1597318db8
* Add PgSearch to Listing model * Working MVP - pre-optimizations * Remove includes * Update search_spec * Add more specs * Fix specs * Refactor filter_by_category * Update block parameter name * Add published index to classified_listings table * Preload user, organization, and listing_category * Working MVP - pre-optimizations * Refactor filter_by_category * Update schema * Fix schema for real * Remove constant specs and make them private
106 lines
3.4 KiB
Ruby
106 lines
3.4 KiB
Ruby
class Listing < ApplicationRecord
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# We used to use both "classified listing" and "listing" throughout the app.
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# We standardized on the latter, but keeping the table name was easier.
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self.table_name = "classified_listings"
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include Searchable
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include PgSearch::Model
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SEARCH_SERIALIZER = Search::ListingSerializer
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SEARCH_CLASS = Search::Listing
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attr_accessor :action
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# NOTE: categories were hardcoded at first and the model was only added later.
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# The foreign_key and inverse_of options are used because of legacy table names.
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belongs_to :listing_category, inverse_of: :listings, foreign_key: :classified_listing_category_id
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belongs_to :user
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belongs_to :organization, optional: true
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before_validation :modify_inputs
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before_save :evaluate_markdown
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before_create :create_slug
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after_commit :index_to_elasticsearch, on: %i[create update]
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after_commit :remove_from_elasticsearch, on: [:destroy]
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acts_as_taggable_on :tags
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has_many :credits, as: :purchase, inverse_of: :purchase, dependent: :nullify
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validates :user_id, presence: true
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validates :organization_id, presence: true, unless: :user_id?
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validates :title, presence: true, length: { maximum: 128 }
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validates :body_markdown, presence: true, length: { maximum: 400 }
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validates :location, length: { maximum: 32 }
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validate :restrict_markdown_input
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validate :validate_tags
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# [@atsmith813] this is adapted from the `listing_search` property in
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# `config/elasticsearch/mappings/listings.json`
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pg_search_scope :search_listings,
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against: %i[body_markdown cached_tag_list location slug title],
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using: { tsearch: { prefix: true } }
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scope :published, -> { where(published: true) }
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# NOTE: we still need to use the old column name for the join query
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scope :in_category, lambda { |slug|
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joins(:listing_category).where("classified_listing_categories.slug" => slug)
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}
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delegate :cost, to: :listing_category
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# Wrapping the column accessor names for consistency. Aliasing did not work.
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def listing_category_id
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classified_listing_category_id
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end
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def listing_category_id=(id)
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self.classified_listing_category_id = id
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end
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def category
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listing_category&.slug
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end
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def author
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organization || user
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end
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def path
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"/listings/#{category}/#{slug}"
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end
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def natural_expiration_date
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(bumped_at || created_at) + 30.days
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end
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private
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def evaluate_markdown
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self.processed_html = MarkdownProcessor::Parser.new(body_markdown).evaluate_listings_markdown
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end
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def modify_inputs
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temp_tags = tag_list
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self.tag_list = [] # overwrite any existing tag with those from the front matter
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tag_list.add(temp_tags, parser: ActsAsTaggableOn::TagParser)
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self.body_markdown = body_markdown.to_s.gsub(/\r\n/, "\n")
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end
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def restrict_markdown_input
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markdown_string = body_markdown.to_s
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if markdown_string.scan(/(?=\n)/).count > 12
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errors.add(:body_markdown,
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"has too many linebreaks. No more than 12 allowed.")
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end
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errors.add(:body_markdown, "is not allowed to include images.") if markdown_string.include?("![")
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errors.add(:body_markdown, "is not allowed to include liquid tags.") if markdown_string.include?("{% ")
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end
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def validate_tags
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errors.add(:tag_list, "exceed the maximum of 8 tags") if tag_list.length > 8
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end
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def create_slug
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self.slug = "#{title.downcase.parameterize.delete('_')}-#{rand(100_000).to_s(26)}"
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end
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end
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