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33 lines
871 B
Ruby
33 lines
871 B
Ruby
class Tag < ActiveRecord::Base
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validates :name, presence: true, uniqueness: true
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has_many :topic_tags, dependent: :destroy
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has_many :topics, through: :topic_tags
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has_many :tag_users
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def self.tags_by_count_query(opts={})
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q = TopicTag.joins(:tag, :topic).group("topic_tags.tag_id, tags.name").order('count_all DESC')
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q = q.limit(opts[:limit]) if opts[:limit]
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q
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end
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def self.top_tags(limit_arg=nil)
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self.tags_by_count_query(limit: limit_arg || SiteSetting.max_tags_in_filter_list)
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.count
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.map {|name, count| name}
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end
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end
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# == Schema Information
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#
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# Table name: tags
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#
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# id :integer not null, primary key
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# name :string not null
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# topic_count :integer default(0), not null
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# created_at :datetime
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# updated_at :datetime
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#
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# Indexes
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#
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# index_tags_on_name (name) UNIQUE
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#
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