discourse/app/controllers/categories_controller.rb

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require_dependency 'category_serializer'
class CategoriesController < ApplicationController
before_filter :ensure_logged_in, except: [:index, :categories_and_latest, :show, :redirect, :find_by_slug]
before_filter :fetch_category, only: [:show, :update, :destroy]
before_filter :initialize_staff_action_logger, only: [:create, :update, :destroy]
skip_before_filter :check_xhr, only: [:index, :categories_and_latest, :redirect]
def redirect
redirect_to path("/c/#{params[:path]}")
end
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def index
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discourse_expires_in 1.minute
@description = SiteSetting.site_description
parent_category = Category.find_by(slug: params[:parent_category_id]) || Category.find_by(id: params[:parent_category_id].to_i)
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category_options = {
is_homepage: current_homepage == "categories".freeze,
parent_category_id: params[:parent_category_id],
include_topics: include_topics(parent_category)
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}
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@category_list = CategoryList.new(guardian, category_options)
@category_list.draft_key = Draft::NEW_TOPIC
@category_list.draft_sequence = DraftSequence.current(current_user, Draft::NEW_TOPIC)
@category_list.draft = Draft.get(current_user, Draft::NEW_TOPIC, @category_list.draft_sequence) if current_user
@title = "#{I18n.t('js.filters.categories.title')} - #{SiteSetting.title}" unless category_options[:is_homepage]
respond_to do |format|
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format.html do
store_preloaded(@category_list.preload_key, MultiJson.dump(CategoryListSerializer.new(@category_list, scope: guardian)))
if SiteSetting.desktop_category_page_style == "categories_and_latest_topics".freeze
topic_options = { per_page: SiteSetting.categories_topics, no_definitions: true }
topic_list = TopicQuery.new(current_user, topic_options).list_latest
store_preloaded(topic_list.preload_key, MultiJson.dump(TopicListSerializer.new(topic_list, scope: guardian)))
end
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render
end
format.json { render_serialized(@category_list, CategoryListSerializer) }
end
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end
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def categories_and_latest
discourse_expires_in 1.minute
category_options = {
is_homepage: current_homepage == "categories".freeze,
parent_category_id: params[:parent_category_id],
include_topics: false
}
topic_options = {
per_page: SiteSetting.categories_topics,
no_definitions: true,
exclude_category_ids: Category.where(suppress_from_homepage: true).pluck(:id)
}
result = CategoryAndTopicLists.new
result.category_list = CategoryList.new(guardian, category_options)
result.topic_list = TopicQuery.new(current_user, topic_options).list_latest
draft_key = Draft::NEW_TOPIC
draft_sequence = DraftSequence.current(current_user, draft_key)
draft = Draft.get(current_user, draft_key, draft_sequence) if current_user
%w{category topic}.each do |type|
result.send(:"#{type}_list").draft = draft
result.send(:"#{type}_list").draft_key = draft_key
result.send(:"#{type}_list").draft_sequence = draft_sequence
end
render_serialized(result, CategoryAndTopicListsSerializer, root: false)
end
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def move
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guardian.ensure_can_create_category!
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params.require("category_id")
params.require("position")
if category = Category.find(params["category_id"])
category.move_to(params["position"].to_i)
render json: success_json
else
render status: 500, json: failed_json
end
end
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def reorder
guardian.ensure_can_create_category!
params.require(:mapping)
change_requests = MultiJson.load(params[:mapping])
by_category = Hash[change_requests.map { |cat, pos| [Category.find(cat.to_i), pos] }]
unless guardian.is_admin?
raise Discourse::InvalidAccess unless by_category.keys.all? { |c| guardian.can_see_category? c }
end
by_category.each do |cat, pos|
cat.position = pos
cat.save if cat.position_changed?
end
render json: success_json
end
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def show
if Category.topic_create_allowed(guardian).where(id: @category.id).exists?
@category.permission = CategoryGroup.permission_types[:full]
end
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render_serialized(@category, CategorySerializer)
end
def create
guardian.ensure_can_create!(Category)
position = category_params.delete(:position)
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@category = Category.create(category_params.merge(user: current_user))
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if @category.save
@category.move_to(position.to_i) if position
Scheduler::Defer.later "Log staff action create category" do
@staff_action_logger.log_category_creation(@category)
end
render_serialized(@category, CategorySerializer)
else
return render_json_error(@category) unless @category.save
end
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end
def update
guardian.ensure_can_edit!(@category)
json_result(@category, serializer: CategorySerializer) do |cat|
cat.move_to(category_params[:position].to_i) if category_params[:position]
category_params.delete(:position)
# properly null the value so the database constraint doesn't catch us
if category_params.has_key?(:email_in) && category_params[:email_in].blank?
category_params[:email_in] = nil
end
old_permissions = cat.permissions_params
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if result = cat.update_attributes(category_params)
Scheduler::Defer.later "Log staff action change category settings" do
@staff_action_logger.log_category_settings_change(@category, category_params, old_permissions)
end
end
result
end
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end
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def update_slug
@category = Category.find(params[:category_id].to_i)
guardian.ensure_can_edit!(@category)
custom_slug = params[:slug].to_s
if custom_slug.present? && @category.update_attributes(slug: custom_slug)
render json: success_json
else
render_json_error(@category)
end
end
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def set_notifications
category_id = params[:category_id].to_i
notification_level = params[:notification_level].to_i
CategoryUser.set_notification_level_for_category(current_user, notification_level, category_id)
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render json: success_json
end
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def destroy
guardian.ensure_can_delete!(@category)
@category.destroy
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Scheduler::Defer.later "Log staff action delete category" do
@staff_action_logger.log_category_deletion(@category)
end
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render json: success_json
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end
def find_by_slug
params.require(:category_slug)
@category = Category.find_by_slug(params[:category_slug], params[:parent_category_slug])
guardian.ensure_can_see!(@category)
@category.permission = CategoryGroup.permission_types[:full] if Category.topic_create_allowed(guardian).where(id: @category.id).exists?
render_serialized(@category, CategorySerializer)
end
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private
def required_param_keys
[:name, :color, :text_color]
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end
def category_params
@category_params ||= begin
required_param_keys.each do |key|
params.require(key)
end
if p = params[:permissions]
p.each do |k,v|
p[k] = v.to_i
end
end
if SiteSetting.tagging_enabled
params[:allowed_tags] ||= []
params[:allowed_tag_groups] ||= []
end
params.permit(*required_param_keys,
:position,
:email_in,
:email_in_allow_strangers,
:suppress_from_homepage,
:all_topics_wiki,
:parent_category_id,
:auto_close_hours,
:auto_close_based_on_last_post,
:uploaded_logo_id,
:uploaded_background_id,
:slug,
:allow_badges,
:topic_template,
:sort_order,
:sort_ascending,
:topic_featured_link_allowed,
:show_subcategory_list,
:num_featured_topics,
:default_view,
:subcategory_list_style,
:default_top_period,
:custom_fields => [params[:custom_fields].try(:keys)],
:permissions => [*p.try(:keys)],
:allowed_tags => [],
:allowed_tag_groups => [])
end
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end
def fetch_category
@category = Category.find_by(slug: params[:id]) || Category.find_by(id: params[:id].to_i)
end
def initialize_staff_action_logger
@staff_action_logger = StaffActionLogger.new(current_user)
end
def include_topics(parent_category=nil)
view_context.mobile_view? ||
params[:include_topics] ||
(parent_category && parent_category.subcategory_list_includes_topics?) ||
SiteSetting.desktop_category_page_style == "categories_with_featured_topics".freeze
end
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end