/
SPSQLExporter.m
923 lines (730 loc) · 35.6 KB
/
SPSQLExporter.m
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
//
// SPSQLExporter.m
// sequel-pro
//
// Created by Stuart Connolly (stuconnolly.com) on August 29, 2009.
// Copyright (c) 2009 Stuart Connolly. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
//
// More info at <https://github.com/sequelpro/sequelpro>
#import "SPSQLExporter.h"
#import "SPTablesList.h"
#import "SPFileHandle.h"
#import "SPExportUtilities.h"
#import "SPExportFile.h"
#import "SPTableData.h"
#import "RegexKitLite.h"
#import <SPMySQL/SPMySQL.h>
@interface SPSQLExporter ()
- (NSString *)_createViewPlaceholderSyntaxForView:(NSString *)viewName;
@end
@implementation SPSQLExporter
@synthesize delegate;
@synthesize sqlExportTables;
@synthesize sqlDatabaseHost;
@synthesize sqlDatabaseName;
@synthesize sqlDatabaseVersion;
@synthesize sqlExportCurrentTable;
@synthesize sqlExportErrors;
@synthesize sqlOutputIncludeUTF8BOM;
@synthesize sqlOutputEncodeBLOBasHex;
@synthesize sqlOutputIncludeErrors;
@synthesize sqlOutputIncludeAutoIncrement;
@synthesize sqlCurrentTableExportIndex;
@synthesize sqlInsertAfterNValue;
@synthesize sqlInsertDivider;
/**
* Initialise an instance of SPSQLExporter using the supplied delegate.
*
* @param exportDelegate The exporter delegate
*
* @return The initialised instance
*/
- (id)initWithDelegate:(NSObject<SPSQLExporterProtocol> *)exportDelegate
{
if ((self = [super init])) {
SPExportDelegateConformsToProtocol(exportDelegate, @protocol(SPSQLExporterProtocol));
[self setDelegate:exportDelegate];
[self setSqlExportCurrentTable:nil];
[self setSqlInsertDivider:SPSQLInsertEveryNDataBytes];
[self setSqlInsertAfterNValue:250000];
}
return self;
}
/**
* Start the SQL export process. This method is automatically called when an instance of this class
* is placed on an NSOperationQueue. Do not call it directly as there is no manual multithreading.
*/
- (void)main
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
sqlTableDataInstance = [[[SPTableData alloc] init] autorelease];
[sqlTableDataInstance setConnection:connection];
SPMySQLResult *queryResult;
SPMySQLStreamingResult *streamingResult;
NSArray *row;
NSString *tableName;
NSDictionary *tableDetails;
BOOL *useRawDataForColumnAtIndex, *useRawHexDataForColumnAtIndex;
SPTableType tableType = SPTableTypeTable;
id createTableSyntax = nil;
NSUInteger j, k, t, s, rowCount, queryLength, lastProgressValue, cleanAutoReleasePool = NO;
BOOL sqlOutputIncludeStructure;
BOOL sqlOutputIncludeContent;
BOOL sqlOutputIncludeDropSyntax;
NSMutableArray *tables = [NSMutableArray array];
NSMutableArray *procs = [NSMutableArray array];
NSMutableArray *funcs = [NSMutableArray array];
NSMutableString *metaString = [NSMutableString string];
NSMutableString *errors = [[NSMutableString alloc] init];
NSMutableString *sqlString = [[NSMutableString alloc] init];
NSMutableDictionary *viewSyntaxes = [NSMutableDictionary dictionary];
// Check that we have all the required info before starting the export
if ((![self sqlExportTables]) || ([[self sqlExportTables] count] == 0) ||
(![self sqlDatabaseHost]) || ([[self sqlDatabaseHost] isEqualToString:@""]) ||
(![self sqlDatabaseName]) || ([[self sqlDatabaseName] isEqualToString:@""]) ||
(![self sqlDatabaseVersion] || ([[self sqlDatabaseName] isEqualToString:@""])))
{
[errors release];
[sqlString release];
[pool release];
return;
}
// Inform the delegate that the export process is about to begin
[delegate performSelectorOnMainThread:@selector(sqlExportProcessWillBegin:) withObject:self waitUntilDone:NO];
// Mark the process as running
[self setExportProcessIsRunning:YES];
// Clear errors
[self setSqlExportErrors:@""];
// Copy over the selected item names into tables in preparation for iteration
NSMutableArray *targetArray;
for (NSArray *item in [self sqlExportTables])
{
// Check for cancellation flag
if ([self isCancelled]) {
[errors release];
[sqlString release];
[pool release];
return;
}
switch ([NSArrayObjectAtIndex(item, 4) intValue]) {
