diff options
4 files changed, 79 insertions, 3 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 923d780b90..35f760d63a 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,3 +1,14 @@ +* PostgreSQL: `:collation` support for string and text columns. + + Example: + + create_table :foos do |t| + t.string :string_en, collation: 'en_US.UTF-8' + t.text :text_ja, collation: 'ja_JP.UTF-8' + end + + *Ryuta Kamizono* + * Make `unscope` aware of "less than" and "greater than" conditions. *TAKAHASHI Kazuaki* diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb index bb944c7cfd..662c6b4d38 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -8,6 +8,13 @@ module ActiveRecord o.sql_type = type_to_sql(o.type, o.limit, o.precision, o.scale, o.array) super end + + def add_column_options!(sql, options) + if options[:collation] + sql << " COLLATE \"#{options[:collation]}\"" + end + super + end end module SchemaStatements @@ -159,13 +166,13 @@ module ActiveRecord # Returns the list of all column definitions for a table. def columns(table_name) # Limit, precision, and scale are all handled by the superclass. - column_definitions(table_name).map do |column_name, type, default, notnull, oid, fmod| + column_definitions(table_name).map do |column_name, type, default, notnull, oid, fmod, collation| oid = oid.to_i fmod = fmod.to_i type_metadata = fetch_type_metadata(column_name, type, oid, fmod) default_value = extract_value_from_default(default) default_function = extract_default_function(default_value, default) - new_column(column_name, default_value, type_metadata, !notnull, default_function) + new_column(column_name, default_value, type_metadata, !notnull, default_function, collation) end end @@ -409,6 +416,9 @@ module ActiveRecord quoted_column_name = quote_column_name(column_name) sql_type = type_to_sql(type, options[:limit], options[:precision], options[:scale], options[:array]) sql = "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quoted_column_name} TYPE #{sql_type}" + if options[:collation] + sql << " COLLATE \"#{options[:collation]}\"" + end if options[:using] sql << " USING #{options[:using]}" elsif options[:cast_as] diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 332ac9d88c..7e15c2ab26 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -772,7 +772,9 @@ module ActiveRecord def column_definitions(table_name) # :nodoc: exec_query(<<-end_sql, 'SCHEMA').rows SELECT a.attname, format_type(a.atttypid, a.atttypmod), - pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod + pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod, + (SELECT c.collname FROM pg_collation c, pg_type t + WHERE c.oid = a.attcollation AND t.oid = a.atttypid AND a.attcollation <> t.typcollation) FROM pg_attribute a LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum WHERE a.attrelid = '#{quote_table_name(table_name)}'::regclass diff --git a/activerecord/test/cases/adapters/postgresql/collation_test.rb b/activerecord/test/cases/adapters/postgresql/collation_test.rb new file mode 100644 index 0000000000..17ef5f304c --- /dev/null +++ b/activerecord/test/cases/adapters/postgresql/collation_test.rb @@ -0,0 +1,53 @@ +require "cases/helper" +require 'support/schema_dumping_helper' + +class PostgresqlCollationTest < ActiveRecord::TestCase + include SchemaDumpingHelper + + def setup + @connection = ActiveRecord::Base.connection + @connection.create_table :postgresql_collations, force: true do |t| + t.string :string_c, collation: 'C' + t.text :text_posix, collation: 'POSIX' + end + end + + def teardown + @connection.drop_table :postgresql_collations, if_exists: true + end + + test "string column with collation" do + column = @connection.columns(:postgresql_collations).find { |c| c.name == 'string_c' } + assert_equal :string, column.type + assert_equal 'C', column.collation + end + + test "text column with collation" do + column = @connection.columns(:postgresql_collations).find { |c| c.name == 'text_posix' } + assert_equal :text, column.type + assert_equal 'POSIX', column.collation + end + + test "add column with collation" do + @connection.add_column :postgresql_collations, :title, :string, collation: 'C' + + column = @connection.columns(:postgresql_collations).find { |c| c.name == 'title' } + assert_equal :string, column.type + assert_equal 'C', column.collation + end + + test "change column with collation" do + @connection.add_column :postgresql_collations, :description, :string + @connection.change_column :postgresql_collations, :description, :text, collation: 'POSIX' + + column = @connection.columns(:postgresql_collations).find { |c| c.name == 'description' } + assert_equal :text, column.type + assert_equal 'POSIX', column.collation + end + + test "schema dump includes collation" do + output = dump_table_schema("postgresql_collations") + assert_match %r{t.string\s+"string_c",\s+collation: "C"$}, output + assert_match %r{t.text\s+"text_posix",\s+collation: "POSIX"$}, output + end +end |