documentation/app/models/follow.rb

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class Follow < ActiveRecord::Base
belongs_to :account
belongs_to :target_account, class_name: 'Account'
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has_one :stream_entry, as: :activity, dependent: :destroy
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validates :account, :target_account, presence: true
validates :account_id, uniqueness: { scope: :target_account_id }
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def verb
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self.destroyed? ? :unfollow : :follow
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end
def target
self.target_account
end
def object_type
target.object_type
end
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def content
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self.destroyed? ? "#{self.account.acct} is no longer following #{self.target_account.acct}" : "#{self.account.acct} started following #{self.target_account.acct}"
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end
def title
content
end
def mentions
[]
end
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after_create do
self.account.stream_entries.create!(activity: self)
end
end