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A Toolkit for rapid prototyping of interactors, use cases and service objects, using the DCI paradigm.

WARNING!This implementation will blow the method cache, slow down performance and consume excessive resources (hence the name), thereforeproduction usage is seriously discouraged. Instead, use of aWrapper Based alternative is highly recommended.

DCI (Data, context and interaction) is a new Role-Based Paradigm for specifying collaborating objects.Trygve Reenskaug is the originator best known for formulating the MVC (model–view–controller) pattern.

You can read more about DCI at the following links:

• http://dci.github.io/
• http://dci-in-ruby.info/
• http://fulloo.info/

Add this line to your application's Gemfile:

gem'greedy-dci'

And then execute:

$ bundle

Or install it yourself as:

$ gem install greedy-dci

require'greedy/dci'# DataPurchase=Struct.new(:toy,:buyer)Deliver=Struct.new(:toy,:recipient,:purchase,:status)# BehaviorsmoduleBuyerdefbuy(toy)Purchase.newtoy,selfendendmoduleRecipientdefreceive(purchased)Deliver.newpurchased.toy,self,purchased,:pendingendend# ContextsPurchaseToy=Greedy.context{ |purchaser|usingpurchaser.asBuyerusingpurchaser.asRecipientdefcall(toy)purchased=purchaser.buytoypurchaser.receivepurchasedend}GiftToy=Greedy.context{ |gifter,giftee|usinggifter.asBuyerusinggiftee.asRecipientdefcall(toy)gift=gifter.buytoygiftee.receivegiftend}# Interactionsfinn_purchase_toy=PurchaseToy[purchaser:'Finn']finn_purchase_toy.call'Rusty sword'finn_purchase_toy.('Armor of Zeldron')finn_purchase_toy['The Enchiridion']['Card Wars','Ice Ninja Manual','Bacon'].each &GiftToy[gifter:'Jake',giftee:'Finn']

View more examples

Returns call method as a Proc.

['Card Wars','Ice Ninja Manual','Bacon'].map &GiftToy[gifter:'Jake',giftee:'Finn']

Square brackets are alias for call method.

TransferMoney[from:source_account,to:destination_account][amount:100]

After checking out the repo, runbin/setup to install dependencies. Then, runrake test to run the tests. You can also runbin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, runbundle exec rake install. To release a new version, update the version number inversion.rb, and then runbundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the.gem file torubygems.org.

Bug reports and pull requests are welcome on GitHub athttps://github.com/RichOrElse/greedy-dci.

The gem is available as open source under the terms of theMIT License.