diff options
| -rw-r--r-- | activerecord/test/cases/adapters/postgresql/uuid_test.rb | 15 | ||||
| -rw-r--r-- | guides/rails_guides/levenshtein.rb | 50 | ||||
| -rw-r--r-- | guides/source/getting_started.md | 2 | ||||
| -rw-r--r-- | guides/source/initialization.md | 6 |
4 files changed, 36 insertions, 37 deletions
diff --git a/activerecord/test/cases/adapters/postgresql/uuid_test.rb b/activerecord/test/cases/adapters/postgresql/uuid_test.rb index 40ed0f64a4..8b27570a36 100644 --- a/activerecord/test/cases/adapters/postgresql/uuid_test.rb +++ b/activerecord/test/cases/adapters/postgresql/uuid_test.rb @@ -9,15 +9,6 @@ module PostgresqlUUIDHelper @connection ||= ActiveRecord::Base.connection end - def enable_uuid_ossp - unless connection.extension_enabled?('uuid-ossp') - connection.enable_extension 'uuid-ossp' - connection.commit_db_transaction - end - - connection.reconnect! - end - def drop_table(name) connection.execute "drop table if exists #{name}" end @@ -91,7 +82,7 @@ class PostgresqlUUIDGenerationTest < ActiveRecord::TestCase end setup do - enable_uuid_ossp + enable_uuid_ossp!(connection) connection.create_table('pg_uuids', id: :uuid, default: 'uuid_generate_v1()') do |t| t.string 'name' @@ -139,7 +130,7 @@ class PostgresqlUUIDTestNilDefault < ActiveRecord::TestCase include PostgresqlUUIDHelper setup do - enable_uuid_ossp + enable_uuid_ossp!(connection) connection.create_table('pg_uuids', id: false) do |t| t.primary_key :id, :uuid, default: nil @@ -176,7 +167,7 @@ class PostgresqlUUIDTestInverseOf < ActiveRecord::TestCase end setup do - enable_uuid_ossp + enable_uuid_ossp!(connection) connection.transaction do connection.create_table('pg_uuid_posts', id: :uuid) do |t| diff --git a/guides/rails_guides/levenshtein.rb b/guides/rails_guides/levenshtein.rb index 489aa3ea7a..8a908a4339 100644 --- a/guides/rails_guides/levenshtein.rb +++ b/guides/rails_guides/levenshtein.rb @@ -1,31 +1,39 @@ module RailsGuides module Levenshtein - # Based on the pseudocode in http://en.wikipedia.org/wiki/Levenshtein_distance - def self.distance(s1, s2) - s = s1.unpack('U*') - t = s2.unpack('U*') - m = s.length - n = t.length + # This code is based directly on the Text gem implementation + # Returns a value representing the "cost" of transforming str1 into str2 + def self.distance str1, str2 + s = str1 + t = str2 + n = s.length + m = t.length + max = n/2 - # matrix initialization - d = [] - 0.upto(m) { |i| d << [i] } - 0.upto(n) { |j| d[0][j] = j } + return m if (0 == n) + return n if (0 == m) + return n if (n - m).abs > max - # distance computation - 1.upto(m) do |i| - 1.upto(n) do |j| - cost = s[i] == t[j] ? 0 : 1 - d[i][j] = [ - d[i-1][j] + 1, # deletion - d[i][j-1] + 1, # insertion - d[i-1][j-1] + cost, # substitution - ].min + d = (0..m).to_a + x = nil + + str1.each_char.each_with_index do |char1,i| + e = i+1 + + str2.each_char.each_with_index do |char2,j| + cost = (char1 == char2) ? 0 : 1 + x = [ + d[j+1] + 1, # insertion + e + 1, # deletion + d[j] + cost # substitution + ].min + d[j] = e + e = x end + + d[m] = x end - # all done - return d[m][n] + return x end end end diff --git a/guides/source/getting_started.md b/guides/source/getting_started.md index 4a0600d02a..4fe181bb9d 100644 --- a/guides/source/getting_started.md +++ b/guides/source/getting_started.md @@ -1007,7 +1007,7 @@ These changes will ensure that all articles have a title that is at least five characters long. Rails can validate a variety of conditions in a model, including the presence or uniqueness of columns, their format, and the existence of associated objects. Validations are covered in detail in [Active -Record Validations](active_record_validations.html) +Record Validations](active_record_validations.html). With the validation now in place, when you call `@article.save` on an invalid article, it will return `false`. If you open diff --git a/guides/source/initialization.md b/guides/source/initialization.md index 00b2761716..02059151b6 100644 --- a/guides/source/initialization.md +++ b/guides/source/initialization.md @@ -301,7 +301,7 @@ def default_options end ``` -There is no `REQUEST_METHOD` key in `ENV` so we can skip over that line. The next line merges in the options from `opt_parser` which is defined plainly in `Rack::Server` +There is no `REQUEST_METHOD` key in `ENV` so we can skip over that line. The next line merges in the options from `opt_parser` which is defined plainly in `Rack::Server`: ```ruby def opt_parser @@ -559,7 +559,7 @@ initialized. When `config/application.rb` has finished loading Rails and defined the application namespace, we go back to `config/environment.rb`, where the application is initialized. For example, if the application was called `Blog`, here we would find `Rails.application.initialize!`, which is -defined in `rails/application.rb` +defined in `rails/application.rb`. ### `railties/lib/rails/application.rb` @@ -575,7 +575,7 @@ end ``` As you can see, you can only initialize an app once. The initializers are run through -the `run_initializers` method which is defined in `railties/lib/rails/initializable.rb` +the `run_initializers` method which is defined in `railties/lib/rails/initializable.rb`: ```ruby def run_initializers(group=:default, *args) |