Module: ContentfulRails::NestedResource::ClassMethods

Defined in:
lib/contentful_rails/nested_resource.rb

Overview

Class methods for NestedResource

Instance Method Summary collapse

Instance Method Details

#get_nested_from_path_by(field, path, opts = {}) ⇒ Object

Get a deeply-nested object from a string which represents the heirarchy. The obvious use for this is to find an object from a URL e.g. /grandparent/parent/child

Parameters:

  • the field to search by - for example, :slug

  • the path as a forward-slash separated string



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# File 'lib/contentful_rails/nested_resource.rb', line 16

def get_nested_from_path_by(field, path, opts = {})
  options = { delimiter: '/', unescape: false, prefix: '' }
  options.merge!(opts)

  path = CGI::unescape(path) if options[:unescape]
  delimiter = options[:delimiter]
  prefix = options[:prefix].empty? ? '' : "#{delimiter}#{options[:prefix]}#{delimiter}"

  root, *children = "#{prefix}#{path}".gsub(%r{/^\//}, '').split(delimiter)

  if field.to_sym == :id
    # we need to call find() to get by ID
    root_entity = find(root)
  else
    begin
      root_entity = search(field => root).first
    rescue Contentful::BadRequest
      # we have something which needs find_by called on it
      root_entity = find_by(field => root).first
    end
  end

  if root_entity && root_entity.has_children?
    root_entity.get_child_entity_from_path_by(field, children)
  elsif root_entity
    root_entity
  end
end