discourse/app/models/topic_list.rb

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require_dependency 'avatar_lookup'
class TopicList
include ActiveModel::Serialization
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attr_accessor :more_topics_url,
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:prev_topics_url,
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:draft,
:draft_key,
:draft_sequence,
:filter
def initialize(filter, current_user, topics)
@filter = filter
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@current_user = current_user
@topics_input = topics
end
# Lazy initialization
def topics
return @topics if @topics.present?
@topics = @topics_input.to_a
# Attach some data for serialization to each topic
@topic_lookup = TopicUser.lookup_for(@current_user, @topics) if @current_user.present?
# Create a lookup for all the user ids we need
user_ids = []
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@topics.each do |ft|
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user_ids << ft.user_id << ft.last_post_user_id << ft.featured_user_ids
end
avatar_lookup = AvatarLookup.new(user_ids)
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@topics.each do |ft|
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ft.user_data = @topic_lookup[ft.id] if @topic_lookup.present?
ft.posters = ft.posters_summary(avatar_lookup: avatar_lookup)
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ft.topic_list = self
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end
return @topics
end
def topic_ids
return [] unless @topics_input
@topics_input.pluck(:id)
end
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def attributes
{'more_topics_url' => page}
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end
end