Class: Hikki::Adapters::RedisCollection

Inherits:
Collection
  • Object
show all
Defined in:
lib/hikki/adapters/redis_collection.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(collection, connection, uuid_generator) ⇒ RedisCollection

Returns a new instance of RedisCollection.



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# File 'lib/hikki/adapters/redis_collection.rb', line 6

def initialize(collection, connection, uuid_generator)
  super(collection)
  @connection = connection
  @uuid_generator = uuid_generator
end

Instance Attribute Details

#connection ⇒ Object (readonly)

Returns the value of attribute connection.



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# File 'lib/hikki/adapters/redis_collection.rb', line 4

def connection
  @connection
end

#uuid_generator ⇒ Object (readonly)

Returns the value of attribute uuid_generator.



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# File 'lib/hikki/adapters/redis_collection.rb', line 4

def uuid_generator
  @uuid_generator
end

Instance Method Details

#all(options = {}) ⇒ Object 



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# File 'lib/hikki/adapters/redis_collection.rb', line 28

def all(options={})
  options = normalize_options(options)
  connection.hvals(collection_key)[page_range(options)].map { |j| JSON.parse(j) }
end

#find(id) ⇒ Object 



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# File 'lib/hikki/adapters/redis_collection.rb', line 24

def find(id)
  JSON.parse(connection.hget(collection_key, id.to_s) || '{}')
end

#find_by(field, value, options = {}) ⇒ Object 



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# File 'lib/hikki/adapters/redis_collection.rb', line 33

def find_by(field, value, options={})
  options = normalize_options(options)
  return find_by_index(field, value, options) if has_index?(field)
  all.select { |o| o.fetch(field.to_s) == value }[page_range(options)]
end

#has_index?(field) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hikki/adapters/redis_collection.rb', line 51

def has_index?(field)
  connection.sismember collection_indexes_key, field.to_s
end

#id_for(data) ⇒ Object 



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# File 'lib/hikki/adapters/redis_collection.rb', line 59

def id_for(data)
  data.fetch('id', uuid_generator.uuid).to_s
end

#index(field) ⇒ Object 



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# File 'lib/hikki/adapters/redis_collection.rb', line 12

def index(field)
  connection.sadd collection_indexes_key, field.to_s
  true
end

#indexes ⇒ Object 



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# File 'lib/hikki/adapters/redis_collection.rb', line 55

def indexes
  connection.smembers collection_indexes_key
end

#remove(id) ⇒ Object 



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# File 'lib/hikki/adapters/redis_collection.rb', line 39

def remove(id)
  remove_from_index(find(id))
  connection.hdel collection_key, id.to_s
  true
end

#remove_all ⇒ Object 



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# File 'lib/hikki/adapters/redis_collection.rb', line 45

def remove_all
  indexes.each { |field| connection.del collection_index_key(field) }
  connection.del collection_indexes_key
  connection.del collection_key
end

#save(data) ⇒ Object 



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# File 'lib/hikki/adapters/redis_collection.rb', line 17

def save(data)
  data = normalize_data(data)
  connection.hset collection_key, data['id'], data.to_json
  add_to_index(data)
  data
end