0e765b47de
* Modify articles below content for SEO and efficiency * fix Travis and code climate failures Co-authored-by: mstruve <mollylbs@gmail.com>
55 lines
1.5 KiB
Ruby
55 lines
1.5 KiB
Ruby
class ArticleSuggester
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def initialize(article)
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@article = article
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end
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def articles(max: 4)
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if cached_tag_list_array.any?
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# avoid loading more data if we don't need to
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tagged_suggestions = suggestions_by_tag(max: max)
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return tagged_suggestions if tagged_suggestions.size == max
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# if there are not enough tagged articles, load other suggestions
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# ignoring tagged articles that might be relevant twice, hence avoiding duplicates
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num_remaining_needed = max - tagged_suggestions.size
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other_articles = other_suggestions(
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max: num_remaining_needed,
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ids_to_ignore: tagged_suggestions.pluck(:id),
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)
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tagged_suggestions.union(other_articles)
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else
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other_suggestions(max: max)
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end
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end
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private
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attr_reader :article
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def other_suggestions(max: 4, ids_to_ignore: [])
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ids_to_ignore << article.id
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Article.published.
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where.not(id: ids_to_ignore).
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where.not(user_id: article.user_id).
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order("hotness_score DESC").
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offset(rand(0..offset)).
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first(max)
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end
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def suggestions_by_tag(max: 4)
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Article.published.tagged_with(cached_tag_list_array, any: true).
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where.not(user_id: article.user_id).
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where("organic_page_views_past_month_count > 5").
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order("hotness_score DESC").
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offset(rand(0..offset)).
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first(max)
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end
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def offset
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Rails.env.production? ? 200 : 0
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end
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def cached_tag_list_array
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(article.cached_tag_list || "").split(", ")
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end
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end
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