Top Level Namespace

Defined Under Namespace

Modules: ActiveRecord, ActiveSupport, Breakpoint, ClassInheritableAttributes, DB2, DRb, Dependencies, IRB, Inflector, Test Classes: Binding, Class, Fixture, Fixtures, Hash, Logger, Module, Mysql, NilClass, Numeric, Object, String

Constant Summary collapse

MysqlRes =

for compatibility

Mysql::Result
MysqlField = 
Mysql::Field
MysqlError = 
Mysql::Error

Instance Method Summary collapse

Instance Method Details

#assert(&block) ⇒ Object

See Breakpoint.assert



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# File 'lib/active_record/support/breakpoint.rb', line 523

def assert(&block)
  Binding.of_caller do |context|
    Breakpoint.assert(context, &block)
  end
end

#breakpoint(id = nil, &block) ⇒ Object

See Breakpoint.breakpoint



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# File 'lib/active_record/support/breakpoint.rb', line 516

def breakpoint(id = nil, &block)
  Binding.of_caller do |context|
    Breakpoint.breakpoint(id, context, &block)
  end
end

#require_library_or_gem(library_name) ⇒ Object

Method that requires a library, ensuring that rubygems is loaded This is used in the database adaptors to require DB drivers. Reasons: (1) database drivers are the only third-party library that Rails depend upon (2) they are often installed as gems



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# File 'lib/active_record/connection_adapters/abstract_adapter.rb', line 8

def require_library_or_gem(library_name)
  begin
    require library_name
  rescue LoadError => cannot_require
    # 1. Requiring the module is unsuccessful, maybe it's a gem and nobody required rubygems yet. Try.
    begin
      require 'rubygems'
    rescue LoadError => rubygems_not_installed
      raise cannot_require
    end
    # 2. Rubygems is installed and loaded. Try to load the library again
    begin 
      require library_name
    rescue LoadError => gem_not_installed
      raise cannot_require
    end
  end
end

#silence_warnings ⇒ Object 



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# File 'lib/active_record/support/misc.rb', line 1

def silence_warnings
  old_verbose, $VERBOSE = $VERBOSE, nil
  begin
    yield
  ensure
    $VERBOSE = old_verbose
  end
end