ILIAS  release_5-3 Revision v5.3.23-19-g915713cf615
ilMySQLAbstraction Class Reference

This class includes methods that help to abstract ILIAS 3.10.x MySQL tables for the use with MDB2 abstraction layer and full compliance mode support. More...

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Public Member Functions

 __construct ()
 Constructor. More...
 
 setTestMode ($a_testmode)
 
 getTestMode ()
 
 performAbstraction ($a_table_name, $a_set_text_ts_fields_notnull_false=true)
 Converts an existing (MySQL) ILIAS table in an abstract table. More...
 
 countRecords ($a_table_name)
 Check number of records before and after. More...
 
 storeStep ($a_table, $a_step)
 Store performed step. More...
 
 replaceEmptyStringsWithNull ($a_table)
 Replace empty strings with null values. More...
 
 replaceEmptyDatesWithNull ($a_table)
 Replace empty dates with null. More...
 
 lowerCaseTableName ($a_table_name)
 Lower case table and field names. More...
 
 lowerCaseColumnNames ($a_table_name)
 lower case column names More...
 
 removeAutoIncrement ($a_table_name, $a_auto_inc_field)
 Remove auto_increment attribute of a field. More...
 
 removePrimaryKey ($a_table, $a_pk)
 Remove primary key from table. More...
 
 removeIndices ($a_table, $a_indices)
 Remove Indices. More...
 
 removeConstraints ($a_table, $a_constraints)
 Remove Constraints. More...
 
 alterTable ($a_table, $a_fields, $a_set_text_ts_fields_notnull_false=true, $pk="")
 
 addPrimaryKey ($a_table, $a_pk)
 
 addIndices ($a_table, $a_indices)
 Add indices. More...
 
 addConstraints ($a_table, $a_constraints)
 Add constraints. More...
 
 fixIndexNames ($a_table)
 This is only used on tables that have already been abstracted but missed the "full treatment". More...
 
 addAutoIncrementSequence ($a_table, $a_auto_inc_field)
 Add autoincrement sequence. More...
 
 fixClobNotNull ($a_table)
 This is only used on tables that have already been abstracted but missed the "full treatment". More...
 
 fixDatetimeValues ($a_table)
 This is only used on tables that have already been abstracted but missed the "full treatment". More...
 

Data Fields

 $analyzer
 

Protected Attributes

 $ilDBInterface
 
 $manager
 
 $reverse
 
 $testmode
 

Detailed Description

This class includes methods that help to abstract ILIAS 3.10.x MySQL tables for the use with MDB2 abstraction layer and full compliance mode support.

Author
Alex Killing alex..nosp@m.kill.nosp@m.ing@g.nosp@m.mx.d.nosp@m.e
Version
Id
class.ilDBUpdate.php 18649 2009-01-21 09:59:23Z akill

Definition at line 12 of file class.ilMySQLAbstraction.php.

Constructor & Destructor Documentation

◆ __construct()

ilMySQLAbstraction::__construct ( )

Constructor.

Definition at line 40 of file class.ilMySQLAbstraction.php.

41 {
42 global $ilDB;
43
44 $this->ilDBInterface = $ilDB;
45 $this->manager = $ilDB->loadModule(ilDBConstants::MODULE_MANAGER);
46 $this->reverse = $ilDB->loadModule(ilDBConstants::MODULE_REVERSE);
47 if (@is_file('../Services/Database/classes/class.ilDBAnalyzer.php')) {
48 include_once '../Services/Database/classes/class.ilDBAnalyzer.php';
49 } else {
50 include_once './Services/Database/classes/class.ilDBAnalyzer.php';
51 }
52 $this->analyzer = new ilDBAnalyzer();
53 $this->setTestMode(false);
54 }
This class gives all kind of DB information using the MDB2 manager and reverse module.
Interface ilDBInterface.
global $ilDB

References $ilDB, ilDBConstants\MODULE_MANAGER, ilDBConstants\MODULE_REVERSE, and setTestMode().

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Member Function Documentation

◆ addAutoIncrementSequence()

ilMySQLAbstraction::addAutoIncrementSequence (   $a_table,
  $a_auto_inc_field 
)

Add autoincrement sequence.

