aboutsummaryrefslogtreecommitdiffstats
path: root/railties/lib/tasks/databases.rake
blob: 551fc8c59080aab440541b555e27f7ec44cd0f3e (plain) (blame)
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
namespace :db do
  desc "Migrate the database through scripts in db/migrate. Target specific version with VERSION=x"
  task :migrate => :environment do
    ActiveRecord::Migrator.migrate("db/migrate/", ENV["VERSION"] ? ENV["VERSION"].to_i : nil)
    Rake::Task["db:schema:dump"].invoke if ActiveRecord::Base.schema_format == :ruby
  end

  namespace :fixtures do
    desc "Load fixtures into the current environment's database.  Load specific fixtures using FIXTURES=x,y"
    task :load => :environment do
      require 'active_record/fixtures'
      ActiveRecord::Base.establish_connection(RAILS_ENV.to_sym)
      (ENV['FIXTURES'] ? ENV['FIXTURES'].split(/,/) : Dir.glob(File.join(RAILS_ROOT, 'test', 'fixtures', '*.{yml,csv}'))).each do |fixture_file|
        Fixtures.create_fixtures('test/fixtures', File.basename(fixture_file, '.*'))
      end
    end
  end

  namespace :schema do
    desc "Create a db/schema.rb file that can be portably used against any DB supported by AR"
    task :dump => :environment do
      require 'active_record/schema_dumper'
      File.open(ENV['SCHEMA'] || "db/schema.rb", "w") do |file|
        ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, file)
      end
    end

    desc "Load a schema.rb file into the database"
    task :load => :environment do
      file = ENV['SCHEMA'] || "db/schema.rb"
      load(file)
    end
  end

  namespace :structure do
    desc "Dump the database structure to a SQL file"
    task :dump => :environment do
      abcs = ActiveRecord::Base.configurations
      case abcs[RAILS_ENV]["adapter"]
        when "mysql", "oci", "oracle"
          ActiveRecord::Base.establish_connection(abcs[RAILS_ENV])
          File.open("db/#{RAILS_ENV}_structure.sql", "w+") { |f| f << ActiveRecord::Base.connection.structure_dump }
        when "postgresql"
          ENV['PGHOST']     = abcs[RAILS_ENV]["host"] if abcs[RAILS_ENV]["host"]
          ENV['PGPORT']     = abcs[RAILS_ENV]["port"].to_s if abcs[RAILS_ENV]["port"]
          ENV['PGPASSWORD'] = abcs[RAILS_ENV]["password"].to_s if abcs[RAILS_ENV]["password"]
          search_path = abcs[RAILS_ENV]["schema_search_path"]
          search_path = "--schema=#{search_path}" if search_path
          `pg_dump -i -U "#{abcs[RAILS_ENV]["username"]}" -s -x -O -f db/#{RAILS_ENV}_structure.sql #{search_path} #{abcs[RAILS_ENV]["database"]}`
          raise "Error dumping database" if $?.exitstatus == 1
        when "sqlite", "sqlite3"
          dbfile = abcs[RAILS_ENV]["database"] || abcs[RAILS_ENV]["dbfile"]
          `#{abcs[RAILS_ENV]["adapter"]} #{dbfile} .schema > db/#{RAILS_ENV}_structure.sql`
        when "sqlserver"
          `scptxfr /s #{abcs[RAILS_ENV]["host"]} /d #{abcs[RAILS_ENV]["database"]} /I /f db\\#{RAILS_ENV}_structure.sql /q /A /r`
          `scptxfr /s #{abcs[RAILS_ENV]["host"]} /d #{abcs[RAILS_ENV]["database"]} /I /F db\ /q /A /r`
        else
          raise "Task not supported by '#{abcs["test"]["adapter"]}'"
      end

      if ActiveRecord::Base.connection.supports_migrations?
        File.open("db/#{RAILS_ENV}_structure.sql", "a") { |f| f << ActiveRecord::Base.connection.dump_schema_information }
      end
    end
  end

  namespace :test do
    desc "Recreate the test database from the current environment's database schema"
    task :clone => %w(db:schema:dump db:test:purge) do
      ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations['test'])
      ActiveRecord::Schema.verbose = false
      Rake::Task["db:schema:load"].invoke
    end


