Class: Flipper::Adapters::Mongo

Inherits:
Object
  • Object
show all
Includes:
Flipper::Adapter
Defined in:
lib/flipper/adapters/mongo.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(collection) ⇒ Mongo

Returns a new instance of Mongo.



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# File 'lib/flipper/adapters/mongo.rb', line 13

def initialize(collection)
  @collection = collection
  @features_key = :flipper_features
end

Instance Attribute Details

#collection ⇒ Object (readonly)

Public: The name of the collection storing the feature data.



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# File 'lib/flipper/adapters/mongo.rb', line 11

def collection
  @collection
end

Instance Method Details

#add(feature) ⇒ Object

Public: Adds a feature to the set of known features.



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# File 'lib/flipper/adapters/mongo.rb', line 24

def add(feature)
  update @features_key, '$addToSet' => { 'features' => feature.key }
  true
end

#clear(feature) ⇒ Object

Public: Clears all the gate values for a feature.



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# File 'lib/flipper/adapters/mongo.rb', line 37

def clear(feature)
  delete feature.key
  true
end

#disable(feature, gate, thing) ⇒ Object

Public: Disables a gate for a given thing.

feature - The Flipper::Feature for the gate. gate - The Flipper::Gate to disable. thing - The Flipper::Type being disabled for the gate.

Returns true.



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# File 'lib/flipper/adapters/mongo.rb', line 99

def disable(feature, gate, thing)
  case gate.data_type
  when :boolean
    delete feature.key
  when :integer
    update feature.key, '$set' => {
      gate.key.to_s => thing.value.to_s,
    }
  when :set
    update feature.key, '$pull' => {
      gate.key.to_s => thing.value.to_s,
    }
  when :json
    update feature.key, '$set' => {
      gate.key.to_s => nil,
    }
  else
    unsupported_data_type gate.data_type
  end

  true
end

#enable(feature, gate, thing) ⇒ Object

Public: Enables a gate for a given thing.

feature - The Flipper::Feature for the gate. gate - The Flipper::Gate to enable. thing - The Flipper::Type being enabled for the gate.

Returns true.



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# File 'lib/flipper/adapters/mongo.rb', line 66

def enable(feature, gate, thing)
  case gate.data_type
  when :boolean
    clear(feature)
    update feature.key, '$set' => {
      gate.key.to_s => thing.value.to_s,
    }
  when :integer
    update feature.key, '$set' => {
      gate.key.to_s => thing.value.to_s,
    }
  when :set
    update feature.key, '$addToSet' => {
      gate.key.to_s => thing.value.to_s,
    }
  when :json
    update feature.key, '$set' => {
      gate.key.to_s => Typecast.to_json(thing.value),
    }
  else
    unsupported_data_type gate.data_type
  end

  true
end

#features ⇒ Object

Public: The set of known features.



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# File 'lib/flipper/adapters/mongo.rb', line 19

def features
  read_feature_keys
end

#get(feature) ⇒ Object

Public: Gets the values for all gates for a given feature.

Returns a Hash of Flipper::Gate#key => value.



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# File 'lib/flipper/adapters/mongo.rb', line 45

def get(feature)
  doc = find(feature.key)
  result_for_feature(feature, doc)
end

#get_all ⇒ Object 



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# File 'lib/flipper/adapters/mongo.rb', line 54

def get_all
  features = read_feature_keys.map { |key| Flipper::Feature.new(key, self) }
  read_many_features(features)
end

#get_multi(features) ⇒ Object 



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# File 'lib/flipper/adapters/mongo.rb', line 50

def get_multi(features)
  read_many_features(features)
end

#remove(feature) ⇒ Object

Public: Removes a feature from the set of known features.



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# File 'lib/flipper/adapters/mongo.rb', line 30

def remove(feature)
  update @features_key, '$pull' => { 'features' => feature.key }
  clear feature
  true
end