Parameters
stringtable name
stringautoincrement field

Definition at line 601 of file class.ilMySQLAbstraction.php.

602 {
603 if ($a_auto_inc_field != "") {
604 $set = $this->ilDBInterface->query("SELECT MAX(`" . strtolower($a_auto_inc_field) . "`) ma FROM `" . $a_table . "`");
605 $rec = $this->ilDBInterface->fetchAssoc($set);
606 $next = $rec["ma"] + 1;
607 $this->ilDBInterface->createSequence($a_table, $next);
608 }
609 }
fetchAssoc($query_result)
query($query)
Run a (read-only) Query on the database.
createSequence($table_name, $start=1)

References ilDBInterface\createSequence(), ilDBInterface\fetchAssoc(), and ilDBInterface\query().

Referenced by performAbstraction().

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◆ addConstraints()

ilMySQLAbstraction::addConstraints (   $a_table,
  $a_constraints 
)

Add constraints.

Parameters
stringtable name
arrayconstraints information

Definition at line 540 of file class.ilMySQLAbstraction.php.

541 {
542 if (is_array($a_constraints)) {
543 $all_valid = true;
544
545 foreach ($a_constraints as $c) {
546 if (strlen($c["name"]) > 3) {
547 $all_valid = false;
548 }
549 }
550
551 $cnt = 1;
552 foreach ($a_constraints as $c) {
553 if (is_array($c["fields"])) {
554 if (!$all_valid) {
555 $c["name"] = "c" . $cnt;
556 }
557 $fields = array();
558 foreach ($c["fields"] as $f => $pos) {
559 $fields[] = strtolower($f);
560 }
561 $this->ilDBInterface->addUniqueConstraint($a_table, $fields, strtolower($c["name"]));
562 $cnt++;
563 }
564 }
565 }
566 }

Referenced by performAbstraction().

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◆ addIndices()

ilMySQLAbstraction::addIndices (   $a_table,
  $a_indices 
)

Add indices.

Parameters
stringtable name
arrayindices information

Definition at line 505 of file class.ilMySQLAbstraction.php.

506 {
507 if (is_array($a_indices)) {
508 $all_valid = true;
509
510 foreach ($a_indices as $index) {
511 if (strlen($index["name"]) > 3) {
512 $all_valid = false;
513 }
514 }
515
516 $cnt = 1;
517 foreach ($a_indices as $index) {
518 if (is_array($index["fields"])) {
519 if (!$all_valid) {
520 $index["name"] = "i" . $cnt;
521 }
522 $fields = array();
523 foreach ($index["fields"] as $f => $pos) {
524 $fields[] = strtolower($f);
525 }
526 $this->ilDBInterface->addIndex($a_table, $fields, strtolower($index["name"]), $index["fulltext"]);
527 $cnt++;
528 }
529 }
530 }
531 }
addIndex($table_name, $fields, $index_name='', $fulltext=false)
$index
Definition: metadata.php:60

References $index, and ilDBInterface\addIndex().

Referenced by fixIndexNames(), and performAbstraction().

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◆ addPrimaryKey()

ilMySQLAbstraction::addPrimaryKey (   $a_table,
  $a_pk 
)
Parameters
$a_table
$a_pk

Definition at line 487 of file class.ilMySQLAbstraction.php.

488 {
489 if (is_array($a_pk["fields"])) {
490 $fields = array();
491 foreach ($a_pk["fields"] as $f => $pos) {
492 $fields[] = strtolower($f);
493 }
494 $this->ilDBInterface->addPrimaryKey($a_table, $fields);
495 }
496 }
addPrimaryKey($table_name, $primary_keys)

References ilDBInterface\addPrimaryKey().

Referenced by performAbstraction().

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◆ alterTable()

ilMySQLAbstraction::alterTable (   $a_table,
  $a_fields,
  $a_set_text_ts_fields_notnull_false = true,
  $pk = "" 
)
Parameters
$a_table
$a_fields
bool$a_set_text_ts_fields_notnull_false
string$pk
Returns
mixed
Exceptions

ilDatabaseException

Definition at line 395 of file class.ilMySQLAbstraction.php.

