2018-01-29 22:19:10 +00:00
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# frozen_string_literal: true
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require 'jekyll/utils'
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# Esta clase representa un post en un sitio jekyll e incluye métodos
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# para modificarlos y crear nuevos
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2018-02-03 22:37:09 +00:00
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#
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# Cuando estamos editando un post, instanciamos este modelo y le
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# asociamos el Jekyll::Document correspondiente.
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#
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# Cuando estamos creando un post, no creamos su Jekyll::Document
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# hasta que se guardan los datos, porque para poder guardarlo
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# necesitamos su front_matter completo.
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#
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# El front matter está duplicado. El Post mantiene una copia de los
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# datos y los sincroniza al momento de leer y de escribir el Document.
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2018-01-29 22:19:10 +00:00
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class Post
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attr_accessor :content, :front_matter
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2018-05-11 20:00:45 +00:00
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attr_reader :post, :site, :errors, :old_post, :lang, :template,
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:template_fields
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2018-01-29 22:19:10 +00:00
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2018-02-03 22:37:09 +00:00
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REJECT_FROM_DATA = %w[excerpt].freeze
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# datos que no tienen que terminar en el front matter
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REJECT_FROM_FRONT_MATTER = %w[date slug draft ext].freeze
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2018-05-11 20:00:45 +00:00
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# datos que no traemos del template
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2018-06-25 20:44:47 +00:00
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REJECT_FROM_TEMPLATE = %w[has_content date draft categories layout title ext tags date slug].freeze
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2018-06-21 18:15:03 +00:00
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DEFAULT_PARAMS = [:title, :date, :content, :slug, :cover,
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:layout, :permalink, :dir,
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{ lang: {} }, { tags: [] }, { categories: [] }]
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2018-01-29 22:19:10 +00:00
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# Trabajar con posts. Si estamos creando uno nuevo, el **site** y
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# el **front_matter** son necesarios, sino, **site** y **post**.
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# XXX chequear que se den las condiciones
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2018-05-08 21:57:11 +00:00
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def initialize(site:, post: nil, front_matter: {}, lang: nil, template: nil)
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2018-02-03 22:37:09 +00:00
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unless site.is_a?(Site)
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raise ArgumentError,
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I18n.t('errors.argument_error', argument: :site, class: Site)
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end
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unless post.nil? || post.is_a?(Jekyll::Document)
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raise ArgumentError,
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I18n.t('errors.argument_error', argument: :post,
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class: Jekyll::Document)
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end
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2018-02-02 22:20:31 +00:00
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2018-01-29 22:19:10 +00:00
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@site = site
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@post = post
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2018-05-08 21:57:11 +00:00
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@template = template
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2018-01-31 20:29:27 +00:00
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# los errores tienen que ser un hash para que
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# ActiveModel pueda traer los errores normalmente
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@errors = {}
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2018-01-29 22:19:10 +00:00
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2018-02-23 19:20:51 +00:00
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# Si el sitio está traducido, trabajamos con la colección del
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# idioma, sino, con posts
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if @site.i18n?
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@collection = @lang = lang || I18n.locale.to_s
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else
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@collection = 'posts'
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end
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2018-02-03 22:37:09 +00:00
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# sincronizar los datos del document
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if new?
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2018-05-08 21:57:11 +00:00
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@front_matter = front_matter_from_template
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2018-02-03 22:37:09 +00:00
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update_attributes front_matter
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else
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load_front_matter!
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merge_with_front_matter! front_matter.stringify_keys
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end
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end
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# Limpiar los errores
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def reset_errors!
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@errors = {}
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2018-01-29 22:19:10 +00:00
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end
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2018-02-03 22:37:09 +00:00
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# El post es nuevo si no hay un documento asociado
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2018-01-29 22:19:10 +00:00
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def new?
