Class: Decidim::ActionLog

Inherits:
ApplicationRecord show all
Includes:
ScopableParticipatorySpace
Defined in:
app/models/decidim/action_log.rb

Overview

This class represents an action of a user on a resource. It is used for transparency reasons, to log all actions so all other users can see the actions being performed.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.for_admin ⇒ Object

A scope that filters all the logs that should be visible at the admin panel.



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# File 'app/models/decidim/action_log.rb', line 126

def self.for_admin
  where(visibility: %w(admin-only all))
end

.lazy_relation(id_method, klass_name, cache) ⇒ Object

Returns a Batchloader for a given class to avoid N+1 queries.

Since ActionLogs are related to many different resources, loading a collection of them would trigger a lot of N+1 queries. We are using BatchLoader to accumulate and group all the resource by their class and only loading them when it is necessary.



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# File 'app/models/decidim/action_log.rb', line 237

def self.lazy_relation(id_method, klass_name, cache)
  klass = klass_name.constantize
  BatchLoader.for(id_method).batch(cache:, key: klass.name.underscore) do |relation_ids, loader|
    scope = klass.where(id: relation_ids)

    scope = if klass.include?(Decidim::HasComponent)
              scope.where(id: relation_ids).includes(:component).where.not(decidim_components: { published_at: nil })
            elsif klass.reflect_on_association(:organization)
              scope.where(id: relation_ids).includes(:organization)
            elsif klass_name == "Decidim::Comments::Comment"
              scope.where(id: relation_ids).includes([:moderation, :root_commentable, :user_group])
            else
              scope
            end

    scope = scope.published if klass.include?(Decidim::Publicable)

    scope.each { |relation| loader.call(relation.id, relation) }
  end
end

.private_resource_types ⇒ Object 



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# File 'app/models/decidim/action_log.rb', line 149

def self.private_resource_types
  @private_resource_types ||= %w(
    Decidim::Budgets::Order
  ).select do |klass|
    klass.safe_constantize.present?
  end
end

.public_resource_types ⇒ Object

All the resource types that are eligible to be included as an activity.



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# File 'app/models/decidim/action_log.rb', line 131

def self.public_resource_types
  @public_resource_types ||= %w(
    Decidim::Accountability::Result
    Decidim::Blogs::Post
    Decidim::Comments::Comment
    Decidim::Debates::Debate
    Decidim::Meetings::Meeting
    Decidim::Proposals::Proposal
    Decidim::Surveys::Survey
    Decidim::Assembly
    Decidim::Conference
    Decidim::Initiative
    Decidim::ParticipatoryProcess
  ).select do |klass|
    klass.safe_constantize.present?
  end
end

.publicable_exceptions ⇒ Object 



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# File 'app/models/decidim/action_log.rb', line 162

def self.publicable_exceptions
  @publicable_exceptions = %w(
    Decidim::Blogs::Post
  ).select do |klass|
    klass.safe_constantize.present?
  end
end

.publicable_public_resource_types ⇒ Object 



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# File 'app/models/decidim/action_log.rb', line 157

def self.publicable_public_resource_types
  @publicable_public_resource_types ||= public_resource_types
                                        .select { |klass| klass.constantize.column_names.include?("published_at") } - publicable_exceptions
end

.ransackable_scopes(auth_object = nil) ⇒ Object 



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# File 'app/models/decidim/action_log.rb', line 170

def self.ransackable_scopes(auth_object = nil)
  base = [:with_resource_type]
  return base unless auth_object&.admin?

  # Add extra scopes for admins for the admin panel searches
  base + [:with_participatory_space]
end

Instance Method Details

#component_lazy(cache: true) ⇒ Object

Lazy loads the ‘component` association through BatchLoader, can be used as a regular object.



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# File 'app/models/decidim/action_log.rb', line 187

def component_lazy(cache: true)
  self.class.lazy_relation(decidim_component_id, "Decidim::Component", cache)
end

#log_presenter_class_for(log_type) ⇒ Object

Public: Finds the correct presenter class for the given ‘log_type` and the related `resource_type`. If no specific presenter can be found, it falls back to `Decidim::Log::BasePresenter`

log_type - a Symbol representing the log

Returns a Class.



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# File 'app/models/decidim/action_log.rb', line 225

def log_presenter_class_for(log_type)
  resource_type.constantize.log_presenter_class_for(log_type)
rescue NameError
  Decidim::Log::BasePresenter
end

#organization_lazy(cache: true) ⇒ Object

Lazy loads the ‘organization` association through BatchLoader, can be used as a regular object.



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# File 'app/models/decidim/action_log.rb', line 193

def organization_lazy(cache: true)
  self.class.lazy_relation(decidim_organization_id, "Decidim::Organization", cache)
end

#participatory_space_lazy(cache: true) ⇒ Object

Lazy loads the ‘participatory_space` association through BatchLoader, can be used as a regular object.



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# File 'app/models/decidim/action_log.rb', line 205

def participatory_space_lazy(cache: true)
  return if participatory_space_id.blank? || participatory_space_type.blank?
  return resource_lazy if participatory_space_id == resource_id && participatory_space_type == resource_type

  self.class.lazy_relation(participatory_space_id, participatory_space_type, cache)
end

#readonly? ⇒ Boolean

Overwrites the method so that records cannot be modified.

Returns a Boolean.

Returns:

  • (Boolean) 


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# File 'app/models/decidim/action_log.rb', line 181

def readonly?
  !new_record?
end

#resource_lazy(cache: true) ⇒ Object

Lazy loads the ‘resource` association through BatchLoader, can be used as a regular object.



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# File 'app/models/decidim/action_log.rb', line 214

def resource_lazy(cache: true)
  self.class.lazy_relation(resource_id, resource_type, cache)
end

#user_lazy(cache: true) ⇒ Object

Lazy loads the ‘user` association through BatchLoader, can be used as a regular object.



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# File 'app/models/decidim/action_log.rb', line 199

def user_lazy(cache: true)
  self.class.lazy_relation(decidim_user_id, "Decidim::User", cache)
end

#visible_for?(user) ⇒ Boolean

Whether this activity or log is visible for a given user (can also be nil)

Returns:

  • (Boolean) 


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# File 'app/models/decidim/action_log.rb', line 259

def visible_for?(user)
  resource_lazy.present? &&
    participatory_space_lazy.present? &&
    !resource_lazy.try(:deleted?) &&
    !resource_lazy.try(:hidden?) &&
    (participatory_space_lazy.try(:is_transparent?) || !resource_lazy.respond_to?(:can_participate?) || resource_lazy.try(:can_participate?, user))
rescue NameError => e
  Rails.logger.warn "Failed resource for #{self.class.name}(id=#{id}): #{e.message}"

  false
end