case SPTableTypeProc:
targetArray = procs;
break;
case SPTableTypeFunc:
targetArray = funcs;
break;
default:
targetArray = tables;
break;
}
[targetArray addObject:item];
}
// If required write the UTF-8 Byte Order Mark (BOM)
if ([self sqlOutputIncludeUTF8BOM]) {
[metaString setString:@"\xef\xbb\xbf"];
[metaString appendString:@"# ************************************************************\n"];
}
else {
[metaString setString:@"# ************************************************************\n"];
}
// Add the dump header to the dump file
[metaString appendString:@"# Sequel Pro SQL dump\n"];
[metaString appendFormat:@"# %@ %@\n#\n", NSLocalizedString(@"Version", @"export header version label"), [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleVersion"]];
[metaString appendFormat:@"# %@\n# %@\n#\n", SPLOCALIZEDURL_HOMEPAGE, SPDevURL];
[metaString appendFormat:@"# %@: %@ (MySQL %@)\n", NSLocalizedString(@"Host", @"export header host label"), [self sqlDatabaseHost], [self sqlDatabaseVersion]];
[metaString appendFormat:@"# %@: %@\n", NSLocalizedString(@"Database", @"export header database label"), [self sqlDatabaseName]];
[metaString appendFormat:@"# %@: %@\n", NSLocalizedString(@"Generation Time", @"export header generation time label"), [NSDate date]];
[metaString appendString:@"# ************************************************************\n\n\n"];
// Add commands to store the client encodings used when importing and set to UTF8 to preserve data
[metaString appendString:@"/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;\n"];
[metaString appendString:@"/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;\n"];
[metaString appendString:@"/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;\n"];
[metaString appendString:@"/*!40101 SET NAMES utf8 */;\n"];
[metaString appendString:@"/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;\n"];
[metaString appendString:@"/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;\n"];
[metaString appendString:@"/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;\n\n\n"];
[[self exportOutputFile] writeData:[metaString dataUsingEncoding:[self exportOutputEncoding]]];
// Loop through the selected tables
for (NSArray *table in tables)
{
// Check for cancellation flag
if ([self isCancelled]) {
[errors release];
[sqlString release];
[pool release];
return;
}
[self setSqlCurrentTableExportIndex:[self sqlCurrentTableExportIndex]+1];
tableName = NSArrayObjectAtIndex(table, 0);
sqlOutputIncludeStructure = [NSArrayObjectAtIndex(table, 1) boolValue];
sqlOutputIncludeContent = [NSArrayObjectAtIndex(table, 2) boolValue];
sqlOutputIncludeDropSyntax = [NSArrayObjectAtIndex(table, 3) boolValue];
// Skip tables if not set to output any detail for them
if (!sqlOutputIncludeStructure && !sqlOutputIncludeContent && !sqlOutputIncludeDropSyntax) {
continue;
}
// Set the current table
[self setSqlExportCurrentTable:tableName];
// Inform the delegate that we are about to start fetcihing data for the current table
[delegate performSelectorOnMainThread:@selector(sqlExportProcessWillBeginFetchingData:) withObject:self waitUntilDone:NO];
lastProgressValue = 0;
// Add the name of table
[[self exportOutputFile] writeData:[[NSString stringWithFormat:@"# %@ %@\n# ------------------------------------------------------------\n\n", NSLocalizedString(@"Dump of table", @"sql export dump of table label"), tableName] dataUsingEncoding:[self exportOutputEncoding]]];
// Determine whether this table is a table or a view via the CREATE TABLE command, and keep the create table syntax
queryResult = [connection queryString:[NSString stringWithFormat:@"SHOW CREATE TABLE %@", [tableName backtickQuotedString]]];
[queryResult setReturnDataAsStrings:YES];
if ([queryResult numberOfRows]) {
tableDetails = [[NSDictionary alloc] initWithDictionary:[queryResult getRowAsDictionary]];
if ([tableDetails objectForKey:@"Create View"]) {
[viewSyntaxes setValue:[[[[tableDetails objectForKey:@"Create View"] copy] autorelease] createViewSyntaxPrettifier] forKey:tableName];
