diff options
Diffstat (limited to 'activerecord/lib/active_record/schema_dumper.rb')
| -rw-r--r-- | activerecord/lib/active_record/schema_dumper.rb | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb index e055d571ab..64bc68eefd 100644 --- a/activerecord/lib/active_record/schema_dumper.rb +++ b/activerecord/lib/active_record/schema_dumper.rb @@ -91,7 +91,8 @@ HEADER end def tables(stream) - @connection.tables.sort.each do |tbl| + sorted_tables = @connection.tables.sort + sorted_tables.each do |tbl| next if ['schema_migrations', ignore_tables].flatten.any? do |ignored| case ignored when String; remove_prefix_and_suffix(tbl) == ignored @@ -102,6 +103,13 @@ HEADER end table(tbl, stream) end + + # dump foreign keys at the end to make sure all dependent tables exist. + if @connection.supports_foreign_keys? + sorted_tables.each do |tbl| + foreign_keys(tbl, stream) + end + end end def table(table, stream) @@ -212,6 +220,36 @@ HEADER end end + def foreign_keys(table, stream) + if (foreign_keys = @connection.foreign_keys(table)).any? + add_foreign_key_statements = foreign_keys.map do |foreign_key| + parts = [ + 'add_foreign_key ' + remove_prefix_and_suffix(foreign_key.from_table).inspect, + remove_prefix_and_suffix(foreign_key.to_table).inspect, + ] + + if foreign_key.column != @connection.foreign_key_column_for(foreign_key.to_table) + parts << ('column: ' + foreign_key.column.inspect) + end + + if foreign_key.custom_primary_key? + parts << ('primary_key: ' + foreign_key.primary_key.inspect) + end + + if foreign_key.name !~ /^fk_rails_[0-9a-f]{10}$/ + parts << ('name: ' + foreign_key.name.inspect) + end + + parts << ('on_update: ' + foreign_key.on_update.inspect) if foreign_key.on_update + parts << ('on_delete: ' + foreign_key.on_delete.inspect) if foreign_key.on_delete + + ' ' + parts.join(', ') + end + + stream.puts add_foreign_key_statements.sort.join("\n") + end + end + def remove_prefix_and_suffix(table) table.gsub(/^(#{@options[:table_name_prefix]})(.+)(#{@options[:table_name_suffix]})$/, "\\2") end |