metamaps--metamaps/app/controllers/topics_controller.rb
2014-08-11 18:57:34 -04:00

138 lines
4.1 KiB
Ruby

class TopicsController < ApplicationController
include TopicsHelper
before_filter :require_user, only: [:create, :update, :destroy]
respond_to :html, :js, :json
# GET /topics/autocomplete_topic
def autocomplete_topic
@current = current_user
term = params[:term]
if term && !term.empty?
# !connor term here needs to have .downcase
@topics = Topic.where('LOWER("name") like ?', term.downcase + '%').order('"name"')
#read this next line as 'delete a topic if its private and you're either
#1. logged out or 2. logged in but not the topic creator
@topics.delete_if {|t| t.permission == "private" &&
(!authenticated? || (authenticated? && @current.id != t.user_id)) }
else
@topics = []
end
render json: autocomplete_array_json(@topics)
end
# GET topics/:id
def show
@current = current_user
@topic = Topic.find(params[:id]).authorize_to_show(@current)
if not @topic
redirect_to root_url and return
end
respond_to do |format|
format.html {
@alltopics = [@topic] + @topic.relatives # should limit to topics visible to user
@allsynapses = @topic.synapses # should also be limited
respond_with(@allsynapses, @alltopics, @topic)
}
format.json { render json: @topic }
end
end
# GET topics/:id/network
def network
@current = current_user
@topic = Topic.find(params[:id]).authorize_to_show(@current)
if not @topic
redirect_to root_url and return
end
@alltopics = @topic.relatives # should limit to topics visible to user
@allsynapses = @topic.synapses # should also be limited
@json = Hash.new()
@json['topic'] = @topic
@json['relatives'] = @alltopics
@json['synapses'] = @allsynapses
respond_to do |format|
format.json { render json: @json }
end
end
# POST /topics
# POST /topics.json
def create
@topic = Topic.new(params[:topic])
respond_to do |format|
if @topic.save
format.json { render json: @topic, status: :created }
else
format.json { render json: @topic.errors, status: :unprocessable_entity }
end
end
end
# PUT /topics/1
# PUT /topics/1.json
def update
@topic = Topic.find(params[:id])
respond_to do |format|
if @topic.update_attributes(params[:topic])
format.json { head :no_content }
else
format.json { render json: @topic.errors, status: :unprocessable_entity }
end
end
end
# DELETE topics/:id
def destroy
@current = current_user
@topic = Topic.find(params[:id]).authorize_to_edit(@current)
if @topic
@synapses = @topic.synapses
@mappings = @topic.mappings
@synapses.each do |synapse|
synapse.mappings.each do |m|
@map = m.map
@map.touch(:updated_at)
#push notify to anyone viewing same map in realtime (see mapping.rb to understand the 'message' action)
m.message 'destroy',@current.id
m.delete
end
synapse.delete
end
@mappings.each do |mapping|
@map = mapping.map
@map.touch(:updated_at)
#push notify to anyone viewing a map with this topic in realtime (see mapping.rb to understand the 'message' action)
mapping.message 'destroy',@current.id
mapping.delete
end
@topic.delete
end
respond_to do |format|
format.js { render :json => "success" }
end
end
end