createTableSyntax = [self _createViewPlaceholderSyntaxForView:tableName];
tableType = SPTableTypeView;
}
else {
createTableSyntax = [[[tableDetails objectForKey:@"Create Table"] copy] autorelease];
tableType = SPTableTypeTable;
}
[tableDetails release];
}
if ([connection queryErrored]) {
[errors appendFormat:@"%@\n", [connection lastErrorMessage]];
[[self exportOutputFile] writeData:[[NSString stringWithFormat:@"# Error: %@\n\n\n", [connection lastErrorMessage]] dataUsingEncoding:NSUTF8StringEncoding]];
continue;
}
// Add a 'DROP TABLE' command if required
if (sqlOutputIncludeDropSyntax) {
[[self exportOutputFile] writeData:[[NSString stringWithFormat:@"DROP %@ IF EXISTS %@;\n\n", ((tableType == SPTableTypeTable) ? @"TABLE" : @"VIEW"), [tableName backtickQuotedString]]
dataUsingEncoding:[self exportOutputEncoding]]];
}
// Add the create syntax for the table if specified in the export dialog
if (sqlOutputIncludeStructure && createTableSyntax) {
if ([createTableSyntax isKindOfClass:[NSData class]]) {
createTableSyntax = [[[NSString alloc] initWithData:createTableSyntax encoding:[self exportOutputEncoding]] autorelease];
}
// If necessary strip out the AUTO_INCREMENT from the table structure definition
if (![self sqlOutputIncludeAutoIncrement]) {
createTableSyntax = [createTableSyntax stringByReplacingOccurrencesOfRegex:[NSString stringWithFormat:@"AUTO_INCREMENT=[0-9]+ "] withString:@""];
}
[[self exportOutputFile] writeData:[createTableSyntax dataUsingEncoding:NSUTF8StringEncoding]];
[[self exportOutputFile] writeData:[@";\n\n" dataUsingEncoding:NSUTF8StringEncoding]];
}
// Add the table content if required
if (sqlOutputIncludeContent && (tableType == SPTableTypeTable)) {
// Retrieve the table details via the data class, and use it to build an array containing column numeric status
tableDetails = [NSDictionary dictionaryWithDictionary:[sqlTableDataInstance informationForTable:tableName]];
NSUInteger colCount = [[tableDetails objectForKey:@"columns"] count];
NSMutableArray *rawColumnNames = [NSMutableArray arrayWithCapacity:colCount];
NSMutableArray *queryColumnDetails = [NSMutableArray arrayWithCapacity:colCount];
useRawDataForColumnAtIndex = malloc(sizeof(BOOL) * colCount);
useRawHexDataForColumnAtIndex = malloc(sizeof(BOOL) * colCount);
// Determine whether raw data can be used for each column during processing - safe numbers and hex-encoded data.
for (j = 0; j < colCount; j++)
{
NSDictionary *theColumnDetail = NSArrayObjectAtIndex([tableDetails objectForKey:@"columns"], j);
NSString *theTypeGrouping = [theColumnDetail objectForKey:@"typegrouping"];
// Start by setting the column as non-safe
useRawDataForColumnAtIndex[j] = NO;
useRawHexDataForColumnAtIndex[j] = NO;
// Determine whether the column should be retrieved as hex data from the server - for binary strings, to
// avoid encoding issues when processing
if ([self sqlOutputEncodeBLOBasHex]
&& [theTypeGrouping isEqualToString:@"string"]
&& ([[theColumnDetail objectForKey:@"binary"] boolValue] || [[theColumnDetail objectForKey:@"collation"] hasSuffix:@"_bin"]))
{
useRawHexDataForColumnAtIndex[j] = YES;
}
// Floats, integers and bits can be output directly assuming they're non-binary
if (![[theColumnDetail objectForKey:@"binary"] boolValue]
&& ([theTypeGrouping isEqualToString:@"bit"] || [theTypeGrouping isEqualToString:@"integer"] || [theTypeGrouping isEqualToString:@"float"]))
{
useRawDataForColumnAtIndex[j] = YES;
}
// Set up the column query string parts
[rawColumnNames addObject:[theColumnDetail objectForKey:@"name"]];
if (useRawHexDataForColumnAtIndex[j]) {
[queryColumnDetails addObject:[NSString stringWithFormat:@"HEX(%@)", [[theColumnDetail objectForKey:@"name"] mySQLBacktickQuotedString]]];
}
else {
[queryColumnDetails addObject:[[theColumnDetail objectForKey:@"name"] mySQLBacktickQuotedString]];
}
}
// Retrieve the number of rows in the table for progress bar drawing
NSArray *rowArray = [[connection queryString:[NSString stringWithFormat:@"SELECT COUNT(1) FROM %@", [tableName backtickQuotedString]]] getRowAsArray];
