83 lines
1.7 KiB
Ruby
83 lines
1.7 KiB
Ruby
module CouchRest
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class Response < Hash
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def initialize keys = {}
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keys.each do |k,v|
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self[k.to_s] = v
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end
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end
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def []= key, value
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super(key.to_s, value)
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end
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def [] key
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super(key.to_s)
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end
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end
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class Document < Response
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attr_accessor :database
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# alias for self['_id']
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def id
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self['_id']
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end
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# alias for self['_rev']
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def rev
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self['_rev']
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end
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# returns true if the document has never been saved
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def new_record?
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!rev
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end
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# Saves the document to the db using create or update. Also runs the :save
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# callbacks. Sets the <tt>_id</tt> and <tt>_rev</tt> fields based on
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# CouchDB's response.
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def save
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raise ArgumentError, "doc.database required for saving" unless database
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if new_record?
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create
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else
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update
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end
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end
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# Deletes the document from the database. Runs the :delete callbacks.
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# Removes the <tt>_id</tt> and <tt>_rev</tt> fields, preparing the
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# document to be saved to a new <tt>_id</tt>.
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def destroy
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result = database.delete self
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if result['ok']
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self['_rev'] = nil
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self['_id'] = nil
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end
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result['ok']
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end
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protected
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# Saves a document for the first time, after running the before(:create)
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# callbacks, and applying the unique_id.
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def create
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set_unique_id if respond_to?(:set_unique_id) # hack
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save_doc
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end
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# Saves the document and runs the :update callbacks.
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def update
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save_doc
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end
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private
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def save_doc
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result = database.save self
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result['ok']
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end
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end
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end |