Class: PgSync::TableList

Inherits:
Object
  • Object
show all
Includes:
Utils
Defined in:
lib/pgsync/table_list.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Utils

#colorize, #config_file, #db_config_file, #log, #search_tree

Constructor Details

#initialize(args, options, source, config) ⇒ TableList

Returns a new instance of TableList.



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# File 'lib/pgsync/table_list.rb', line 7

def initialize(args, options, source, config)
  @args = args
  @opts = options
  @source = source
  @config = config
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/pgsync/table_list.rb', line 5

def args
  @args
end

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/pgsync/table_list.rb', line 5

def config
  @config
end

#opts ⇒ Object (readonly)

Returns the value of attribute opts.



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# File 'lib/pgsync/table_list.rb', line 5

def opts
  @opts
end

#source ⇒ Object (readonly)

Returns the value of attribute source.



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# File 'lib/pgsync/table_list.rb', line 5

def source
  @source
end

Instance Method Details

#tables ⇒ Object 



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# File 'lib/pgsync/table_list.rb', line 14

def tables
  tables = nil

  if opts[:groups]
    tables ||= Hash.new { |hash, key| hash[key] = {} }
    specified_groups = to_arr(opts[:groups])
    specified_groups.map do |tag|
      group, id = tag.split(":", 2)
      if (t = (config["groups"] || {})[group])
        add_tables(tables, t, id, args[1])
      else
        raise Error, "Group not found: #{group}"
      end
    end
  end

  if opts[:tables]
    tables ||= Hash.new { |hash, key| hash[key] = {} }
    to_arr(opts[:tables]).each do |tag|
      table, id = tag.split(":", 2)
      raise Error, "Cannot use parameters with tables" if id
      add_table(tables, table, id, args[1])
    end
  end

  if args[0]
    # could be a group, table, or mix
    tables ||= Hash.new { |hash, key| hash[key] = {} }
    specified_groups = to_arr(args[0])
    specified_groups.map do |tag|
      group, id = tag.split(":", 2)
      if (t = (config["groups"] || {})[group])
        add_tables(tables, t, id, args[1])
      else
        raise Error, "Cannot use parameters with tables" if id
        add_table(tables, group, id, args[1])
      end
    end
  end

  tables ||= begin
    exclude = to_arr(opts[:exclude])
    exclude = source.fully_resolve_tables(exclude).keys if exclude.any?

    tabs = source.tables
    unless opts[:all_schemas]
      schemas = Set.new(opts[:schemas] ? to_arr(opts[:schemas]) : source.search_path)
      tabs.select! { |t| schemas.include?(t.split(".", 2)[0]) }
    end

    Hash[(tabs - exclude).map { |k| [k, {}] }]
  end

  source.fully_resolve_tables(tables)
end