Public Instance methods
dump_columns()
Dump this generator’s columns to a string that could be evaled inside another instance to represent the same columns
[show source]
# File lib/sequel/extensions/schema_dumper.rb 407 def dump_columns 408 strings = [] 409 cols = columns.dup 410 cols.each do |x| 411 x.delete(:on_delete) if x[:on_delete] == :no_action 412 x.delete(:on_update) if x[:on_update] == :no_action 413 end 414 if (pkn = primary_key_name) && !@primary_key[:keep_order] 415 cols.delete_if{|x| x[:name] == pkn} 416 pk = @primary_key.dup 417 pkname = pk.delete(:name) 418 @db.serial_primary_key_options.each{|k,v| pk.delete(k) if v == pk[k]} 419 strings << "primary_key #{pkname.inspect}#{opts_inspect(pk)}" 420 end 421 cols.each do |c| 422 c = c.dup 423 name = c.delete(:name) 424 strings << if table = c.delete(:table) 425 c.delete(:type) if c[:type] == Integer || c[:type] == 'integer' 426 "foreign_key #{name.inspect}, #{table.inspect}#{opts_inspect(c)}" 427 elsif pkn == name 428 @db.serial_primary_key_options.each{|k,v| c.delete(k) if v == c[k]} 429 "primary_key #{name.inspect}#{opts_inspect(c)}" 430 else 431 type = c.delete(:type) 432 opts = opts_inspect(c) 433 case type 434 when Class 435 "#{type.name} #{name.inspect}#{opts}" 436 when :Bignum 437 "Bignum #{name.inspect}#{opts}" 438 else 439 "column #{name.inspect}, #{type.inspect}#{opts}" 440 end 441 end 442 end 443 strings.join("\n") 444 end
dump_constraints()
Dump this generator’s constraints to a string that could be evaled inside another instance to represent the same constraints
[show source]
# File lib/sequel/extensions/schema_dumper.rb 448 def dump_constraints 449 cs = constraints.map do |c| 450 c = c.dup 451 type = c.delete(:type) 452 case type 453 when :check 454 raise(Error, "can't dump check/constraint specified with Proc") if c[:check].is_a?(Proc) 455 name = c.delete(:name) 456 if !name and c[:check].length == 1 and c[:check].first.is_a?(Hash) 457 "check #{c[:check].first.inspect[1...-1]}" 458 else 459 "#{name ? "constraint #{name.inspect}," : 'check'} #{c[:check].map(&:inspect).join(', ')}" 460 end 461 when :foreign_key 462 c.delete(:on_delete) if c[:on_delete] == :no_action 463 c.delete(:on_update) if c[:on_update] == :no_action 464 c.delete(:deferrable) unless c[:deferrable] 465 cols = c.delete(:columns) 466 table = c.delete(:table) 467 "#{type} #{cols.inspect}, #{table.inspect}#{opts_inspect(c)}" 468 else 469 cols = c.delete(:columns) 470 "#{type} #{cols.inspect}#{opts_inspect(c)}" 471 end 472 end 473 cs.join("\n") 474 end
dump_indexes(options=OPTS)
Dump this generator’s indexes to a string that could be evaled inside another instance to represent the same indexes. Options:
| :add_index |
Use add_index instead of index, so the methods can be called outside of a generator but inside a migration. The value of this option should be the table name to use. |
| :drop_index |
Same as add_index, but create drop_index statements. |
| :ignore_errors |
Add the ignore_errors option to the outputted indexes |
[show source]
# File lib/sequel/extensions/schema_dumper.rb 483 def dump_indexes(options=OPTS) 484 is = indexes.map do |c| 485 c = c.dup 486 cols = c.delete(:columns) 487 if table = options[:add_index] || options[:drop_index] 488 "#{options[:drop_index] ? 'drop' : 'add'}_index #{table.inspect}, #{cols.inspect}#{', :ignore_errors=>true' if options[:ignore_errors]}#{opts_inspect(c)}" 489 else 490 "index #{cols.inspect}#{opts_inspect(c)}" 491 end 492 end 493 is = is.reverse if options[:drop_index] 494 is.join("\n") 495 end