396 {
397 $n_fields = array();
398 foreach ($a_fields as $field => $d) {
399 $def = $this->reverse->getTableFieldDefinition($a_table, $field);
400 $this->ilDBInterface->handleError($def);
401 $best_alt = $this->analyzer->getBestDefinitionAlternative($def);
402 $def = $def[$best_alt];
403
404 // remove "current_timestamp" default for timestamps (not supported)
405 if (strtolower($def["nativetype"]) == "timestamp"
406 && strtolower($def["default"]) == "current_timestamp"
407 ) {
408 unset($def["default"]);
409 }
410
411 if (strtolower($def["type"]) == "float") {
412 unset($def["length"]);
413 }
414
415 // remove all invalid attributes
416 foreach ($def as $k => $v) {
417 if (!in_array($k, array( "type", "default", "notnull", "length", "unsigned", "fixed" ))) {
418 unset($def[$k]);
419 }
420 }
421
422 // determine length for decimal type
423 if ($def["type"] == "decimal") {
424 $l_arr = explode(",", $def["length"]);
425 $def["length"] = $l_arr[0];
426 }
427
428 // remove length values for float
429 if ($def["type"] == "float") {
430 unset($def["length"]);
431 }
432
433 // set notnull to false for text/timestamp/date fields
434 if ($a_set_text_ts_fields_notnull_false
435 && ($def["type"] == "text"
436 || $def["type"] == "timestamp"
437 || $def["type"] == "date")
438 && (!is_array($pk) || !isset($field, $pk["fields"][$field]))
439 ) {
440 $def["notnull"] = false;
441 }
442
443 // set unsigned to false for integers
444 if ($def["type"] == "integer") {
445 $def["unsigned"] = false;
446 }
447
448 // set notnull to false for blob and clob
449 if ($def["type"] == "blob" || $def["type"] == "clob") {
450 $def["notnull"] = false;
451 }
452
453 // remove "0000-00-00..." default values
454 if (($def["type"] == "timestamp" && $def["default"] == "0000-00-00 00:00:00")
455 || ($def["type"] == "date" && $def["default"] == "0000-00-00")
456 ) {
457 unset($def["default"]);
458 }
459
460 $a = array();
461 foreach ($def as $k => $v) {
462 $a[$k] = $v;
463 }
464 $def["definition"] = $a;
465
466 $n_fields[$field] = $def;
467 }
468
469 $changes = array(
470 "change" => $n_fields,
471 );
472
473 if (!$this->getTestMode()) {
474 $r = $this->manager->alterTable($a_table, $changes, false);
475 } else {
476 $r = $this->manager->createTable(strtolower($a_table) . "_copy", $n_fields);
477 }
478
479 return true;
480 }
$def
Definition: croninfo.php:21
for( $i=6;$i< 13;$i++) for($i=1; $i< 13; $i++) $d
Definition: date.php:296
$r
Definition: example_031.php:79

References $d, $def, $r, and getTestMode().

Referenced by performAbstraction().

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◆ countRecords()

ilMySQLAbstraction::countRecords (   $a_table_name)

Check number of records before and after.

Parameters
string$a_table_name
Returns
int

Definition at line 198 of file class.ilMySQLAbstraction.php.

199 {
200 global $ilDB;
201
202 $st = $ilDB->prepare("SELECT count(*) AS cnt FROM `" . $a_table_name . "`");
203 $res = $ilDB->execute($st);
204 $rec = $ilDB->fetchAssoc($res);
205
206 return $rec["cnt"];
207 }
foreach($_POST as $key=> $value) $res

References $ilDB, and $res.

Referenced by performAbstraction().

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◆ fixClobNotNull()

ilMySQLAbstraction::fixClobNotNull (   $a_table)

This is only used on tables that have already been abstracted but missed the "full treatment".

Definition at line 616 of file class.ilMySQLAbstraction.php.

