39 lines
1.2 KiB
Ruby
39 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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require "errors"
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class User
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module Relationship
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module Follow
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extend ActiveSupport::Concern
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included do
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has_many :active_follow_relationships, class_name: "Relationships::Follow",
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foreign_key: "source_id",
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dependent: :destroy
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has_many :passive_follow_relationships, class_name: "Relationships::Follow",
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foreign_key: "target_id",
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dependent: :destroy
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has_many :followings, through: :active_follow_relationships, source: :target
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has_many :followers, through: :passive_follow_relationships, source: :source
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end
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# Follow an user
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def follow(target_user)
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raise Errors::FollowingSelf if target_user == self
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create_relationship(active_follow_relationships, target_user)
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end
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# Unfollow an user
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def unfollow(target_user)
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destroy_relationship(active_follow_relationships, target_user)
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end
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def following?(target_user)
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relationship_active?(followings, target_user)
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end
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end
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end
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end
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