class Decidim::ComponentManifest

This class handles all the logic associated to configuring a component associated to a participatory process.

It's normally not used directly but through the API exposed through `Decidim.register_component`.

Public Instance Methods

component_form_class() click to toggle source

Public: Finds the form class from its component, using the `component_form_class_name` attribute. If the class does not exist, it raises an exception. If the class name is not set, it returns nil.

Returns a Class.

# File lib/decidim/component_manifest.rb, line 245
def component_form_class
  component_form_class_name&.constantize
end
export_manifests() click to toggle source

Pubic: Returns a collection of previously registered export manifests for this component.

Returns an Array<Decidim::Exporters::ExportManifest>.

# File lib/decidim/component_manifest.rb, line 185
def export_manifests
  @export_manifests ||= Array(@exports).map do |(name, block)|
    Decidim::Exporters::ExportManifest.new(name, self).tap do |manifest|
      block.call(manifest)
    end
  end
end
exports(name, &block) click to toggle source

Public: Registers an export artifact with a name and its properties defined in `Decidim::Exporters::ExportManifest`.

Export artifacts provide an unified way for components to register exportable collections serialized via a `Serializer` that eventually are transformed to their formats.

name - The name of the artifact. Should be unique in the context of

the component.

block - A block that receives the manifest as its only argument.

Returns nothing.

# File lib/decidim/component_manifest.rb, line 173
def exports(name, &block)
  return unless name

  @exports ||= []
  @exports << [name, block]
  @export_manifests = nil
end
import_manifests() click to toggle source
# File lib/decidim/component_manifest.rb, line 201
def import_manifests
  @import_manifests ||= Array(@imports).map do |(name, block)|
    Decidim::Importers::ImportManifest.new(name, self).tap do |manifest|
      block.call(manifest)
    end
  end
end
imports(name, &block) click to toggle source
# File lib/decidim/component_manifest.rb, line 193
def imports(name, &block)
  return unless name

  @imports ||= []
  @imports << [name, block]
  @import_manifests = nil
end
on(event_name, &block) click to toggle source

Public: Registers a hook to this manifest. Hooks get fired when some lifecycle events happen, like the creation of a component or its destruction.

event_name - A String or Symbol with the event name. &block - The block to run when the hook gets triggered.

Returns nothing.

# File lib/decidim/component_manifest.rb, line 96
def on(event_name, &block)
  hooks[event_name.to_sym] ||= []
  hooks[event_name.to_sym] << block
end
permissions_class() click to toggle source

Public: Finds the permission class from its name, using the `permissions_class_name` attribute. If the class does not exist, it raises an exception. If the class name is not set, it returns nil.

Returns a Class.

# File lib/decidim/component_manifest.rb, line 236
def permissions_class
  permissions_class_name&.constantize
end
register_resource(name) { |resource| ... } click to toggle source

Public: Registers a resource. Exposes a DSL defined by `Decidim::ResourceManifest`. Automatically sets the component manifest for that resource to the current one.

Resource manifests are a way to expose a resource from one engine to the whole system. This way resources can be linked between them.

name - A name for that resource. Should be singular (ie not plural). block - A Block that will be called to set the Resource attributes.

Returns nothing.

# File lib/decidim/component_manifest.rb, line 278
def register_resource(name)
  my_component_manifest = self

  my_block = proc do |resource|
    resource.component_manifest = my_component_manifest
    yield(resource)
  end

  Decidim.register_resource(name, &my_block)
end
register_stat(name, options = {}, &block) click to toggle source

Public: Registers a stat inside a component manifest.

name - The name of the stat options - A hash of options

* primary: Whether the stat is primary or not.
* priority: The priority of the stat used for render issues.

block - A block that receive the components to filter out the stat.

Returns nothing.

# File lib/decidim/component_manifest.rb, line 227
def register_stat(name, options = {}, &block)
  stats.register(name, options, &block)
end
reset_hooks!() click to toggle source

Semiprivate: Resets all the hooks of this manifest. Mostly useful when testing.

Returns nothing.

# File lib/decidim/component_manifest.rb, line 121
def reset_hooks!
  self.hooks = {}
end
run_hooks(event_name, context = nil) click to toggle source

Public: Runs all the hooks associated with this manifest and a particular event.

event_name - A String or Symbol with the event name. context - An optional context that will be provided to the block as a

parameter. Usually the subject of the hook.

Returns nothing.

# File lib/decidim/component_manifest.rb, line 109
def run_hooks(event_name, context = nil)
  return unless hooks[event_name]

  hooks[event_name.to_sym].map do |hook|
    hook.call(context)
  end
end
seed!(participatory_space) click to toggle source

Public: Creates the seeds for this components in order to populate the database.

Returns nothing.

# File lib/decidim/component_manifest.rb, line 135
def seed!(participatory_space)
  print "-- Creating #{name} component seeds for the participatory space with ID: #{participatory_space.id}...\n" unless Rails.env.test?
  @seeds&.call(participatory_space)
end
seeds(&block) click to toggle source

Public: A block that gets called when seeding for this component takes place.

Returns nothing.

# File lib/decidim/component_manifest.rb, line 128
def seeds(&block)
  @seeds = block
end
serializes_specific_data?() click to toggle source
# File lib/decidim/component_manifest.rb, line 209
def serializes_specific_data?
  serializes_specific_data
end
settings(name = :global) { |settings| ... } click to toggle source

Public: Adds configurable attributes for this component, scoped to a name. It uses the DSL specified under `Decidim::SettingsManifest`.

name - Either `global` or `step` &block - The DSL present on `Decidim::SettingsManifest`

Examples:

component.settings(:global) do |settings|
  settings.attribute :voting_enabled, type: :boolean, default: true
end

Returns nothing.

# File lib/decidim/component_manifest.rb, line 153
def settings(name = :global, &block)
  @settings ||= {}
  name = name.to_sym
  settings = (@settings[name] ||= SettingsManifest.new)
  yield(settings) if block
  settings
end
specific_data_importer_class() click to toggle source

Public: Finds the specific data importer class from its name, using the `specific_data_importerer_class_name` attribute. If the class does not exist, it raises an exception. If the class name is not set, it returns nil.

Returns a Decidim::Importers::Importer subclass or nil.

# File lib/decidim/component_manifest.rb, line 263
def specific_data_importer_class
  specific_data_importer_class_name&.constantize
end
specific_data_serializer_class() click to toggle source

Public: Finds the specific data serializer class from its name, using the `specific_data_serializer_class_name` attribute. If the class does not exist, it raises an exception. If the class name is not set, it returns nil.

Returns a Decidim::Exporters::Serializer subclass or nil.

# File lib/decidim/component_manifest.rb, line 254
def specific_data_serializer_class
  specific_data_serializer_class_name&.constantize
end
stats() click to toggle source

Public: Stores an instance of StatsRegistry

# File lib/decidim/component_manifest.rb, line 214
def stats
  @stats ||= StatsRegistry.new
end