Class: Praxis::Mapper::Support::SchemaDumper

Inherits:
Object
  • Object
show all
Defined in:
lib/praxis-mapper/support/schema_dumper.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(schema_root = '.', **options) ⇒ SchemaDumper

Returns a new instance of SchemaDumper.



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# File 'lib/praxis-mapper/support/schema_dumper.rb', line 9

def initialize(schema_root='.', **options)
  @schema_root = Pathname.new(schema_root)

  @options = options
  @connection_manager = ConnectionManager.new

  @repositories = Hash.new do |hash, repository_name|
    hash[repository_name] = Set.new
  end

  setup!
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/praxis-mapper/support/schema_dumper.rb', line 7

def options
  @options
end

#repositories ⇒ Object (readonly)

Returns the value of attribute repositories.



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# File 'lib/praxis-mapper/support/schema_dumper.rb', line 7

def repositories
  @repositories
end

#schema_root ⇒ Object (readonly)

Returns the value of attribute schema_root.



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# File 'lib/praxis-mapper/support/schema_dumper.rb', line 7

def schema_root
  @schema_root
end

Instance Method Details

#dump!(repository_name) ⇒ Object 



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# File 'lib/praxis-mapper/support/schema_dumper.rb', line 44

def dump!(repository_name)
  connection = @connection_manager.checkout(repository_name)
  connection.extension :schema_dumper

  tables = self.repositories.fetch repository_name

  FileUtils.mkdir_p(schema_root + repository_name.to_s)

  tables.each do |table|
    File.open(schema_root + repository_name.to_s + "#{table}.rb" ,"w+") do |file|
      file.puts "Sequel.migration do"
      file.puts "  up do"
      file.puts connection.dump_table_schema(table).gsub(/^/o, '    ')
      file.puts "\n"
      file.puts "  end"
      file.puts "end"
    end
  end
end

#dump_all! ⇒ Object 



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# File 'lib/praxis-mapper/support/schema_dumper.rb', line 38

def dump_all!
  repositories.each do |repository_name, tables|
    self.dump!(repository_name)
  end
end

#setup! ⇒ Object 



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# File 'lib/praxis-mapper/support/schema_dumper.rb', line 22

def setup!
  @connection_manager.repositories.each do |repository_name, config|
    next unless config[:query] == Praxis::Mapper::Query::Sql

    models = Praxis::Mapper::Model.descendants.
      select { |model| model.repository_name == repository_name }.
      select { |model| model.table_name }

    models.each do |model|
      table = model.table_name
      repository = model.repository_name
      self.repositories[repository] << table
    end
  end
end