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2018-02-03 22:37:09 +00:00
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@post.nil? || !File.exist?(@post.try(:path))
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2018-01-29 22:19:10 +00:00
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end
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2018-04-27 18:48:26 +00:00
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# El número de orden del artículo, si no tiene uno, se le asigna la
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# posición en la colección de artículos
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def order
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get_front_matter 'order'
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end
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2018-04-27 18:59:51 +00:00
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def ordered?
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2018-04-27 18:48:26 +00:00
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!order.nil?
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end
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2018-02-22 19:01:11 +00:00
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# Determina si fue traducido, buscando los slugs de su front_matter
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# lang en otras colecciones
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def translated?
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2018-02-23 19:20:51 +00:00
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@site.i18n? && get_front_matter('lang').present?
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2018-02-22 19:01:11 +00:00
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end
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def translations
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2018-02-24 21:24:11 +00:00
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@translations ||= find_translations
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end
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def find_translations
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2018-02-26 18:58:56 +00:00
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slugs = get_front_matter('lang')
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return [] unless slugs.present?
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slugs.map do |lang, id|
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2018-02-22 19:01:11 +00:00
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next if lang == @lang
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@site.posts_for(lang).find do |p|
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p.id == id
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end
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end.compact
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end
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2018-02-03 22:37:09 +00:00
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# Guarda los cambios.
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#
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# Recién cuando vamos a guardar creamos el Post, porque ya tenemos
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# todos los datos para escribir el archivo, que es la condición
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# necesaria para poder crearlo :P
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2018-01-29 22:19:10 +00:00
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def save
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2018-02-03 22:37:09 +00:00
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cleanup!
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return false unless valid?
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new_post if new?
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2018-01-29 22:19:10 +00:00
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return unless write
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return unless detect_file_rename!
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# Vuelve a leer el post para tomar los cambios
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@post.read
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2018-02-03 22:37:09 +00:00
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add_post_to_site!
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2018-01-29 22:19:10 +00:00
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true
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end
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alias :save! :save
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def title
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2018-02-03 22:37:09 +00:00
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get_front_matter 'title'
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2018-01-29 22:19:10 +00:00
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end
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def date
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2018-02-03 22:37:09 +00:00
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get_front_matter 'date'
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2018-01-29 22:19:10 +00:00
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end
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2018-02-24 21:24:11 +00:00
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def date_as_string
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date.strftime('%F')
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end
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2018-01-29 22:19:10 +00:00
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def tags
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2018-05-08 21:33:15 +00:00
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get_front_matter('tags') || []
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2018-01-29 22:19:10 +00:00
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end
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def categories
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2018-05-08 21:33:15 +00:00
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get_front_matter('categories') || []
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2018-01-29 22:19:10 +00:00
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end
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alias :category :categories
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2018-02-03 22:37:09 +00:00
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# Devuelve la ruta del post, si se cambió alguno de los datos,
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# generamos una ruta nueva para tener siempre la ruta actualizada.
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2018-01-29 22:19:10 +00:00
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def path
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2018-02-23 19:20:51 +00:00
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if basename_changed?
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File.join(@site.path, "_#{@collection}", basename_from_front_matter)
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else
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@post.try(:path)
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end
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2018-01-29 22:19:10 +00:00
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end
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2018-02-03 22:37:09 +00:00
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# TODO los slugs se pueden repetir, el identificador real sería
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# fecha+slug, pero se ve feo en las urls?
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2018-01-29 22:19:10 +00:00
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def id
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2018-02-03 22:37:09 +00:00
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get_front_matter 'slug'
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2018-01-29 22:19:10 +00:00
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end
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alias :slug :id
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alias :to_s :id
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def basename_changed?
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2018-02-03 22:37:09 +00:00
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@post.try(:basename) != basename_from_front_matter
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2018-01-30 15:20:19 +00:00
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end
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2018-02-24 21:24:11 +00:00
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def slug_changed?
