346 lines
10 KiB
Ruby
346 lines
10 KiB
Ruby
class UserAction < ActiveRecord::Base
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belongs_to :user
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belongs_to :target_post, class_name: "Post"
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belongs_to :target_topic, class_name: "Topic"
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validates_presence_of :action_type
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validates_presence_of :user_id
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LIKE = 1
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WAS_LIKED = 2
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BOOKMARK = 3
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NEW_TOPIC = 4
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REPLY = 5
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RESPONSE= 6
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MENTION = 7
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QUOTE = 9
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STAR = 10
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EDIT = 11
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NEW_PRIVATE_MESSAGE = 12
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GOT_PRIVATE_MESSAGE = 13
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ORDER = Hash[*[
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GOT_PRIVATE_MESSAGE,
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NEW_PRIVATE_MESSAGE,
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NEW_TOPIC,
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REPLY,
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RESPONSE,
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LIKE,
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WAS_LIKED,
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MENTION,
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QUOTE,
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BOOKMARK,
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STAR,
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EDIT
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].each_with_index.to_a.flatten]
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# note, this is temporary until we upgrade to rails 4
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# in rails 4 types are mapped correctly so you dont end up
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# having strings where you would expect bools
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class UserActionRow < OpenStruct
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include ActiveModel::SerializerSupport
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end
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def self.stats(user_id, guardian)
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# Sam: I tried this in AR and it got complex
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builder = UserAction.sql_builder <<SQL
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SELECT action_type, COUNT(*) count
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FROM user_actions a
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JOIN topics t ON t.id = a.target_topic_id
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LEFT JOIN posts p on p.id = a.target_post_id
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JOIN posts p2 on p2.topic_id = a.target_topic_id and p2.post_number = 1
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LEFT JOIN categories c ON c.id = t.category_id
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/*where*/
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GROUP BY action_type
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SQL
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builder.where('a.user_id = :user_id', user_id: user_id)
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apply_common_filters(builder, user_id, guardian)
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results = builder.exec.to_a
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results.sort! { |a,b| ORDER[a.action_type] <=> ORDER[b.action_type] }
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results
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end
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def self.stream_item(action_id, guardian)
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stream(action_id: action_id, guardian: guardian).first
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end
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def self.stream(opts={})
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user_id = opts[:user_id]
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offset = opts[:offset] || 0
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limit = opts[:limit] || 60
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action_id = opts[:action_id]
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action_types = opts[:action_types]
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guardian = opts[:guardian]
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ignore_private_messages = opts[:ignore_private_messages]
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# The weird thing is that target_post_id can be null, so it makes everything
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# ever so more complex. Should we allow this, not sure.
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builder = SqlBuilder.new("
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SELECT
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t.title, a.action_type, a.created_at, t.id topic_id,
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a.user_id AS target_user_id, au.name AS target_name, au.username AS target_username,
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coalesce(p.post_number, 1) post_number,
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p.reply_to_post_number,
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pu.email ,pu.username, pu.name, pu.id user_id,
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u.email acting_email, u.username acting_username, u.name acting_name, u.id acting_user_id,
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coalesce(p.cooked, p2.cooked) cooked,
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CASE WHEN coalesce(p.deleted_at, p2.deleted_at, t.deleted_at) IS NULL THEN false ELSE true END deleted,
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p.hidden,
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p.post_type
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FROM user_actions as a
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JOIN topics t on t.id = a.target_topic_id
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LEFT JOIN posts p on p.id = a.target_post_id
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JOIN posts p2 on p2.topic_id = a.target_topic_id and p2.post_number = 1
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JOIN users u on u.id = a.acting_user_id
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JOIN users pu on pu.id = COALESCE(p.user_id, t.user_id)
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JOIN users au on au.id = a.user_id
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LEFT JOIN categories c on c.id = t.category_id
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/*where*/
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/*order_by*/
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/*offset*/
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/*limit*/
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")
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apply_common_filters(builder, user_id, guardian, ignore_private_messages)
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if action_id
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builder.where("a.id = :id", id: action_id.to_i)
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else
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builder.where("a.user_id = :user_id", user_id: user_id.to_i)
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builder.where("a.action_type in (:action_types)", action_types: action_types) if action_types && action_types.length > 0
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builder
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.order_by("a.created_at desc")
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.offset(offset.to_i)
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.limit(limit.to_i)
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end
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builder.map_exec(UserActionRow)
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end
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# slightly different to standard stream, it collapses replies
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def self.private_message_stream(action_type, opts)
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user_id = opts[:user_id]
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return [] unless opts[:guardian].can_see_private_messages?(user_id)
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builder = SqlBuilder.new("
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SELECT
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t.title, :action_type action_type, p.created_at, t.id topic_id,
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:user_id AS target_user_id, au.name AS target_name, au.username AS target_username,
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coalesce(p.post_number, 1) post_number,
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p.reply_to_post_number,
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pu.email ,pu.username, pu.name, pu.id user_id,
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pu.email acting_email, pu.username acting_username, pu.name acting_name, pu.id acting_user_id,
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p.cooked,
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CASE WHEN coalesce(p.deleted_at, t.deleted_at) IS NULL THEN false ELSE true END deleted,
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p.hidden,
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p.post_type
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FROM topics t
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JOIN posts p ON p.topic_id = t.id and p.post_number = t.highest_post_number
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JOIN users pu ON pu.id = p.user_id
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JOIN users au ON au.id = :user_id
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WHERE archetype = 'private_message' and EXISTS (
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select 1 from user_actions a where a.user_id = :user_id and a.target_topic_id = t.id and action_type = :action_type)
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ORDER BY p.created_at desc
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/*offset*/
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/*limit*/
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")
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builder
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.offset((opts[:offset] || 0).to_i)
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.limit((opts[:limit] || 60).to_i)
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.map_exec(UserActionRow, user_id: user_id, action_type: action_type)
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end
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def self.log_action!(hash)
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required_parameters = [:action_type, :user_id, :acting_user_id, :target_topic_id, :target_post_id]
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require_parameters(hash, *required_parameters)
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transaction(requires_new: true) do
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begin
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# protect against dupes, for some reason this is failing in some cases
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action = self.where(hash.select{|k,v| required_parameters.include?(k)}).first
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return action if action
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action = self.new(hash)
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if hash[:created_at]
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action.created_at = hash[:created_at]
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end
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action.save!
