a1439d0790
Note we're excluding a few files: * Configuration files that weren't generated by us * Migration files that weren't generated by us * The Gemfile, since it includes an important comment that must be on the same line as the gem declaration * The Budget::Stats class, since the heading statistics are a mess and having shorter lines would require a lot of refactoring
92 lines
3.0 KiB
Ruby
92 lines
3.0 KiB
Ruby
class RelatedContent < ApplicationRecord
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RELATED_CONTENT_SCORE_THRESHOLD = Setting["related_content_score_threshold"].to_f
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RELATIONABLE_MODELS = %w[proposals debates budgets investments].freeze
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acts_as_paranoid column: :hidden_at
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include ActsAsParanoidAliases
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belongs_to :author, class_name: "User"
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belongs_to :parent_relationable, polymorphic: true, optional: false, touch: true
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belongs_to :child_relationable, polymorphic: true, optional: false, touch: true
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has_one :opposite_related_content, class_name: name, foreign_key: :related_content_id
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has_many :related_content_scores, dependent: :destroy
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validates :parent_relationable_id,
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uniqueness: {
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scope: [:parent_relationable_type, :child_relationable_id, :child_relationable_type]
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}
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validate :different_parent_and_child
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after_create :create_opposite_related_content, unless: proc { opposite_related_content.present? }
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after_create :create_author_score
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scope :not_hidden, -> { where(hidden_at: nil) }
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scope :from_users, -> { where(machine_learning: false) }
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scope :from_machine_learning, -> { where(machine_learning: true) }
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scope :for_proposals, -> do
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where(parent_relationable_type: "Proposal", child_relationable_type: "Proposal")
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end
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scope :for_investments, -> do
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where(parent_relationable_type: "Budget::Investment", child_relationable_type: "Budget::Investment")
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end
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def score_positive(user)
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score(RelatedContentScore::SCORES[:POSITIVE], user)
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end
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def score_negative(user)
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score(RelatedContentScore::SCORES[:NEGATIVE], user)
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end
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def scored_by_user?(user)
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related_content_scores.exists?(user: user)
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end
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def same_parent_and_child?
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parent_relationable == child_relationable
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end
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def duplicate?
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parent_relationable.relationed_contents.include?(child_relationable)
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end
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private
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def different_parent_and_child
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if same_parent_and_child?
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errors.add(:parent_relationable, :itself)
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end
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end
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def create_opposite_related_content
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related_content = RelatedContent.create!(opposite_related_content: self,
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parent_relationable: child_relationable,
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child_relationable: parent_relationable,
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machine_learning: machine_learning,
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author: author)
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self.opposite_related_content = related_content
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end
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def score(value, user)
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score_with_opposite(value, user)
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if (related_content_scores.sum(:value) / related_content_scores_count) < RELATED_CONTENT_SCORE_THRESHOLD
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hide_with_opposite
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end
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end
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def hide_with_opposite
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hide
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opposite_related_content.hide
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end
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def create_author_score
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score_positive(author)
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end
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def score_with_opposite(value, user)
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RelatedContentScore.create(user: user, related_content: self, value: value)
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RelatedContentScore.create(user: user, related_content: opposite_related_content, value: value)
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end
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end
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