Class: Lt::Lcms::Metadata::Context

Inherits:
Object
  • Object
show all
Defined in:
lib/lt/lcms/metadata/context.rb

Constant Summary collapse

NUM_RE = 
/\d+/.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(context = {}) ⇒ Context

Returns a new instance of Context.



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# File 'lib/lt/lcms/metadata/context.rb', line 54

def initialize(context = {})
  @context = context.with_indifferent_access
end

Instance Attribute Details

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/lt/lcms/metadata/context.rb', line 10

def context
  @context
end

Class Method Details

.update_grades_level_position_for(grades) ⇒ Object

Fix level position for grades Is used inside ‘#find_or_create_resource` method



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# File 'lib/lt/lcms/metadata/context.rb', line 19

def update_grades_level_position_for(grades)
  update_level_position_for(grades) { |g| ::Lcms::Engine::Grades.grades.index(g.metadata['grade']) }
end

.update_level_position_for(resources) ⇒ Object

Fix level position for in case when lower curriculum elements have been created after higher ones: Grade 8 was created before Grade 7



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# File 'lib/lt/lcms/metadata/context.rb', line 44

def update_level_position_for(resources)
  resources
    .map { |m| { id: m.id, idx: yield(m) } }
    .sort_by { |a| a[:idx] }.each_with_index do |data, idx|
      resource = ::Lcms::Engine::Resource.find(data[:id])
      resource.update_columns(level_position: idx) unless resource.level_position == idx
    end
end

.update_modules_level_position_for(modules) ⇒ Object

Fix level position for modules Is used inside ‘#find_or_create_resource` method



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# File 'lib/lt/lcms/metadata/context.rb', line 27

def update_modules_level_position_for(modules)
  indexes = modules.map(&:short_title).sort_by { |g| g.to_s[NUM_RE].to_i }
  update_level_position_for(modules) { |m| indexes.index(m.metadata['module']) }
end

.update_units_level_position_for(units) ⇒ Object

Fix level position for units Is used inside ‘#find_or_create_resource` method



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# File 'lib/lt/lcms/metadata/context.rb', line 36

def update_units_level_position_for(units)
  update_level_position_for(units) { |u| u.metadata['unit'][NUM_RE].to_i }
end

Instance Method Details

#directory ⇒ Object 



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# File 'lib/lt/lcms/metadata/context.rb', line 58

def directory
  @directory ||= [subject, grade, mod, unit, lesson].select(&:present?)
end

#find_or_create_resource ⇒ Object 



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# File 'lib/lt/lcms/metadata/context.rb', line 73

def find_or_create_resource
  # rubocop:disable Metrics/BlockLength
  ::Lcms::Engine::Resource.with_advisory_lock('find_or_create_resource') do
    # if the resource exists, return it
    resource = ::Lcms::Engine::Resource.tree.find_by_directory(directory)
    return update(resource) if resource

    # else, build missing parents until we build the resource itself.
    parent = nil
    directory.each_with_index do |name, index|
      resource = ::Lcms::Engine::Resource.tree.find_by_directory(directory[0..index])
      if resource
        parent = resource
        next
      end

      resource = build_new_resource(parent, name, index)
      unless last_item?(index)
        resource.save!
        unless resource.subject?
          self.class.send("update_#{resource.curriculum_type}s_level_position_for", resource.self_and_siblings)
        end
        parent = resource
        next
      end

      if mid_assessment?
        set_mid_assessment_position(parent, resource)
      elsif prerequisite?
        set_prerequisite_position(parent, resource)
      elsif opr?
        set_opr_position(parent, resource)
      else
        set_lesson_position(parent, resource)
      end
    end

    update resource
  end
  # rubocop:enable Metrics/BlockLength
end

#metadata ⇒ Object 



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# File 'lib/lt/lcms/metadata/context.rb', line 62

def metadata
  @metadata ||= {
    'subject' => subject,
    'grade' => grade,
    'module' => mod,
    'unit' => unit,
    'lesson' => lesson,
    'assessment' => (type if assessment?)
  }.compact.stringify_keys
end