metamaps--metamaps/app/models/topic.rb

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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'
has_many :synapses2, :class_name => 'Synapse', :foreign_key => 'node2_id'
has_many :topics1, :through => :synapses2, :source => :topic1
has_many :topics2, :through => :synapses1, :source => :topic2
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has_many :mappings
has_many :maps, :through => :mappings
# This method associates the attribute ":image" with a file attachment
has_attached_file :image
#, styles: {
# thumb: '100x100>',
# square: '200x200#',
# medium: '300x300>'
#}
# Validate the attached image is image/jpg, image/png, etc
validates_attachment_content_type :image, :content_type => /\Aimage\/.*\Z/
# This method associates the attribute ":image" with a file attachment
has_attached_file :audio
# Validate the attached audio is audio/wav, audio/mp3, etc
validates_attachment_content_type :audio, :content_type => /\Aaudio\/.*\Z/
def synapses
synapses1 + synapses2
end
def relatives
topics1 + topics2
end
belongs_to :metacode
def user_name
self.user.name
end
def user_image
self.user.image.url
end
def map_count
self.maps.count
end
def synapse_count
self.synapses.count
end
def inmaps
self.maps.map(&:name)
end
def inmapsLinks
self.maps.map(&:id)
end
def as_json(options={})
super(:methods =>[:user_name, :user_image, :map_count, :synapse_count, :inmaps, :inmapsLinks])
end
def topic_autocomplete_method
"Get: #{self.name}"
end
def mk_permission
if self.permission == "commons"
"co"
elsif self.permission == "public"
"pu"
elsif self.permission == "private"
"pr"
end
end
# has no viewable synapses helper function
def has_viewable_synapses(current)
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result = false
self.synapses.each do |synapse|
if synapse.authorize_to_view(current)
result = true
end
end
return result
end
##### PERMISSIONS ######
# 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
def authorize_to_delete(user)
if (self.user == user || user.admin)
return self
end
return false
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
end