discourse/app/models/user_action.rb

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class UserAction < ActiveRecord::Base
belongs_to :user
belongs_to :target_post, class_name: "Post"
belongs_to :target_topic, class_name: "Topic"
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attr_accessible :acting_user_id, :action_type, :target_topic_id, :target_post_id, :target_user_id, :user_id
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validates_presence_of :action_type
validates_presence_of :user_id
LIKE = 1
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WAS_LIKED = 2
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BOOKMARK = 3
NEW_TOPIC = 4
POST = 5
RESPONSE= 6
MENTION = 7
QUOTE = 9
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STAR = 10
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EDIT = 11
NEW_PRIVATE_MESSAGE = 12
GOT_PRIVATE_MESSAGE = 13
ORDER = Hash[*[
NEW_PRIVATE_MESSAGE,
GOT_PRIVATE_MESSAGE,
BOOKMARK,
NEW_TOPIC,
POST,
RESPONSE,
LIKE,
WAS_LIKED,
MENTION,
QUOTE,
STAR,
EDIT
].each_with_index.to_a.flatten]
def self.stats(user_id, guardian)
results = UserAction.select("action_type, COUNT(*) count, '' AS description")
.joins(:target_topic)
.where(user_id: user_id)
.group('action_type')
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# We apply similar filters in stream, might consider trying to consolidate somehow
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unless guardian.can_see_private_messages?(user_id)
results = results.where('topics.archetype <> ?', Archetype::private_message)
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end
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unless guardian.user && guardian.user.id == user_id
results = results.where("action_type <> ?", BOOKMARK)
end
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results = results.to_a
results.sort! { |a,b| ORDER[a.action_type] <=> ORDER[b.action_type] }
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results.each do |row|
row.description = self.description(row.action_type, detailed: true)
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end
results
end
def self.stream_item(action_id, guardian)
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]
offset = opts[:offset] || 0
limit = opts[:limit] || 60
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action_id = opts[:action_id]
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action_types = opts[:action_types]
guardian = opts[:guardian]
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
# ever so more complex. Should we allow this, not sure.
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builder = SqlBuilder.new("
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SELECT
t.title, a.action_type, a.created_at, t.id topic_id,
coalesce(p.post_number, 1) post_number,
p.reply_to_post_number,
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pu.email ,pu.username, pu.name, pu.id user_id,
u.email acting_email, u.username acting_username, u.name acting_name, u.id acting_user_id,
coalesce(p.cooked, p2.cooked) cooked
FROM user_actions as a
JOIN topics t on t.id = a.target_topic_id
LEFT JOIN posts p on p.id = a.target_post_id
JOIN posts p2 on p2.topic_id = a.target_topic_id and p2.post_number = 1
JOIN users u on u.id = a.acting_user_id
JOIN users pu on pu.id = COALESCE(p.user_id, t.user_id)
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/*where*/
/*order_by*/
/*offset*/
/*limit*/
")
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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")
end
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unless guardian.user && guardian.user.id == user_id
builder.where("a.action_type not in (#{BOOKMARK})")
end
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if !guardian.can_see_private_messages?(user_id) || ignore_private_messages
builder.where("t.archetype != :archetype", archetype: Archetype::private_message)
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end
if action_id
builder.where("a.id = :id", id: action_id.to_i)
data = builder.exec.to_a
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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.order_by("a.created_at desc")
builder.offset(offset.to_i)
builder.limit(limit.to_i)
data = builder.exec.to_a
end
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data.each do |row|
row["action_type"] = row["action_type"].to_i
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row["description"] = self.description(row["action_type"])
row["created_at"] = DateTime.parse(row["created_at"])
# we should probably cache the excerpts in the db at some point
row["excerpt"] = PrettyText.excerpt(row["cooked"],300) if row["cooked"]
row["cooked"] = nil
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row["avatar_template"] = User.avatar_template(row["email"])
row["acting_avatar_template"] = User.avatar_template(row["acting_email"])
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row.delete("email")
row.delete("acting_email")
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row["slug"] = Slug.for(row["title"])
end
data
end
def self.description(row, opts = {})
t = I18n.t('user_action_descriptions')
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if opts[:detailed]
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# will localize as soon as we stablize the names here
desc = case row.to_i
when BOOKMARK
t[:bookmarks]
when NEW_TOPIC
t[:topics]
when WAS_LIKED
t[:likes_received]
when LIKE
t[:likes_given]
when RESPONSE
t[:responses]
when POST
t[:posts]
when MENTION
t[:mentions]
when QUOTE
t[:quotes]
when EDIT
t[:edits]
when STAR
t[:favorites]
when NEW_PRIVATE_MESSAGE
t[:sent_items]
when GOT_PRIVATE_MESSAGE
t[:inbox]
end
else
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desc =
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case row.to_i
when NEW_TOPIC
then t[:posted]
when LIKE,WAS_LIKED
then t[:liked]
when RESPONSE,POST
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then t[:responded_to]
when BOOKMARK
then t[:bookmarked]
when MENTION
then t[:mentioned]
when QUOTE
then t[:quoted]
when STAR
then t[:favorited]
when EDIT
then t[:edited]
end
end
desc
end
def self.log_action!(hash)
require_parameters(hash, :action_type, :user_id, :acting_user_id, :target_topic_id, :target_post_id)
transaction(requires_new: true) do
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begin
action = 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
action.save!
action_type = hash[:action_type]
user_id = hash[:user_id]
if action_type == LIKE
User.update_all('likes_given = likes_given + 1', id: user_id)
elsif action_type == WAS_LIKED
User.update_all('likes_received = likes_received + 1', id: user_id)
end
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rescue ActiveRecord::RecordNotUnique
# can happen, don't care already logged
raise ActiveRecord::Rollback
end
end
end
def self.remove_action!(hash)
require_parameters(hash, :action_type, :user_id, :acting_user_id, :target_topic_id, :target_post_id)
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})
end
action_type = hash[:action_type]
user_id = hash[:user_id]
if action_type == LIKE
User.update_all('likes_given = likes_given - 1', id: user_id)
elsif action_type == WAS_LIKED
User.update_all('likes_received = likes_received - 1', id: user_id)
end
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end
protected
def self.require_parameters(data, *params)
params.each do |p|
raise Discourse::InvalidParameters.new(p) if data[p].nil?
end
end
end