if ([connection queryErrored] || ![rowArray count]) {
[errors appendFormat:@"%@\n", [connection lastErrorMessage]];
[[self exportOutputFile] writeData:[[NSString stringWithFormat:@"# Error: %@\n\n\n", [connection lastErrorMessage]] dataUsingEncoding:NSUTF8StringEncoding]];
free(useRawDataForColumnAtIndex);
free(useRawHexDataForColumnAtIndex);
continue;
}
rowCount = [NSArrayObjectAtIndex(rowArray, 0) integerValue];
if (rowCount) {
// Set up a result set in streaming mode
streamingResult = [[connection streamingQueryString:[NSString stringWithFormat:@"SELECT %@ FROM %@", [queryColumnDetails componentsJoinedByString:@", "], [tableName backtickQuotedString]] useLowMemoryBlockingStreaming:([self exportUsingLowMemoryBlockingStreaming])] retain];
// Inform the delegate that we are about to start writing data for the current table
[delegate performSelectorOnMainThread:@selector(sqlExportProcessWillBeginWritingData:) withObject:self waitUntilDone:NO];
queryLength = 0;
// Lock the table for writing and disable keys if supported
[metaString setString:@""];
[metaString appendFormat:@"LOCK TABLES %@ WRITE;\n/*!40000 ALTER TABLE %@ DISABLE KEYS */;\n\n", [tableName backtickQuotedString], [tableName backtickQuotedString]];
[[self exportOutputFile] writeData:[metaString dataUsingEncoding:[self exportOutputEncoding]]];
// Construct the start of the insertion command
[[self exportOutputFile] writeData:[[NSString stringWithFormat:@"INSERT INTO %@ (%@)\nVALUES", [tableName backtickQuotedString], [rawColumnNames componentsJoinedAndBacktickQuoted]] dataUsingEncoding:NSUTF8StringEncoding]];
// Iterate through the rows to construct a VALUES group for each
j = 0, k = 0;
NSAutoreleasePool *sqlExportPool = [[NSAutoreleasePool alloc] init];
// Inform the delegate that we are about to start writing the data to disk
[delegate performSelectorOnMainThread:@selector(sqlExportProcessWillBeginWritingData:) withObject:self waitUntilDone:NO];
while ((row = [streamingResult getRowAsArray]))
{
// Check for cancellation flag
if ([self isCancelled]) {
[connection cancelCurrentQuery];
[streamingResult cancelResultLoad];
[streamingResult release];
[sqlExportPool release];
[errors release];
[sqlString release];
[pool release];
free(useRawDataForColumnAtIndex);
free(useRawHexDataForColumnAtIndex);
return;
}
j++;
k++;
// Update the progress
NSUInteger progress = (NSUInteger)(j * ([self exportMaxProgress] / rowCount));
if (progress > lastProgressValue) {
[self setExportProgressValue:progress];
lastProgressValue = progress;
// Inform the delegate that the export's progress has been updated
[delegate performSelectorOnMainThread:@selector(sqlExportProcessProgressUpdated:) withObject:self waitUntilDone:NO];
}
// Set up the new row as appropriate. If a new INSERT statement should be created,
// set one up; otherwise, set up a new row
if ((([self sqlInsertDivider] == SPSQLInsertEveryNDataBytes) && (queryLength >= ([self sqlInsertAfterNValue] * 1024))) ||
(([self sqlInsertDivider] == SPSQLInsertEveryNRows) && (k == [self sqlInsertAfterNValue])))
{
[sqlString setString:@";\n\nINSERT INTO "];
[sqlString appendString:[tableName backtickQuotedString]];
[sqlString appendString:@" ("];
[sqlString appendString:[rawColumnNames componentsJoinedAndBacktickQuoted]];
[sqlString appendString:@")\nVALUES\n\t("];
queryLength = 0, k = 0;
// Use the opportunity to drain and reset the autorelease pool at the end of this row
cleanAutoReleasePool = YES;
}
else if (j == 1) {
[sqlString setString:@"\n\t("];
}
else {
[sqlString setString:@",\n\t("];
}
for (t = 0; t < colCount; t++)
{
id object = NSArrayObjectAtIndex(row, t);
// Add NULL values directly to the output row; use a pointer comparison to the singleton
// instance for speed.
if (object == [NSNull null]) {
[sqlString appendString:@"NULL"];
}
// Add trusted raw values directly
else if (useRawDataForColumnAtIndex[t]) {
[sqlString appendString:object];
}
// If the field is of type BIT, the values need a binary prefix of b'x'.