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2018-05-02 18:38:46 +00:00
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new? || @post.data.dig('slug') != slug
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2018-02-24 21:24:11 +00:00
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end
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# Trae el contenido del post, si no lo seteamos ya. O sea que si solo
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# enviamos actualizaciones al front matter, debería traer el contenido
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# del post sin cambios
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2018-01-30 15:20:19 +00:00
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def content
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2018-05-14 19:27:29 +00:00
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@content ||= @post.try(:content) || template.try(:content)
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2018-02-02 22:20:31 +00:00
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end
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2018-06-25 20:44:47 +00:00
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# Determina si el post lleva contenido o es solo front_matter
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def content?
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template.fetch_front_matter('has_content', true)
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end
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2018-02-02 22:20:31 +00:00
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# imita Model.update_attributes de ActiveRecord
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def update_attributes(attrs)
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2018-02-03 22:37:09 +00:00
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# el cuerpo se maneja por separado
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@content = attrs.delete('content') if attrs.key? 'content'
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2018-06-25 18:05:35 +00:00
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# convertir los hashes en arrays si los campos son anidados
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# usamos to_h por todos lados porque sino son
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# HashWithIndifferentAccess
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attrs = attrs.to_h.map do |k,v|
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t = template_fields.find { |t| t.key == k }
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v = v.values.map(&:to_h) if t && t.nested? && t.array?
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{ k => v }
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end.reduce(Hash.new, :merge).stringify_keys
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merge_with_front_matter! attrs
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2018-02-03 22:37:09 +00:00
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end
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# Requisitos para que el post sea válido
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def validate
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2018-02-24 21:24:11 +00:00
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add_error validate: I18n.t('posts.errors.date') unless date.is_a? Time
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add_error validate: I18n.t('posts.errors.title') if title.blank?
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2018-02-03 22:37:09 +00:00
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# TODO verificar que el id sea único
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end
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def valid?
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reset_errors!
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validate
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@errors.empty?
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end
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# Permite ordenar los posts
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def <=>(other)
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@post <=> other.post
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2018-01-30 15:20:19 +00:00
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end
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2018-02-08 14:05:05 +00:00
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# Obtiene metadatos asegurándose que siempre trabajamos con strings
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def get_front_matter(name)
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@front_matter.dig(name.to_s)
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end
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2018-06-25 20:44:47 +00:00
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# Como get_front_matter pero con un valor por defecto
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def fetch_front_matter(name, default)
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@front_matter.fetch(name, default)
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end
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2018-05-14 19:27:29 +00:00
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# Trae el template a partir del layout
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def template_from_layout
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@site.templates.find do |t|
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t.get_front_matter('slug') == get_front_matter('layout')
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end
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end
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2018-05-11 20:00:45 +00:00
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def template_fields
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2018-05-17 19:06:08 +00:00
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return [] unless template
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2018-06-15 21:34:33 +00:00
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@template_fields ||= template.front_matter.map do |key, contents|
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next if REJECT_FROM_TEMPLATE.include? key
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Post::TemplateField.new(self, key, contents)
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end.compact
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2018-05-11 20:00:45 +00:00
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end
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2018-06-21 18:15:03 +00:00
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# devuelve las plantillas como strong params, primero los valores
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# simples, luego los arrays y al final los hashes
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2018-05-14 21:45:52 +00:00
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def template_params
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2018-06-21 18:15:03 +00:00
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@template_params ||= (DEFAULT_PARAMS + template_fields.map do |k|
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2018-06-15 21:34:33 +00:00
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k.to_param
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2018-06-21 18:15:03 +00:00
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end).sort_by do |s|
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s.is_a?(Symbol) ? 0 : 1
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2018-05-11 20:00:45 +00:00
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end
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2018-05-14 19:27:29 +00:00
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end
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def template
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@template ||= template_from_layout
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2018-05-11 20:00:45 +00:00
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end
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2018-01-29 22:19:10 +00:00
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private
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2018-06-21 17:33:45 +00:00
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# Completa el front_matter a partir de las variables de otro post que
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# le sirve de plantilla
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2018-05-08 21:57:11 +00:00
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def front_matter_from_template
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2018-05-17 19:06:08 +00:00
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# XXX: Llamamos a @template en lugar de template porque sino
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# entramos en una race condition
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return {} unless @template
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2018-05-08 21:57:11 +00:00
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2018-06-21 17:33:45 +00:00
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ft = template_fields.map(&:to_front_matter).reduce(Hash.new, :merge)
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2018-05-11 15:12:23 +00:00
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# Convertimos el slug en layout
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2018-06-21 17:33:45 +00:00
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ft['layout'] = template.slug
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2018-05-11 15:12:23 +00:00
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ft
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2018-05-08 21:57:11 +00:00
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end
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2018-02-03 22:37:09 +00:00
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# Genera un post nuevo y lo agrega a la colección del sitio.
