Module: Ricordami::CanBeQueried::ClassMethods

Defined in:
lib/ricordami/can_be_queried.rb

Instance Method Summary collapse

Instance Method Details

#all(opts = {}) ⇒ Object 



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# File 'lib/ricordami/can_be_queried.rb', line 20

def all(opts = {})
  result_key = run_expressions(opts.delete(:expressions) || [])
  get_result_ids(result_key, opts).map do |id|
    self[id]
  end
end

#first(opts = {}) ⇒ Object 



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# File 'lib/ricordami/can_be_queried.rb', line 38

def first(opts = {})
  result_key = run_expressions(opts.delete(:expressions) || [])
  opts[:limit] = [0, 1]
  ids = get_result_ids(result_key, opts)
  self[ids.first]
end

#last(opts = {}) ⇒ Object 



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# File 'lib/ricordami/can_be_queried.rb', line 45

def last(opts = {})
  result_key = run_expressions(opts.delete(:expressions) || [])
  size = redis.scard(result_key)
  opts[:limit] = [size - 1, 1]
  ids = get_result_ids(result_key, opts)
  self[ids.first]
end

#paginate(opts = {}) ⇒ Object 



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# File 'lib/ricordami/can_be_queried.rb', line 27

def paginate(opts = {})
  result_key = run_expressions(opts.delete(:expressions) || [])
  page = opts[:page] || 1
  per_page = opts[:per_page] || 20
  start = (page - 1) * per_page
  opts[:limit] = [start, per_page]
  get_result_ids(result_key, opts).map do |id|
    self[id]
  end
end

#rand(opts = {}) ⇒ Object 



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# File 'lib/ricordami/can_be_queried.rb', line 53

def rand(opts = {})
  result_key = run_expressions(opts.delete(:expressions) || [])
  size = redis.scard(result_key)
  opts[:limit] = [Kernel.rand(size), 1]
  ids = get_result_ids(result_key, opts)
  self[ids.first]
end

#sort(*args) ⇒ Object 



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# File 'lib/ricordami/can_be_queried.rb', line 16

def sort(*args)
  Query.new(self).send(:sort, *args)
end