns an array where every entry is a single SQL-statement. Input must be formatted like an ordinary MySQL-dump files.
504 *
505 * @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.
506 * @param bool $removeNonSQL If set, non-SQL content (like comments and blank lines) is not included in the final output
507 * @param string $query_regex Regex to filter SQL lines to include
508 * @return array Array of SQL statements
509 */
510 public function getStatementArray($sqlcode, $removeNonSQL = FALSE, $query_regex = '') {
511 $sqlcodeArr = explode(LF, $sqlcode);
512 // Based on the assumption that the sql-dump has
513 $statementArray = array();
514 $statementArrayPointer = 0;
515 foreach ($sqlcodeArr as $line => $lineContent) {
516 $lineContent = trim($lineContent);
517 $is_set = 0;
518 // Auto_increment fields cannot have a default value!
519 if (stristr($lineContent, 'auto_increment')) {
520 $lineContent = preg_replace('/ default \'0\'/i', '', $lineContent);
521 }
522 if (!$removeNonSQL || $lineContent !== '' && $lineContent[0] !== '#' && substr($lineContent, 0, 2) !== '--') {
523 // '--' is seen as mysqldump comments from server version 3.23.49
524 $statementArray[$statementArrayPointer] .= $lineContent;
525 $is_set = 1;
526 }
527 if (substr($lineContent, -1) === ';') {
528 if (isset($statementArray[$statementArrayPointer])) {
529 if (!trim($statementArray[$statementArrayPointer]) || $query_regex && !preg_match(('/' . $query_regex . '/i'), trim($statementArray[$statementArrayPointer]))) {
530 unset($statementArray[$statementArrayPointer]);
531 }
532 }
533 $statementArrayPointer++;
534 } elseif ($is_set) {
535 $statementArray[$statementArrayPointer] .= LF;
536 }
537 }
538 return $statementArray;
539 }
540
541 /**
542 * Returns tables to create and how many records in each
543 *
544 * @param array $statements Array of SQL statements to analyse.
545 * @param bool $insertCountFlag If set, will count number of INSERT INTO statements following that table definition
546 * @return array Array with table definitions in index 0 and count in index 1
547 */
548 public function getCreateTables($statements, $insertCountFlag = FALSE) {
549 $crTables = array();
550 $insertCount = array();
551 foreach ($statements as $line => $lineContent) {
552 $reg = array();
553 if (preg_match('/^create[[:space:]]*table[[:space:]]*[`]?([[:alnum:]_]*)[`]?/i', substr($lineContent, 0, 100), $reg)) {
554 $table = trim($reg[1]);
555 if ($table) {
556 // Table names are always lowercase on Windows!
557 if (TYPO3_OS == 'WIN') {
558 $table = strtolower($table);
559 }
560 $sqlLines = explode(LF, $lineContent);
561 foreach ($sqlLines as $k => $v) {
562 if (stristr($v, 'auto_increment')) {
563 $sqlLines[$k] = preg_replace('/ default \'0\'/i', '', $v);
564 }
565 }
566 $lineContent = implode(LF, $sqlLines);
567 $crTables[$table] = $lineContent;
568 }
569 } elseif ($insertCountFlag && preg_match('/^insert[[:space:]]*into[[:space:]]*[`]?([[:alnum:]_]*)[`]?/i', substr($lineContent, 0, 100), $reg)) {
570 $nTable = trim($reg[1]);
571 $insertCount[$nTable]++;
572 }
573 }
574 return array($crTables, $insertCount);
575 }
576
577 /**
578 * Extracts all insert statements from $statement array where content is inserted into $table
579 *
580 * @param array $statements Array of SQL statements
581 * @param string $table Table name
582 * @return array Array of INSERT INTO statements where table match $table
583 */
584 public function getTableInsertStatements($statements, $table) {
585 $outStatements = array();
586 foreach ($statements as $line => $lineContent) {
587 $reg = array();
588 if (preg_match('/^insert[[:space:]]*into[[:space:]]*[`]?([[:alnum:]_]*)[`]?/i', substr($lineContent, 0, 100), $reg)) {
589 $nTable = trim($reg[1]);
590 if ($nTable && $table === $nTable) {
591 $outStatements[] = $lineContent;
592 }
593 }
594 }
595 return $outStatements;
596 }
597
598 /**
599 * Performs the queries passed from the input array.
600 *
601 * @param array $arr Array of SQL queries to execute.
602 * @param array $keyArr Array with keys that must match keys in $arr. Only where a key in this array is set and TRUE will the query be executed (meant to be passed from a form checkbox)
603 * @return mixed Array with error message from database if any occurred. Otherwise TRUE if everything was executed successfully.
604 */
605 public function performUpdateQueries($arr, $keyArr) {
606 $result = array();
607 if (is_array($arr)) {
608 foreach ($arr as $key => $string) {
609 if (isset($keyArr[$key]) && $keyArr[$key]) {
610 $res = $GLOBALS['TYPO3_DB']->admin_query($string);
611 if ($res === FALSE) {
612 $result[$key] = $GLOBALS['TYPO3_DB']->sql_error();
613 } elseif (is_resource($res) || is_a($res, '\\mysqli_result')) {
614 $GLOBALS['TYPO3_DB']->sql_free_result($res);
615 }
616 }
617 }
618 }
619 if (count($result) > 0) {
620 return $result;
621 } else {
622 return TRUE;
623 }
624 }
625
626 /**
627 * Returns list of tables in the database
628 *
629 * @return array List of tables.
630 * @see \TYPO3\CMS\Core\Database\DatabaseConnection::admin_get_tables()
631 */
632 public function getListOfTables() {
633 $whichTables = $GLOBALS['TYPO3_DB']->admin_get_tables(TYPO3_db);
634 foreach ($whichTables as $key => &$value) {
635 $value = $key;
636 }
637 unset($value);
638 return $whichTables;
639 }
640
641 /**
642 * Checks if DBAL is enabled for the database connection
643 *
644 * @return bool
645 */
646 protected function isDbalEnabled() {
647 return \TYPO3\CMS\Core\Utility\ExtensionManagementUtility::isLoaded('dbal');
648 }
649
650 }