Module: ActsAsVotable::Cacheable

Included in:
Votable
Defined in:
lib/acts_as_votable/cacheable.rb

Instance Method Summary collapse

Instance Method Details

#count_votes_down(skip_cache = false, vote_scope = nil) ⇒ Object 



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# File 'lib/acts_as_votable/cacheable.rb', line 129

def count_votes_down(skip_cache = false, vote_scope = nil)
  from_cache(skip_cache, :cached_votes_down, vote_scope) do
    get_down_votes(vote_scope: vote_scope).count
  end
end

#count_votes_score(skip_cache = false, vote_scope = nil) ⇒ Object 



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# File 'lib/acts_as_votable/cacheable.rb', line 135

def count_votes_score(skip_cache = false, vote_scope = nil)
  from_cache(skip_cache, :cached_votes_score, vote_scope) do
    ups = count_votes_up(true, vote_scope)
    downs = count_votes_down(true, vote_scope)
    ups - downs
  end
end

#count_votes_total(skip_cache = false, vote_scope = nil) ⇒ Object

counting



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# File 'lib/acts_as_votable/cacheable.rb', line 117

def count_votes_total(skip_cache = false, vote_scope = nil)
  from_cache(skip_cache, :cached_votes_total, vote_scope) do
    find_votes_for(scope_or_empty_hash(vote_scope)).count
  end
end

#count_votes_up(skip_cache = false, vote_scope = nil) ⇒ Object 



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# File 'lib/acts_as_votable/cacheable.rb', line 123

def count_votes_up(skip_cache = false, vote_scope = nil)
  from_cache(skip_cache, :cached_votes_up, vote_scope) do
    get_up_votes(vote_scope: vote_scope).count
  end
end

#scope_cache_field(field, vote_scope) ⇒ Object 



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# File 'lib/acts_as_votable/cacheable.rb', line 5

def scope_cache_field(field, vote_scope)
  return field if vote_scope.nil?

  case field
  when :cached_votes_total=
    "cached_scoped_#{vote_scope}_votes_total="
  when :cached_votes_total
    "cached_scoped_#{vote_scope}_votes_total"
  when :cached_votes_up=
    "cached_scoped_#{vote_scope}_votes_up="
  when :cached_votes_up
    "cached_scoped_#{vote_scope}_votes_up"
  when :cached_votes_down=
    "cached_scoped_#{vote_scope}_votes_down="
  when :cached_votes_down
    "cached_scoped_#{vote_scope}_votes_down"
  when :cached_votes_score=
    "cached_scoped_#{vote_scope}_votes_score="
  when :cached_votes_score
    "cached_scoped_#{vote_scope}_votes_score"
  when :cached_weighted_total
    "cached_weighted_#{vote_scope}_total"
  when :cached_weighted_total=
    "cached_weighted_#{vote_scope}_total="
  when :cached_weighted_score
    "cached_weighted_#{vote_scope}_score"
  when :cached_weighted_score=
    "cached_weighted_#{vote_scope}_score="
  when :cached_weighted_average
    "cached_weighted_#{vote_scope}_average"
  when :cached_weighted_average=
    "cached_weighted_#{vote_scope}_average="
  end
end

#update_cached_votes(vote_scope = nil) ⇒ Object 



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# File 'lib/acts_as_votable/cacheable.rb', line 40

def update_cached_votes(vote_scope = nil)
  updates = {}

  if self.respond_to?(:cached_votes_up=)
    updates[:cached_votes_up] = count_votes_up(true)
  end

  if self.respond_to?(:cached_votes_down=)
    updates[:cached_votes_down] = count_votes_down(true)
  end

  if self.respond_to?(:cached_votes_total=)
    updates[:cached_votes_total] = (
      (updates[:cached_votes_up] || count_votes_up(true)) +
      (updates[:cached_votes_down] || count_votes_down(true))
    )
  end

