Add section on using rbenv, separate from main installation instructions.

[rails.git] / lib / migrate.rb

diff --git a/lib/migrate.rb b/lib/migrate.rb
index 68ff04615b48b4a3eee3cd90aaa3fd39c1da8d34..182a2a08614485ef690590bcb940e21849ce671a 100644 (file)
--- a/lib/migrate.rb
+++ b/lib/migrate.rb
@@ -1,74 +1,45 @@
-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
-
-      def remove_primary_key(table_name)
-        execute "ALTER TABLE #{table_name} DROP PRIMARY KEY"
+module OpenStreetMap
+  module ActiveRecord
+    module AbstractAdapter
+      def add_index_options(table_name, column_name, options = {})
+        columns = options.delete(:columns)
+        index_name, index_type, index_columns, index_options, algorithm, using = super(table_name, column_name, options)
+        [index_name, index_type, columns || index_columns, index_options, algorithm, using]
       end
+    end
 
-      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)})"
+    module PostgreSQLAdapter
+      def quote_column_name(name)
+        Array(name).map { |n| super(n) }.join(", ")
       end
 
-      alias_method :old_options_include_default?, :options_include_default?
-
-      def options_include_default?(options)
-        return false if options[:options] =~ /AUTO_INCREMENT/i
-        return old_options_include_default?(options)
+      def add_primary_key(table_name, column_name, _options = {})
+        execute "ALTER TABLE #{quote_table_name(table_name)} ADD PRIMARY KEY (#{quote_column_name(column_name)})"
       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]}"
+      def remove_primary_key(table_name)
+        execute "ALTER TABLE #{quote_table_name(table_name)} DROP PRIMARY KEY"
       end
-    end
-
-    class MysqlAdapter
-      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" }
-        types[:bigint_pk] = { :name => "bigint(20) DEFAULT NULL auto_increment PRIMARY KEY" }
-        types
+      def alter_primary_key(table_name, new_columns)
+        execute "ALTER TABLE #{quote_table_name(table_name)} DROP CONSTRAINT #{quote_table_name(table_name + '_pkey')}"
+        execute "ALTER TABLE #{quote_table_name(table_name)} ADD PRIMARY KEY (#{quote_column_name(new_columns)})"
       end
 
-      def change_column(table_name, column_name, type, options = {})
-        unless options_include_default?(options)
-          options[:default] = select_one("SHOW COLUMNS FROM #{table_name} LIKE '#{column_name}'")["Default"]
-
-          unless type == :string or type == :text
-            options.delete(:default) if options[:default] = "";
-          end
-        end
-
-        change_column_sql = "ALTER TABLE #{table_name} CHANGE #{column_name} #{column_name} #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
-        add_column_options!(change_column_sql, options)
-        execute(change_column_sql) 
+      def create_enumeration(enumeration_name, values)
+        execute "CREATE TYPE #{enumeration_name} AS ENUM ('#{values.join '\',\''}')"
       end
 
-      def myisam_table
-        return { :id => false, :force => true, :options => "ENGINE=MyIsam" }
+      def drop_enumeration(enumeration_name)
+        execute "DROP TYPE #{enumeration_name}"
       end
 
-      def innodb_table
-        return { :id => false, :force => true, :options => "ENGINE=InnoDB" }
+      def rename_enumeration(old_name, new_name)
+        execute "ALTER TYPE #{quote_table_name(old_name)} RENAME TO #{quote_table_name(new_name)}"
       end
     end
   end
 end
+
+ActiveRecord::ConnectionAdapters::AbstractAdapter.prepend(OpenStreetMap::ActiveRecord::AbstractAdapter)
+ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.prepend(OpenStreetMap::ActiveRecord::PostgreSQLAdapter)