Initial commit

app/models/automatic_geocoding.rb

@@ -0,0 +1,52 @@
+class AutomaticGeocoding < Sequel::Model
+
+  MAX_RETRIES = 5
+
+  many_to_one :table, class: :UserTable
+  one_to_many :geocodings, order: :created_at
+
+  def self.active
+    AutomaticGeocoding.where("state IN ?", ['created', 'idle']).all.select do |ag|
+      last_modified = ag.table.data_last_modified || 1.year.ago
+      last_modified > ag.ran_at
+    end
+  end # active
+
+  def before_create
+    super
+    self.created_at ||= Time.now
+    self.ran_at     ||= Time.now
+    self.state      ||= 'created'
+  end # before_create
+
+  def before_save
+    super
+    self.updated_at = Time.now
+  end # before_save
+
+  def validate
+    super
+    validates_presence :table_id
+  end # validate
+
+  def enqueue
+    self.update(state: 'on_queue')
+    Resque.enqueue(Resque::AutomaticGeocoderJobs, job_id: id)
+  end # enqueue
+
+  def run
+    self.update(state: 'running')
+    options = { 
+      user_id:                table.owner.id,
+      table_id:               table.id,
+      formatter:              geocodings.first.formatter,
+      automatic_geocoding_id: self.id
+    }
+
+    Geocoding.create(options).run!
+    self.update(state: 'idle', ran_at: Time.now, retried_times: 0)
+  rescue => e
+    self.update(state: 'failed') and raise(e) if retried_times.to_i >= MAX_RETRIES
+    self.update(retried_times: retried_times.to_i + 1, state: 'idle')
+  end # run
+end # AutomaticGeocoding