    desc "Recreate the test databases from the development structure"
    task :clone_structure => [ "db:structure:dump", "db:test:purge" ] do
      abcs = ActiveRecord::Base.configurations
      case abcs["test"]["adapter"]
        when "mysql"
          ActiveRecord::Base.establish_connection(:test)
          ActiveRecord::Base.connection.execute('SET foreign_key_checks = 0')
          IO.readlines("db/#{RAILS_ENV}_structure.sql").join.split("\n\n").each do |table|
            ActiveRecord::Base.connection.execute(table)
          end
        when "postgresql"
          ENV['PGHOST']     = abcs["test"]["host"] if abcs["test"]["host"]
          ENV['PGPORT']     = abcs["test"]["port"].to_s if abcs["test"]["port"]
          ENV['PGPASSWORD'] = abcs["test"]["password"].to_s if abcs["test"]["password"]
          `psql -U "#{abcs["test"]["username"]}" -f db/#{RAILS_ENV}_structure.sql #{abcs["test"]["database"]}`
        when "sqlite", "sqlite3"
          dbfile = abcs["test"]["database"] || abcs["test"]["dbfile"]
          `#{abcs["test"]["adapter"]} #{dbfile} < db/#{RAILS_ENV}_structure.sql`
        when "sqlserver"
          `osql -E -S #{abcs["test"]["host"]} -d #{abcs["test"]["database"]} -i db\\#{RAILS_ENV}_structure.sql`
        when "oci", "oracle"
          ActiveRecord::Base.establish_connection(:test)
          IO.readlines("db/#{RAILS_ENV}_structure.sql").join.split(";\n\n").each do |ddl|
            ActiveRecord::Base.connection.execute(ddl)
          end
        else
          raise "Task not supported by '#{abcs["test"]["adapter"]}'"
      end
    end

    desc "Empty the test database"
    task :purge => :environment do
      abcs = ActiveRecord::Base.configurations
      case abcs["test"]["adapter"]
        when "mysql"
          ActiveRecord::Base.establish_connection(:test)
          ActiveRecord::Base.connection.recreate_database(abcs["test"]["database"])
        when "postgresql"
          ENV['PGHOST']     = abcs["test"]["host"] if abcs["test"]["host"]
          ENV['PGPORT']     = abcs["test"]["port"].to_s if abcs["test"]["port"]
          ENV['PGPASSWORD'] = abcs["test"]["password"].to_s if abcs["test"]["password"]
          enc_option = "-E #{abcs["test"]["encoding"]}" if abcs["test"]["encoding"]
          `dropdb -U "#{abcs["test"]["username"]}" #{abcs["test"]["database"]}`
          `createdb #{enc_option} -U "#{abcs["test"]["username"]}" #{abcs["test"]["database"]}`
        when "sqlite","sqlite3"
          dbfile = abcs["test"]["database"] || abcs["test"]["dbfile"]
          File.delete(dbfile) if File.exist?(dbfile)
        when "sqlserver"
          dropfkscript = "#{abcs["test"]["host"]}.#{abcs["test"]["database"]}.DP1".gsub(/\\/,'-')
          `osql -E -S #{abcs["test"]["host"]} -d #{abcs["test"]["database"]} -i db\\#{dropfkscript}`
          `osql -E -S #{abcs["test"]["host"]} -d #{abcs["test"]["database"]} -i db\\#{RAILS_ENV}_structure.sql`
        when "oci", "oracle"
          ActiveRecord::Base.establish_connection(:test)
          ActiveRecord::Base.connection.structure_drop.split(";\n\n").each do |ddl|
            ActiveRecord::Base.connection.execute(ddl)
          end
        else
          raise "Task not supported by '#{abcs["test"]["adapter"]}'"
      end
    end

    desc 'Prepare the test database and load the schema'
    task :prepare => :environment do
      if defined?(ActiveRecord::Base) && !ActiveRecord::Base.configurations.blank?
        Rake::Task[{ :sql  => "db:test:clone_structure", :ruby => "db:test:clone" }[ActiveRecord::Base.schema_format]].invoke
      end
    end
  end

  namespace :sessions do
    desc "Creates a sessions table for use with CGI::Session::ActiveRecordStore"
    task :create => :environment do
      raise "Task unavailable to this database (no migration support)" unless ActiveRecord::Base.connection.supports_migrations?
      require 'rails_generator'
      require 'rails_generator/scripts/generate'
      Rails::Generator::Scripts::Generate.new.run(["session_migration", ENV["MIGRATION"] || "AddSessions"])
    end

    desc "Clear the sessions table"
    task :clear => :environment do
      session_table = 'session'
      session_table = Inflector.pluralize(session_table) if ActiveRecord::Base.pluralize_table_names
      ActiveRecord::Base.connection.execute "DELETE FROM #{session_table}"
    end
  end
end

def session_table_name
  ActiveRecord::Base.pluralize_table_names ? :sessions : :session
end