Class: Dokno::Category

Inherits:
ApplicationRecord show all
Defined in:
app/models/dokno/category.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.branch(parent_category_id:, at_top: true) ⇒ Object

The given Category and all child Categories. Useful for filtering associated articles.



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# File 'app/models/dokno/category.rb', line 53

def self.branch(parent_category_id:, at_top: true)
  return if parent_category_id.blank?

  categories = []
  parent_category = find(parent_category_id)
  child_categories = parent_category.children.to_a

  child_categories.each do |child_category|
    categories << child_category << branch(parent_category_id: child_category.id, at_top: false)
  end

  categories.prepend parent_category if at_top
  categories.flatten
end

.cache_key ⇒ Object

Used to invalidate the fragment cache of the hierarchical category select options



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# File 'app/models/dokno/category.rb', line 48

def self.cache_key
  [maximum(:updated_at), Article.maximum(:updated_at)].compact.max
end

.select_option_markup(selected_category_codes: nil, context_category: nil, level: 0) ⇒ Object 



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# File 'app/models/dokno/category.rb', line 68

def self.select_option_markup(selected_category_codes: nil, context_category: nil, level: 0)
  return '' if level.positive? && context_category.blank?

  options = []
  level_categories = where(category_id: context_category&.id).alpha_order
  level_categories.each do |category|
    options << option_markup(category: category, selected_category_codes: selected_category_codes, level: level)
    options << select_option_markup(selected_category_codes: selected_category_codes, context_category: category, level: (level + 1))
  end

  options.join
end

Instance Method Details

#articles_in_branch(order: :updated) ⇒ Object

All Articles in the Category, including all child Categories



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# File 'app/models/dokno/category.rb', line 34

def articles_in_branch(order: :updated)
  records = Article
    .includes(:categories_dokno_articles, :categories)
    .joins(:categories)
    .where(dokno_categories: { id: self.class.branch(parent_category_id: id).pluck(:id) })

  Article.apply_sort(records, order: order)
end

#branch ⇒ Object 



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# File 'app/models/dokno/category.rb', line 43

def branch
  self.class.branch(parent_category_id: id)
end

#breadcrumb(**args) ⇒ Object 



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# File 'app/models/dokno/category.rb', line 14

def breadcrumb(**args)
  crumbs = [(category_link(self, args) unless args[:hide_self])]
  parent_category_id = category_id

  loop do
    break if parent_category_id.blank?

    parent_category = Category.find(parent_category_id)
    crumbs.prepend category_link(parent_category, args)
    parent_category_id = parent_category.category_id
  end

  crumbs.compact.join("&nbsp;&nbsp;>&nbsp;&nbsp;").html_safe
end

#category_link(category, args = {}) ⇒ Object 



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# File 'app/models/dokno/category.rb', line 29

def category_link(category, args={})
  %(<a href="#{article_index_path(category.code)}?search_term=#{CGI.escape(args[:search_term].to_s)}&order=#{CGI.escape(args[:order].to_s)}">#{category.name}</a>)
end