  if self.respond_to?(:cached_votes_score=)
    updates[:cached_votes_score] = (
      (updates[:cached_votes_up] || count_votes_up(true)) -
      (updates[:cached_votes_down] || count_votes_down(true))
    )
  end

  if self.respond_to?(:cached_weighted_total=)
    updates[:cached_weighted_total] = weighted_total(true)
  end

  if self.respond_to?(:cached_weighted_score=)
    updates[:cached_weighted_score] = weighted_score(true)
  end

  if self.respond_to?(:cached_weighted_average=)
    updates[:cached_weighted_average] = weighted_average(true)
  end

  if vote_scope
    if self.respond_to?(scope_cache_field :cached_votes_up=, vote_scope)
      updates[scope_cache_field :cached_votes_up, vote_scope] = count_votes_up(true, vote_scope)
    end

    if self.respond_to?(scope_cache_field :cached_votes_down=, vote_scope)
      updates[scope_cache_field :cached_votes_down, vote_scope] = count_votes_down(true, vote_scope)
    end

    if self.respond_to?(scope_cache_field :cached_votes_total=, vote_scope)
      updates[scope_cache_field :cached_votes_total, vote_scope] = (
        (updates[scope_cache_field :cached_votes_up, vote_scope] || count_votes_up(true, vote_scope)) +
        (updates[scope_cache_field :cached_votes_down, vote_scope] || count_votes_down(true, vote_scope))
      )
    end

    if self.respond_to?(scope_cache_field :cached_weighted_total=, vote_scope)
      updates[scope_cache_field :cached_weighted_total, vote_scope] = weighted_total(true, vote_scope)
    end

    if self.respond_to?(scope_cache_field :cached_weighted_score=, vote_scope)
      updates[scope_cache_field :cached_weighted_score, vote_scope] = weighted_score(true, vote_scope)
    end

    if self.respond_to?(scope_cache_field :cached_votes_score=, vote_scope)
      updates[scope_cache_field :cached_votes_score, vote_scope] = (
        (updates[scope_cache_field :cached_votes_up, vote_scope] || count_votes_up(true, vote_scope)) -
        (updates[scope_cache_field :cached_votes_down, vote_scope] || count_votes_down(true, vote_scope))
      )
    end

    if self.respond_to?(scope_cache_field :cached_weighted_average=, vote_scope)
      updates[scope_cache_field :cached_weighted_average, vote_scope] = weighted_average(true, vote_scope)
    end
  end

  self.send(acts_as_votable_options[:cacheable_strategy], updates) if updates.size > 0
end

#weighted_average(skip_cache = false, vote_scope = nil) ⇒ Object 



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# File 'lib/acts_as_votable/cacheable.rb', line 157

def weighted_average(skip_cache = false, vote_scope = nil)
  from_cache(skip_cache, :cached_weighted_average, vote_scope) do
    count = count_votes_total(skip_cache, vote_scope).to_i
    if count > 0
      weighted_score(skip_cache, vote_scope).to_f / count
    else
      0.0
    end
  end
end

#weighted_score(skip_cache = false, vote_scope = nil) ⇒ Object 



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# File 'lib/acts_as_votable/cacheable.rb', line 149

def weighted_score(skip_cache = false, vote_scope = nil)
  from_cache(skip_cache, :cached_weighted_score, vote_scope) do
    ups = get_up_votes(vote_scope: vote_scope).sum(:vote_weight)
    downs = get_down_votes(vote_scope: vote_scope).sum(:vote_weight)
    ups - downs
  end
end

#weighted_total(skip_cache = false, vote_scope = nil) ⇒ Object 



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# File 'lib/acts_as_votable/cacheable.rb', line 143

def weighted_total(skip_cache = false, vote_scope = nil)
  from_cache(skip_cache, :cached_weighted_total, vote_scope) do
    find_votes_for(scope_or_empty_hash(vote_scope)).sum(:vote_weight)
  end
end