+if defined?(ActiveRecord::ConnectionAdapters::AbstractAdapter)
+ 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
+
+ module PostgreSQLAdapter
+ def quote_column_name(name)
+ Array(name).map { |n| super(n) }.join(", ")
+ end
+
+ def add_primary_key(table_name, column_name, _options = {})
+ table_name = quote_table_name(table_name)
+ column_name = quote_column_name(column_name)
+
+ execute "ALTER TABLE #{table_name} ADD PRIMARY KEY (#{column_name})"
+ end
+
+ def remove_primary_key(table_name)
+ table_name = quote_table_name(table_name)
+
+ execute "ALTER TABLE #{table_name} DROP PRIMARY KEY"
+ end
+
+ def alter_primary_key(table_name, new_columns)
+ constraint_name = quote_table_name("#{table_name}_pkey")
+ table_name = quote_table_name(table_name)
+ new_columns = quote_column_name(new_columns)
+
+ execute "ALTER TABLE #{table_name} DROP CONSTRAINT #{constraint_name}"
+ execute "ALTER TABLE #{table_name} ADD PRIMARY KEY (#{new_columns})"
+ end
+
+ def create_enumeration(enumeration_name, values)
+ execute "CREATE TYPE #{enumeration_name} AS ENUM ('#{values.join '\',\''}')"
+ end
+
+ def drop_enumeration(enumeration_name)
+ execute "DROP TYPE #{enumeration_name}"
+ end
+
+ def rename_enumeration(old_name, new_name)
+ old_name = quote_table_name(old_name)
+ new_name = quote_table_name(new_name)
+
+ execute "ALTER TYPE #{old_name} RENAME TO #{new_name}"
+ end
+ end
+ end
+ end
+
+ ActiveRecord::ConnectionAdapters::AbstractAdapter.prepend(OpenStreetMap::ActiveRecord::AbstractAdapter)
+ ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.prepend(OpenStreetMap::ActiveRecord::PostgreSQLAdapter)
+end