Module: Trees::ClassMethods

Defined in:
backend/app/model/mixins/trees.rb

Instance Method Summary collapse

Instance Method Details

#assemble_tree(node, links, properties) ⇒ Object 



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# File 'backend/app/model/mixins/trees.rb', line 424

def assemble_tree(node, links, properties)
  result = properties[node].clone

  if !result.has_key?('has_children')
    result['has_children'] = !!links[node]
  end

  if links[node]
    result['children'] = links[node].sort_by(&:first).map do |position, child_id|
      assemble_tree(child_id, links, properties)
    end
  else
    result['children'] = []
  end

  result
end

#calculate_object_graph(object_graph, opts = {}) ⇒ Object 



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# File 'backend/app/model/mixins/trees.rb', line 454

def calculate_object_graph(object_graph, opts = {})
  object_graph.each do |model, id_list|
    next if self != model

    ids = node_model.any_repo.filter(:root_record_id => id_list).
                     select(:id).map {|row|
      row[:id]
    }

    object_graph.add_objects(node_model, ids)
  end

  super
end

#node_model ⇒ Object 



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# File 'backend/app/model/mixins/trees.rb', line 419

def node_model
  Kernel.const_get(node_type.to_s.camelize)
end

#node_type ⇒ Object 



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# File 'backend/app/model/mixins/trees.rb', line 414

def node_type
  @node_type
end

#ordered_record_properties(record_ids) ⇒ Object

Default: to be overriden by implementing models



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# File 'backend/app/model/mixins/trees.rb', line 470

def ordered_record_properties(record_ids)
  {}
end

#root_type ⇒ Object 



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# File 'backend/app/model/mixins/trees.rb', line 409

def root_type
  @root_type
end

#sequel_to_jsonmodel(objs, opts = {}) ⇒ Object 



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# File 'backend/app/model/mixins/trees.rb', line 443

def sequel_to_jsonmodel(objs, opts = {})
  jsons = super

  jsons.zip(objs).each do |json, obj|
    json['tree'] = {'ref' => obj.uri + '/tree'}
  end

  jsons
end

#tree_of(root_type, node_type) ⇒ Object 



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# File 'backend/app/model/mixins/trees.rb', line 403

def tree_of(root_type, node_type)
  @root_type = root_type
  @node_type = node_type
end