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2018-01-29 22:19:10 +00:00
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def new_post
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2018-02-23 19:20:51 +00:00
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opts = { site: @site.jekyll, collection: @site.jekyll.collections[@collection] }
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2018-02-02 22:20:31 +00:00
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@post = Jekyll::Document.new(path, opts)
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2018-02-03 22:37:09 +00:00
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end
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# Solo agregar el post al sitio una vez que lo guardamos
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#
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# TODO no sería la forma correcta de hacerlo en Rails
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def add_post_to_site!
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2018-02-23 19:20:51 +00:00
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@site.jekyll.collections[@collection].docs << @post
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@site.jekyll.collections[@collection].docs.sort!
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2018-01-29 22:19:10 +00:00
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2018-02-23 19:20:51 +00:00
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unless @site.collections[@collection].include? self
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@site.collections[@collection] << self
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@site.collections[@collection].sort!
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end
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2018-01-29 22:19:10 +00:00
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end
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2018-02-03 22:37:09 +00:00
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# Los define, asegurandose que las llaves siempre son strings, para no
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# tener incompatibilidades con jekyll
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def set_front_matter(name, value)
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@front_matter[name.to_s] = value
|
2018-01-29 22:19:10 +00:00
|
|
|
end
|
|
|
|
|
|
|
|
# Cambiar el nombre del archivo si cambió el título o la fecha.
|
|
|
|
# Como Jekyll no tiene métodos para modificar un Document, lo
|
|
|
|
# engañamos eliminando la instancia de @post y recargando otra.
|
|
|
|
def detect_file_rename!
|
|
|
|
return true unless basename_changed?
|
2018-02-03 22:37:09 +00:00
|
|
|
# No eliminamos el archivo a menos que ya exista el reemplazo!
|
|
|
|
return false unless File.exist? path
|
2018-01-29 22:19:10 +00:00
|
|
|
|
2018-02-03 22:37:09 +00:00
|
|
|
Rails.logger.info I18n.t('posts.logger.rm', path: path)
|
|
|
|
FileUtils.rm @post.path
|
|
|
|
replace_post!
|
2018-01-29 22:19:10 +00:00
|
|
|
end
|
|
|
|
|
2018-02-03 22:37:09 +00:00
|
|
|
# Reemplaza el post en el sitio por uno nuevo
|
|
|
|
def replace_post!
