discourse/app/controllers/topics_controller.rb

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require_dependency 'topic_view'
require_dependency 'promotion'
class TopicsController < ApplicationController
# Avatar is an image request, not XHR
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before_filter :ensure_logged_in, only: [:timings,
:destroy_timings,
:update,
:star,
:destroy,
:status,
:invite,
:mute,
:unmute,
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:set_notifications,
:move_posts]
skip_before_filter :check_xhr, only: [:avatar, :show]
caches_action :avatar, :cache_path => Proc.new {|c| "#{c.params[:post_number]}-#{c.params[:topic_id]}" }
def show
# Consider the user for a promotion if they're new
if current_user.present?
Promotion.new(current_user).review if current_user.trust_level == TrustLevel.Levels[:new]
end
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@topic_view = TopicView.new(params[:id] || params[:topic_id],
current_user,
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username_filters: params[:username_filters],
best_of: params[:best_of],
page: params[:page])
anonymous_etag(@topic_view.topic) do
# force the correct slug
if params[:slug] && @topic_view.topic.slug != params[:slug]
fullpath = request.fullpath
split = fullpath.split('/')
split[2] = @topic_view.topic.slug
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redirect_to split.join('/'), status: 301
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return
end
# Figure out what we're filter on
if params[:post_number].present?
# Get posts near a post
@topic_view.filter_posts_near(params[:post_number].to_i)
elsif params[:posts_before].present?
@topic_view.filter_posts_before(params[:posts_before].to_i)
elsif params[:posts_after].present?
@topic_view.filter_posts_after(params[:posts_after].to_i)
else
# No filter? Consider it a paged view, default to page 0 which is the first segment
@topic_view.filter_posts_paged(params[:page].to_i)
end
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View.create_for(@topic_view.topic, request.remote_ip, current_user)
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@topic_view.draft_key = @topic_view.topic.draft_key
@topic_view.draft_sequence = DraftSequence.current(current_user, @topic_view.draft_key)
if (!request.xhr? || params[:track_visit]) && current_user
TopicUser.track_visit! @topic_view.topic, current_user
@topic_view.draft = Draft.get(current_user, @topic_view.draft_key, @topic_view.draft_sequence)
end
topic_view_serializer = TopicViewSerializer.new(@topic_view, scope: guardian, root: false)
respond_to do |format|
format.html do
@canonical = "#{request.protocol}#{request.host_with_port}" + @topic_view.topic.relative_url
if params[:post_number]
@post = @topic_view.posts.select{|p| p.post_number == params[:post_number].to_i}.first
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page = ((params[:post_number].to_i - 1) / SiteSetting.posts_per_page) + 1
@canonical << "?page=#{page}" if page > 1
else
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@canonical << "?page=#{params[:page]}" if params[:page] && params[:page].to_i > 1
end
last_post = @topic_view.posts[-1]
if last_post.present? and (@topic_view.topic.highest_post_number > last_post.post_number)
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@next_page = (@topic_view.posts[0].post_number / SiteSetting.posts_per_page) + 1
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end
store_preloaded("topic_#{@topic_view.topic.id}", MultiJson.dump(topic_view_serializer))
end
format.json do
render_json_dump(topic_view_serializer)
end
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end
end
end
def destroy_timings
PostTiming.destroy_for(current_user.id, params[:topic_id].to_i)
render nothing: true
end
def update
topic = Topic.where(id: params[:topic_id]).first
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guardian.ensure_can_edit!(topic)
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topic.title = params[:title] if params[:title].present?
# TODO: we may need smarter rules about converting archetypes
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if current_user.admin?
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topic.archetype = "regular" if params[:archetype] == 'regular'
end
Topic.transaction do
topic.save
topic.change_category(params[:category])
end
render nothing: true
end
def status
requires_parameters(:status, :enabled)
raise Discourse::InvalidParameters.new(:status) unless %w(visible closed pinned archived).include?(params[:status])
@topic = Topic.where(id: params[:topic_id].to_i).first
guardian.ensure_can_moderate!(@topic)
@topic.update_status(params[:status], (params[:enabled] == 'true'), current_user)
render nothing: true
end
def star
@topic = Topic.where(id: params[:topic_id].to_i).first
guardian.ensure_can_see!(@topic)
@topic.toggle_star(current_user, params[:starred] == 'true')
render nothing: true
end
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def mute
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toggle_mute(true)
end
def unmute
toggle_mute(false)
end
def destroy
topic = Topic.where(id: params[:id]).first
guardian.ensure_can_delete!(topic)
topic.destroy
render nothing: true
end
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def excerpt
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render nothing: true
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end
def invite
requires_parameter(:user)
topic = Topic.where(id: params[:topic_id]).first
guardian.ensure_can_invite_to!(topic)
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if topic.invite(current_user, params[:user])
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render json: success_json
else
render json: failed_json, status: 422
end
end
def set_notifications
topic = Topic.find(params[:topic_id].to_i)
TopicUser.change(current_user, topic.id, notification_level: params[:notification_level].to_i)
render json: success_json
end
def move_posts
requires_parameters(:title, :post_ids)
topic = Topic.where(id: params[:topic_id]).first
guardian.ensure_can_move_posts!(topic)
# Move the posts
new_topic = topic.move_posts(current_user, params[:title], params[:post_ids].map {|p| p.to_i})
if new_topic.present?
render json: {success: true, url: new_topic.relative_url}
else
render json: {success: false}
end
end
def timings
# TODO: all this should be optimised, tested better
last_seen_key = "user-last-seen:#{current_user.id}"
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last_seen = $redis.get(last_seen_key)
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if last_seen.present?
diff = (Time.now.to_f - last_seen.to_f).round
if diff > 0
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User.update_all ["time_read = time_read + ?", diff], ["id = ? and time_read = ?", current_user.id, current_user.time_read]
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end
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end
$redis.set(last_seen_key, Time.now.to_f)
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original_unread = current_user.unread_notifications_by_type
topic_id = params["topic_id"].to_i
highest_seen = params["highest_seen"].to_i
added_time = 0
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if params[:timings].present?
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params[:timings].each do |post_number_str, t|
post_number = post_number_str.to_i
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if post_number >= 0
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if (highest_seen || 0) >= post_number
Notification.mark_post_read(current_user, topic_id, post_number)
end
PostTiming.record_timing(topic_id: topic_id,
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post_number: post_number,
user_id: current_user.id,
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msecs: t.to_i)
end
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end
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end
TopicUser.update_last_read(current_user, topic_id, highest_seen, params[:topic_time].to_i)
current_user.reload
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if current_user.unread_notifications_by_type != original_unread
current_user.publish_notifications_state
end
render nothing: true
end
private
def toggle_mute(v)
@topic = Topic.where(id: params[:topic_id].to_i).first
guardian.ensure_can_see!(@topic)
@topic.toggle_mute(current_user, v)
render nothing: true
end
end