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Add rename_table to mysql, sqlite and postgres adapters for use in mi…

…grations

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2477 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
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commit ebfddf35b9d4ebcdb5be37df77b83b2e1e16df97 1 parent 7e70fc1
Tobias Lütke authored
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9 activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -90,6 +90,13 @@ def create_table(name, options = {})
create_sql << ") #{options[:options]}"
execute create_sql
end
+
+ # Renames a table.
+ # ===== Example
+ # rename_table('octopuses', 'octopi')
+ def rename_table(name, new_name)
+ raise NotImplementedError, "rename_table is not implemented"
+ end
# Drops a table from the database.
def drop_table(name)
@@ -109,7 +116,7 @@ def add_column(table_name, column_name, type, options = {})
# remove_column(:suppliers, :qualification)
def remove_column(table_name, column_name)
execute "ALTER TABLE #{table_name} DROP #{column_name}"
- end
+ end
# Changes the column's definition according to the new options.
# See TableDefinition#column for details of the options you can use.
View
4 activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
@@ -258,6 +258,10 @@ def columns(table_name, name = nil)#:nodoc:
def create_table(name, options = {}) #:nodoc:
super(name, {:options => "ENGINE=InnoDB"}.merge(options))
end
+
+ def rename_table(name, new_name)
+ execute "RENAME TABLE #{name} TO #{new_name}"
+ end
def change_column_default(table_name, column_name, default) #:nodoc:
current_type = select_one("SHOW COLUMNS FROM #{table_name} LIKE '#{column_name}'")["Type"]
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4 activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -198,6 +198,10 @@ def schema_search_path=(schema_csv) #:nodoc:
def schema_search_path #:nodoc:
@schema_search_path ||= query('SHOW search_path')[0][0]
end
+
+ def rename_table(name, new_name)
+ execute "ALTER TABLE #{name} RENAME TO #{new_name}"
+ end
def add_column(table_name, column_name, type, options = {})
native_type = native_database_types[type]
View
4 activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb
@@ -214,6 +214,10 @@ def remove_index(table_name, options={}) #:nodoc:
execute "DROP INDEX #{index_name}"
end
+
+ def rename_table(name, new_name)
+ move_table(name, new_name)
+ end
def add_column(table_name, column_name, type, options = {}) #:nodoc:
alter_table(table_name) do |definition|
View
19 activerecord/test/migration_test.rb
@@ -180,6 +180,25 @@ def test_add_rename
end
+ def test_rename_table
+ begin
+ ActiveRecord::Base.connection.create_table :octopuses do |t|
+ t.column :url, :string
+ end
+ ActiveRecord::Base.connection.rename_table :octopuses, :octopi
+
+ assert_nothing_raised do
+ ActiveRecord::Base.connection.execute "INSERT INTO octopi (url) VALUES ('http://www.foreverflying.com/octopus-black7.jpg')"
+ end
+
+ assert_equal 'http://www.foreverflying.com/octopus-black7.jpg', ActiveRecord::Base.connection.select_value("SELECT url FROM octopi WHERE id=1")
+
+ ensure
+ ActiveRecord::Base.connection.drop_table :octopuses rescue nil
+ ActiveRecord::Base.connection.drop_table :octopi rescue nil
+ end
+ end
+
def test_change_column
Person.connection.add_column "people", "bio", :string
assert_nothing_raised { Person.connection.change_column "people", "bio", :text }
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