Class: Rack::JSON::Collection

Inherits:
Object
  • Object
show all
Defined in:
lib/rackjson/collection.rb

Instance Method Summary collapse

Constructor Details

#initialize(collection) ⇒ Collection

Returns a new instance of Collection.



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# File 'lib/rackjson/collection.rb', line 3

def initialize(collection)
  @collection = collection
end

Instance Method Details

#all(options = {}) ⇒ Object 



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# File 'lib/rackjson/collection.rb', line 7

def all(options={})
  @collection.find({}, options).to_a
end

#create(document) ⇒ Object 



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# File 'lib/rackjson/collection.rb', line 11

def create(document)
  @collection.save(document)
end

#delete(selector = {}) ⇒ Object 



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# File 'lib/rackjson/collection.rb', line 15

def delete(selector={})
  @collection.remove(prepared(selector))
end

#delete_all ⇒ Object 



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# File 'lib/rackjson/collection.rb', line 19

def delete_all
  @collection.remove
end

#exists?(selector) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rackjson/collection.rb', line 23

def exists?(selector)
  !@collection.find(prepared(selector)).to_a.empty?
end

#find(selector, options = {}) ⇒ Object 



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# File 'lib/rackjson/collection.rb', line 27

def find(selector, options={})
  if selector.is_a? Hash
    @collection.find(selector, options).inject([]) {|documents, row| documents << Rack::JSON::Document.new(row)}
  else
    Rack::JSON::Document.new(@collection.find_one(:_id => selector))
  end
end

#save(document) ⇒ Object 



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# File 'lib/rackjson/collection.rb', line 35

def save(document)
  @collection.save(document)
end

#update(selector, document, query = {}) ⇒ Object 



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# File 'lib/rackjson/collection.rb', line 39

def update(selector, document, query={})
  if exists?(prepared(selector).merge(query))
    @collection.update(prepared(selector).merge(query), document, :upsert => false)
  else
    false
  end
end