metamaps--metamaps/app/models/synapse.rb

112 lines
3.3 KiB
Ruby

class Synapse < ActiveRecord::Base
belongs_to :user
belongs_to :item1, :class_name => "Item", :foreign_key => "node1_id"
belongs_to :item2, :class_name => "Item", :foreign_key => "node2_id"
has_many :mappings
has_many :maps, :through => :mappings
##### JSON ######
def self_as_json
Jbuilder.encode do |json|
@synapsedata = Hash.new
@synapsedata['$desc'] = self.desc
@synapsedata['$showDesc'] = false
@synapsedata['$category'] = self.category
@synapsedata['$id'] = synapse.id
@synapsedata['$userid'] = synapse.user.id
@synapsedata['$username'] = synapse.user.name
json.data @synapsedata
end
end
def selfplusnodes_as_json
Jbuilder.encode do |json|
@items = Array.new
@items.push(self.item1)
@items.push(self.item2)
json.array!(@items) do |item|
json.adjacencies item.synapses2.delete_if{|synapse| not @items.include?(Item.find_by_id(synapse.node1_id))} do |json, synapse|
json.nodeTo synapse.node1_id
json.nodeFrom synapse.node2_id
@synapsedata = Hash.new
@synapsedata['$desc'] = synapse.desc
@synapsedata['$showDesc'] = false
@synapsedata['$category'] = synapse.category
@synapsedata['$id'] = synapse.id
@synapsedata['$userid'] = synapse.user.id
@synapsedata['$username'] = synapse.user.name
json.data @synapsedata
end
@itemdata = Hash.new
@itemdata['$desc'] = item.desc
@itemdata['$link'] = item.link
@itemdata['$itemcatname'] = item.item_category.name
@itemdata['$userid'] = self.user.id
@itemdata['$username'] = self.user.name
json.data @itemdata
json.id item.id
json.name item.name
end
end
end
##### PERMISSIONS ######
scope :visibleToUser, lambda { |current, user|
if user != nil
if user != current
Synapse.find_all_by_user_id_and_permission(user.id, "commons") | Synapse.find_all_by_user_id_and_permission(user.id, "public")
elsif user == current
Synapse.find_all_by_user_id_and_permission(user.id, "commons") | Synapse.find_all_by_user_id_and_permission(user.id, "public") | current.synapses.where(:permission => "private")
end
elsif (current != nil && user == nil)
Synapse.find_all_by_permission("commons") | Synapse.find_all_by_permission("public") | current.synapses.where(:permission => "private")
elsif (current == nil)
Synapse.find_all_by_permission("commons") | Synapse.find_all_by_permission("public")
end
}
# returns false if user not allowed to 'show' Topic, Synapse, or Map
def authorize_to_show(user)
if (self.permission == "private" && self.user != user)
return false
end
return self
end
# returns false if user not allowed to 'edit' Topic, Synapse, or Map
def authorize_to_edit(user)
if (self.permission == "private" && self.user != user)
return false
elsif (self.permission == "public" && self.user != user)
return false
end
return self
end
# returns Boolean if user allowed to view Topic, Synapse, or Map
def authorize_to_view(user)
if (self.permission == "private" && self.user != user)
return false
end
return true
end
# returns Boolean based on whether user has permissions to edit or not
def authorize_linkto_edit(user)
if (self.user == user)
return true
elsif (self.permission == "commons")
return true
end
return false
end
end