Class: AreaDataVariable

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
app/models/area_data_variable.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.long_description(area_data_variables) ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 128

def self.long_description(area_data_variables)
  if area_data_variables.count > 0
    str = []
    area_data_variables.each do |adv|
      str << adv.long_description
    end
    str.join("\n")
  else
    "No Area-level Variables"
  end
end

Instance Method Details

#availability_by_country ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 97

def availability_by_country
  store = {}
  sample_level_area_data_variables.includes(terrapop_sample: :country).find_each do |sladv|
    unless sladv.terrapop_sample.country.nil?
      country_code = sladv.terrapop_sample.country.full_name
      store[country_code] ||= []
      store[country_code] << sladv.terrapop_sample.year
    end
  end
  store = Hash[store.sort]
  _availability_by_country = {}
  store.each { |key, val| _availability_by_country[key] = val.uniq.sort }
  _availability_by_country
end

#availability_by_country_and_long_year ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 92

def availability_by_country_and_long_year
  terrapop_samples.map{ |terrapop_sample| terrapop_sample.short_country_name_long_year }.uniq
end

#categories ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 87

def categories
  []
end

#category_id ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 118

def category_id
  area_data_table.category_id
end

#construct_synthetic_mnemonic(sample_geog_level) ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 47

def construct_synthetic_mnemonic(sample_geog_level)
  mnm = "#{mnemonic}_"
  mnm +=
    if sample_geog_level.geolink_variable.nil?
      "#{sample_geog_level.terrapop_sample.short_country_name.upcase}_#{sample_geog_level.country_level.geog_unit.code.upcase}"
    else
      "#{sample_geog_level.geolink_variable.mnemonic}"
    end
  mnm += "_#{sample_geog_level.terrapop_sample.dataset_identifier}"
  mnm.upcase
end

#construct_synthetic_mnemonic_sym(sample_geog_level) ⇒ Object

Need this to be accessible before retrieving area_data_values, since the synthetic_mnemonic is needed at request time but the data isn’t known yet.



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# File 'app/models/area_data_variable.rb', line 42

def construct_synthetic_mnemonic_sym(sample_geog_level)
  construct_synthetic_mnemonic(sample_geog_level).to_sym
end

#data_type ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 70

def data_type
  case measurement_type.label
    when 'Count', 'Modal'
      'integer'
    when 'Mean', 'Median', 'Percentage', 'Area'
      'decimal'
    else
      'integer'
  end
end

#implied_decimal_places ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 60

def implied_decimal_places
  case data_type
    when 'integer'
      0
    when 'decimal'
      3
  end
end

#len ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 82

def len
  10
end

#long_description ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 123

def long_description
  mnemonic + " " + label + " (" + measurement_type.label + ")"
end

#mnemonic_sym ⇒ Object

return the mnemonic for this variable as a symbol.



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# File 'app/models/area_data_variable.rb', line 35

def mnemonic_sym
  mnemonic.to_sym
end

#to_s ⇒ Object 



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# File 'app/models/area_data_variable.rb', line 113

def to_s
  mnemonic.nil? ? "<not set>" : mnemonic
end

#var_for_sample_level(sample_geog_level) ⇒ Object

given a sample_geog_level, return the sample_level_area_data_variable for this var for that sample_geog_level. there should only be one.



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# File 'app/models/area_data_variable.rb', line 29

def var_for_sample_level(sample_geog_level)
  sample_level_area_data_variables.belonging_to_level(sample_geog_level).first
end