617 {
618 if (!$this->ilDBInterface->tableExists($a_table)) {
619 return;
620 }
621 $all_valid = true;
622 $fields = $this->analyzer->getFieldInformation($a_table);
623 foreach ($fields as $name => $def) {
624 if ($def["type"] == "clob" && $def["notnull"] == true) {
625 $this->ilDBInterface->modifyTableColumn($a_table, $name, array( "type" => "clob", "notnull" => false ));
626 }
627 }
628 }
modifyTableColumn($table, $column, $attributes)
tableExists($table_name)
if($format !==null) $name
Definition: metadata.php:146

References $def, $name, ilDBInterface\modifyTableColumn(), and ilDBInterface\tableExists().

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◆ fixDatetimeValues()

ilMySQLAbstraction::fixDatetimeValues (   $a_table)

This is only used on tables that have already been abstracted but missed the "full treatment".

Definition at line 635 of file class.ilMySQLAbstraction.php.

636 {
637 if (!$this->ilDBInterface->tableExists($a_table)) {
638 return;
639 }
640 $all_valid = true;
641 $fields = $this->analyzer->getFieldInformation($a_table);
642 foreach ($fields as $name => $def) {
643 if ($def["type"] == "timestamp"
644 && ($def["notnull"] == true || $def["default"] == "0000-00-00 00:00:00")
645 ) {
646 $nd = array( "type" => "timestamp", "notnull" => false );
647 if ($def["default"] == "0000-00-00 00:00:00") {
648 $nd["default"] = null;
649 }
650 $this->ilDBInterface->modifyTableColumn($a_table, $name, $nd);
651 }
652 if ($def["type"] == "date"
653 && ($def["notnull"] == true || $def["default"] == "0000-00-00")
654 ) {
655 $nd = array( "type" => "date", "notnull" => false );
656 if ($def["default"] == "0000-00-00") {
657 $nd["default"] = null;
658 }
659 $this->ilDBInterface->modifyTableColumn($a_table, $name, $nd);
660 }
661 }
662 }
$nd
Definition: error.php:10

References $def, $name, $nd, ilDBInterface\modifyTableColumn(), and ilDBInterface\tableExists().

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◆ fixIndexNames()

ilMySQLAbstraction::fixIndexNames (   $a_table)

This is only used on tables that have already been abstracted but missed the "full treatment".

Definition at line 573 of file class.ilMySQLAbstraction.php.

574 {
575 if (!$this->ilDBInterface->tableExists($a_table)) {
576 return;
577 }
578 $all_valid = true;
579 $indices = $this->analyzer->getIndicesInformation($a_table);
580 foreach ($indices as $index) {
581 if (strlen($index["name"]) > 3) {
582 $all_valid = false;
583 }
584 }
585
586 if (!$all_valid) {
587 foreach ($indices as $index) {
588 $this->ilDBInterface->dropIndex($a_table, $index["name"]);
589 }
590 $this->addIndices($a_table, $indices);
591 }
592 }
addIndices($a_table, $a_indices)
Add indices.
dropIndex($a_table, $a_name="i1")

References $index, addIndices(), ilDBInterface\dropIndex(), and ilDBInterface\tableExists().

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◆ getTestMode()

ilMySQLAbstraction::getTestMode ( )
Returns
bool

Definition at line 69 of file class.ilMySQLAbstraction.php.

References $testmode.

Referenced by alterTable(), and performAbstraction().

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◆ lowerCaseColumnNames()

ilMySQLAbstraction::lowerCaseColumnNames (   $a_table_name)

lower case column names

Parameters
string$a_table_name

Definition at line 312 of file class.ilMySQLAbstraction.php.

313 {
314 global $ilDB;
315
316 $result = mysql_query("SHOW COLUMNS FROM `" . $a_table_name . "`");
317 while ($row = mysql_fetch_assoc($result)) {
318 if ($row["Field"] != strtolower($row["Field"])) {
319 $ilDB->renameTableColumn($a_table_name, $row["Field"], strtolower($row["Field"]));
320 }
321 }
322 }
$result

References $ilDB, $result, and $row.

Referenced by performAbstraction().

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◆ lowerCaseTableName()

ilMySQLAbstraction::lowerCaseTableName (   $a_table_name)

Lower case table and field names.

Parameters
string$a_table_name

Definition at line 294 of file class.ilMySQLAbstraction.php.