else if ([[NSArrayObjectAtIndex([tableDetails objectForKey:@"columns"], t) objectForKey:@"type"] isEqualToString:@"BIT"]) {
[sqlString appendFormat:@"b'%@'", [object description]];
}
// Add pre-encoded hex types (binary strings) as enclosed but otherwise trusted data
else if (useRawHexDataForColumnAtIndex[t]) {
[sqlString appendFormat:@"X'%@'", object];
}
// GEOMETRY data types directly as hex data
else if ([object isKindOfClass:[SPMySQLGeometryData class]]) {
[sqlString appendString:[connection escapeAndQuoteData:[object data]]];
}
// Add zero-length data or strings as an empty string
else if ([object length] == 0) {
[sqlString appendString:@"''"];
}
// Add other data types as hex data
else if ([object isKindOfClass:[NSData class]]) {
if ([self sqlOutputEncodeBLOBasHex]) {
[sqlString appendString:[connection escapeAndQuoteData:object]];
}
else {
NSString *data = [[NSString alloc] initWithData:object encoding:[self exportOutputEncoding]];
if (data == nil) {
data = [[NSString alloc] initWithData:object encoding:NSASCIIStringEncoding];
}
[sqlString appendFormat:@"'%@'", data];
[data release];
}
}
// Otherwise add a quoted string with special characters escaped
else {
[sqlString appendString:[connection escapeAndQuoteString:object]];
}
// Add the field separator if this isn't the last cell in the row
if (t != ([row count] - 1)) [sqlString appendString:@","];
}
[sqlString appendString:@")"];
queryLength += [sqlString length];
// Write this row to the file
[[self exportOutputFile] writeData:[sqlString dataUsingEncoding:NSUTF8StringEncoding]];
// Clean autorelease pool if so decided earlier
if (cleanAutoReleasePool) {
[sqlExportPool release];
sqlExportPool = [[NSAutoreleasePool alloc] init];
cleanAutoReleasePool = NO;
}
}
// Complete the command
[[self exportOutputFile] writeData:[@";\n\n" dataUsingEncoding:NSUTF8StringEncoding]];
// Unlock the table and re-enable keys if supported
[metaString setString:@""];
[metaString appendFormat:@"/*!40000 ALTER TABLE %@ ENABLE KEYS */;\nUNLOCK TABLES;\n", [tableName backtickQuotedString]];
[[self exportOutputFile] writeData:[metaString dataUsingEncoding:NSUTF8StringEncoding]];
// Drain the autorelease pool
[sqlExportPool release];
// Release the result set
[streamingResult release];
}
free(useRawDataForColumnAtIndex);
free(useRawHexDataForColumnAtIndex);
if ([connection queryErrored]) {
[errors appendFormat:@"%@\n", [connection lastErrorMessage]];
if ([self sqlOutputIncludeErrors]) {
[[self exportOutputFile] writeData:[[NSString stringWithFormat:@"# Error: %@\n", [connection lastErrorMessage]]
dataUsingEncoding:NSUTF8StringEncoding]];
}
}
}
// Add triggers if the structure export was enabled
if (sqlOutputIncludeStructure) {
queryResult = [connection queryString:[NSString stringWithFormat:@"/*!50003 SHOW TRIGGERS WHERE `Table` = %@ */", [tableName tickQuotedString]]];
[queryResult setReturnDataAsStrings:YES];
if ([queryResult numberOfRows]) {
[metaString setString:@"\n"];
[metaString appendString:@"DELIMITER ;;\n"];
for (s = 0; s < [queryResult numberOfRows]; s++)
{
// Check for cancellation flag
if ([self isCancelled]) {
[errors release];
[sqlString release];
[pool release];
return;
}
NSDictionary *triggers = [[NSDictionary alloc] initWithDictionary:[queryResult getRowAsDictionary]];
// Definer is user@host but we need to escape it to `user`@`host`
NSArray *triggersDefiner = [[triggers objectForKey:@"Definer"] componentsSeparatedByString:@"@"];
[metaString appendFormat:@"/*!50003 SET SESSION SQL_MODE=\"%@\" */;;\n/*!50003 CREATE */ ", [triggers objectForKey:@"sql_mode"]];
[metaString appendFormat:@"/*!50017 DEFINER=%@@%@ */ /*!50003 TRIGGER %@ %@ %@ ON %@ FOR EACH ROW %@ */;;\n",
[NSArrayObjectAtIndex(triggersDefiner, 0) backtickQuotedString],
[NSArrayObjectAtIndex(triggersDefiner, 1) backtickQuotedString],
[[triggers objectForKey:@"Trigger"] backtickQuotedString],
[triggers objectForKey:@"Timing"],
[triggers objectForKey:@"Event"],
[[triggers objectForKey:@"Table"] backtickQuotedString],
[triggers objectForKey:@"Statement"]
];
[triggers release];
