56 lines
2.1 KiB
Ruby
56 lines
2.1 KiB
Ruby
# Article category
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class ArticleCategory < ApplicationRecord
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# @!attribute name
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# @return [String] Title of the category.
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# @!attrubute description
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# @return [String] Description (currently unused)
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# @!attribute articles
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# @return [Array<Article>] Articles with this category.
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has_many :articles
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# @!attribute order_articles
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# @return [Array<OrderArticle>] Order articles with this category.
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has_many :order_articles, through: :articles
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# @!attribute orders
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# @return [Array<Order>] Orders with articles in this category.
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has_many :orders, through: :order_articles
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normalize_attributes :name, :description
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validates :name, :presence => true, :uniqueness => true, :length => { :minimum => 2 }
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before_destroy :check_for_associated_articles
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def self.ransackable_attributes(auth_object = nil)
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%w(id name)
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end
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def self.ransackable_associations(auth_object = nil)
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%w(articles order_articles orders)
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end
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# Find a category that matches a category name; may return nil.
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# TODO more intelligence like remembering earlier associations (global and/or per-supplier)
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def self.find_match(category)
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return if category.blank? || category.length < 3
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c = nil
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## exact match - not needed, will be returned by next query as well
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# c ||= ArticleCategory.where(name: category).first
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# case-insensitive substring match (take the closest match = shortest)
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c = ArticleCategory.where('name LIKE ?', "%#{category}%") unless c && c.any?
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# case-insensitive phrase present in category description
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c = ArticleCategory.where('description LIKE ?', "%#{category}%").select { |s| s.description.match /(^|,)\s*#{category}\s*(,|$)/i } unless c && c.any?
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# return closest match if there are multiple
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c = c.sort_by { |s| s.name.length }.first if c.respond_to? :sort_by
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c
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end
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protected
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# Deny deleting the category when there are associated articles.
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def check_for_associated_articles
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raise I18n.t('activerecord.errors.has_many_left', collection: Article.model_name.human) if articles.undeleted.exists?
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end
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end
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