Database version control - pf congres version
- 1. Database Version Control Without Pain Harrie Verveer PFCongres - April 17th 2010
- 2. Database Version Control What’s the problem? 2
- 3. Here used to be an image of an airplane that I removed because of the license the image was published under http://www.sxc.hu/photo/754535
- 4. Here used to be an image of an airplane that I removed because of the license the image was published under http://www.sxc.hu/photo/1207911
- 5. http://en.wikipedia.org/wiki/File:STS120LaunchHiRes.jpg Here used to be an image of the space shuttle that I removed because of the license the image was published under
- 6. http://www.sxc.hu/photo/1255121 Here used to be an image of a bike that I removed because of the license the image was published under
- 7. Why Database Version Control 7
- 8. Why Database Version Control Database Version Control is left behind 8
- 9. Simple Patching Strategy The basic idea 9
- 10. Simple patching strategy Patch files 10
- 11. Simple patching strategy 11
- 12. Simple patching strategy Mostly structural changes 12
- 13. Simple patching strategy Chronological filenames 13
- 14. Simple patching strategy Remember last executed patch 14
- 15. Simple patching strategy Development Write code Write DB patches Apply patches to own DB Apply patches Commit Update 15
- 17. Fixing patches patch-002.sql 17
- 18. Fixing patches patch-002.sql 17
- 19. Fixing patches patch-002.sql 17
- 20. Fixing patches patch-003.sql 18
- 21. Fixing patches patch-003.sql Never modify a patch file once it’s under version control 18
- 24. Here used to be an image of a one-way sign that I removed because of the license the image was published under http://www.freefoto.com/preview/41-07-7
- 25. Process Copy production to test environment Apply patches Run tests Backup live database Update production 22
- 26. Bonus points Install.sql 23
- 27. Bonus points Initial dummy content 24
- 28. Here used to be an image of a guy in a rowing boat that I removed because of the license the image was published under http://www.sxc.hu/photo/643214
- 29. Here used to be an image of a sunken boat that I removed because of the license the image was published under http://www.sxc.hu/photo/946855
- 30. Automating the process Faster & Safer 27
- 31. Typical patch script Run the patches 28
- 32. Typical patch script Keep track of last executed patch 29
- 33. Typical patch script 30
- 34. Typical patch script 31
- 35. Typical patch script 32
- 37. Branches Merge problems 34
- 38. Branches Trunk patch-001.sql patch-002.sql patch-003.sql 35
- 39. Branches Trunk patch-001.sql patch-002.sql patch-003.sql Branch A create branch patch-004.sql patch-004.sql patch-005.sql patch-005.sql 36
- 40. Branches Trunk patch-001.sql patch-002.sql patch-003.sql Branch A create branch patch-004.sql patch-004.sql patch-005.sql patch-005.sql Merge 37
- 41. Branches Trunk patch-001.sql patch-002.sql patch-003.sql Branch A create branch patch-004.sql patch-006.sql patch-004.sql patch-005.sql patch-007.sql patch-005.sql Merge 37
- 42. Branches Trunk patch-001.sql Branch A create branch patch-002.sql patch-002.sql patch-003.sql Branch B create branch patch-003.sql Merge patch-004.sql patch-004.sql patch-004.sql patch-005.sql patch-005.sql Merge patch-005.sql Merge Merge 38
- 43. Separate sequence db/patches/trunk/ db/patches/branchA/ patch-001.sql patch-001.sql patch-002.sql patch-002.sql patch-003.sql 39
- 44. Separate sequence db/patches/trunk/ db/patches/branchA/ patch-001.sql patch-001.sql patch-002.sql patch-002.sql patch-003.sql Trunk version 3 BranchA version 2 39
- 45. Patchfile naming Filenames based on time 40
- 46. Patch log At this point our patch number tracking doesn’t work anymore!!! patch_20100322_2158.sql patch_20100323_0839.sql patch_20100327_1025.sql 41
- 47. Patch log At this point our patch number tracking doesn’t work anymore!!! patch_20100322_2158.sql patch_20100323_0839.sql patch_20100327_1025.sql Last executed: patch_20100327_1025 41
- 48. Patch log At this point our patch number tracking doesn’t work anymore!!! patch_20100322_2158.sql patch_20100322_2253.sql patch_20100323_0839.sql patch_20100325_1528.sql patch_20100327_1025.sql patch_20100328_1230.sql Last executed: patch_20100327_1025 41
- 49. Patch log At this point our patch number tracking doesn’t work anymore!!! patch_20100322_2158.sql patch_20100322_2253.sql patch_20100323_0839.sql patch_20100325_1528.sql patch_20100327_1025.sql patch_20100328_1230.sql Last executed: patch_20100327_1025 41
- 50. Patch log At this point our patch number tracking doesn’t work anymore!!! patch_20100322_2158.sql patch_20100322_2253.sql patch_20100323_0839.sql patch_20100325_1528.sql patch_20100327_1025.sql patch_20100328_1230.sql patch_20100322_2158.sql patch_20100322_2253.sql Last executed: patch_20100323_0839.sql patch_20100327_1025 patch_20100325_1528.sql patch_20100327_1025.sql patch_20100328_1230.sql 41
- 51. Patch log At this point our patch number tracking doesn’t work anymore!!! patch_20100322_2158.sql patch_20100322_2253.sql patch_20100323_0839.sql patch_20100325_1528.sql patch_20100327_1025.sql patch_20100328_1230.sql patch_20100322_2158.sql patch_20100322_2253.sql Last executed: patch_20100323_0839.sql patch_20100327_1025 patch_20100325_1528.sql patch_20100327_1025.sql patch_20100328_1230.sql 41
- 52. Patch log 42
- 53. Branches False sense of security 43
- 54. Phing Avoiding the NIH syndrome 44
- 56. Phing 46
- 57. 47
- 58. DB Deploy 48
- 59. DB Deploy 49
- 60. DB Deploy 49
- 61. DB Deploy changelog table: 50
- 62. DB Deploy changelog table: 50
- 63. Akrabat DB Schema Manager Zend Framework specific solution 51
- 64. Akrabat DB Schema Manager Zend Framework Proposed by Rob Allen in 2006 Recently implemented Might be in ZF in the near future http://github.com/akrabat/Akrabat 52
- 67. Running the patch 55
- 68. Running the patch 55
- 69. Running the patch 56
- 70. Running the patch 57
- 71. Akrabat DB Schema Manager Easy to use if you know ZF PHP instead of SQL-only Easy to ‘undo’ patches Branch merging problem Run from your deploy script 58
- 74. Capistrano cd /dir/where/my/app/is svn update php updatedb.php 61
- 75. Capistrano cd /dir/where/my/app/is svn update php updatedb.php 62
- 76. Capistrano & the database 63
- 77. Capistrano Automate deployment No coding needed Extending possible Useful tool for PHP developers Replace railsy voodoo with PHPish 1337ness 64
- 78. Summary 65
- 79. Summary Patchfiles • Automating • Branch merging Phing + DB Deploy http://phing.info http://dbdeploy.com Akrabat DB Schema Manager http://akrabat.com http://github.com/akrabat/Akrabat Capistrano http://capify.org 66
- 80. Questions ? 67
- 81. Contact me Harrie Verveer Software Engineer at Ibuildings E-mail: harrie@ibuildings.nl Skype: harrie-ibuildings Twitter: @harrieverveer http://joind.in/1499 68
- 82. Dutch PHP Conference june 10 - 12 RAI Amsterdam http://phpconference.nl 69