discourse/app/controllers/list_controller.rb

170 lines
5.6 KiB
Ruby

class ListController < ApplicationController
before_filter :ensure_logged_in, except: [:latest, :hot, :category, :category_feed, :latest_feed, :hot_feed, :topics_by]
before_filter :set_category, only: [:category, :category_feed]
skip_before_filter :check_xhr
# Create our filters
[:latest, :hot, :favorited, :read, :posted, :unread, :new].each do |filter|
define_method(filter) do
list_opts = build_topic_list_options
user = list_target_user
list = TopicQuery.new(user, list_opts).public_send("list_#{filter}")
list.more_topics_url = construct_url_with(filter, list_opts)
if [:latest, :hot].include?(filter)
@description = SiteSetting.site_description
@rss = filter
end
respond(list)
end
end
[:latest, :hot].each do |filter|
define_method("#{filter}_feed") do
discourse_expires_in 1.minute
@title = "#{filter.capitalize} Topics"
@link = "#{Discourse.base_url}/#{filter}"
@description = I18n.t("rss_description.#{filter}")
@atom_link = "#{Discourse.base_url}/#{filter}.rss"
@topic_list = TopicQuery.new.public_send("list_#{filter}")
render 'list', formats: [:rss]
end
end
[:topics_by, :private_messages, :private_messages_sent, :private_messages_unread].each do |action|
define_method("#{action}") do
list_opts = build_topic_list_options
target_user = fetch_user_from_params
guardian.ensure_can_see_private_messages!(target_user.id) unless action == :topics_by
list = generate_list_for(action.to_s, target_user, list_opts)
url_prefix = "topics" unless action == :topics_by
url = construct_url_with(action, list_opts, url_prefix)
list.more_topics_url = url_for(url)
respond(list)
end
end
def category
query = TopicQuery.new(current_user, page: params[:page])
if !@category
raise Discourse::NotFound
return
end
guardian.ensure_can_see!(@category)
list = query.list_category(@category)
@description = @category.description
if params[:parent_category].present?
list.more_topics_url = url_for(category_list_parent_path(params[:parent_category], params[:category], next_page_params))
else
list.more_topics_url = url_for(category_list_path(params[:category], next_page_params))
end
respond(list)
end
def category_feed
guardian.ensure_can_see!(@category)
discourse_expires_in 1.minute
@title = @category.name
@link = "#{Discourse.base_url}/category/#{@category.slug}"
@description = "#{I18n.t('topics_in_category', category: @category.name)} #{@category.description}"
@atom_link = "#{Discourse.base_url}/category/#{@category.slug}.rss"
@topic_list = TopicQuery.new.list_new_in_category(@category)
render 'list', formats: [:rss]
end
def popular_redirect
# We've renamed popular to latest. Use a redirect until we're sure we can
# safely remove this.
redirect_to latest_path, :status => 301
end
protected
def respond(list)
list.draft_key = Draft::NEW_TOPIC
list.draft_sequence = DraftSequence.current(current_user, Draft::NEW_TOPIC)
draft = Draft.get(current_user, list.draft_key, list.draft_sequence) if current_user
list.draft = draft
discourse_expires_in 1.minute
respond_to do |format|
format.html do
@list = list
store_preloaded('topic_list', MultiJson.dump(TopicListSerializer.new(list, scope: guardian)))
render 'list'
end
format.json do
render_serialized(list, TopicListSerializer)
end
end
end
def next_page_params(opts=nil)
opts = opts || {}
route_params = { format: 'json', page: params[:page].to_i + 1 }
route_params[:sort_order] = opts[:sort_order] if opts[:sort_order].present?
route_params[:sort_descending] = opts[:sort_descending] if opts[:sort_descending].present?
route_params
end
private
def set_category
slug = params.fetch(:category)
parent_slug = params[:parent_category]
parent_category_id = nil
if parent_slug.present?
parent_category_id = Category.where(slug: parent_slug).pluck(:id).first ||
Category.where(id: parent_slug.to_i).pluck(:id).first
raise Discourse::NotFound.new if parent_category_id.blank?
end
@category = Category.where(slug: slug, parent_category_id: parent_category_id).includes(:featured_users).first ||
Category.where(id: slug.to_i, parent_category_id: parent_category_id).includes(:featured_users).first
end
def build_topic_list_options
# html format means we need to parse exclude category (aka filter) from the site options top menu
menu_items = SiteSetting.top_menu_items
menu_item = menu_items.select { |item| item.query_should_exclude_category?(action_name, params[:format]) }.first
# exclude_category = 1. from params / 2. parsed from top menu / 3. nil
return {
page: params[:page],
topic_ids: param_to_integer_list(:topic_ids),
exclude_category: (params[:exclude_category] || menu_item.try(:filter)),
category: params[:category],
sort_order: params[:sort_order],
sort_descending: params[:sort_descending]
}
end
def list_target_user
if params[:user_id] && guardian.is_staff?
User.find(params[:user_id].to_i)
else
current_user
end
end
def generate_list_for(action, target_user, opts)
TopicQuery.new(current_user, opts).send("list_#{action}", target_user)
end
def construct_url_with(action, opts, url_prefix=nil)
method = url_prefix.blank? ? "#{action}_path" : "#{url_prefix}_#{action}_path"
public_send(method, opts.merge(next_page_params(opts)))
end
end