295 {
296 global $ilDB;
297
298 if ($a_table_name != strtolower($a_table_name)) {
299 // this may look strange, but it does not work directly
300 // (seems that mysql does not see no difference whether upper or lowercase characters are used
301 mysql_query("ALTER TABLE `" . $a_table_name . "` RENAME `" . strtolower($a_table_name) . "xxx" . "`");
302 mysql_query("ALTER TABLE `" . strtolower($a_table_name) . "xxx" . "` RENAME `" . strtolower($a_table_name) . "`");
303 }
304 }

References $ilDB.

Referenced by performAbstraction().

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◆ performAbstraction()

ilMySQLAbstraction::performAbstraction (   $a_table_name,
  $a_set_text_ts_fields_notnull_false = true 
)

Converts an existing (MySQL) ILIAS table in an abstract table.

This means the table conforms to the MDB2 field types, uses sequences instead of auto_increment.

Parameters
$a_table_namestring

Definition at line 82 of file class.ilMySQLAbstraction.php.

83 {
84 // to do: log this procedure
85
86 // count number of records at the beginning
87 $nr_rec = $this->countRecords($a_table_name);
88
89 // convert table name to lowercase
90 if (!$this->getTestMode()) {
91 $this->lowerCaseTableName($a_table_name);
92 $a_table_name = strtolower($a_table_name);
93 $this->storeStep($a_table_name, 10);
94 }
95
96 // get auto increment information
97 $auto_inc_field = $this->analyzer->getAutoIncrementField($a_table_name);
98
99 // get primary key information
100 $pk = $this->analyzer->getPrimaryKeyInformation($a_table_name);
101
102 // get indices information
103 $indices = $this->analyzer->getIndicesInformation($a_table_name);
104
105 // get constraints information
106 $constraints = $this->analyzer->getConstraintsInformation($a_table_name);
107
108 // get field information
109 $fields = $this->analyzer->getFieldInformation($a_table_name);
110
111 if (!$this->getTestMode()) {
112 // remove auto increment
113 $this->removeAutoIncrement($a_table_name, $auto_inc_field, $fields);
114 $this->storeStep($a_table_name, 20);
115
116 // remove primary key
117 $this->removePrimaryKey($a_table_name, $pk);
118 $this->storeStep($a_table_name, 30);
119
120 // remove indices
121 $this->removeIndices($a_table_name, $indices);
122 $this->storeStep($a_table_name, 40);
123
124 // remove constraints
125 $this->removeConstraints($a_table_name, $constraints);
126 $this->storeStep($a_table_name, 45);
127 }
128
129 // alter table using mdb2 field types
130 $this->alterTable($a_table_name, $fields, $a_set_text_ts_fields_notnull_false, $pk);
131 if ($this->getTestMode()) {
132 $a_table_name = strtolower($a_table_name) . "_copy";
133 } else {
134 $this->storeStep($a_table_name, 50);
135 }
136
137 // lower case field names
138 $this->lowerCaseColumnNames($a_table_name);
139 if (!$this->getTestMode()) {
140 $this->storeStep($a_table_name, 60);
141 }
142
143 // add primary key
144 $this->addPrimaryKey($a_table_name, $pk);
145 if (!$this->getTestMode()) {
146 $this->storeStep($a_table_name, 70);
147 }
148
149 // add indices
150 $this->addIndices($a_table_name, $indices);
151 if (!$this->getTestMode()) {
152 $this->storeStep($a_table_name, 80);
153 }
154
155 // add constraints
156 $this->addConstraints($a_table_name, $constraints);
157 if (!$this->getTestMode()) {
158 $this->storeStep($a_table_name, 85);
159 }
160
161 // add "auto increment" sequence
162 if ($auto_inc_field != "") {
163 $this->addAutoIncrementSequence($a_table_name, $auto_inc_field);
164 }
165 if (!$this->getTestMode()) {
166 $this->storeStep($a_table_name, 90);
167 }
168
169 // replace empty strings with null values in text fields
170 $this->replaceEmptyStringsWithNull($a_table_name);
171 if (!$this->getTestMode()) {
172 $this->storeStep($a_table_name, 100);
173 }
174
175 // replace empty "0000-00-00..." dates with null
176 $this->replaceEmptyDatesWithNull($a_table_name);
177 if (!$this->getTestMode()) {
178 $this->storeStep($a_table_name, 110);
179 }
180
181 $nr_rec2 = $this->countRecords($a_table_name);
182
183 if (!$this->getTestMode()) {
184 if ($nr_rec != $nr_rec2) {
185 throw new ilDatabaseException("ilMySQLAbstraction: Unexpected difference in table record number, table '" . $a_table_name . "'."
186 . " Before: " . ((int) $nr_rec) . ", After: " . ((int) $nr_rec2) . ".");
187 }
188 }
189 }
Class ilDatabaseException.
lowerCaseColumnNames($a_table_name)
lower case column names
countRecords($a_table_name)
Check number of records before and after.
replaceEmptyDatesWithNull($a_table)
Replace empty dates with null.
removeConstraints($a_table, $a_constraints)
Remove Constraints.
removeIndices($a_table, $a_indices)
Remove Indices.
alterTable($a_table, $a_fields, $a_set_text_ts_fields_notnull_false=true, $pk="")
replaceEmptyStringsWithNull($a_table)
Replace empty strings with null values.
lowerCaseTableName($a_table_name)
Lower case table and field names.
removePrimaryKey($a_table, $a_pk)
Remove primary key from table.
addConstraints($a_table, $a_constraints)
Add constraints.
storeStep($a_table, $a_step)
Store performed step.
removeAutoIncrement($a_table_name, $a_auto_inc_field)
Remove auto_increment attribute of a field.
addAutoIncrementSequence($a_table, $a_auto_inc_field)
Add autoincrement sequence.

