138 lines
3.2 KiB
Ruby
138 lines
3.2 KiB
Ruby
class Map < ActiveRecord::Base
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belongs_to :user
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has_many :topicmappings, :class_name => 'Mapping', :conditions => {:category => 'Topic'}
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has_many :synapsemappings, :class_name => 'Mapping', :conditions => {:category => 'Synapse'}
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has_many :topics, :through => :topicmappings
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has_many :synapses, :through => :synapsemappings
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# This method associates the attribute ":image" with a file attachment
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has_attached_file :screenshot, :styles => {
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:thumb => ['188x126#', :png]
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#:full => ['940x630#', :png]
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},
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:default_url => "/assets/missing-map.png"
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# Validate the attached image is image/jpg, image/png, etc
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validates_attachment_content_type :screenshot, :content_type => /\Aimage\/.*\Z/
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def mappings
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topicmappings + synapsemappings
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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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#return an array of the contributors to the map
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def contributors
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contributors = []
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self.mappings.each do |m|
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contributors.push(m.user) if !contributors.include?(m.user)
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end
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return contributors
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end
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def topic_count
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self.topics.length
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end
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def synapse_count
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self.synapses.length
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end
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def user_name
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self.user.name
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end
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def user_image
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self.user.image.url
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end
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def contributor_count
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self.contributors.length
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end
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def screenshot_url
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self.screenshot.url(:thumb)
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end
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def created_at_str
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self.created_at.strftime("%m/%d/%Y")
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end
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def updated_at_str
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self.updated_at.strftime("%m/%d/%Y")
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end
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def as_json(options={})
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json = super(:methods =>[:user_name, :user_image, :topic_count, :synapse_count, :contributor_count, :screenshot_url], :except => [:screenshot_content_type, :screenshot_file_size, :screenshot_file_name, :screenshot_updated_at])
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json[:created_at_clean] = self.created_at_str
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json[:updated_at_clean] = self.updated_at_str
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json
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end
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##### PERMISSIONS ######
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def authorize_to_delete(user)
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if (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 '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 !user
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return false
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elsif (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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def decode_base64(imgBase64)
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decoded_data = Base64.decode64(imgBase64)
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data = StringIO.new(decoded_data)
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data.class_eval do
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attr_accessor :content_type, :original_filename
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end
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data.content_type = "image/png"
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data.original_filename = File.basename('map-' + self.id.to_s + '-screenshot.png')
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self.screenshot = data
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self.save
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end
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end
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