}
[metaString appendString:@"DELIMITER ;\n/*!50003 SET SESSION SQL_MODE=@OLD_SQL_MODE */;\n"];
[[self exportOutputFile] writeData:[metaString dataUsingEncoding:NSUTF8StringEncoding]];
}
if ([connection queryErrored]) {
[errors appendFormat:@"%@\n", [connection lastErrorMessage]];
if ([self sqlOutputIncludeErrors]) {
[[self exportOutputFile] writeData:[[NSString stringWithFormat:@"# Error: %@\n", [connection lastErrorMessage]] dataUsingEncoding:NSUTF8StringEncoding]];
}
}
}
// Add an additional separator between tables
[[self exportOutputFile] writeData:[@"\n\n" dataUsingEncoding:NSUTF8StringEncoding]];
}
// Process any deferred views, adding commands to delete the placeholder tables and add the actual views
for (tableName in viewSyntaxes)
{
// Check for cancellation flag
if ([self isCancelled]) {
[errors release];
[sqlString release];
[pool release];
return;
}
[metaString setString:@"\n\n"];
// Add the name of table
[metaString appendFormat:@"# Replace placeholder table for %@ with correct view syntax\n# ------------------------------------------------------------\n\n", tableName];
[metaString appendFormat:@"DROP TABLE %@;\n\n", [tableName backtickQuotedString]];
[metaString appendFormat:@"%@;\n", [viewSyntaxes objectForKey:tableName]];
[[self exportOutputFile] writeData:[metaString dataUsingEncoding:NSUTF8StringEncoding]];
}
// Export procedures and functions
for (NSString *procedureType in @[@"PROCEDURE", @"FUNCTION"])
{
// Check for cancellation flag
if ([self isCancelled]) {
[errors release];
[sqlString release];
[pool release];
return;
}
// Retrieve the array of selected procedures or functions, and skip export if not selected
NSMutableArray *items;
if ([procedureType isEqualToString:@"PROCEDURE"]) items = procs;
else items = funcs;
if ([items count] == 0) continue;
// Retrieve the definitions
queryResult = [connection queryString:[NSString stringWithFormat:@"/*!50003 SHOW %@ STATUS WHERE `Db` = %@ */", procedureType,
[[self sqlDatabaseName] tickQuotedString]]];
[queryResult setReturnDataAsStrings:YES];
if ([queryResult numberOfRows]) {
[metaString setString:@"\n"];
[metaString appendFormat:@"--\n-- Dumping routines (%@) for database %@\n--\nDELIMITER ;;\n\n", procedureType,
[[self sqlDatabaseName] tickQuotedString]];
// Loop through the definitions, exporting if enabled
for (s = 0; s < [queryResult numberOfRows]; s++)
{
// Check for cancellation flag
if ([self isCancelled]) {
[errors release];
[sqlString release];
[pool release];
return;
}
NSDictionary *proceduresList = [[NSDictionary alloc] initWithDictionary:[queryResult getRowAsDictionary]];
NSString *procedureName = [NSString stringWithFormat:@"%@", [proceduresList objectForKey:@"Name"]];
// Only proceed if the item is in the list of items
BOOL itemFound = NO;
for (NSArray *item in items)
{
// Check for cancellation flag
if ([self isCancelled]) {
[proceduresList release];
[errors release];
[sqlString release];
[pool release];
return;
}
if ([NSArrayObjectAtIndex(item, 0) isEqualToString:procedureName]) {
itemFound = YES;
sqlOutputIncludeStructure = [NSArrayObjectAtIndex(item, 1) boolValue];
sqlOutputIncludeContent = [NSArrayObjectAtIndex(item, 2) boolValue];
sqlOutputIncludeDropSyntax = [NSArrayObjectAtIndex(item, 3) boolValue];
break;
}
}
if (!itemFound) {
[proceduresList release];
continue;
}
if (sqlOutputIncludeStructure || sqlOutputIncludeDropSyntax)
[metaString appendFormat:@"# Dump of %@ %@\n# ------------------------------------------------------------\n\n", procedureType, procedureName];
// Add the 'DROP' command if required
if (sqlOutputIncludeDropSyntax) {
[metaString appendFormat:@"/*!50003 DROP %@ IF EXISTS %@ */;;\n", procedureType,
[procedureName backtickQuotedString]];
}
// Only continue if the 'CREATE SYNTAX' is required
if (!sqlOutputIncludeStructure) {
[proceduresList release];
continue;
}
// Definer is user@host but we need to escape it to `user`@`host`
NSArray *procedureDefiner = [[proceduresList objectForKey:@"Definer"] componentsSeparatedByString:@"@"];
NSString *escapedDefiner = [NSString stringWithFormat:@"%@@%@",