References addAutoIncrementSequence(), addConstraints(), addIndices(), addPrimaryKey(), alterTable(), countRecords(), getTestMode(), lowerCaseColumnNames(), lowerCaseTableName(), removeAutoIncrement(), removeConstraints(), removeIndices(), removePrimaryKey(), replaceEmptyDatesWithNull(), replaceEmptyStringsWithNull(), and storeStep().

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◆ removeAutoIncrement()

ilMySQLAbstraction::removeAutoIncrement (   $a_table_name,
  $a_auto_inc_field 
)

Remove auto_increment attribute of a field.

Parameters
stringtable name
stringautoincrement field

Definition at line 331 of file class.ilMySQLAbstraction.php.

332 {
333 if ($a_auto_inc_field != "") {
334 $this->ilDBInterface->modifyTableColumn($a_table_name, $a_auto_inc_field, array());
335 }
336 }

References ilDBInterface\modifyTableColumn().

Referenced by performAbstraction().

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◆ removeConstraints()

ilMySQLAbstraction::removeConstraints (   $a_table,
  $a_constraints 
)

Remove Constraints.

Parameters
stringtable name
arrayconstraints information

Definition at line 375 of file class.ilMySQLAbstraction.php.

376 {
377 if (is_array($a_constraints)) {
378 foreach ($a_constraints as $c) {
379 if ($c["type"] == "unique") {
380 $this->ilDBInterface->query("ALTER TABLE `" . $a_table . "` DROP INDEX `" . $c["name"] . "`");
381 }
382 }
383 }
384 }

References ilDBInterface\query().

Referenced by performAbstraction().

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◆ removeIndices()

ilMySQLAbstraction::removeIndices (   $a_table,
  $a_indices 
)

Remove Indices.

Parameters
stringtable name
arrayindices information

Definition at line 359 of file class.ilMySQLAbstraction.php.

360 {
361 if (is_array($a_indices)) {
362 foreach ($a_indices as $index) {
363 $this->ilDBInterface->query("ALTER TABLE `" . $a_table . "` DROP INDEX `" . $index["name"] . "`");
364 }
365 }
366 }

References $index, and ilDBInterface\query().

Referenced by performAbstraction().

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◆ removePrimaryKey()

ilMySQLAbstraction::removePrimaryKey (   $a_table,
  $a_pk 
)

Remove primary key from table.

Parameters
stringtable name
arrayprimary key information

Definition at line 345 of file class.ilMySQLAbstraction.php.

346 {
347 if ($a_pk["name"] != "") {
348 $this->ilDBInterface->dropPrimaryKey($a_table, $a_pk["name"]);
349 }
350 }

Referenced by performAbstraction().

