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[rails.git] / lib / migrate.rb

diff --git a/lib/migrate.rb b/lib/migrate.rb
index 3b1e46fb8fb608f48b0be269a0533f0cc597122b..81cdd4d0541bc485f362c87f4b40b995466b21f6 100644 (file)
--- a/lib/migrate.rb
+++ b/lib/migrate.rb
@@ -21,6 +21,11 @@ module ActiveRecord
          "REFERENCES #{reftbl} (#{quote_column_names(refcol || column_name)})"
       end
 
          "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)
       alias_method :old_options_include_default?, :options_include_default?
 
       def options_include_default?(options)


@@ -46,12 +51,19 @@ module ActiveRecord
         types = old_native_database_types
         types[:bigint] = { :name => "bigint", :limit => 20 }
         types[:double] = { :name => "double" }
         types = old_native_database_types
         types[:bigint] = { :name => "bigint", :limit => 20 }
         types[:double] = { :name => "double" }

+        types[:integer_pk] = { :name => "integer DEFAULT NULL auto_increment PRIMARY KEY" }

         types[:bigint_pk] = { :name => "bigint(20) DEFAULT NULL auto_increment PRIMARY KEY" }
         types[:bigint_pk_64] = { :name => "bigint(64) DEFAULT NULL auto_increment PRIMARY KEY" }
         types[:bigint_auto_64] = { :name => "bigint(64) DEFAULT NULL auto_increment" }
         types[:bigint_auto_11] = { :name => "bigint(11) DEFAULT NULL auto_increment" }
         types[:bigint_auto_20] = { :name => "bigint(20) DEFAULT NULL auto_increment" }
         types[:bigint_pk] = { :name => "bigint(20) DEFAULT NULL auto_increment PRIMARY KEY" }
         types[:bigint_pk_64] = { :name => "bigint(64) DEFAULT NULL auto_increment PRIMARY KEY" }
         types[:bigint_auto_64] = { :name => "bigint(64) DEFAULT NULL auto_increment" }
         types[:bigint_auto_11] = { :name => "bigint(11) DEFAULT NULL auto_increment" }
         types[:bigint_auto_20] = { :name => "bigint(20) DEFAULT NULL auto_increment" }

-        types[:four_byte_unsigned] = { :name=> "integer unsigned NOT NULL" }
+        types[:four_byte_unsigned] = { :name=> "integer unsigned" }
+        types[:inet] = { :name=> "integer unsigned" }
+
+        enumerations.each do |e,v|
+          types[e.to_sym]= { :name => "enum('#{v.join '\',\''}')" }
+        end
+

         types
       end
 
         types
       end
 


@@ -89,13 +101,25 @@ module ActiveRecord
         execute "CREATE FULLTEXT INDEX `#{table_name}_#{column}_idx` ON `#{table_name}` (`#{column}`)"
       end
 
         execute "CREATE FULLTEXT INDEX `#{table_name}_#{column}_idx` ON `#{table_name}` (`#{column}`)"
       end
 

-      def alter_column_nwr_enum (table_name, column)
-        execute "alter table #{table_name} change column #{column} #{column} enum('node','way','relation');"
+      def enumerations
+        @enumerations ||= Hash.new
+      end
+
+      def create_enumeration (enumeration_name, values)
+        enumerations[enumeration_name] = values
+      end
+
+      def drop_enumeration (enumeration_name)
+        enumerations.delete(enumeration_name)

       end
 
       def alter_primary_key(table_name, new_columns)
         execute("alter table #{table_name} drop primary key, add primary key (#{new_columns.join(',')})")
       end
       end
 
       def alter_primary_key(table_name, new_columns)
         execute("alter table #{table_name} drop primary key, add primary key (#{new_columns.join(',')})")
       end

+
+      def interval_constant(interval)
+        "'#{interval}'"
+      end

     end
 
     class PostgreSQLAdapter
     end
 
     class PostgreSQLAdapter


@@ -106,12 +130,19 @@ module ActiveRecord
       def native_database_types
         types = old_native_database_types
         types[:double] = { :name => "double precision" }
       def native_database_types
         types = old_native_database_types
         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[: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
 
         types
       end
 


@@ -134,18 +165,42 @@ module ActiveRecord
         execute "CREATE INDEX #{table_name}_#{column}_idx on #{table_name} (#{column})"
       end
 
         execute "CREATE INDEX #{table_name}_#{column}_idx on #{table_name} (#{column})"
       end
 

-      def alter_column_nwr_enum (table_name, column)
-        response = select_one("select count(*) as count from pg_type where typname = 'nwr_enum'")
-        if response['count'] == "0" #yep, as a string
-          execute "create type nwr_enum as ENUM ('node', 'way', 'relation')"
-        end
-        execute        "alter table #{table_name} drop #{column}"
-        execute "alter table #{table_name} add #{column} nwr_enum"
+      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 alter_primary_key(table_name, new_columns)
         execute "alter table #{table_name} drop constraint #{table_name}_pkey; alter table #{table_name} add primary key (#{new_columns.join(',')})"
       end
       end
 
       def alter_primary_key(table_name, new_columns)
         execute "alter table #{table_name} drop constraint #{table_name}_pkey; 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) }.join(", ")
+        execute "CREATE #{index_type} INDEX #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} USING #{index_method} (#{quoted_column_names})"
+      end

     end
   end
 end
     end
   end
 end