|
2018-02-23 19:20:51 +00:00
|
|
|
@old_post = @site.jekyll.collections[@lang].docs.delete @post
|
2018-01-29 22:19:10 +00:00
|
|
|
|
|
|
|
new_post
|
|
|
|
end
|
|
|
|
|
|
|
|
# Obtiene el nombre del archivo a partir de los datos que le
|
|
|
|
# pasemos
|
|
|
|
def basename_from_front_matter
|
2018-02-24 21:24:11 +00:00
|
|
|
ext = get_front_matter('ext') || '.markdown'
|
2018-01-29 22:19:10 +00:00
|
|
|
|
2018-02-24 21:24:11 +00:00
|
|
|
"#{date_as_string}-#{slug}#{ext}"
|
2018-01-29 22:19:10 +00:00
|
|
|
end
|
|
|
|
|
|
|
|
# Toma los datos del front matter local y los mueve a los datos
|
|
|
|
# que van a ir al post. Si hay símbolos se convierten a cadenas,
|
2018-02-02 22:20:31 +00:00
|
|
|
# porque Jekyll trabaja con cadenas. Se excluyen otros datos que no
|
|
|
|
# van en el frontmatter
|
2018-02-03 22:37:09 +00:00
|
|
|
def merge_with_front_matter!(params)
|
|
|
|
@front_matter.merge! Hash[params.to_hash.map do |k, v|
|
|
|
|
[k, v] unless REJECT_FROM_DATA.include? k
|
2018-02-02 22:20:31 +00:00
|
|
|
end.compact]
|
2018-01-29 22:19:10 +00:00
|
|
|
end
|
|
|
|
|
|
|
|
# Carga una copia de los datos del post original excluyendo datos
|
|
|
|
# que no nos interesan
|
2018-02-03 22:37:09 +00:00
|
|
|
def load_front_matter!
|
|
|
|
@front_matter = @post.data.reject do |key, _|
|
2018-01-29 22:19:10 +00:00
|
|
|
REJECT_FROM_DATA.include? key
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2018-02-03 22:37:09 +00:00
|
|
|
def cleanup!
|
|
|
|
things_to_arrays!
|
|
|
|
date_to_time!
|
|
|
|
clean_content!
|
|
|
|
slugify_title!
|
2018-02-19 20:17:52 +00:00
|
|
|
remove_empty_front_matter!
|
2018-02-24 21:24:11 +00:00
|
|
|
update_lang_front_matter!
|
|
|
|
update_translations!
|
2018-05-02 18:38:46 +00:00
|
|
|
put_in_order!
|
2018-02-24 21:24:11 +00:00
|
|
|
end
|
|
|
|
|
|
|
|
# Setea el propio idioma en el front_matter de slugs
|
|
|
|
def update_lang_front_matter!
|
|
|
|
return unless translated?
|
|
|
|
|
|
|
|
@front_matter['lang'][@lang] = slug
|
|
|
|
end
|
|
|
|
|
|
|
|
# Busca las traducciones y actualiza el frontmatter si es necesario
|
|
|
|
def update_translations!
|
|
|
|
return unless translated?
|
|
|
|
return unless slug_changed?
|
|
|
|
|
|
|
|
find_translations.each do |post|
|
|
|
|
post.update_attributes(lang: get_front_matter('lang'))
|
|
|
|
post.save
|
|
|
|
end
|
2018-02-19 20:17:52 +00:00
|
|
|
end
|
|
|
|
|
|
|
|
def remove_empty_front_matter!
|
|
|
|
@front_matter.delete_if do |k,v|
|
|
|
|
v.blank?
|
|
|
|
end
|
2018-02-03 22:37:09 +00:00
|
|
|
end
|
|
|
|
|
2018-01-29 22:19:10 +00:00
|
|
|
# Aplica limpiezas básicas del contenido
|
|
|
|
def clean_content!
|
2018-02-03 22:37:09 +00:00
|
|
|
@content.try(:delete!, "\r")
|
2018-01-29 22:19:10 +00:00
|
|
|
end
|
|
|
|
|
|
|
|
# Guarda los cambios en el archivo destino
|
|
|
|
def write
|
2018-02-03 22:37:09 +00:00
|
|
|
r = File.open(path, File::RDWR | File::CREAT, 0o640) do |f|
|
2018-01-29 22:19:10 +00:00
|
|
|
# Bloquear el archivo para que no sea accedido por otro
|
|
|
|
# proceso u otra editora
|
|
|
|
f.flock(File::LOCK_EX)
|
|
|
|
|
|
|
|
# Empezar por el principio
|
|
|
|
f.rewind
|
|
|
|
|
|
|
|
# Escribir
|
|
|
|
f.write(full_content)
|
|
|
|
|
|
|
|
# Eliminar el resto
|
|
|
|
f.flush
|
|
|
|
f.truncate(f.pos)
|
|
|
|
end
|
|
|
|
|
|
|
|
return true if r.zero?
