Class: Primer::ViewComponents::FilterableTreeViewItemsController

Inherits:
ApplicationController
  • Object
show all
Defined in:
app/controllers/primer/view_components/filterable_tree_view_items_controller.rb

Overview

:nodoc: :nocov:

Defined Under Namespace

Classes: TreeNode

Constant Summary collapse

TREE = 
[
  branch(
    id: "hogwarts",
    label: "Hogwarts School of Witchcraft and Wizardry",
    children: [
      branch(
        id: "hogwarts-students",
        label: "Students",
        children: [
          branch(
            id: "gryffindor",
            label: "Gryffindor",
            children: [
              leaf(id: "harry-potter",       label: "Harry Potter"),
              leaf(id: "ron-weasley",         label: "Ron Weasley"),
              leaf(id: "hermione-granger",    label: "Hermione Granger"),
              leaf(id: "neville-longbottom",  label: "Neville Longbottom"),
              leaf(id: "ginny-weasley",       label: "Ginny Weasley")
            ]
          ),
          branch(
            id: "slytherin",
            label: "Slytherin",
            children: [
              leaf(id: "draco-malfoy",    label: "Draco Malfoy"),
              leaf(id: "pansy-parkinson", label: "Pansy Parkinson"),
              leaf(id: "blaise-zabini",   label: "Blaise Zabini")
            ]
          ),
          branch(
            id: "ravenclaw",
            label: "Ravenclaw",
            children: [
              leaf(id: "luna-lovegood", label: "Luna Lovegood"),
              leaf(id: "cho-chang",     label: "Cho Chang"),
              leaf(id: "terry-boot",    label: "Terry Boot")
            ]
          ),
          branch(
            id: "hufflepuff",
            label: "Hufflepuff",
            children: [
              leaf(id: "cedric-diggory", label: "Cedric Diggory"),
              leaf(id: "susan-bones",    label: "Susan Bones"),
              leaf(id: "hannah-abbott",  label: "Hannah Abbott")
            ]
          )
        ]
      ),
      branch(
        id: "hogwarts-teachers",
        label: "Teachers",
        children: [
          leaf(id: "albus-dumbledore",  label: "Albus Dumbledore"),
          leaf(id: "minerva-mcgonagall", label: "Minerva McGonagall"),
          leaf(id: "severus-snape",     label: "Severus Snape"),
          leaf(id: "rubeus-hagrid",     label: "Rubeus Hagrid"),
          leaf(id: "remus-lupin",       label: "Remus Lupin"),
          leaf(id: "sybill-trelawney",  label: "Sybill Trelawney")
        ]
      )
    ]
  ),
  branch(
    id: "beauxbatons",
    label: "Beauxbatons Academy of Magic",
    children: [
      branch(
        id: "beauxbatons-students",
        label: "Students",
        children: [
          leaf(id: "fleur-delacour",    label: "Fleur Delacour"),
          leaf(id: "gabrielle-delacour", label: "Gabrielle Delacour"),
          leaf(id: "cecile-fontaine",   label: "Cécile Fontaine")
        ]
      ),
      branch(
        id: "beauxbatons-teachers",
        label: "Teachers",
        children: [
          leaf(id: "olympe-maxime",   label: "Olympe Maxime"),
          leaf(id: "sylvie-beaumont", label: "Sylvie Beaumont")
        ]
      )
    ]
  ),
  branch(
    id: "durmstrang",
    label: "Durmstrang Institute",
    children: [
      branch(
        id: "durmstrang-students",
        label: "Students",
        children: [
          leaf(id: "viktor-krum",      label: "Viktor Krum"),
          leaf(id: "dmitri-poliakoff", label: "Dmitri Poliakoff"),
          leaf(id: "gregor-tarasov",   label: "Gregor Tarasov")
        ]
      ),
      branch(
        id: "durmstrang-teachers",
        label: "Teachers",
        children: [
          leaf(id: "igor-karkaroff", label: "Igor Karkaroff"),
          leaf(id: "fyodor-dolohov", label: "Fyodor Dolohov")
        ]
      )
    ]
  )
].freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.branch(id:, label:, children:) ⇒ Object

Build a branch node, computing all_descendant_ids automatically



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# File 'app/controllers/primer/view_components/filterable_tree_view_items_controller.rb', line 49

def self.branch(id:, label:, children:)
  all_ids = children.flat_map { |c| [c.id] + c.all_descendant_ids }
  TreeNode.new(id: id, label: label, children: children, all_descendant_ids: all_ids)
end

.leaf(id:, label:) ⇒ Object

Build a leaf node



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# File 'app/controllers/primer/view_components/filterable_tree_view_items_controller.rb', line 44

def self.leaf(id:, label:)
  TreeNode.new(id: id, label: label, children: [], all_descendant_ids: [])
end

Instance Method Details

#async_form_tree ⇒ Object 



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# File 'app/controllers/primer/view_components/filterable_tree_view_items_controller.rb', line 177

def async_form_tree
  query = params[:query].to_s.strip
  name = params[:name].to_s.presence || "characters"
  nodes = TREE.filter_map { |node| node.filter(query) }
  builder = ActionView::Helpers::FormBuilder.new("", nil, view_context, {})

  render locals: {
    nodes: nodes,
    query: query,
    name: name,
    builder: builder
  }
end

#index ⇒ Object 



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# File 'app/controllers/primer/view_components/filterable_tree_view_items_controller.rb', line 165

def index
  query = params[:query].to_s.strip
  select_variant = (params[:select_variant].presence || "multiple").to_sym
  nodes = TREE.filter_map { |node| node.filter(query) }

  render locals: {
    nodes: nodes,
    query: query,
    select_variant: select_variant
  }
end