Created
August 11, 2010 11:47
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| namespace :db do | |
| namespace :fixtures do | |
| desc ' Creates YAML test fixtures from data in an existing database. | |
| Parameters: | |
| RAILS_ENV - use to select databese. Default is to development database (eg. RAILS_ENV=test). | |
| TABLES - use to select tables to extract. By default all tables are extractd. (eg. TABLES=users,orders). | |
| DIR - use to change default (/test/fixtures) write directory (eg. DIR=./db/data).' | |
| task :extract => :environment do | |
| dir = ENV['DIR'] || "#{RAILS_ROOT}/test/fixtures" | |
| sql = "SELECT * FROM %s ORDER BY id ASC" | |
| ActiveRecord::Base.establish_connection | |
| if ENV['TABLES'] | |
| interesting_tables = ENV['TABLES'].split(',') | |
| else | |
| skip_tables = ['schema_info', 'schema_migrations', 'sessions', 'logged_exceptions', | |
| 'plugin_schema_info', 'order_types_orders'] | |
| interesting_tables = (ActiveRecord::Base.connection.tables - skip_tables) | |
| end | |
| interesting_tables.each do |table_name| | |
| i = "000" | |
| File.open("#{dir}/#{table_name}.yml", 'w' ) do |file| | |
| data = ActiveRecord::Base.connection.select_all(sql % table_name) | |
| puts "Writing #{table_name}.yml..." | |
| file.write data.inject({}) { |hash, record| | |
| hash["#{table_name}_#{i.succ!}"] = record | |
| hash | |
| }.to_yaml | |
| end | |
| end | |
| end | |
| desc ' Loads data from selected fixtures to a database. | |
| Parameters: | |
| RAILS_ENV - use to select databese. Default is to development database (eg. RAILS_ENV=test). | |
| FIXTURES - use to select fixtures to load in (e.g. FIXTURES=users,orders). | |
| DIR - use to change default (/test/fixtures) write directory (eg. DIR=./db/data).' | |
| task :load_in => [:environment] do | |
| interesting_tables = ENV['FIXTURES'].split(',') | |
| dir = ENV['DIR'] || "#{RAILS_ROOT}/test/fixtures" | |
| FileUtils.mkdir_p(dir) | |
| FileUtils.chdir(dir) | |
| interesting_tables.each do |table_name| | |
| ActiveRecord::Base.transaction do | |
| puts "Clearing #{table_name}..." | |
| ActiveRecord::Base.connection.execute "DELETE FROM #{table_name}", "Table Clearance" | |
| puts "Loading #{table_name}..." | |
| YAML.load_file("#{table_name}.yml").each do |fixture| | |
| fixture = fixture[1] | |
| ActiveRecord::Base.connection.execute "INSERT INTO #{table_name} (#{fixture.keys.join(",")}) VALUES (#{fixture.values.collect { |value| ActiveRecord::Base.connection.quote(value) }.join(",")})", 'Fixture Insert' | |
| end | |
| end | |
| end | |
| end | |
| end | |
| end |
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