259 lines
8.3 KiB
Ruby
259 lines
8.3 KiB
Ruby
class Topic < ActiveRecord::Base
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include TopicsHelper
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belongs_to :user
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has_many :synapses1, :class_name => 'Synapse', :foreign_key => 'node1_id'
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has_many :synapses2, :class_name => 'Synapse', :foreign_key => 'node2_id'
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has_many :topics1, :through => :synapses2, :source => :topic1
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has_many :topics2, :through => :synapses1, :source => :topic2
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has_many :mappings
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has_many :maps, :through => :mappings
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def synapses
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synapses1 + synapses2
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end
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def relatives
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topics1 + topics2
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end
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belongs_to :metacode
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# sends push updates through redis to websockets for realtime updates
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def message action, origin_user_id
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return if self.permission == "private" and action == "create"
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#get array of all maps topic appears in
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@maps = self.maps
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#sends update to all maps that topic appears in who have realtime on
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@maps.each do |map|
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msg = { origin: origin_user_id,
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mapid: map.id,
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resource: 'Topic',
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action: action,
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id: self.id,
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obj: self.selfonmap_as_json(map.id).html_safe }
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$redis.publish 'maps', msg.to_json
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end
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end
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def topic_autocomplete_method
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"Get: #{self.name}"
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end
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def mk_permission
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if self.permission == "commons"
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"co"
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elsif self.permission == "public"
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"pu"
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elsif self.permission == "private"
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"pr"
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end
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end
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# has no viewable synapses helper function
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def has_viewable_synapses(current)
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result = false
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self.synapses.each do |synapse|
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if synapse.authorize_to_view(current)
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result = true
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end
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end
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return result
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end
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###### JSON ######
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def self_as_json
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Jbuilder.encode do |json|
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@inmaps = Array.new
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@mapsString = ""
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self.maps.each_with_index do |map, index|
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@inmaps.push(map.id)
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@mapsString += map.name
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@mapsString += (index+1) == self.maps.count ? "" : ", "
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end
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@topicdata = Hash.new
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@topicdata['$desc'] = self.desc
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@topicdata['$link'] = self.link
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@topicdata['$metacode'] = self.metacode.name
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@topicdata['$inmaps'] = @inmaps
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@topicdata['$inmapsString'] = @mapsString
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@topicdata['$synapseCount'] = self.synapses.count
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@topicdata['$userid'] = self.user.id
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@topicdata['$username'] = self.user.name
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@topicdata['$permission'] = self.permission
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@topicdata['$date'] = self.created_at.strftime("%m/%d/%Y")
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json.data @topicdata
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json.id self.id
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json.name self.name
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end
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end
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def selfonmap_as_json(mapid)
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Jbuilder.encode do |json|
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@inmaps = Array.new
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@mapsString = ""
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self.maps.each_with_index do |map, index|
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@inmaps.push(map.id)
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@mapsString += map.name
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@mapsString += (index+1) == self.maps.count ? "" : ", "
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end
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@topicdata = Hash.new
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@topicdata['$desc'] = self.desc
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@topicdata['$link'] = self.link
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@topicdata['$metacode'] = self.metacode.name
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@topicdata['$inmaps'] = @inmaps
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@topicdata['$inmapsString'] = @mapsString
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@topicdata['$synapseCount'] = self.synapses.count
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@topicdata['$userid'] = self.user.id
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@topicdata['$username'] = self.user.name
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@mapping = Mapping.find_by_topic_id_and_map_id(self.id,mapid)
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@topicdata['$xloc'] = @mapping.xloc
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@topicdata['$yloc'] = @mapping.yloc
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@topicdata['$mappingid'] = @mapping.id
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@topicdata['$permission'] = self.permission
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@topicdata['$date'] = self.created_at.strftime("%m/%d/%Y")
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json.data @topicdata
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json.id self.id
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json.name self.name
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end
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end
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#build a json object of everything connected to a specified node
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def network_as_json(current)
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Jbuilder.encode do |json|
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@topics = network(self,nil,1)
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if @topics.count > 1
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json.array!(@topics.delete_if{|topic| (not topic.authorize_to_view(current)) || (not topic.has_viewable_synapses(current))}) do |topic|