|
|
|
|
|
2018-02-02 22:20:31 +00:00
|
|
|
add_error file: I18n.t('posts.errors.file')
|
2018-01-29 22:19:10 +00:00
|
|
|
false
|
|
|
|
end
|
|
|
|
|
2018-02-03 22:37:09 +00:00
|
|
|
# Genera el post con front matter, menos los campos que no necesitamos
|
2018-02-24 21:24:11 +00:00
|
|
|
# que estén en el front matter.
|
|
|
|
#
|
|
|
|
# El contenido se toma de `content` en lugar de `@content`, para poder
|
|
|
|
# obtener el contenido por defecto si es que no lo enviamos
|
|
|
|
# modificaciones, como en `update_translations!`
|
2018-01-29 22:19:10 +00:00
|
|
|
def full_content
|
2018-02-03 22:37:09 +00:00
|
|
|
yaml = @front_matter.reject do |k,_|
|
|
|
|
REJECT_FROM_FRONT_MATTER.include? k
|
|
|
|
end
|
|
|
|
|
2018-02-24 21:24:11 +00:00
|
|
|
"#{yaml.to_yaml}---\n\n#{content}"
|
2018-01-29 22:19:10 +00:00
|
|
|
end
|
2018-02-02 22:20:31 +00:00
|
|
|
|
|
|
|
def add_error(hash)
|
|
|
|
hash.each_pair do |k,i|
|
|
|
|
if @errors.key?(k)
|
|
|
|
@errors[k] = [@errors[k], i]
|
|
|
|
else
|
|
|
|
@errors[k] = i
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
@errors
|
|
|
|
end
|
2018-02-03 22:37:09 +00:00
|
|
|
|
|
|
|
def date_to_time!
|
|
|
|
unless @front_matter.dig(:date).is_a? Time
|
|
|
|
@front_matter['date'] = @front_matter.dig('date').try(:to_time) || Time.now
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
def things_to_arrays!
|
|
|
|
[:tags,:categories].each do |c|
|
2018-02-03 23:41:02 +00:00
|
|
|
thing = @front_matter.dig(c.to_s)
|
2018-02-24 21:24:11 +00:00
|
|
|
next if thing.blank?
|
2018-02-03 23:41:02 +00:00
|
|
|
next if thing.is_a? Array
|
|
|
|
@front_matter[c.to_s] = thing.split(',').map(&:strip)
|
2018-02-03 22:37:09 +00:00
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
def slugify_title!
|
2018-02-24 21:24:11 +00:00
|
|
|
if slug.blank?
|
2018-02-03 22:37:09 +00:00
|
|
|
@front_matter['slug'] = Jekyll::Utils.slugify(title)
|
|
|
|
end
|
|
|
|
end
|
2018-05-02 18:38:46 +00:00
|
|
|
|
|
|
|
# Agregar al final de la cola si no especificamos un orden
|
|
|
|
#
|
|
|
|
# TODO si el artículo tiene una fecha que lo coloca en medio de
|
|
|
|
# la colección en lugar de al final, deberíamos reordenar?
|
|
|
|
def put_in_order!
|
|
|
|
return unless order.nil?
|
|
|
|
|
|
|
|
@front_matter['order'] = @site.posts_for(@collection).count
|
|
|
|
end
|
2018-01-29 22:19:10 +00:00
|
|
|
end
|