[NSArrayObjectAtIndex(procedureDefiner, 0) backtickQuotedString],
[NSArrayObjectAtIndex(procedureDefiner, 1) backtickQuotedString]
];
SPMySQLResult *createProcedureResult = [connection queryString:[NSString stringWithFormat:@"/*!50003 SHOW CREATE %@ %@ */", procedureType,
[procedureName backtickQuotedString]]];
[createProcedureResult setReturnDataAsStrings:YES];
if ([connection queryErrored]) {
[errors appendFormat:@"%@\n", [connection lastErrorMessage]];
if ([self sqlOutputIncludeErrors]) {
[[self exportOutputFile] writeData:[[NSString stringWithFormat:@"# Error: %@\n", [connection lastErrorMessage]] dataUsingEncoding:NSUTF8StringEncoding]];
}
[proceduresList release];
continue;
}
NSDictionary *procedureInfo = [[NSDictionary alloc] initWithDictionary:[createProcedureResult getRowAsDictionary]];
[metaString appendFormat:@"/*!50003 SET SESSION SQL_MODE=\"%@\"*/;;\n", [procedureInfo objectForKey:@"sql_mode"]];
NSString *createProcedure = [procedureInfo objectForKey:[NSString stringWithFormat:@"Create %@", [procedureType capitalizedString]]];
// A NULL result indicates a permission problem
if ([createProcedure isNSNull]) {
NSString *errorString = [NSString stringWithFormat:NSLocalizedString(@"Could not export the %@ '%@' because of a permissions error.\n", @"Procedure/function export permission error"), procedureType, procedureName];
[errors appendString:errorString];
if ([self sqlOutputIncludeErrors]) {
[[self exportOutputFile] writeData:[[NSString stringWithFormat:@"# Error: %@\n", errorString] dataUsingEncoding:NSUTF8StringEncoding]];
}
[proceduresList release];
[procedureInfo release];
continue;
}
NSRange procedureRange = [createProcedure rangeOfString:procedureType options:NSCaseInsensitiveSearch];
NSString *procedureBody = [createProcedure substringFromIndex:procedureRange.location];
// /*!50003 CREATE*/ /*!50020 DEFINER=`sequelpro`@`%`*/ /*!50003 PROCEDURE `p`()
// BEGIN
// /* This procedure does nothing */
// END */;;
//
// Build the CREATE PROCEDURE string to include MySQL Version limiters
[metaString appendFormat:@"/*!50003 CREATE*/ /*!50020 DEFINER=%@*/ /*!50003 %@ */;;\n\n/*!50003 SET SESSION SQL_MODE=@OLD_SQL_MODE */;;\n", escapedDefiner, procedureBody];
[procedureInfo release];
[proceduresList release];
}
[metaString appendString:@"DELIMITER ;\n"];
[[self exportOutputFile] writeData:[metaString dataUsingEncoding:NSUTF8StringEncoding]];
}
if ([connection queryErrored]) {
[errors appendFormat:@"%@\n", [connection lastErrorMessage]];
if ([self sqlOutputIncludeErrors]) {
[[self exportOutputFile] writeData:[[NSString stringWithFormat:@"# Error: %@\n", [connection lastErrorMessage]] dataUsingEncoding:NSUTF8StringEncoding]];
}
}
}
// Restore unique checks, foreign key checks, and other settings saved at the start
[metaString setString:@"\n"];
[metaString appendString:@"/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;\n"];
[metaString appendString:@"/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;\n"];
[metaString appendString:@"/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;\n"];
// Restore the client encoding to the original encoding before import
[metaString appendString:@"/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;\n"];
[metaString appendString:@"/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;\n"];
[metaString appendString:@"/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;\n"];
// Write footer-type information to the file
[[self exportOutputFile] writeData:[metaString dataUsingEncoding:NSUTF8StringEncoding]];
// Set export errors
[self setSqlExportErrors:errors];
[errors release];
[sqlString release];
// Close the file
[[self exportOutputFile] close];
// Mark the process as not running
[self setExportProcessIsRunning:NO];
// Inform the delegate that the export process is complete
[delegate performSelectorOnMainThread:@selector(sqlExportProcessComplete:) withObject:self waitUntilDone:NO];
[pool release];
}
/**
* Returns whether or not any export errors occurred by examing the length of the errors string.
