Class: RestfulModelCollection

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

Instance Method Summary collapse

Constructor Details

#initialize(model_class, api, parent = nil) ⇒ RestfulModelCollection

Returns a new instance of RestfulModelCollection.



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# File 'lib/restful_model_collection.rb', line 5

def initialize(model_class, api, parent = nil)
  @model_class = model_class
  @_parent = parent
  @_api = api
end

Instance Method Details

#all ⇒ Object 



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# File 'lib/restful_model_collection.rb', line 28

def all
  range(0, Float::INFINITY)
end

#build(*args) ⇒ Object 



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# File 'lib/restful_model_collection.rb', line 60

def build(*args)
  @model_class.new(self, *args)
end

#delete(item_or_id) ⇒ Object 



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# File 'lib/restful_model_collection.rb', line 49

def delete(item_or_id)
  item_or_id = item_or_id._id if item_or_id.is_a?(RestfulModel)
  url = @_api.url_for_path(self.path(item_or_id))
  RestClient.delete(url)
end

#each ⇒ Object 



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# File 'lib/restful_model_collection.rb', line 11

def each
  offset = 0
  finished = false
  while (!finished) do
    items = get_restful_model_collection(offset)
    break if items.length == 0
    items.each { |item|
      yield item
    }
    offset += items.length
  end
end

#find(id) ⇒ Object 



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# File 'lib/restful_model_collection.rb', line 55

def find(id)
  return nil unless id
  get_restful_model(id)
end

#first ⇒ Object 



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# File 'lib/restful_model_collection.rb', line 24

def first
  get_restful_model_collection.first
end

#inflate_collection(items = []) ⇒ Object 



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# File 'lib/restful_model_collection.rb', line 64

def inflate_collection(items = [])
  models = []

  return unless items.is_a?(Array)
  items.each do |json|
    if @model_class < RestfulModel
      model = @model_class.new(self)
      model.inflate(json)
    else
      model = @model_class.new(json)
    end
    models.push(model)
  end
  models
end

#path(id = "") ⇒ Object 



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# File 'lib/restful_model_collection.rb', line 80

def path(id = "")
  prefix = @_parent ? @_parent.path : ''
  "#{prefix}/#{@model_class.collection_name}/#{id}"
end

#range(offset = 0, count = 50) ⇒ Object 



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# File 'lib/restful_model_collection.rb', line 32

def range(offset = 0, count = 50)
  accumulated = []
  finished = false
  chunk_size = 50

  while (!finished && accumulated.length < count) do
    results = get_restful_model_collection(offset + accumulated.length, chunk_size)
    accumulated = accumulated.concat(results)

    # we're done if we have more than 'count' items, or if we asked for 50 and got less than 50...
    finished = accumulated.length >= count || results.length == 0 || (results.length % chunk_size != 0)
  end

  accumulated = accumulated[0..count] if count < Float::INFINITY
  accumulated
end