Class: Quandl::Client::Dataset

Inherits:
Base
  • Object
show all
Defined in:
lib/quandl/client/models/dataset.rb

Defined Under Namespace

Classes: Data

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

her_api, models, models_use_her_api!, url_with_version, use

Class Method Details

.touch_existing(id) ⇒ Object

SCOPES #



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# File 'lib/quandl/client/models/dataset.rb', line 12

def self.touch_existing(id)
  put(File.join(Quandl::Client::Base.url_with_version, "datasets/#{id}/touch")).exists?
end

Instance Method Details

#data ⇒ Object

DATA



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# File 'lib/quandl/client/models/dataset.rb', line 69

def data
  dataset_data.data? ? dataset_data.data : data_scope
end

#data=(value) ⇒ Object 



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# File 'lib/quandl/client/models/dataset.rb', line 73

def data=(value)
  dataset_data.data = value
end

#data_scope ⇒ Object 



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# File 'lib/quandl/client/models/dataset.rb', line 93

def data_scope
  @data_scope ||= Quandl::Client::Dataset::Data.with_id(id)
end

#dataset_data ⇒ Object 



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# File 'lib/quandl/client/models/dataset.rb', line 97

def dataset_data
  @dataset_data ||= Quandl::Client::Dataset::Data.new( id: id )
end

#delete_data ⇒ Object 



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# File 'lib/quandl/client/models/dataset.rb', line 77

def delete_data
  # cant delete unsaved records
  return false if new_record?
  # delete and return success / failure
  self.class.destroy_existing("#{id}/data").saved?
end

#delete_rows(*dates) ⇒ Object 



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# File 'lib/quandl/client/models/dataset.rb', line 84

def delete_rows(*dates)
  # cant delete unsaved records
  return false if new_record?
  # collect dates
  query = { dates: Array(dates).flatten }.to_query
  # delete and return success / failure
  self.class.destroy_existing("#{id}/data/rows?#{query}").saved?
end

#enforce_required_formats ⇒ Object (protected) 



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# File 'lib/quandl/client/models/dataset.rb', line 118

def enforce_required_formats
  # self.data = Quandl::Data.new(data).to_csv
  self.locations_attributes = locations_attributes.to_json if locations_attributes.respond_to?(:to_json) && !locations_attributes.kind_of?(String)
end

#full_code ⇒ Object 



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# File 'lib/quandl/client/models/dataset.rb', line 63

def full_code
  File.join(self.source_code.to_s, self.code.to_s)
end

#full_url ⇒ Object 



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# File 'lib/quandl/client/models/dataset.rb', line 59

def full_url
  File.join(Quandl::Client::Base.url.gsub('api/', ''), full_code)
end

#reference_url ⇒ Object 



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# File 'lib/quandl/client/models/dataset.rb', line 52

def reference_url
  self.display_url
end

#reference_url=(value) ⇒ Object 



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# File 'lib/quandl/client/models/dataset.rb', line 55

def reference_url=(value)
  self.display_url = value
end

#reload ⇒ Object 



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# File 'lib/quandl/client/models/dataset.rb', line 101

def reload
  @dataset_data = nil
  @data_scope = nil
  @full_code = nil
end

#save_dataset_data ⇒ Object (protected) 



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# File 'lib/quandl/client/models/dataset.rb', line 111

def save_dataset_data
  dataset_data.id = id
  dataset_data.save
  # update dataset's attributes with dataset_data's attributes
  attributes.each{|k,v| attributes[k] = dataset_data.attributes[k] if dataset_data.attributes.has_key?(k) }
end

#source ⇒ Object

ASSOCIATIONS #



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# File 'lib/quandl/client/models/dataset.rb', line 25

def source
  @source ||= Quandl::Client::Source.find(self.source_code)
end