103 lines
3.2 KiB
Ruby
103 lines
3.2 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_document?
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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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# If <tt>bulk</tt> is <tt>true</tt> (defaults to false) the document is cached for bulk save.
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def save(bulk = false)
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raise ArgumentError, "doc.database required for saving" unless database
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result = database.save self, bulk
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result['ok']
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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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# If <tt>bulk</tt> is <tt>true</tt> (defaults to false) the document won't
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# actually be deleted from the db until bulk save.
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def destroy(bulk = false)
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raise ArgumentError, "doc.database required to destroy" unless database
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result = database.delete(self, bulk)
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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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# copies the document to a new id. If the destination id currently exists, a rev must be provided.
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# <tt>dest</tt> can take one of two forms if overwriting: "id_to_overwrite?rev=revision" or the actual doc
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# hash with a '_rev' key
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def copy(dest)
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raise ArgumentError, "doc.database required to copy" unless database
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result = database.copy(self, dest)
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result['ok']
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end
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# moves the document to a new id. If the destination id currently exists, a rev must be provided.
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# <tt>dest</tt> can take one of two forms if overwriting: "id_to_overwrite?rev=revision" or the actual doc
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# hash with a '_rev' key
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def move(dest)
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raise ArgumentError, "doc.database required to copy" unless database
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result = database.move(self, dest)
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result['ok']
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end
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# saves an attachment directly to couchdb
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def put_attachment(name, file, options={})
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raise ArgumentError, "doc.database required to put_attachment" unless database
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result = database.put_attachment(self, name, file, options)
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self['_rev'] = result['rev']
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result['ok']
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end
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# returns an attachment's data
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def fetch_attachment(name)
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raise ArgumentError, "doc.database required to put_attachment" unless database
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database.fetch_attachment(self, name)
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end
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# deletes an attachment directly from couchdb
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def delete_attachment(name)
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raise ArgumentError, "doc.database required to delete_attachment" unless database
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result = database.delete_attachment(self, name)
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self['_rev'] = result['rev']
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result['ok']
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end
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end
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end
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