Class: ForestLiana::ValueStatGetter

Inherits:
Object
  • Object
show all
Defined in:
app/services/forest_liana/value_stat_getter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(resource, params) ⇒ ValueStatGetter

Returns a new instance of ValueStatGetter.



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# File 'app/services/forest_liana/value_stat_getter.rb', line 5

def initialize(resource, params)
  @resource = resource
  @params = params
end

Instance Attribute Details

#record ⇒ Object

Returns the value of attribute record.



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# File 'app/services/forest_liana/value_stat_getter.rb', line 3

def record
  @record
end

Instance Method Details

#perform ⇒ Object 



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# File 'app/services/forest_liana/value_stat_getter.rb', line 10

def perform
  return if @params[:aggregate].blank?
  valueCurrent = @resource
  valuePrevious = @resource

  @params[:filters].try(:each) do |filter|
    operator, filter_value = OperatorValueParser.parse(filter[:value])
    valueCurrent = OperatorValueParser.add_where(valueCurrent,
      filter[:field], operator, filter_value, @resource)
  end

  filter_date_interval = false
  @params[:filters].try(:each) do |filter|
    operator, filter_value = OperatorValueParser.parse(filter[:value])
    operator_date_interval_parser = OperatorDateIntervalParser.new(filter_value)
    if operator_date_interval_parser.is_interval_date_value()
      field_name = OperatorValueParser.get_field_name(filter[:field], @resource)
      filter = operator_date_interval_parser
        .get_interval_date_filter_for_previous_interval()
      valuePrevious = valuePrevious.where("#{field_name} #{filter}")
      filter_date_interval = true
    else
      valuePrevious = OperatorValueParser.add_where(valuePrevious,
        filter[:field], operator, filter_value, @resource)
    end
  end

  @record = Model::Stat.new(value: {
    countCurrent: count(valueCurrent),
    countPrevious: filter_date_interval ? count(valuePrevious) : nil
  })
end