70 lines
1.7 KiB
Ruby
70 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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class UserLookup
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def self.lookup_columns
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@user_lookup_columns ||= %i{id username name uploaded_avatar_id primary_group_id flair_group_id admin moderator trust_level}
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end
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def self.group_lookup_columns
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@group_lookup_columns ||= %i{id name flair_icon flair_upload_id flair_bg_color flair_color}
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end
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def initialize(user_ids = [])
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@user_ids = user_ids.tap(&:compact!).tap(&:uniq!).tap(&:flatten!)
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end
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# Lookup a user by id
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def [](user_id)
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users[user_id]
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end
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def primary_groups
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@primary_groups ||= users.values.each_with_object({}) do |user, hash|
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if user.primary_group_id
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group = groups[user.primary_group_id]
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set_user_group_preload(user, group, :primary_group)
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hash[user.id] = group
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end
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end
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end
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def flair_groups
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@flair_groups ||= users.values.each_with_object({}) do |user, hash|
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if user.flair_group_id
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group = groups[user.flair_group_id]
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set_user_group_preload(user, group, :flair_group)
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hash[user.id] = group
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end
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end
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end
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private
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def set_user_group_preload(user, group, group_association_name)
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association = user.association(group_association_name)
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association.target = group
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end
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def users
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@users ||= User
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.where(id: @user_ids)
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.select(self.class.lookup_columns)
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.index_by(&:id)
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end
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def groups
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@group_lookup ||= begin
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group_ids = users.values.map { |u| [u.primary_group_id, u.flair_group_id] }
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group_ids.flatten!
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group_ids.uniq!
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group_ids.compact!
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Group
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.includes(:flair_upload)
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.where(id: group_ids)
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.select(self.class.group_lookup_columns)
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.index_by(&:id)
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end
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end
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end
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