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◆ replaceEmptyDatesWithNull()

ilMySQLAbstraction::replaceEmptyDatesWithNull (   $a_table)

Replace empty dates with null.

Parameters
$a_table
Exceptions

ilDatabaseException

Definition at line 257 of file class.ilMySQLAbstraction.php.

258 {
259 global $ilDB;
260
261 if (!$this->ilDBInterface->tableExists($a_table)) {
262 return;
263 }
264
265 $fields = $this->analyzer->getFieldInformation($a_table);
266 $upfields = array();
267 foreach ($fields as $field => $def) {
268 if ($def["type"] == "timestamp") {
269 $upfields[] = $field;
270 }
271 }
272 foreach ($upfields as $uf) {
273 $ilDB->query("UPDATE `" . $a_table . "` SET `" . $uf . "` = null WHERE `" . $uf . "` = '0000-00-00 00:00:00'");
274 }
275
276 $upfields = array();
277 reset($fields);
278 foreach ($fields as $field => $def) {
279 if ($def["type"] == "date") {
280 $upfields[] = $field;
281 }
282 }
283 foreach ($upfields as $uf) {
284 $ilDB->query("UPDATE `" . $a_table . "` SET `" . $uf . "` = null WHERE `" . $uf . "` = '0000-00-00'");
285 }
286 }

References $def, $ilDB, and ilDBInterface\tableExists().

Referenced by performAbstraction().

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◆ replaceEmptyStringsWithNull()

ilMySQLAbstraction::replaceEmptyStringsWithNull (   $a_table)

Replace empty strings with null values.

Parameters
$a_table
Exceptions

ilDatabaseException

Definition at line 232 of file class.ilMySQLAbstraction.php.

233 {
234 global $ilDB;
235
236 $fields = $this->analyzer->getFieldInformation($a_table);
237 $upfields = array();
238 foreach ($fields as $field => $def) {
239 if ($def["type"] == "text"
240 && ($def["length"] >= 1 && $def["length"] <= 4000)
241 ) {
242 $upfields[] = $field;
243 }
244 }
245 foreach ($upfields as $uf) {
246 $ilDB->query("UPDATE `" . $a_table . "` SET `" . $uf . "` = null WHERE `" . $uf . "` = ''");
247 }
248 }

References $def, and $ilDB.

Referenced by performAbstraction().

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◆ setTestMode()

ilMySQLAbstraction::setTestMode (   $a_testmode)
Parameters
$a_testmode

Definition at line 60 of file class.ilMySQLAbstraction.php.

61 {
62 $this->testmode = $a_testmode;
63 }

Referenced by __construct().

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◆ storeStep()

ilMySQLAbstraction::storeStep (   $a_table,
  $a_step 
)

Store performed step.

Parameters
$a_table
$a_step

Definition at line 216 of file class.ilMySQLAbstraction.php.

217 {
218 $st = $this->ilDBInterface->prepareManip("REPLACE INTO abstraction_progress (table_name, step)" . " VALUES (?,?)", array(
219 "text",
220 "integer",
221 ));
222 $this->ilDBInterface->execute($st, array( $a_table, $a_step ));
223 }
execute($stmt, $data=array())
prepareManip($a_query, $a_types=null)

References ilDBInterface\execute(), and ilDBInterface\prepareManip().

Referenced by performAbstraction().

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Field Documentation

◆ $analyzer

ilMySQLAbstraction::$analyzer

Definition at line 18 of file class.ilMySQLAbstraction.php.

◆ $ilDBInterface

ilMySQLAbstraction::$ilDBInterface
protected

Definition at line 22 of file class.ilMySQLAbstraction.php.

◆ $manager

ilMySQLAbstraction::$manager
protected

Definition at line 26 of file class.ilMySQLAbstraction.php.

◆ $reverse

ilMySQLAbstraction::$reverse
protected

Definition at line 30 of file class.ilMySQLAbstraction.php.

◆ $testmode

ilMySQLAbstraction::$testmode
protected

Definition at line 34 of file class.ilMySQLAbstraction.php.

Referenced by getTestMode().


The documentation for this class was generated from the following file: