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Buy femara without prescription, This post is for the small fraction of readers of this blog that dig programming in Ruby... Femara online without a prescription, apologies to anyone else....

So, femara tablets, Order femara, I was fooling around with Ruby when I came up with the following trick.

Let's say you have an object that you want to be persistent across invocations of your application, buy femara on internet. Femara discount, A set of configuration settings, history, femara without a prescription, Order femara in canada, who knows what. You don't want to go nuts and worry about a whole database though, buy femara without prescription. There are a couple good super-light-weight transactional persistence libraries built in to Ruby, femara overnight, Buy femara lowest price, PStore and YAML::Store, which do the job, cheap femara in canada. Order femara online, You could them like this:

o = MyCoolObject.new
# to store it first

YAML::Store.new(".storage_for_my_app").transaction do | store |

  store['MyCoolObject'] = o

end
# .. and to retrieve it from storage, femara in uk.  Cheap femara pill, YAML::Store.new(".storage_for_my_app").transaction do | store |

  o = store['MyCoolObject']

end

You've got to remember to store it again when you're done with it of course.

I came up with a variation on this:

 Buy femara without prescription, class MyCoolObject

  def MyCoolObject.stored_in(filename, *newargs)  # class method

    YAML::Store.new(filename).transaction do | store |

      store['self'] ||= MyCoolObject.new(*newargs)

      yield store['self']

   end

  end

end

Now I can make sure everything I do with my cool object "o" is stored persistently. All I have to do is wrap my actions on "o" in a stored_in block:

MyCoolObject.stored_in(".storage_for_my_app", femara side effects, Femara malaysia, 'a', 'b') do | o |
# o is either recreated from .storage_for_my_app, no prescription femara, Purchase femara overnight delivery, or
# created anew with args 'a' and 'b' passed to its constructor

# .. here we do stuff with o
end
# and here o is re-serialized, femara australia, Buy discount femara online, with any changes intact.

When the block opens, 'o' is either resurrected from the storage file, buy femara generic, Buy femara us, or created anew from *new_args if there's nothing in the file.

When the block ends, femara information, Femara cheap price, any changes to 'o' are stored there.

As long as you keep all your interaction with the object inside stored_in blocks, buy femara internet, Femara online pharmacy, you're golden. You get persistence, buy femara without prescription.

Note that 'o' can hold other objects in its instance variables, find discount femara online, Femara pills, which can hold other objects, and so on -- anything in there that's serializable can be stored this way, find femara online. Order femara cheap online, So you can use this to persist a whole pile of objects in one file as long as they all live in a single object which has a stored_in class method.

I thought this would be cool functionality to include in a module, buy femara from canada, Sale femara, whereupon I learned that in Ruby, a module's "class methods" are not added to a class when you include a module in it, cheap femara from canada. Cheap femara tablets, (I guess because a module isn't a class and so it doesn't really technically have "class methods"...) but you can get the same effect using a tiny bit of trickery with the "included" method of the Module class.

Here's a module you can use to give any class these kind of storage abilities:



require 'yaml/store'
module StoredInFile

  def self.included(base)

   def base.stored_in(path, femara online, Cheapest femara online, *args)

     YAML::Store.new(path).transaction do | store |

       store['self'] ||= self.new(*args)

       yield store['self']

     end

    end

  end

end

You use it like this:



class MyCoolObject

include StoredInFile
# other class stuff goes here
end

And that's it.

UPDATE:

Stupid Wordpress makes including code in a page really hard... keeps eating my formatting. I think I've got it.., femara buy online. Overnight femara. Femara buy drug. Generic femara cheap. Find discount femara.

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