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user_id = hash[:user_id]
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update_like_count(user_id, hash[:action_type], 1)
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topic = Topic.includes(:category).where(id: hash[:target_topic_id]).first
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# move into Topic perhaps
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group_ids = nil
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if topic && topic.category && topic.category.read_restricted
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group_ids = topic.category.groups.pluck("groups.id")
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end
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MessageBus.publish("/users/#{action.user.username.downcase}",
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action.id,
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user_ids: [user_id],
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group_ids: group_ids )
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action
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rescue ActiveRecord::RecordNotUnique
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# can happen, don't care already logged
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raise ActiveRecord::Rollback
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end
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end
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end
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def self.remove_action!(hash)
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require_parameters(hash, :action_type, :user_id, :acting_user_id, :target_topic_id, :target_post_id)
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if action = UserAction.where(hash).first
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action.destroy
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MessageBus.publish("/user/#{hash[:user_id]}", {user_action_id: action.id, remove: true})
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end
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update_like_count(hash[:user_id], hash[:action_type], -1)
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end
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def self.synchronize_target_topic_ids(post_ids = nil)
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# nuke all dupes, using magic
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builder = SqlBuilder.new <<SQL
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DELETE FROM user_actions USING user_actions ua2
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/*where*/
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SQL
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builder.where <<SQL
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user_actions.action_type = ua2.action_type AND
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user_actions.user_id = ua2.user_id AND
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user_actions.acting_user_id = ua2.acting_user_id AND
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user_actions.target_post_id = ua2.target_post_id AND
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user_actions.target_post_id > 0 AND
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user_actions.id > ua2.id
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SQL
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if post_ids
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builder.where("user_actions.target_post_id in (:post_ids)", post_ids: post_ids)
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end
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builder.exec
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builder = SqlBuilder.new("UPDATE user_actions
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SET target_topic_id = (select topic_id from posts where posts.id = target_post_id)
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/*where*/")
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builder.where("target_topic_id <> (select topic_id from posts where posts.id = target_post_id)")
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if post_ids
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builder.where("target_post_id in (:post_ids)", post_ids: post_ids)
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end
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builder.exec
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end
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def self.synchronize_favorites
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exec_sql("
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DELETE FROM user_actions ua
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WHERE action_type = :star
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AND NOT EXISTS (
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SELECT 1 FROM topic_users tu
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WHERE
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tu.user_id = ua.user_id AND
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tu.topic_id = ua.target_topic_id AND
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starred
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)", star: UserAction::STAR)
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exec_sql("INSERT INTO user_actions
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(action_type, user_id, target_topic_id, target_post_id, acting_user_id, created_at, updated_at)
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SELECT :star, tu.user_id, tu.topic_id, -1, tu.user_id, tu.starred_at, tu.starred_at
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FROM topic_users tu
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WHERE starred AND NOT EXISTS(
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SELECT 1 FROM user_actions ua
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WHERE tu.user_id = ua.user_id AND
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tu.topic_id = ua.target_topic_id AND
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ua.action_type = :star
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)
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", star: UserAction::STAR)
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end
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def self.ensure_consistency!
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self.synchronize_target_topic_ids
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self.synchronize_favorites
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end
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protected
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def self.update_like_count(user_id, action_type, delta)
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if action_type == LIKE
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User.where(id: user_id).update_all("likes_given = likes_given + #{delta.to_i}")
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elsif action_type == WAS_LIKED
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User.where(id: user_id).update_all("likes_received = likes_received + #{delta.to_i}")
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end
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end
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def self.apply_common_filters(builder,user_id,guardian,ignore_private_messages=false)
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unless guardian.can_see_deleted_posts?
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builder.where("p.deleted_at is null and p2.deleted_at is null and t.deleted_at is null")
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end
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unless guardian.user && guardian.user.id == user_id
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builder.where("a.action_type not in (#{BOOKMARK})")
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end
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if !guardian.can_see_private_messages?(user_id) || ignore_private_messages
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builder.where("t.archetype != :archetype", archetype: Archetype::private_message)
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end
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unless guardian.is_staff?
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allowed = guardian.secure_category_ids
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if allowed.present?
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builder.where("( c.read_restricted IS NULL OR
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NOT c.read_restricted OR
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(c.read_restricted and c.id in (:cats)) )", cats: guardian.secure_category_ids )
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else
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builder.where("(c.read_restricted IS NULL OR NOT c.read_restricted)")
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end
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end
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end
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def self.require_parameters(data, *params)
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params.each do |p|
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raise Discourse::InvalidParameters.new(p) if data[p].nil?
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end
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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: user_actions
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#
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# id :integer not null, primary key
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# action_type :integer not null
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# user_id :integer not null
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# target_topic_id :integer
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# target_post_id :integer
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# target_user_id :integer
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# acting_user_id :integer
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# created_at :datetime not null
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# updated_at :datetime not null
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#
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# Indexes
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#
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# idx_unique_rows (action_type,user_id,target_topic_id,target_post_id,acting_user_id) UNIQUE
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# index_actions_on_acting_user_id (acting_user_id)
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# index_actions_on_user_id_and_action_type (user_id,action_type)
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#
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