100 lines
2.7 KiB
Ruby
100 lines
2.7 KiB
Ruby
class Page < ApplicationRecord
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extend UniqueAcrossModels
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TEMPLATE_OPTIONS = %w[contained full_within_layout nav_bar_included json css txt].freeze
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TERMS_SLUG = "terms".freeze
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CODE_OF_CONDUCT_SLUG = "code-of-conduct".freeze
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PRIVACY_SLUG = "privacy".freeze
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validates :title, presence: true
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validates :description, presence: true
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validates :template, inclusion: { in: TEMPLATE_OPTIONS }
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validate :body_present
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unique_across_models :slug
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before_validation :set_default_template
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before_save :evaluate_markdown
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after_commit :ensure_uniqueness_of_landinge_page
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after_commit :bust_cache
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mount_uploader :social_image, ProfileImageUploader
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resourcify
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# @param slug [String]
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#
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# @return An HTML safe String.
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#
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# @yield Yield to the calling context if there's no Page match for slug.
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#
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# @raise LocalJumpError when no matching slug nor block given.
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#
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# @note Yes, treating this value as HTML safe is risky. But we already opened that vector by
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# letting the administrator of pages write HTML.
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#
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# @todo Do we want to only allow certain slugs?
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#
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# rubocop:disable Rails/OutputSafety
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def self.render_safe_html_for(slug:)
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page = find_by(slug: slug)
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if page
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page.processed_html.html_safe
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else
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yield
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end
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end
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# rubocop:enable Rails/OutputSafety
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def self.landing_page
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find_by(landing_page: true)
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end
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def path
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is_top_level_path ? "/#{slug}" : "/page/#{slug}"
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end
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def feature_flag_name
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"page_#{slug}"
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end
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def as_json(...)
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super(...).slice(*%w[id title slug description is_top_level_path landing_page
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body_html body_json body_markdown processed_html
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social_image template ])
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end
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private
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def evaluate_markdown
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if body_markdown.present?
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parsed_markdown = MarkdownProcessor::Parser.new(body_markdown)
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self.processed_html = parsed_markdown.finalize
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else
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self.processed_html = body_html
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end
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end
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def set_default_template
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self.template = "contained" if template.blank?
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end
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def body_present
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return unless body_markdown.blank? && body_html.blank? && body_json.blank? && body_css.blank?
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errors.add(:body_markdown, I18n.t("models.page.body_must_exist"))
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end
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# As there can only be one global landing page, we want to ensure that
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# data integrity is preserved by setting `landing_page` to `false` for all
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# other pages if the current one was transformed into a landing page
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def ensure_uniqueness_of_landinge_page
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return unless previous_changes["landing_page"] == [false, true]
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Page.where.not(id: id).update_all(landing_page: false)
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end
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def bust_cache
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Pages::BustCacheWorker.perform_async(slug)
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end
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end
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