144 lines
3.8 KiB
Ruby
144 lines
3.8 KiB
Ruby
# frozen_string_literal: true
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# A class we can use to serialize the site data
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class Site
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include ActiveModel::Serialization
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cattr_accessor :preloaded_category_custom_fields
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self.preloaded_category_custom_fields = Set.new
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def initialize(guardian)
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@guardian = guardian
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Category.preload_custom_fields(categories, preloaded_category_custom_fields) if preloaded_category_custom_fields.present?
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end
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def site_setting
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SiteSetting
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end
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def notification_types
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Notification.types
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end
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def trust_levels
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TrustLevel.all
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end
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def user_fields
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UserField.all
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end
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def categories
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@categories ||= begin
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categories = Category
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.includes(:uploaded_logo, :uploaded_background, :tags, :tag_groups)
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.secured(@guardian)
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.joins('LEFT JOIN topics t on t.id = categories.topic_id')
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.select('categories.*, t.slug topic_slug')
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.order(:position)
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categories = categories.to_a
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with_children = Set.new
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categories.each do |c|
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if c.parent_category_id
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with_children << c.parent_category_id
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end
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end
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allowed_topic_create = nil
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unless @guardian.is_admin?
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allowed_topic_create_ids =
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@guardian.anonymous? ? [] : Category.topic_create_allowed(@guardian).pluck(:id)
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allowed_topic_create = Set.new(allowed_topic_create_ids)
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end
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by_id = {}
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category_user = {}
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unless @guardian.anonymous?
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category_user = Hash[*CategoryUser.where(user: @guardian.user).pluck(:category_id, :notification_level).flatten]
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end
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regular = CategoryUser.notification_levels[:regular]
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categories.each do |category|
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category.notification_level = category_user[category.id] || regular
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category.permission = CategoryGroup.permission_types[:full] if allowed_topic_create&.include?(category.id) || @guardian.is_admin?
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category.has_children = with_children.include?(category.id)
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by_id[category.id] = category
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end
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categories.reject! { |c| c.parent_category_id && !by_id[c.parent_category_id] }
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categories
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end
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end
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def groups
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Group.visible_groups(@guardian.user, "name ASC", include_everyone: true)
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end
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def suppressed_from_latest_category_ids
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categories.select { |c| c.suppress_from_latest == true }.map(&:id)
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end
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def archetypes
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Archetype.list.reject { |t| t.id == Archetype.private_message }
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end
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def auth_providers
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Discourse.enabled_auth_providers
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end
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def self.json_for(guardian)
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if guardian.anonymous? && SiteSetting.login_required
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return {
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periods: TopTopic.periods.map(&:to_s),
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filters: Discourse.filters.map(&:to_s),
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user_fields: UserField.all.map do |userfield|
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UserFieldSerializer.new(userfield, root: false, scope: guardian)
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end,
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auth_providers: Discourse.enabled_auth_providers.map do |provider|
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AuthProviderSerializer.new(provider, root: false, scope: guardian)
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end
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}.to_json
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end
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seq = nil
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if guardian.anonymous?
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seq = MessageBus.last_id('/site_json')
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cached_json, cached_seq, cached_version = $redis.mget('site_json', 'site_json_seq', 'site_json_version')
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if cached_json && seq == cached_seq.to_i && Discourse.git_version == cached_version
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return cached_json
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end
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end
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site = Site.new(guardian)
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json = MultiJson.dump(SiteSerializer.new(site, root: false, scope: guardian))
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if guardian.anonymous?
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$redis.multi do
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$redis.setex 'site_json', 1800, json
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$redis.set 'site_json_seq', seq
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$redis.set 'site_json_version', Discourse.git_version
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end
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end
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json
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end
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SITE_JSON_CHANNEL = '/site_json'
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def self.clear_anon_cache!
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# publishing forces the sequence up
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# the cache is validated based on the sequence
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MessageBus.publish(SITE_JSON_CHANNEL, '')
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end
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end
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