c280b3a29b
Refactored basic directory structure. Moved to ActiveSupport for Validations and Callbacks. Cleaned up older code, and removed support for text property types.
123 lines
3.3 KiB
Ruby
123 lines
3.3 KiB
Ruby
module CouchRest
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module Model
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module ClassProxy
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def self.included(base)
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base.extend(ClassMethods)
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end
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module ClassMethods
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# Return a proxy object which represents a model class on a
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# chosen database instance. This allows you to DRY operations
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# where a database is chosen dynamically.
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#
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# ==== Example:
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#
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# db = CouchRest::Database.new(...)
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# articles = Article.on(db)
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#
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# articles.all { ... }
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# articles.by_title { ... }
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#
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# u = articles.get("someid")
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#
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# u = articles.new(:title => "I like plankton")
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# u.save # saved on the correct database
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def on(database)
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Proxy.new(self, database)
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end
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end
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class Proxy #:nodoc:
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def initialize(klass, database)
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@klass = klass
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@database = database
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end
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# Base
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def new(*args)
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doc = @klass.new(*args)
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doc.database = @database
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doc
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end
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def method_missing(m, *args, &block)
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if has_view?(m)
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query = args.shift || {}
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return view(m, query, *args, &block)
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elsif m.to_s =~ /^find_(by_.+)/
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view_name = $1
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if has_view?(view_name)
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return first_from_view(view_name, *args)
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end
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end
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super
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end
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# DocumentQueries
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def all(opts = {}, &block)
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docs = @klass.all({:database => @database}.merge(opts), &block)
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docs.each { |doc| doc.database = @database if doc.respond_to?(:database) } if docs
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docs
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end
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def count(opts = {}, &block)
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@klass.all({:database => @database, :raw => true, :limit => 0}.merge(opts), &block)['total_rows']
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end
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def first(opts = {})
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doc = @klass.first({:database => @database}.merge(opts))
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doc.database = @database if doc && doc.respond_to?(:database)
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doc
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end
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def get(id)
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doc = @klass.get(id, @database)
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doc.database = @database if doc && doc.respond_to?(:database)
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doc
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end
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alias :find :get
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# Views
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def has_view?(view)
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@klass.has_view?(view)
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end
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def view(name, query={}, &block)
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docs = @klass.view(name, {:database => @database}.merge(query), &block)
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docs.each { |doc| doc.database = @database if doc.respond_to?(:database) } if docs
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docs
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end
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def first_from_view(name, *args)
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# add to first hash available, or add to end
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(args.last.is_a?(Hash) ? args.last : (args << {}).last)[:database] = @database
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doc = @klass.first_from_view(name, *args)
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doc.database = @database if doc && doc.respond_to?(:database)
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doc
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end
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# DesignDoc
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def design_doc
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@klass.design_doc
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end
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def refresh_design_doc
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@klass.refresh_design_doc(@database)
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end
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def save_design_doc
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@klass.save_design_doc(@database)
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end
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end
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end
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end
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end
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