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json.adjacencies topic.synapses1.delete_if{|synapse| (not @topics.include?(synapse.topic2)) || (not synapse.authorize_to_view(current)) || (not synapse.topic2.authorize_to_view(current)) } do |json, synapse|
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json.nodeTo synapse.node2_id
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json.nodeFrom synapse.node1_id
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@synapsedata = Hash.new
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@synapsedata['$alpha'] = 0.4
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@synapsedata['$desc'] = synapse.desc
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@synapsedata['$showDesc'] = false
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@synapsedata['$category'] = synapse.category
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@synapsedata['$id'] = synapse.id
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@synapsedata['$userid'] = synapse.user.id
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@synapsedata['$username'] = synapse.user.name
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@synapsedata['$direction'] = [synapse.node1_id.to_s(), synapse.node2_id.to_s()]
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@synapsedata['$permission'] = synapse.permission
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json.data @synapsedata
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end
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@inmaps = Array.new
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@mapsString = ""
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topic.maps.each_with_index do |map, index|
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@inmaps.push(map.id)
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@mapsString += map.name
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@mapsString += (index+1) == topic.maps.count ? "" : ", "
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end
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@topicdata = Hash.new
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@topicdata['$desc'] = topic.desc
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@topicdata['$link'] = topic.link
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@topicdata['$metacode'] = topic.metacode.name
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@topicdata['$inmaps'] = @inmaps
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@topicdata['$inmapsString'] = @mapsString
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@topicdata['$synapseCount'] = topic.synapses.count
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@topicdata['$userid'] = topic.user.id
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@topicdata['$username'] = topic.user.name
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@topicdata['$permission'] = topic.permission
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@topicdata['$date'] = topic.created_at.strftime("%m/%d/%Y")
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json.data @topicdata
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json.id topic.id
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json.name topic.name
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end
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elsif @topics.count == 1
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json.array!(@topics) do |topic|
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@inmaps = Array.new
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@mapsString = ""
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topic.maps.each_with_index do |map, index|
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@inmaps.push(map.id)
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@mapsString += map.name
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@mapsString += (index+1) == topic.maps.count ? "" : ", "
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end
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@topicdata = Hash.new
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@topicdata['$desc'] = topic.desc
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@topicdata['$link'] = topic.link
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@topicdata['$metacode'] = topic.metacode.name
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@topicdata['$inmaps'] = @inmaps
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@topicdata['$inmapsString'] = @mapsString
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@topicdata['$synapseCount'] = topic.synapses.count
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@topicdata['$userid'] = topic.user.id
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@topicdata['$username'] = topic.user.name
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@topicdata['$permission'] = topic.permission
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@topicdata['$date'] = topic.created_at.strftime("%m/%d/%Y")
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json.data @topicdata
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json.id topic.id
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json.name topic.name
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end
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end
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end
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end
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##### PERMISSIONS ######
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scope :visibleToUser, lambda { |current, user|
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if user != nil
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if user != current
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Topic.find_all_by_user_id_and_permission(user.id, "commons") | Topic.find_all_by_user_id_and_permission(user.id, "public")
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elsif user == current
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Topic.find_all_by_user_id_and_permission(user.id, "commons") | Topic.find_all_by_user_id_and_permission(user.id, "public") | current.topics.where(:permission => "private")
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end
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elsif (current != nil && user == nil)
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Topic.find_all_by_permission("commons") | Topic.find_all_by_permission("public") | current.topics.where(:permission => "private")
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elsif (current == nil)
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Topic.find_all_by_permission("commons") | Topic.find_all_by_permission("public")
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end
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}
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# returns false if user not allowed to 'show' Topic, Synapse, or Map
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def authorize_to_show(user)
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if (self.permission == "private" && self.user != user)
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return false
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end
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return self
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end
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# returns false if user not allowed to 'edit' Topic, Synapse, or Map
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def authorize_to_edit(user)
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if (self.permission == "private" && self.user != user)
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return false
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elsif (self.permission == "public" && self.user != user)
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return false
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end
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return self
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end
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# returns Boolean if user allowed to view Topic, Synapse, or Map
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def authorize_to_view(user)
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if (self.permission == "private" && self.user != user)
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return false
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end
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return true
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end
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# returns Boolean based on whether user has permissions to edit or not
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def authorize_linkto_edit(user)
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if (self.user == user)
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return true
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elsif (self.permission == "commons")
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return true
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end
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return false
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end
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end
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