138 lines
4.2 KiB
Ruby
138 lines
4.2 KiB
Ruby
# == Schema Information
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#
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# Table name: feeds
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#
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# id :integer not null, primary key
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# channel_id :integer
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# field1 :string(255)
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# field2 :string(255)
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# field3 :string(255)
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# field4 :string(255)
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# field5 :string(255)
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# field6 :string(255)
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# field7 :string(255)
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# field8 :string(255)
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# created_at :datetime
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# updated_at :datetime
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# entry_id :integer
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# status :string(255)
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# latitude :decimal(15, 10)
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# longitude :decimal(15, 10)
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# elevation :string(255)
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# location :string(255)
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#
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class Feed < ActiveRecord::Base
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extend FeedHelper
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belongs_to :channel
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after_commit :queue_react
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delegate :queue_react, :to => :channel
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self.include_root_in_json = false
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attr_readonly :created_at
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# only output these fields for feed
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def self.select_options(channel, params)
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only = [:created_at]
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only += [:entry_id] unless timeparam_valid?(params[:timescale]) or timeparam_valid?(params[:average]) or timeparam_valid?(params[:median]) or timeparam_valid?(params[:sum])
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only += [:field1] unless channel.field1.blank? or (params[:field_id] and !params[:field_id].index('1'))
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only += [:field2] unless channel.field2.blank? or (params[:field_id] and !params[:field_id].index('2'))
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only += [:field3] unless channel.field3.blank? or (params[:field_id] and !params[:field_id].index('3'))
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only += [:field4] unless channel.field4.blank? or (params[:field_id] and !params[:field_id].index('4'))
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only += [:field5] unless channel.field5.blank? or (params[:field_id] and !params[:field_id].index('5'))
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only += [:field6] unless channel.field6.blank? or (params[:field_id] and !params[:field_id].index('6'))
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only += [:field7] unless channel.field7.blank? or (params[:field_id] and !params[:field_id].index('7'))
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only += [:field8] unless channel.field8.blank? or (params[:field_id] and !params[:field_id].index('8'))
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# add geolocation data if necessary
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if params[:location] and params[:location].upcase == 'TRUE'
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only += [:latitude]
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only += [:longitude]
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only += [:elevation]
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only += [:location]
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end
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# add status if necessary
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only += [:status] if params[:status] and params[:status].upcase == 'TRUE'
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return only
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end
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# outputs feed info correctly, used by daily_feeds
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def self.normalize_feeds(daily_feeds)
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output = []
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hash = {}
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# for each daily feed
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daily_feeds.each do |daily_feed|
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# check if the feed already exists
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existing_feed = hash[daily_feed['date']]
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# skip blank feeds
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next if daily_feed['date'].blank?
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# if the feed exists
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if existing_feed.present?
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# add the new field
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existing_feed["field#{daily_feed['field']}"] = daily_feed['result']
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# else add a new feed
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else
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new_feed = Feed.new(:created_at => daily_feed['date'])
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# set the field attribute correctly
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new_feed["field#{daily_feed['field']}"] = daily_feed['result']
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# add the feed
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hash[daily_feed['date']] = new_feed
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end
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end
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# turn the hash into an array
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output = hash.values
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# sort by date
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return output
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end
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# custom json output
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def as_json(options = {})
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super(options.merge(:except => [:updated_at, :id]))
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end
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# check if a field value is a number
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# usage: Feed.numeric?(field_value)
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def self.numeric?(object)
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true if Float(object) rescue false
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end
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def field(number)
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self.attributes["field#{number.to_i}"]
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end
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# make sure any selected fields are greater than a minimum
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def greater_than?(minimum)
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output = true
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self.attributes.each do |attribute|
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# if this attribute is a numeric field with a value
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if attribute[0].to_s.index('field') == 0 && attribute[1].present? && Feed.numeric?(attribute[1])
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output = false if attribute[1].to_f < minimum.to_f
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end
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end
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return output
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end
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# make sure any selected fields are less than a minimum
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def less_than?(maximum)
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output = true
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self.attributes.each do |attribute|
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# if this attribute is a numeric field with a value
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if attribute[0].to_s.index('field') == 0 && attribute[1].present? && Feed.numeric?(attribute[1])
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output = false if attribute[1].to_f > maximum.to_f
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end
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end
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return output
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end
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end
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