*
* @return A BOOL indicating the occurrence of errors
*/
- (BOOL)didExportErrorsOccur
{
return [[self sqlExportErrors] length];
}
/**
* Retrieve information for a view and use that to construct a CREATE TABLE string for an equivalent basic
* table. Allows the construction of placeholder tables to resolve view interdependencies within dumps.
*
* @param viewName The name of the view for which the placeholder is to be created for.
*
* @return The CREATE TABLE placeholder syntax
*/
- (NSString *)_createViewPlaceholderSyntaxForView:(NSString *)viewName
{
NSUInteger i, j;
NSMutableString *placeholderSyntax;
// Get structured information for the view via the SPTableData parsers
NSDictionary *viewInformation = [sqlTableDataInstance informationForView:viewName];
if (!viewInformation) return nil;
NSArray *viewColumns = [viewInformation objectForKey:@"columns"];
// Set up the start of the placeholder string and initialise an empty field string
placeholderSyntax = [[NSMutableString alloc] initWithFormat:@"CREATE TABLE %@ (\n", [viewName backtickQuotedString]];
NSMutableString *fieldString = [[NSMutableString alloc] init];
// Loop through the columns, creating an appropriate column definition for each and appending it to the syntax string
for (i = 0; i < [viewColumns count]; i++)
{
NSDictionary *column = NSArrayObjectAtIndex(viewColumns, i);
[fieldString setString:[[column objectForKey:@"name"] backtickQuotedString]];
// Add the type and length information as appropriate
if ([column objectForKey:@"length"]) {
[fieldString appendFormat:@" %@(%@)", [column objectForKey:@"type"], [column objectForKey:@"length"]];
}
else if ([column objectForKey:@"values"]) {
[fieldString appendFormat:@" %@(", [column objectForKey:@"type"]];
for (j = 0; j < [[column objectForKey:@"values"] count]; j++)
{
[fieldString appendString:[connection escapeAndQuoteString:NSArrayObjectAtIndex([column objectForKey:@"values"], j)]];
if ((j + 1) != [[column objectForKey:@"values"] count]) {
[fieldString appendString:@","];
}
}
[fieldString appendString:@")"];
}
else {
[fieldString appendFormat:@" %@", [column objectForKey:@"type"]];
}
// Field specification details
if ([[column objectForKey:@"unsigned"] integerValue] == 1) [fieldString appendString:@" UNSIGNED"];
if ([[column objectForKey:@"zerofill"] integerValue] == 1) [fieldString appendString:@" ZEROFILL"];
if ([[column objectForKey:@"binary"] integerValue] == 1) [fieldString appendString:@" BINARY"];
if ([[column objectForKey:@"null"] integerValue] == 0) {
[fieldString appendString:@" NOT NULL"];
} else {
[fieldString appendString:@" NULL"];
}
// Provide the field default if appropriate
if ([column objectForKey:@"default"]) {
// Some MySQL server versions show a default of NULL for NOT NULL columns - don't export those.
// Check against the NSNull singleton instance for speed.
if ([column objectForKey:@"default"] == [NSNull null]) {
if ([[column objectForKey:@"null"] integerValue]) {
[fieldString appendString:@" DEFAULT NULL"];
}
}
else if (([[column objectForKey:@"type"] isEqualToString:@"TIMESTAMP"] || [[column objectForKey:@"type"] isEqualToString:@"DATETIME"]) && [column objectForKey:@"default"] != [NSNull null] && [[[column objectForKey:@"default"] uppercaseString] isEqualToString:@"CURRENT_TIMESTAMP"]) {
[fieldString appendString:@" DEFAULT CURRENT_TIMESTAMP"];
}
else {
[fieldString appendFormat:@" DEFAULT %@", [connection escapeAndQuoteString:[column objectForKey:@"default"]]];
}
}
// Extras aren't required for the temp table
// Add the field string to the syntax string
[placeholderSyntax appendFormat:@" %@%@\n", fieldString, (i == [viewColumns count] - 1) ? @"" : @","];
}
// Append the remainder of the table string
[placeholderSyntax appendString:@") ENGINE=MyISAM"];
// Clean up and return
[fieldString release];
return [placeholderSyntax autorelease];
}
#pragma mark -
- (void)dealloc
{
SPClear(sqlExportTables);
SPClear(sqlDatabaseHost);
SPClear(sqlDatabaseName);
SPClear(sqlExportCurrentTable);
SPClear(sqlDatabaseVersion);
SPClear(sqlExportErrors);
[super dealloc];
}
@end