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  1. > by francis
  2.  
  3. ## 工作周报
  4.  
  5. ```shell
  6. git log --pretty=format:'%ci %s' --since='7 day'
  7. ```
  8.  
  9. ## fix broken ubuntu or unity
  10.  
  11. during use ubuntu, you must done some wrong thing, and you do not konw how to back, or can't understander what it's mean ...
  12.  
  13. the best method is restore or reset, ubuntu-deskdop or unity ...
  14.  
  15. three tips:
  16.  
  17. ```shell
  18. sudo spt-get remove --purge ubuntu-desktop;sudo apt-get install ubuntu-desktop;sudo reboot;
  19. sudo apt-get remove --purge unity;sudo apt-get install unity;reboot;
  20. # if you unity have some incorrent setting, you can
  21. sudo apt-get install myunity
  22. #then type
  23. myunity
  24. ```
  25. <pre>
  26. (Permit.where "name like '%category_base%'").collect{ |p| p.destroy}
  27.  
  28. mysql -u root -p # 没有密码,直接回车
  29. UPDATE mysql.user SET password=PASSWORD('root') WHERE user='root';
  30. flush privileges; # 更新密码
  31. service mysqld restart # 重启
  32.  
  33. # 建立名为test的数据库
  34. create database askjane_development;
  35. create database askjane_test;
  36. create database askjane_production;
  37. create database auth;
  38. create database recommendation;
  39.  
  40. mysqldump -uroot -proot askjane_development category_bases > category_bases.sql
  41.  
  42. rails generate scaffold_controller recommend/recommend_users position:string name:string body:text created_at:datetime updated_at:datetime
  43.  
  44. rails generate scaffold_controller profiles user_id:integer real_name:string nickname:string level_id:integer gender:boolean face:file birthday:date degree:string city:string phone:phone child_birthday:date baby_gender:integer profession:string expert_field:text hobby:string focus_tags_on:text pregnancy_status:integer agerange:integer pregnancy_timeline:integer label:string weibo:string
  45.  
  46. Knowledge.tag_counts_on(:categories).each do |c|
  47. puts "#{c.name} #{c.count}"
  48. end
  49.  
  50. #sudo apt-get install magick libmagickcore-dev
  51. #sudo apt-get install libmagickwand-dev
  52. #gem install rmagick -v '2.13.1'
  53. #gem 'rmagick', '~> 2.13.1'
  54. sudo yum install ImageMagick-devel.x86_64 ImageMagic
  55. </pre>
  56.  
  57. ```ruby
  58. class Hash
  59. module ClassMethods
  60. def self.replace_key(old_key, new_key)
  61. self[new_key] = self[old_key]
  62. self.delete(new_key)
  63. end
  64. end
  65. end
  66. h.keys.each do |key|
  67. h[new_keys[key]] = h[key] # add entry for new key
  68. k.delete(key) # remove old key
  69. end
  70. ```
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