X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/a3ad9912d53da7df80ac969a03fd8383b6e29f5f..00375024263970a43ea7d39e3c65dfd0f32e8869:/lib/migrate.rb diff --git a/lib/migrate.rb b/lib/migrate.rb index 4cbabd6c0..baa7faecd 100644 --- a/lib/migrate.rb +++ b/lib/migrate.rb @@ -1,37 +1,139 @@ module ActiveRecord module ConnectionAdapters module SchemaStatements + def quote_column_names(column_name) + Array(column_name).map { |e| quote_column_name(e) }.join(", ") + end + def add_primary_key(table_name, column_name, options = {}) column_names = Array(column_name) quoted_column_names = column_names.map { |e| quote_column_name(e) }.join(", ") execute "ALTER TABLE #{table_name} ADD PRIMARY KEY (#{quoted_column_names})" end - alias_method :old_add_column_options!, :add_column_options! + def remove_primary_key(table_name) + execute "ALTER TABLE #{table_name} DROP PRIMARY KEY" + end - def add_column_options!(sql, options) - old_add_column_options!(sql, options) - sql << " #{options[:options]}" + def add_foreign_key(table_name, column_name, reftbl, refcol = nil) + execute "ALTER TABLE #{table_name} ADD " + + "FOREIGN KEY (#{quote_column_names(column_name)}) " + + "REFERENCES #{reftbl} (#{quote_column_names(refcol || column_name)})" + end + + def remove_foreign_key(table_name, column_name, reftbl, refcol = nil) + execute "ALTER TABLE #{table_name} DROP " + + "CONSTRAINT #{table_name}_#{column_name[0]}_fkey" end alias_method :old_options_include_default?, :options_include_default? def options_include_default?(options) - old_options_include_default?(options) && !(options[:options] =~ /AUTO_INCREMENT/i) + return false if options[:options] =~ /AUTO_INCREMENT/i + return old_options_include_default?(options) + end + + alias_method :old_add_column_options!, :add_column_options! + + def add_column_options!(sql, options) + sql << " UNSIGNED" if options[:unsigned] + old_add_column_options!(sql, options) + sql << " #{options[:options]}" end end - class MysqlAdapter + class PostgreSQLAdapter alias_method :old_native_database_types, :native_database_types def native_database_types types = old_native_database_types - types[:bigint] = { :name => "bigint", :limit => 20 } + types[:double] = { :name => "double precision" } + types[:integer_pk] = { :name => "serial PRIMARY KEY" } + types[:bigint_pk] = { :name => "bigserial PRIMARY KEY" } + types[:bigint_pk_64] = { :name => "bigserial PRIMARY KEY" } + types[:bigint_auto_64] = { :name => "bigint" } #fixme: need autoincrement? + types[:bigint_auto_11] = { :name => "bigint" } #fixme: need autoincrement? + types[:bigint_auto_20] = { :name => "bigint" } #fixme: need autoincrement? + types[:four_byte_unsigned] = { :name => "bigint" } # meh + types[:inet] = { :name=> "inet" } + + enumerations.each_key do |e| + types[e.to_sym]= { :name => e } + end + types end + + def myisam_table + return { :id => false, :force => true, :options => ""} + end + + def innodb_table + return { :id => false, :force => true, :options => ""} + end + + def innodb_option + return "" + end + + def change_engine (table_name, engine) + end + + def add_fulltext_index (table_name, column) + execute "CREATE INDEX #{table_name}_#{column}_idx on #{table_name} (#{column})" + end + + def enumerations + @enumerations ||= Hash.new + end + + def create_enumeration(enumeration_name, values) + enumerations[enumeration_name] = values + execute "CREATE TYPE #{enumeration_name} AS ENUM ('#{values.join '\',\''}')" + end + + def drop_enumeration(enumeration_name) + execute "DROP TYPE #{enumeration_name}" + enumerations.delete(enumeration_name) + end + + def rename_enumeration(old_name, new_name) + execute "ALTER TYPE #{quote_table_name(old_name)} RENAME TO #{quote_table_name(new_name)}" + end + + def alter_primary_key(table_name, new_columns) + execute "ALTER TABLE #{table_name} DROP CONSTRAINT #{table_name}_pkey" + execute "ALTER TABLE #{table_name} ADD PRIMARY KEY (#{new_columns.join(',')})" + end + + def interval_constant(interval) + "'#{interval}'::interval" + end + + def add_index(table_name, column_name, options = {}) + column_names = Array(column_name) + index_name = index_name(table_name, :column => column_names) + + if Hash === options # legacy support, since this param was a string + index_type = options[:unique] ? "UNIQUE" : "" + index_name = options[:name] || index_name + index_method = options[:method] || "BTREE" + else + index_type = options + end + + quoted_column_names = column_names.map { |e| quote_column_name(e) } + if Hash === options and options[:lowercase] + quoted_column_names = quoted_column_names.map { |e| "LOWER(#{e})" } + end + quoted_column_names = quoted_column_names.join(", ") + + execute "CREATE #{index_type} INDEX #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} USING #{index_method} (#{quoted_column_names})" + end + + def rename_index(table_name, old_name, new_name) + execute "ALTER INDEX #{quote_table_name(old_name)} RENAME TO #{quote_table_name(new_name)}" + end end end end - -myisam_table = { :id => false, :force => true, :options => "ENGINE=MyIsam" } -innodb_table = { :id => false, :force => true, :options => "ENGINE=InnoDB" }